From 27a83e65b26bf069c5e5096b2067a84f42c45092 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Thu, 13 Sep 2018 10:47:14 -0700
Subject: [PATCH 01/16] C++: add RelationalOpcode and RelationalInstruction

---
 .../code/cpp/ir/implementation/Opcode.qll     | 10 ++--
 .../aliased_ssa/Instruction.qll               | 49 +++++++++++++++++--
 2 files changed, 51 insertions(+), 8 deletions(-)

diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/Opcode.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/Opcode.qll
index dd12ea1a8a54..992dde33bcc7 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/Opcode.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/Opcode.qll
@@ -76,6 +76,8 @@ abstract class PointerOffsetOpcode extends PointerArithmeticOpcode {}
 
 abstract class CompareOpcode extends BinaryOpcode {}
 
+abstract class RelationalOpcode extends CompareOpcode {}
+
 abstract class CopyOpcode extends Opcode {}
 
 abstract class MemoryAccessOpcode extends Opcode {}
@@ -117,10 +119,10 @@ module Opcode {
   class LogicalNot extends UnaryOpcode, TLogicalNot { override final string toString() { result = "LogicalNot" } }
   class CompareEQ extends CompareOpcode, TCompareEQ { override final string toString() { result = "CompareEQ" } }
   class CompareNE extends CompareOpcode, TCompareNE { override final string toString() { result = "CompareNE" } }
-  class CompareLT extends CompareOpcode, TCompareLT { override final string toString() { result = "CompareLT" } }
-  class CompareGT extends CompareOpcode, TCompareGT { override final string toString() { result = "CompareGT" } }
-  class CompareLE extends CompareOpcode, TCompareLE { override final string toString() { result = "CompareLE" } }
-  class CompareGE extends CompareOpcode, TCompareGE { override final string toString() { result = "CompareGE" } }
+  class CompareLT extends RelationalOpcode, TCompareLT { override final string toString() { result = "CompareLT" } }
+  class CompareGT extends RelationalOpcode, TCompareGT { override final string toString() { result = "CompareGT" } }
+  class CompareLE extends RelationalOpcode, TCompareLE { override final string toString() { result = "CompareLE" } }
+  class CompareGE extends RelationalOpcode, TCompareGE { override final string toString() { result = "CompareGE" } }
   class PointerAdd extends PointerOffsetOpcode, TPointerAdd { override final string toString() { result = "PointerAdd" } }
   class PointerSub extends PointerOffsetOpcode, TPointerSub { override final string toString() { result = "PointerSub" } }
   class PointerDiff extends PointerArithmeticOpcode, TPointerDiff { override final string toString() { result = "PointerDiff" } }
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
index e63fd979def7..d70f4f8a36e4 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
@@ -967,28 +967,69 @@ class CompareNEInstruction extends CompareInstruction {
   }
 }
 
-class CompareLTInstruction extends CompareInstruction {
+class RelationalInstruction extends CompareInstruction {
+  RelationalInstruction() {
+    opcode instanceof RelationalOpcode
+  }
+
+  abstract Instruction getGreaterOperand();
+  abstract Instruction getLesserOperand();
+}
+
+class CompareLTInstruction extends RelationalInstruction {
   CompareLTInstruction() {
     opcode instanceof Opcode::CompareLT
   }
+
+  override Instruction getLesserOperand() {
+    result = getLeftOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getRightOperand()
+  }
 }
 
-class CompareGTInstruction extends CompareInstruction {
+class CompareGTInstruction extends RelationalInstruction {
   CompareGTInstruction() {
     opcode instanceof Opcode::CompareGT
   }
+
+  override Instruction getLesserOperand() {
+    result = getRightOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getLeftOperand()
+  }
 }
 
-class CompareLEInstruction extends CompareInstruction {
+class CompareLEInstruction extends RelationalInstruction {
   CompareLEInstruction() {
     opcode instanceof Opcode::CompareLE
   }
+
+  override Instruction getLesserOperand() {
+    result = getLeftOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getRightOperand()
+  }
 }
 
-class CompareGEInstruction extends CompareInstruction {
+class CompareGEInstruction extends RelationalInstruction {
   CompareGEInstruction() {
     opcode instanceof Opcode::CompareGE
   }
+
+  override Instruction getLesserOperand() {
+    result = getRightOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getLeftOperand()
+  }
 }
 
 class SwitchInstruction extends Instruction {

From 4e1a37cd6e9b000cb4c246068da314a1c26be1be Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Fri, 14 Sep 2018 10:50:10 -0700
Subject: [PATCH 02/16] C++: add isStrict to RelationalInstruction

---
 .../implementation/aliased_ssa/Instruction.qll  | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
index d70f4f8a36e4..d01378e32cae 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
@@ -974,6 +974,7 @@ class RelationalInstruction extends CompareInstruction {
 
   abstract Instruction getGreaterOperand();
   abstract Instruction getLesserOperand();
+  abstract predicate isStrict();
 }
 
 class CompareLTInstruction extends RelationalInstruction {
@@ -988,6 +989,10 @@ class CompareLTInstruction extends RelationalInstruction {
   override Instruction getGreaterOperand() {
     result = getRightOperand()
   }
+
+  override predicate isStrict() {
+    any()
+  }
 }
 
 class CompareGTInstruction extends RelationalInstruction {
@@ -1002,6 +1007,10 @@ class CompareGTInstruction extends RelationalInstruction {
   override Instruction getGreaterOperand() {
     result = getLeftOperand()
   }
+
+  override predicate isStrict() {
+    any()
+  }
 }
 
 class CompareLEInstruction extends RelationalInstruction {
@@ -1016,6 +1025,10 @@ class CompareLEInstruction extends RelationalInstruction {
   override Instruction getGreaterOperand() {
     result = getRightOperand()
   }
+
+  override predicate isStrict() {
+    none()
+  }
 }
 
 class CompareGEInstruction extends RelationalInstruction {
@@ -1030,6 +1043,10 @@ class CompareGEInstruction extends RelationalInstruction {
   override Instruction getGreaterOperand() {
     result = getLeftOperand()
   }
+
+  override predicate isStrict() {
+    none()
+  }
 }
 
 class SwitchInstruction extends Instruction {

From d7e630b3c655117507e2e6ae1894a1ed0891900e Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Fri, 14 Sep 2018 10:46:02 -0700
Subject: [PATCH 03/16] C++: Add IR-based port of Guards library

For ease of reviewing, I've checked in the .expected files from the
AST-based guards library. The next commit accepts output for these tests
and adds tests that use getAST rather than the translation layer.
---
 .../semmle/code/cpp/controlflow/IRGuards.qll  | 472 ++++++++++++++++++
 .../controlflow/guards-ir/ASTGuards.expected  |  32 ++
 .../controlflow/guards-ir/ASTGuards.ql        |   5 +
 .../guards-ir/ASTGuardsCompare.expected       |  88 ++++
 .../controlflow/guards-ir/ASTGuardsCompare.ql |  25 +
 .../guards-ir/ASTGuardsControl.expected       |  90 ++++
 .../controlflow/guards-ir/ASTGuardsControl.ql |  17 +
 .../guards-ir/ASTGuardsEnsure.expected        | 160 ++++++
 .../controlflow/guards-ir/ASTGuardsEnsure.ql  |  23 +
 .../controlflow/guards-ir/test.c              | 149 ++++++
 .../controlflow/guards-ir/test.cpp            |  54 ++
 11 files changed, 1115 insertions(+)
 create mode 100644 cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.ql
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.ql
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.ql
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.ql
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/test.c
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/test.cpp

diff --git a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
new file mode 100644
index 000000000000..d8e7e1c12742
--- /dev/null
+++ b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
@@ -0,0 +1,472 @@
+import cpp
+import semmle.code.cpp.ir.IR
+
+/**
+ * A Boolean condition in the IR that guards one or more basic blocks. This includes
+ * operands of logical operators but not switch statements.
+ */
+class GuardCondition extends Expr {
+  GuardCondition() {
+    exists(IRGuardCondition ir | this.getFullyConverted() = ir.getAST())
+    or
+    // no binary operators in the IR
+    exists(Instruction ir |
+      this.(BinaryLogicalOperation).getAnOperand().getFullyConverted() = ir.getAST()
+    )
+    or
+    // the IR short-circuits if(!x)
+    (
+      not exists (Instruction inst | this.getFullyConverted() = inst.getAST()) and
+      exists(IRGuardCondition ir | this.(NotExpr).getOperand() = ir.getAST())
+    )
+  }
+  /**
+   * Holds if this condition controls `block`, meaning that `block` is only
+   * entered if the value of this condition is `testIsTrue`.
+   *
+   * Illustration:
+   *
+   * ```
+   * [                    (testIsTrue)                        ]
+   * [             this ----------------succ ---- controlled  ]
+   * [               |                    |                   ]
+   * [ (testIsFalse) |                     ------ ...         ]
+   * [             other                                      ]
+   * ```
+   *
+   * The predicate holds if all paths to `controlled` go via the `testIsTrue`
+   * edge of the control-flow graph. In other words, the `testIsTrue` edge
+   * must dominate `controlled`. This means that `controlled` must be
+   * dominated by both `this` and `succ` (the target of the `testIsTrue`
+   * edge). It also means that any other edge into `succ` must be a back-edge
+   * from a node which is dominated by `succ`.
+   *
+   * The short-circuit boolean operations have slightly surprising behavior
+   * here: because the operation itself only dominates one branch (due to
+   * being short-circuited) then it will only control blocks dominated by the
+   * true (for `&&`) or false (for `||`) branch.
+   */
+  abstract cached predicate controls(BasicBlock controlled, boolean testIsTrue);
+  
+  /** Holds if (determined by this guard) `left < right + k` evaluates to `isLessThan` if this expression evaluates to `testIsTrue`. */
+  abstract cached predicate comparesLt(Expr left, Expr right, int k, boolean isLessThan, boolean testIsTrue);
+
+  /** Holds if (determined by this guard) `left < right + k` must be `isLessThan` in `block`.
+        If `isLessThan = false` then this implies `left >= right + k`.  */
+  abstract cached predicate ensuresLt(Expr left, Expr right, int k, BasicBlock block, boolean isLessThan);
+
+  /** Holds if (determined by this guard) `left == right + k` evaluates to `areEqual` if this expression evaluates to `testIsTrue`. */
+  abstract cached predicate comparesEq(Expr left, Expr right, int k, boolean areEqual, boolean testIsTrue);
+
+  /** Holds if (determined by this guard) `left == right + k` must be `areEqual` in `block`.
+      If `areEqual = false` then this implies `left != right + k`.  */
+  abstract cached predicate ensuresEq(Expr left, Expr right, int k, BasicBlock block, boolean areEqual);
+}
+
+class GuardConditionFromBinaryLogicalOperator extends GuardCondition {
+  GuardConditionFromBinaryLogicalOperator() {
+    exists(GuardCondition gc |
+      this.(BinaryLogicalOperation).getAnOperand()= gc
+    )
+  }
+  
+  override predicate controls(BasicBlock controlled, boolean testIsTrue) {
+    exists (BinaryLogicalOperation binop, GuardCondition lhs, GuardCondition rhs
+    | this = binop and
+      lhs = binop.getLeftOperand() and
+      rhs = binop.getRightOperand() and
+      lhs.controls(controlled, testIsTrue) and
+      rhs.controls(controlled, testIsTrue))
+  }
+  
+  override predicate comparesLt(Expr left, Expr right, int k, boolean isLessThan, boolean testIsTrue) {
+    exists(boolean partIsTrue, GuardCondition part |
+      this.(BinaryLogicalOperation).impliesValue(part, partIsTrue, testIsTrue) |
+      part.comparesLt(left, right, k, isLessThan, partIsTrue)
+    )
+  }
+  
+  override predicate ensuresLt(Expr left, Expr right, int k, BasicBlock block, boolean isLessThan) {
+    exists(boolean testIsTrue |
+      comparesLt(left, right, k, isLessThan, testIsTrue) and this.controls(block, testIsTrue)
+    )
+  }
+  
+  override predicate comparesEq(Expr left, Expr right, int k, boolean isLessThan, boolean testIsTrue) {
+    exists(boolean partIsTrue, GuardCondition part |
+      this.(BinaryLogicalOperation).impliesValue(part, partIsTrue, testIsTrue) |
+      part.comparesEq(left, right, k, isLessThan, partIsTrue)
+    )
+  }
+  
+  override predicate ensuresEq(Expr left, Expr right, int k, BasicBlock block, boolean isLessThan) {
+    exists(boolean testIsTrue |
+      comparesEq(left, right, k, isLessThan, testIsTrue) and this.controls(block, testIsTrue)
+    )
+  }
+}
+
+class GuardConditionFromShortCircuitNot extends GuardCondition, NotExpr {
+  GuardConditionFromShortCircuitNot() {
+    not exists (Instruction inst | this.getFullyConverted() = inst.getAST()) and
+    exists(IRGuardCondition ir | getOperand() = ir.getAST())
+  }
+  
+  override predicate controls(BasicBlock controlled, boolean testIsTrue) {
+    getOperand().(GuardCondition).controls(controlled, testIsTrue.booleanNot())
+  }
+  
+  override predicate comparesLt(Expr left, Expr right, int k, boolean areEqual, boolean testIsTrue) {
+    getOperand().(GuardCondition).comparesLt(left, right, k, areEqual, testIsTrue.booleanNot())
+  }
+  
+  override predicate ensuresLt(Expr left, Expr right, int k, BasicBlock block, boolean testIsTrue) {
+    getOperand().(GuardCondition).ensuresLt(left, right, k, block, testIsTrue.booleanNot())
+  }
+  
+  override predicate comparesEq(Expr left, Expr right, int k, boolean areEqual, boolean testIsTrue) {
+    getOperand().(GuardCondition).comparesEq(left, right, k, areEqual, testIsTrue.booleanNot())
+  }
+  
+  override predicate ensuresEq(Expr left, Expr right, int k, BasicBlock block, boolean testIsTrue) {
+    getOperand().(GuardCondition).ensuresEq(left, right, k, block, testIsTrue.booleanNot())
+  }
+}
+
+class GuardConditionFromIR extends GuardCondition {
+  IRGuardCondition ir;
+  
+  GuardConditionFromIR() {
+    this.getFullyConverted() = ir.getAST()
+  }
+    override predicate controls(BasicBlock controlled, boolean testIsTrue) {
+        /* This condition must determine the flow of control; that is, this
+         * node must be a top-level condition. */
+        this.controlsBlock(controlled, testIsTrue)
+    }
+
+    /** Holds if (determined by this guard) `left < right + k` evaluates to `isLessThan` if this expression evaluates to `testIsTrue`. */
+    override predicate comparesLt(Expr left, Expr right, int k, boolean isLessThan, boolean testIsTrue) {
+      exists(Instruction li, Instruction ri |
+        remove_conversions(li.getAST()) = left and
+        remove_conversions(ri.getAST()) = right and
+        ir.comparesLt(li, ri, k, isLessThan, testIsTrue)
+      )
+    }
+
+    /** Holds if (determined by this guard) `left < right + k` must be `isLessThan` in `block`.
+        If `isLessThan = false` then this implies `left >= right + k`.  */
+    override predicate ensuresLt(Expr left, Expr right, int k, BasicBlock block, boolean isLessThan) {
+      exists(Instruction li, Instruction ri, boolean testIsTrue |
+        remove_conversions(li.getAST()) = left and
+        remove_conversions(ri.getAST()) = right and
+        ir.comparesLt(li, ri, k, isLessThan, testIsTrue) and
+        this.controls(block, testIsTrue)
+      )
+    }
+
+    /** Holds if (determined by this guard) `left == right + k` evaluates to `areEqual` if this expression evaluates to `testIsTrue`. */
+    override predicate comparesEq(Expr left, Expr right, int k, boolean areEqual, boolean testIsTrue) {
+      exists(Instruction li, Instruction ri |
+        remove_conversions(li.getAST()) = left and
+        remove_conversions(ri.getAST()) = right and
+        ir.comparesEq(li, ri, k, areEqual, testIsTrue)
+      )
+    }
+
+    /** Holds if (determined by this guard) `left == right + k` must be `areEqual` in `block`.
+        If `areEqual = false` then this implies `left != right + k`.  */
+    override predicate ensuresEq(Expr left, Expr right, int k, BasicBlock block, boolean areEqual) {
+        exists(Instruction li, Instruction ri, boolean testIsTrue |
+        remove_conversions(li.getAST()) = left and
+        remove_conversions(ri.getAST()) = right and
+        ir.comparesEq(li, ri, k, areEqual, testIsTrue)
+        and this.controls(block, testIsTrue)
+      )
+    }
+
+    /**
+     * Holds if this condition controls `block`, meaning that `block` is only
+     * entered if the value of this condition is `testIsTrue`. This helper
+     * predicate does not necessarily hold for binary logical operations like
+     * `&&` and `||`. See the detailed explanation on predicate `controls`.
+     */
+    private predicate controlsBlock(BasicBlock controlled, boolean testIsTrue) {
+      exists(IRBlock irb |
+        forex(IRGuardCondition inst | inst = ir | inst.controls(irb, testIsTrue)) and
+        irb.getAnInstruction().getAST().(ControlFlowNode).getBasicBlock() = controlled
+      )
+    }
+}
+
+/**
+ * A Boolean condition in the IR that guards one or more basic blocks. This includes
+ * operands of logical operators but not switch statements. Note that `&&` and `||`
+ * don't have an explicit representation in the IR, and therefore will not appear as
+ * IRGuardConditions.
+ */
+class IRGuardCondition extends Instruction {
+
+    IRGuardCondition() {
+        is_condition(this)
+    }
+
+    /**
+     * Holds if this condition controls `block`, meaning that `block` is only
+     * entered if the value of this condition is `testIsTrue`.
+     *
+     * Illustration:
+     *
+     * ```
+     * [                    (testIsTrue)                        ]
+     * [             this ----------------succ ---- controlled  ]
+     * [               |                    |                   ]
+     * [ (testIsFalse) |                     ------ ...         ]
+     * [             other                                      ]
+     * ```
+     *
+     * The predicate holds if all paths to `controlled` go via the `testIsTrue`
+     * edge of the control-flow graph. In other words, the `testIsTrue` edge
+     * must dominate `controlled`. This means that `controlled` must be
+     * dominated by both `this` and `succ` (the target of the `testIsTrue`
+     * edge). It also means that any other edge into `succ` must be a back-edge
+     * from a node which is dominated by `succ`.
+     *
+     * The short-circuit boolean operations have slightly surprising behavior
+     * here: because the operation itself only dominates one branch (due to
+     * being short-circuited) then it will only control blocks dominated by the
+     * true (for `&&`) or false (for `||`) branch.
+     */
+    cached predicate controls(IRBlock controlled, boolean testIsTrue) {
+        /* This condition must determine the flow of control; that is, this
+         * node must be a top-level condition. */
+        this.controlsBlock(controlled, testIsTrue)
+        or
+        exists (IRGuardCondition ne
+        | this =  ne.(LogicalNotInstruction).getOperand() and
+          ne.controls(controlled, testIsTrue.booleanNot())) 
+    }
+
+    /** Holds if (determined by this guard) `left < right + k` evaluates to `isLessThan` if this expression evaluates to `testIsTrue`. */
+    cached predicate comparesLt(Instruction left, Instruction right, int k, boolean isLessThan, boolean testIsTrue) {
+        compares_lt(this, left, right, k, isLessThan, testIsTrue)
+    }
+
+    /** Holds if (determined by this guard) `left < right + k` must be `isLessThan` in `block`.
+        If `isLessThan = false` then this implies `left >= right + k`.  */
+    cached predicate ensuresLt(Instruction left, Instruction right, int k, IRBlock block, boolean isLessThan) {
+        exists(boolean testIsTrue |
+            compares_lt(this, left, right, k, isLessThan, testIsTrue) and this.controls(block, testIsTrue)
+        )
+    }
+
+    /** Holds if (determined by this guard) `left == right + k` evaluates to `areEqual` if this expression evaluates to `testIsTrue`. */
+    cached predicate comparesEq(Instruction left, Instruction right, int k, boolean areEqual, boolean testIsTrue) {
+        compares_eq(this, left, right, k, areEqual, testIsTrue)
+    }
+
+    /** Holds if (determined by this guard) `left == right + k` must be `areEqual` in `block`.
+        If `areEqual = false` then this implies `left != right + k`.  */
+    cached predicate ensuresEq(Instruction left, Instruction right, int k, IRBlock block, boolean areEqual) {
+        exists(boolean testIsTrue |
+            compares_eq(this, left, right, k, areEqual, testIsTrue) and this.controls(block, testIsTrue)
+        )
+    }
+
+    /**
+     * Holds if this condition controls `block`, meaning that `block` is only
+     * entered if the value of this condition is `testIsTrue`. This helper
+     * predicate does not necessarily hold for binary logical operations like
+     * `&&` and `||`. See the detailed explanation on predicate `controls`.
+     */
+    private predicate controlsBlock(IRBlock controlled, boolean testIsTrue) {
+        exists(IRBlock thisblock
+        | thisblock.getAnInstruction() = this
+        | exists(IRBlock succ, ConditionalBranchInstruction branch
+          | testIsTrue = true and succ.getFirstInstruction() = branch.getTrueSuccessor()
+            or
+            testIsTrue = false and succ.getFirstInstruction() = branch.getFalseSuccessor()
+          | branch.getCondition() = this and
+            succ.dominates(controlled) and
+            forall(IRBlock pred
+            | pred.getASuccessor() = succ
+            | pred = thisblock or succ.dominates(pred)))) // removed reachability condition - is that OK?
+    }
+}
+
+private predicate is_condition(Instruction guard) {
+  exists(ConditionalBranchInstruction branch|
+    branch.getCondition() = guard
+  )
+  or
+  exists(LogicalNotInstruction cond | is_condition(cond) and cond.getOperand() = guard)
+}
+
+/**
+ * Holds if `left == right + k` is `areEqual` given that test is `testIsTrue`.
+ *
+ * Beware making mistaken logical implications here relating `areEqual` and `testIsTrue`.
+ */
+private predicate compares_eq(Instruction test, Instruction left, Instruction right, int k, boolean areEqual, boolean testIsTrue) {
+    /* The simple case where the test *is* the comparison so areEqual = testIsTrue xor eq. */
+    exists(boolean eq | simple_comparison_eq(test, left, right, k, eq) |
+        areEqual = true and testIsTrue = eq or areEqual = false and testIsTrue = eq.booleanNot()
+    )
+    // I think this is handled by forwarding in controlsBlock.
+    /* or
+    logical_comparison_eq(test, left, right, k, areEqual, testIsTrue) */
+    or
+    /* a == b + k => b == a - k */
+    exists(int mk | k = -mk | compares_eq(test, right, left, mk, areEqual, testIsTrue))
+    or
+    complex_eq(test, left, right, k, areEqual, testIsTrue)
+    or
+    /* (x is true => (left == right + k)) => (!x is false => (left == right + k)) */
+    exists(boolean isFalse | testIsTrue = isFalse.booleanNot() |
+        compares_eq(test.(LogicalNotInstruction).getOperand(), left, right, k, areEqual, isFalse)
+    )
+}
+
+/** Rearrange various simple comparisons into `left == right + k` form. */
+private predicate simple_comparison_eq(CompareInstruction cmp, Instruction left, Instruction right, int k, boolean areEqual) {
+    left = cmp.getLeftOperand() and cmp instanceof CompareEQInstruction and right = cmp.getRightOperand() and k = 0 and areEqual = true
+    or
+    left = cmp.getLeftOperand() and cmp instanceof CompareNEInstruction and right = cmp.getRightOperand() and k = 0 and areEqual = false
+}
+
+private predicate complex_eq(CompareInstruction cmp, Instruction left, Instruction right, int k, boolean areEqual, boolean testIsTrue) {
+    sub_eq(cmp, left, right, k, areEqual, testIsTrue)
+    or
+    add_eq(cmp, left, right, k, areEqual, testIsTrue)
+}
+
+
+/* Simplification of inequality expressions
+ * Simplify conditions in the source to the canonical form l < r + k.
+ */
+
+/** Holds if `left < right + k` evaluates to `isLt` given that test is `testIsTrue`. */
+private predicate compares_lt(Instruction test, Instruction left, Instruction right, int k, boolean isLt, boolean testIsTrue) {
+    /* In the simple case, the test is the comparison, so isLt = testIsTrue */
+    simple_comparison_lt(test, left, right, k) and isLt = true and testIsTrue = true
+    or
+    simple_comparison_lt(test, left, right, k) and isLt = false and testIsTrue = false
+    or
+    complex_lt(test, left, right, k, isLt, testIsTrue)
+    or
+    /* (not (left < right + k)) => (left >= right + k) */
+    exists(boolean isGe | isLt = isGe.booleanNot() |
+        compares_ge(test, left, right, k, isGe, testIsTrue)
+    )
+    or
+    /* (x is true => (left < right + k)) => (!x is false => (left < right + k)) */
+    exists(boolean isFalse | testIsTrue = isFalse.booleanNot() |
+        compares_lt(test.(LogicalNotInstruction).getOperand(), left, right, k, isLt, isFalse)
+    )
+}
+
+/** `(a < b + k) => (b > a - k) => (b >= a + (1-k))` */
+private predicate compares_ge(Instruction test, Instruction left, Instruction right, int k, boolean isGe, boolean testIsTrue) {
+    exists(int onemk | k = 1 - onemk | compares_lt(test, right, left, onemk, isGe, testIsTrue))
+}
+
+/** Rearrange various simple comparisons into `left < right + k` form. */
+private predicate simple_comparison_lt(CompareInstruction cmp, Instruction left, Instruction right, int k) {
+    left = cmp.getLeftOperand() and cmp instanceof CompareLTInstruction and right = cmp.getRightOperand() and k = 0
+    or
+    left = cmp.getLeftOperand() and cmp instanceof CompareLEInstruction and right = cmp.getRightOperand() and k = 1
+    or
+    right = cmp.getLeftOperand() and cmp instanceof CompareGTInstruction and left = cmp.getRightOperand() and k = 0
+    or
+    right = cmp.getLeftOperand() and cmp instanceof CompareGEInstruction and left = cmp.getRightOperand() and k = 1
+}
+
+private predicate complex_lt(CompareInstruction cmp, Instruction left, Instruction right, int k, boolean isLt, boolean testIsTrue) {
+    sub_lt(cmp, left, right, k, isLt, testIsTrue)
+    or
+    add_lt(cmp, left, right, k, isLt, testIsTrue)
+}
+
+
+/* left - x < right + c => left < right + (c+x)
+   left < (right - x) + c => left < right + (c-x) */
+private predicate sub_lt(CompareInstruction cmp, Instruction left, Instruction right, int k, boolean isLt, boolean testIsTrue) {
+    exists(SubInstruction lhs, int c, int x | compares_lt(cmp, lhs, right, c, isLt, testIsTrue) and
+                                left = lhs.getLeftOperand() and x = int_value(lhs.getRightOperand())
+                                and k = c + x
+    )
+    or
+    exists(SubInstruction rhs, int c, int x | compares_lt(cmp, left, rhs, c, isLt, testIsTrue) and
+                                right = rhs.getLeftOperand() and x = int_value(rhs.getRightOperand())
+                                and k = c - x
+    )
+}
+
+/* left + x < right + c => left < right + (c-x)
+   left < (right + x) + c => left < right + (c+x) */
+private predicate add_lt(CompareInstruction cmp, Instruction left, Instruction right, int k, boolean isLt, boolean testIsTrue) {
+    exists(AddInstruction lhs, int c, int x | compares_lt(cmp, lhs, right, c, isLt, testIsTrue) and
+                                (left = lhs.getLeftOperand() and x = int_value(lhs.getRightOperand())
+                                 or
+                                 left = lhs.getRightOperand() and x = int_value(lhs.getLeftOperand())
+                                )
+                                and k = c - x
+    )
+    or
+    exists(AddInstruction rhs, int c, int x | compares_lt(cmp, left, rhs, c, isLt, testIsTrue) and
+                                (right = rhs.getLeftOperand() and x = int_value(rhs.getRightOperand())
+                                 or
+                                 right = rhs.getRightOperand() and x = int_value(rhs.getLeftOperand())
+                                )
+                                and k = c + x
+    )
+}
+
+
+/* left - x == right + c => left == right + (c+x)
+   left == (right - x) + c => left == right + (c-x) */
+private predicate sub_eq(CompareInstruction cmp, Instruction left, Instruction right, int k, boolean areEqual, boolean testIsTrue) {
+    exists(SubInstruction lhs, int c, int x | compares_eq(cmp, lhs, right, c, areEqual, testIsTrue) and
+                                left = lhs.getLeftOperand() and x = int_value(lhs.getRightOperand())
+                                and k = c + x
+    )
+    or
+    exists(SubInstruction rhs, int c, int x | compares_eq(cmp, left, rhs, c, areEqual, testIsTrue) and
+                                right = rhs.getLeftOperand() and x = int_value(rhs.getRightOperand())
+                                and k = c - x
+    )
+}
+
+
+/* left + x == right + c => left == right + (c-x)
+   left == (right + x) + c => left == right + (c+x) */
+private predicate add_eq(CompareInstruction cmp, Instruction left, Instruction right, int k, boolean areEqual, boolean testIsTrue) {
+    exists(AddInstruction lhs, int c, int x | compares_eq(cmp, lhs, right, c, areEqual, testIsTrue) and
+                                (left = lhs.getLeftOperand() and x = int_value(lhs.getRightOperand())
+                                 or
+                                 left = lhs.getRightOperand() and x = int_value(lhs.getLeftOperand())
+                                )
+                                and k = c - x
+    )
+    or
+    exists(AddInstruction rhs, int c, int x | compares_eq(cmp, left, rhs, c, areEqual, testIsTrue) and
+                                (right = rhs.getLeftOperand() and x = int_value(rhs.getRightOperand())
+                                 or
+                                 right = rhs.getRightOperand() and x = int_value(rhs.getLeftOperand())
+                                )
+                                and k = c + x
+    )
+}
+
+/** The int value of integer constant expression. */
+private int int_value(Instruction i) {
+  result = i.(IntegerConstantInstruction).getValue().toInt()
+}
+
+
+private Expr remove_conversions(Expr e) {
+  if e instanceof Conversion
+  then result = e.(Conversion).getExpr*() and
+       not result instanceof Conversion
+  else result = e
+}
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
new file mode 100644
index 000000000000..b73e7064339e
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
@@ -0,0 +1,32 @@
+| test.c:7:9:7:13 | ... > ... |
+| test.c:17:8:17:12 | ... < ... |
+| test.c:17:8:17:21 | ... && ... |
+| test.c:17:17:17:21 | ... > ... |
+| test.c:26:11:26:15 | ... > ... |
+| test.c:34:16:34:21 | ... < ... |
+| test.c:42:16:42:21 | ... < ... |
+| test.c:44:12:44:16 | ... > ... |
+| test.c:45:16:45:20 | ... > ... |
+| test.c:58:9:58:14 | ... == ... |
+| test.c:58:9:58:23 | ... \|\| ... |
+| test.c:58:19:58:23 | ... < ... |
+| test.c:75:9:75:14 | ... == ... |
+| test.c:85:8:85:13 | ... == ... |
+| test.c:85:8:85:23 | ... && ... |
+| test.c:85:18:85:23 | ... != ... |
+| test.c:94:11:94:16 | ... != ... |
+| test.c:102:16:102:21 | ... < ... |
+| test.c:109:9:109:14 | ... == ... |
+| test.c:109:9:109:23 | ... \|\| ... |
+| test.c:109:19:109:23 | ... < ... |
+| test.c:126:7:126:7 | 1 |
+| test.c:126:7:126:28 | ... && ... |
+| test.c:126:12:126:26 | call to test3_condition |
+| test.c:131:7:131:7 | b |
+| test.c:137:7:137:7 | 0 |
+| test.c:138:9:138:9 | i |
+| test.c:146:7:146:8 | ! ... |
+| test.c:146:8:146:8 | x |
+| test.cpp:18:8:18:10 | call to get |
+| test.cpp:31:7:31:13 | ... == ... |
+| test.cpp:42:13:42:20 | call to getABool |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.ql
new file mode 100644
index 000000000000..3c8e19bee412
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.ql
@@ -0,0 +1,5 @@
+import cpp
+import semmle.code.cpp.controlflow.IRGuards
+
+from GuardCondition guard
+select guard
\ No newline at end of file
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
new file mode 100644
index 000000000000..58068f3991df
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
@@ -0,0 +1,88 @@
+| 7 | 0 < x+0 when ... > ... is true |
+| 7 | 0 >= x+0 when ... > ... is false |
+| 7 | x < 0+1 when ... > ... is false |
+| 7 | x >= 0+1 when ... > ... is true |
+| 17 | 0 < x+1 when ... < ... is false |
+| 17 | 0 >= x+1 when ... && ... is true |
+| 17 | 0 >= x+1 when ... < ... is true |
+| 17 | 1 < y+0 when ... && ... is true |
+| 17 | 1 < y+0 when ... > ... is true |
+| 17 | 1 >= y+0 when ... > ... is false |
+| 17 | x < 0+0 when ... && ... is true |
+| 17 | x < 0+0 when ... < ... is true |
+| 17 | x >= 0+0 when ... < ... is false |
+| 17 | y < 1+1 when ... > ... is false |
+| 17 | y >= 1+1 when ... && ... is true |
+| 17 | y >= 1+1 when ... > ... is true |
+| 26 | 0 < x+0 when ... > ... is true |
+| 26 | 0 >= x+0 when ... > ... is false |
+| 26 | x < 0+1 when ... > ... is false |
+| 26 | x >= 0+1 when ... > ... is true |
+| 31 | - ... != x+0 when ... == ... is false |
+| 31 | - ... == x+0 when ... == ... is true |
+| 31 | x != - ...+0 when ... == ... is false |
+| 31 | x == - ...+0 when ... == ... is true |
+| 34 | 10 < j+1 when ... < ... is false |
+| 34 | 10 >= j+1 when ... < ... is true |
+| 34 | j < 10+0 when ... < ... is true |
+| 34 | j >= 10+0 when ... < ... is false |
+| 42 | 10 < j+1 when ... < ... is false |
+| 42 | 10 >= j+1 when ... < ... is true |
+| 42 | j < 10+0 when ... < ... is true |
+| 42 | j >= 10+0 when ... < ... is false |
+| 44 | 0 < z+0 when ... > ... is true |
+| 44 | 0 >= z+0 when ... > ... is false |
+| 44 | z < 0+1 when ... > ... is false |
+| 44 | z >= 0+1 when ... > ... is true |
+| 45 | 0 < y+0 when ... > ... is true |
+| 45 | 0 >= y+0 when ... > ... is false |
+| 45 | y < 0+1 when ... > ... is false |
+| 45 | y >= 0+1 when ... > ... is true |
+| 58 | 0 != x+0 when ... == ... is false |
+| 58 | 0 != x+0 when ... \|\| ... is false |
+| 58 | 0 < y+1 when ... < ... is false |
+| 58 | 0 < y+1 when ... \|\| ... is false |
+| 58 | 0 == x+0 when ... == ... is true |
+| 58 | 0 >= y+1 when ... < ... is true |
+| 58 | x != 0+0 when ... == ... is false |
+| 58 | x != 0+0 when ... \|\| ... is false |
+| 58 | x == 0+0 when ... == ... is true |
+| 58 | y < 0+0 when ... < ... is true |
+| 58 | y >= 0+0 when ... < ... is false |
+| 58 | y >= 0+0 when ... \|\| ... is false |
+| 75 | 0 != x+0 when ... == ... is false |
+| 75 | 0 == x+0 when ... == ... is true |
+| 75 | x != 0+0 when ... == ... is false |
+| 75 | x == 0+0 when ... == ... is true |
+| 85 | 0 != x+0 when ... == ... is false |
+| 85 | 0 != y+0 when ... != ... is true |
+| 85 | 0 != y+0 when ... && ... is true |
+| 85 | 0 == x+0 when ... && ... is true |
+| 85 | 0 == x+0 when ... == ... is true |
+| 85 | 0 == y+0 when ... != ... is false |
+| 85 | x != 0+0 when ... == ... is false |
+| 85 | x == 0+0 when ... && ... is true |
+| 85 | x == 0+0 when ... == ... is true |
+| 85 | y != 0+0 when ... != ... is true |
+| 85 | y != 0+0 when ... && ... is true |
+| 85 | y == 0+0 when ... != ... is false |
+| 94 | 0 != x+0 when ... != ... is true |
+| 94 | 0 == x+0 when ... != ... is false |
+| 94 | x != 0+0 when ... != ... is true |
+| 94 | x == 0+0 when ... != ... is false |
+| 102 | 10 < j+1 when ... < ... is false |
+| 102 | 10 >= j+1 when ... < ... is true |
+| 102 | j < 10+0 when ... < ... is true |
+| 102 | j >= 10+0 when ... < ... is false |
+| 109 | 0 != x+0 when ... == ... is false |
+| 109 | 0 != x+0 when ... \|\| ... is false |
+| 109 | 0 < y+1 when ... < ... is false |
+| 109 | 0 < y+1 when ... \|\| ... is false |
+| 109 | 0 == x+0 when ... == ... is true |
+| 109 | 0 >= y+1 when ... < ... is true |
+| 109 | x != 0+0 when ... == ... is false |
+| 109 | x != 0+0 when ... \|\| ... is false |
+| 109 | x == 0+0 when ... == ... is true |
+| 109 | y < 0+0 when ... < ... is true |
+| 109 | y >= 0+0 when ... < ... is false |
+| 109 | y >= 0+0 when ... \|\| ... is false |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.ql
new file mode 100644
index 000000000000..e51e5df741a6
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.ql
@@ -0,0 +1,25 @@
+/**
+ * @name Guards comparison test
+ * @description List comparison parts.
+ * @kind test
+ */
+
+import cpp
+import semmle.code.cpp.controlflow.IRGuards
+
+
+from GuardCondition guard, Expr left, Expr right, int k, string which, string op, string msg
+where 
+(exists(boolean sense | sense = true and which = "true" or sense = false and which = "false" |
+    guard.comparesLt(left, right, k, true, sense) and op = " < "
+    or
+    guard.comparesLt(left, right, k, false, sense) and op = " >= "
+    or
+    guard.comparesEq(left, right, k, true, sense) and op = " == "
+    or 
+    guard.comparesEq(left, right, k, false, sense)  and op = " != "
+ )
+)
+and msg = left + op + right + "+" + k + " when " + guard + " is " + which
+
+select guard.getLocation().getStartLine(), msg
\ No newline at end of file
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
new file mode 100644
index 000000000000..a9f1c7aa6c41
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
@@ -0,0 +1,90 @@
+| test.c:7:9:7:13 | ... > ... | false | 10 | 11 |
+| test.c:7:9:7:13 | ... > ... | true | 7 | 9 |
+| test.c:17:8:17:12 | ... < ... | true | 17 | 17 |
+| test.c:17:8:17:12 | ... < ... | true | 18 | 18 |
+| test.c:17:8:17:21 | ... && ... | true | 18 | 18 |
+| test.c:17:17:17:21 | ... > ... | true | 18 | 18 |
+| test.c:26:11:26:15 | ... > ... | false | 2 | 2 |
+| test.c:26:11:26:15 | ... > ... | false | 31 | 34 |
+| test.c:26:11:26:15 | ... > ... | false | 34 | 34 |
+| test.c:26:11:26:15 | ... > ... | false | 39 | 42 |
+| test.c:26:11:26:15 | ... > ... | false | 42 | 42 |
+| test.c:26:11:26:15 | ... > ... | false | 42 | 44 |
+| test.c:26:11:26:15 | ... > ... | false | 45 | 45 |
+| test.c:26:11:26:15 | ... > ... | false | 45 | 47 |
+| test.c:26:11:26:15 | ... > ... | false | 48 | 55 |
+| test.c:26:11:26:15 | ... > ... | false | 51 | 53 |
+| test.c:26:11:26:15 | ... > ... | false | 56 | 58 |
+| test.c:26:11:26:15 | ... > ... | false | 58 | 58 |
+| test.c:26:11:26:15 | ... > ... | false | 58 | 66 |
+| test.c:26:11:26:15 | ... > ... | false | 62 | 62 |
+| test.c:26:11:26:15 | ... > ... | true | 26 | 28 |
+| test.c:34:16:34:21 | ... < ... | false | 2 | 2 |
+| test.c:34:16:34:21 | ... < ... | false | 39 | 42 |
+| test.c:34:16:34:21 | ... < ... | false | 42 | 42 |
+| test.c:34:16:34:21 | ... < ... | false | 42 | 44 |
+| test.c:34:16:34:21 | ... < ... | false | 45 | 45 |
+| test.c:34:16:34:21 | ... < ... | false | 45 | 47 |
+| test.c:34:16:34:21 | ... < ... | false | 48 | 55 |
+| test.c:34:16:34:21 | ... < ... | false | 51 | 53 |
+| test.c:34:16:34:21 | ... < ... | false | 56 | 58 |
+| test.c:34:16:34:21 | ... < ... | false | 58 | 58 |
+| test.c:34:16:34:21 | ... < ... | false | 58 | 66 |
+| test.c:34:16:34:21 | ... < ... | false | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | true | 34 | 34 |
+| test.c:42:16:42:21 | ... < ... | true | 42 | 42 |
+| test.c:42:16:42:21 | ... < ... | true | 42 | 44 |
+| test.c:42:16:42:21 | ... < ... | true | 45 | 45 |
+| test.c:42:16:42:21 | ... < ... | true | 45 | 47 |
+| test.c:42:16:42:21 | ... < ... | true | 48 | 55 |
+| test.c:42:16:42:21 | ... < ... | true | 51 | 53 |
+| test.c:44:12:44:16 | ... > ... | false | 51 | 53 |
+| test.c:44:12:44:16 | ... > ... | true | 45 | 45 |
+| test.c:44:12:44:16 | ... > ... | true | 45 | 47 |
+| test.c:44:12:44:16 | ... > ... | true | 48 | 55 |
+| test.c:45:16:45:20 | ... > ... | false | 48 | 55 |
+| test.c:45:16:45:20 | ... > ... | true | 45 | 47 |
+| test.c:58:9:58:14 | ... == ... | false | 58 | 58 |
+| test.c:58:9:58:14 | ... == ... | false | 62 | 62 |
+| test.c:58:9:58:23 | ... \|\| ... | false | 62 | 62 |
+| test.c:58:19:58:23 | ... < ... | false | 62 | 62 |
+| test.c:75:9:75:14 | ... == ... | false | 78 | 79 |
+| test.c:75:9:75:14 | ... == ... | true | 75 | 77 |
+| test.c:85:8:85:13 | ... == ... | true | 85 | 85 |
+| test.c:85:8:85:13 | ... == ... | true | 86 | 86 |
+| test.c:85:8:85:23 | ... && ... | true | 86 | 86 |
+| test.c:85:18:85:23 | ... != ... | true | 86 | 86 |
+| test.c:94:11:94:16 | ... != ... | false | 70 | 70 |
+| test.c:94:11:94:16 | ... != ... | false | 99 | 102 |
+| test.c:94:11:94:16 | ... != ... | false | 102 | 102 |
+| test.c:94:11:94:16 | ... != ... | false | 107 | 109 |
+| test.c:94:11:94:16 | ... != ... | false | 109 | 109 |
+| test.c:94:11:94:16 | ... != ... | false | 109 | 117 |
+| test.c:94:11:94:16 | ... != ... | false | 113 | 113 |
+| test.c:94:11:94:16 | ... != ... | true | 94 | 96 |
+| test.c:102:16:102:21 | ... < ... | false | 70 | 70 |
+| test.c:102:16:102:21 | ... < ... | false | 107 | 109 |
+| test.c:102:16:102:21 | ... < ... | false | 109 | 109 |
+| test.c:102:16:102:21 | ... < ... | false | 109 | 117 |
+| test.c:102:16:102:21 | ... < ... | false | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | true | 102 | 102 |
+| test.c:109:9:109:14 | ... == ... | false | 109 | 109 |
+| test.c:109:9:109:14 | ... == ... | false | 113 | 113 |
+| test.c:109:9:109:23 | ... \|\| ... | false | 113 | 113 |
+| test.c:109:19:109:23 | ... < ... | false | 113 | 113 |
+| test.c:126:7:126:7 | 1 | true | 126 | 126 |
+| test.c:126:7:126:7 | 1 | true | 126 | 128 |
+| test.c:126:7:126:7 | 1 | true | 131 | 131 |
+| test.c:126:7:126:7 | 1 | true | 131 | 132 |
+| test.c:126:7:126:7 | 1 | true | 134 | 123 |
+| test.c:126:7:126:28 | ... && ... | true | 126 | 128 |
+| test.c:126:12:126:26 | call to test3_condition | true | 126 | 128 |
+| test.c:131:7:131:7 | b | true | 131 | 132 |
+| test.c:137:7:137:7 | 0 | false | 142 | 136 |
+| test.c:138:9:138:9 | i | true | 138 | 139 |
+| test.c:146:7:146:8 | ! ... | true | 146 | 147 |
+| test.c:146:8:146:8 | x | false | 146 | 147 |
+| test.cpp:18:8:18:10 | call to get | false | 20 | 16 |
+| test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | true | 31 | 32 |
+| test.cpp:42:13:42:20 | call to getABool | true | 43 | 45 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.ql
new file mode 100644
index 000000000000..63456cc1f572
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.ql
@@ -0,0 +1,17 @@
+/**
+ * @name Guards control test
+ * @description List which guards control which blocks
+ * @kind test
+ */
+
+import cpp
+import semmle.code.cpp.controlflow.IRGuards
+
+
+from GuardCondition guard, boolean sense, int start, int end
+where 
+exists(BasicBlock block |
+       guard.controls(block, sense) and
+       block.hasLocationInfo(_, start, _, end, _)
+)
+select guard, sense, start, end
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
new file mode 100644
index 000000000000..99a1097618d8
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
@@ -0,0 +1,160 @@
+| test.c:7:9:7:13 | ... > ... | test.c:7:9:7:9 | x | < | test.c:7:13:7:13 | 0 | 1 | 10 | 11 |
+| test.c:7:9:7:13 | ... > ... | test.c:7:9:7:9 | x | >= | test.c:7:13:7:13 | 0 | 1 | 7 | 9 |
+| test.c:7:9:7:13 | ... > ... | test.c:7:13:7:13 | 0 | < | test.c:7:9:7:9 | x | 0 | 7 | 9 |
+| test.c:7:9:7:13 | ... > ... | test.c:7:13:7:13 | 0 | >= | test.c:7:9:7:9 | x | 0 | 10 | 11 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 17 | 17 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 18 | 18 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 17 | 17 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 18 | 18 |
+| test.c:17:8:17:21 | ... && ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 18 | 18 |
+| test.c:17:8:17:21 | ... && ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 18 | 18 |
+| test.c:17:8:17:21 | ... && ... | test.c:17:17:17:17 | y | >= | test.c:17:21:17:21 | 1 | 1 | 18 | 18 |
+| test.c:17:8:17:21 | ... && ... | test.c:17:21:17:21 | 1 | < | test.c:17:17:17:17 | y | 0 | 18 | 18 |
+| test.c:17:17:17:21 | ... > ... | test.c:17:17:17:17 | y | >= | test.c:17:21:17:21 | 1 | 1 | 18 | 18 |
+| test.c:17:17:17:21 | ... > ... | test.c:17:21:17:21 | 1 | < | test.c:17:17:17:17 | y | 0 | 18 | 18 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 2 | 2 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 31 | 34 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 34 | 34 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 39 | 42 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 42 | 42 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 42 | 44 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 45 | 45 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 45 | 47 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 48 | 55 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 51 | 53 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 56 | 58 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 58 | 58 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 58 | 66 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 62 | 62 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | >= | test.c:26:15:26:15 | 0 | 1 | 26 | 28 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | < | test.c:26:11:26:11 | x | 0 | 26 | 28 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 2 | 2 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 31 | 34 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 34 | 34 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 39 | 42 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 42 | 42 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 42 | 44 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 45 | 45 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 45 | 47 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 48 | 55 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 51 | 53 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 56 | 58 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 58 | 58 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 58 | 66 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | < | test.c:34:20:34:21 | 10 | 0 | 34 | 34 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 2 | 2 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 39 | 42 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 42 | 42 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 42 | 44 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 45 | 45 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 45 | 47 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 48 | 55 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 51 | 53 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 56 | 58 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 58 | 58 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 58 | 66 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 2 | 2 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 39 | 42 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 42 | 42 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 42 | 44 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 45 | 45 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 45 | 47 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 48 | 55 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 51 | 53 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 56 | 58 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 58 | 58 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 58 | 66 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | >= | test.c:34:16:34:16 | j | 1 | 34 | 34 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 42 | 42 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 42 | 44 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 45 | 45 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 45 | 47 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 48 | 55 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 51 | 53 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 42 | 42 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 42 | 44 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 45 | 45 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 45 | 47 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 48 | 55 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 51 | 53 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | < | test.c:44:16:44:16 | 0 | 1 | 51 | 53 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 45 | 45 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 45 | 47 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 48 | 55 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 45 | 45 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 45 | 47 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 48 | 55 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | >= | test.c:44:12:44:12 | z | 0 | 51 | 53 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:16:45:16 | y | < | test.c:45:20:45:20 | 0 | 1 | 48 | 55 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:16:45:16 | y | >= | test.c:45:20:45:20 | 0 | 1 | 45 | 47 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:20:45:20 | 0 | < | test.c:45:16:45:16 | y | 0 | 45 | 47 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:20:45:20 | 0 | >= | test.c:45:16:45:16 | y | 0 | 48 | 55 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 58 | 58 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 62 | 62 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 58 | 58 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 62 | 62 |
+| test.c:58:9:58:23 | ... \|\| ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 62 | 62 |
+| test.c:58:9:58:23 | ... \|\| ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 62 | 62 |
+| test.c:58:9:58:23 | ... \|\| ... | test.c:58:19:58:19 | y | >= | test.c:58:23:58:23 | 0 | 0 | 62 | 62 |
+| test.c:58:9:58:23 | ... \|\| ... | test.c:58:23:58:23 | 0 | < | test.c:58:19:58:19 | y | 1 | 62 | 62 |
+| test.c:58:19:58:23 | ... < ... | test.c:58:19:58:19 | y | >= | test.c:58:23:58:23 | 0 | 0 | 62 | 62 |
+| test.c:58:19:58:23 | ... < ... | test.c:58:23:58:23 | 0 | < | test.c:58:19:58:19 | y | 1 | 62 | 62 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:9:75:9 | x | != | test.c:75:14:75:14 | 0 | 0 | 78 | 79 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:9:75:9 | x | == | test.c:75:14:75:14 | 0 | 0 | 75 | 77 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:14:75:14 | 0 | != | test.c:75:9:75:9 | x | 0 | 78 | 79 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:14:75:14 | 0 | == | test.c:75:9:75:9 | x | 0 | 75 | 77 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 85 | 85 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 86 | 86 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 85 | 85 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 86 | 86 |
+| test.c:85:8:85:23 | ... && ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 86 | 86 |
+| test.c:85:8:85:23 | ... && ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 86 | 86 |
+| test.c:85:8:85:23 | ... && ... | test.c:85:18:85:18 | y | != | test.c:85:23:85:23 | 0 | 0 | 86 | 86 |
+| test.c:85:8:85:23 | ... && ... | test.c:85:23:85:23 | 0 | != | test.c:85:18:85:18 | y | 0 | 86 | 86 |
+| test.c:85:18:85:23 | ... != ... | test.c:85:18:85:18 | y | != | test.c:85:23:85:23 | 0 | 0 | 86 | 86 |
+| test.c:85:18:85:23 | ... != ... | test.c:85:23:85:23 | 0 | != | test.c:85:18:85:18 | y | 0 | 86 | 86 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | != | test.c:94:16:94:16 | 0 | 0 | 94 | 96 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 70 | 70 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 99 | 102 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 102 | 102 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 107 | 109 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 109 | 109 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 109 | 117 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 113 | 113 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | != | test.c:94:11:94:11 | x | 0 | 94 | 96 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 70 | 70 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 99 | 102 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 102 | 102 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 107 | 109 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 109 | 109 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 109 | 117 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | < | test.c:102:20:102:21 | 10 | 0 | 102 | 102 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 70 | 70 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 107 | 109 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 109 | 109 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 109 | 117 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 70 | 70 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 107 | 109 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 109 | 109 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 109 | 117 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | >= | test.c:102:16:102:16 | j | 1 | 102 | 102 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 109 | 109 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 113 | 113 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 109 | 109 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 113 | 113 |
+| test.c:109:9:109:23 | ... \|\| ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 113 | 113 |
+| test.c:109:9:109:23 | ... \|\| ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 113 | 113 |
+| test.c:109:9:109:23 | ... \|\| ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | 0 | 0 | 113 | 113 |
+| test.c:109:9:109:23 | ... \|\| ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
+| test.c:109:19:109:23 | ... < ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | 0 | 0 | 113 | 113 |
+| test.c:109:19:109:23 | ... < ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 31 | 32 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | != | test.cpp:31:7:31:7 | x | 0 | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 31 | 32 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.ql
new file mode 100644
index 000000000000..85e5f8376f0e
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.ql
@@ -0,0 +1,23 @@
+/**
+ * @name Guards control test
+ * @description List which guards ensure which inequalities apply to which blocks
+ * @kind test
+ */
+
+import cpp
+import semmle.code.cpp.controlflow.IRGuards
+
+
+from GuardCondition guard, Expr left, Expr right, int k, int start, int end, string op
+where 
+exists(BasicBlock block |
+       guard.ensuresLt(left, right, k, block, true) and op = "<"
+       or
+       guard.ensuresLt(left, right, k, block, false) and op = ">=" 
+        or
+       guard.ensuresEq(left, right, k, block, true) and op = "=="
+       or
+       guard.ensuresEq(left, right, k, block, false) and op = "!=" |
+       block.hasLocationInfo(_, start, _, end, _)
+)
+select guard, left, op, right, k, start, end
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/test.c b/cpp/ql/test/library-tests/controlflow/guards-ir/test.c
new file mode 100644
index 000000000000..186244d4fca2
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/test.c
@@ -0,0 +1,149 @@
+
+int test(int x, int w, int z) {
+    int j;
+    long y = 50;
+
+    // simple comparison
+    if (x > 0) {
+        y = 20;
+        z = 10;
+    } else {
+        y = 30;
+    }
+
+    z = x + y;
+
+    // More complex
+    if(x < 0 && y > 1)
+        y = 40;
+    else
+        y = 20;  /* The && expression does not control this block as the x<0 expression jumps here if false. */
+
+
+    z = 10;
+
+    // while loop
+    while(x > 0) {
+        y = 10;
+        x--;
+    }
+
+    z += y;
+
+    // for loop
+    for(j = 0; j < 10; j++) {
+        y = 0;
+        w = 10;
+    }
+
+    z += w;
+
+    // nested control flow
+    for(j = 0; j < 10; j++) {
+        y = 30;
+        if(z > 0)
+            if(y > 0) {
+                w = 0;
+                break;
+            } else {
+                w = 20;
+            }
+        else {
+            w = 10;
+            continue;
+        }
+        x = 0;
+    }
+
+    if (x == 0 || y < 0) {
+        y = 60;
+        z = 10;
+    } else
+        return z;
+
+    z += x;
+
+    return 0;
+}
+
+
+int test2(int x, int w, int z) {
+    int j;
+    long y = 50;
+
+    // simple comparison
+    if (x == 0) {
+        y = 20;
+        z = 10;
+    } else {
+        y = 30;
+    }
+
+    z = x + y;
+
+    // More complex
+    if(x == 0 && y != 0)
+        y = 40;
+    else
+        y = 20;
+
+    
+    z = 10;
+
+    // while loop
+    while(x != 0) {
+        y = 10;
+        x--;
+    }
+
+    z += y;
+
+    // for loop
+    for(j = 0; j < 10; j++) {
+        y = 0;
+        w = 10;
+    }
+
+    z += w;
+
+    if (x == 0 || y < 0) {
+        y = 60;
+        z = 10;
+    } else
+        return z;
+
+    z += x;
+
+    return 0;
+}
+
+int test3_condition();
+void test3_action();
+
+void test3() {
+  int b = 0;
+
+  if (1 && test3_condition()) {
+    b = 1;
+    test3_action();
+  }
+
+  if (b) {
+    test3_action();
+  }
+}
+
+void test4(int i) {
+  if (0) {
+    if (i) {
+      ;
+    }
+  }
+  return;
+}
+
+void test5(int x) {
+  if (!x) {
+    test3();
+  }
+}
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/test.cpp b/cpp/ql/test/library-tests/controlflow/guards-ir/test.cpp
new file mode 100644
index 000000000000..46d894813f9b
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/test.cpp
@@ -0,0 +1,54 @@
+class X
+{
+public:
+  void set();
+};
+
+class Y
+{
+public:
+  Y* f();
+
+  const X* get() const { return 0; }
+  X* get() { return 0; }
+};
+
+Y* Y::f()
+{
+  if ( get() )
+    get()->set();
+  return 0;
+}
+
+class Error {
+public:
+  Error() {}
+};
+
+bool getABool();
+
+void doSomething(int x) {
+  if (x == -1) {
+    throw new Error();
+  }
+}
+
+void doSomethingElse(int x);
+
+bool testWithCatch0(int v)
+{
+    try
+    {
+        if( getABool() )
+        {
+            doSomething(v);
+            return true;
+        }
+    }
+    catch(Error &e)
+    {
+      doSomethingElse(v);
+    }
+
+    return false;
+}

From ad8f30d2f72c65c50a52ee9a18bc9d59b64b53bb Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Fri, 14 Sep 2018 11:01:28 -0700
Subject: [PATCH 04/16] C++: accept test output and add IR guards tests

---
 .../controlflow/guards-ir/ASTGuards.expected  |   1 +
 .../guards-ir/ASTGuardsCompare.expected       |   4 +
 .../guards-ir/ASTGuardsControl.expected       |  11 +-
 .../guards-ir/ASTGuardsEnsure.expected        |   6 +
 .../controlflow/guards-ir/IRGuards.expected   |  26 +++
 .../controlflow/guards-ir/IRGuards.ql         |   5 +
 .../guards-ir/IRGuardsCompare.expected        | 104 ++++++++++++
 .../controlflow/guards-ir/IRGuardsCompare.ql  |  30 ++++
 .../guards-ir/IRGuardsControl.expected        |  85 ++++++++++
 .../controlflow/guards-ir/IRGuardsControl.ql  |  16 ++
 .../guards-ir/IRGuardsEnsure.expected         | 152 ++++++++++++++++++
 .../controlflow/guards-ir/IRGuardsEnsure.ql   |  23 +++
 12 files changed, 458 insertions(+), 5 deletions(-)
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.ql
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.expected
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.ql
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.ql
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.expected
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.ql

diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
index b73e7064339e..b73e94106192 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
@@ -28,5 +28,6 @@
 | test.c:146:7:146:8 | ! ... |
 | test.c:146:8:146:8 | x |
 | test.cpp:18:8:18:10 | call to get |
+| test.cpp:18:8:18:12 | (bool)... |
 | test.cpp:31:7:31:13 | ... == ... |
 | test.cpp:42:13:42:20 | call to getABool |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
index 58068f3991df..99339f723a61 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
@@ -14,6 +14,10 @@
 | 17 | y < 1+1 when ... > ... is false |
 | 17 | y >= 1+1 when ... && ... is true |
 | 17 | y >= 1+1 when ... > ... is true |
+| 18 | call to get != call to get+0 when (bool)... is true |
+| 18 | call to get != call to get+0 when call to get is true |
+| 18 | call to get == call to get+0 when (bool)... is false |
+| 18 | call to get == call to get+0 when call to get is false |
 | 26 | 0 < x+0 when ... > ... is true |
 | 26 | 0 >= x+0 when ... > ... is false |
 | 26 | x < 0+1 when ... > ... is false |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
index a9f1c7aa6c41..f5fd0f184e48 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
@@ -74,17 +74,18 @@
 | test.c:109:19:109:23 | ... < ... | false | 113 | 113 |
 | test.c:126:7:126:7 | 1 | true | 126 | 126 |
 | test.c:126:7:126:7 | 1 | true | 126 | 128 |
-| test.c:126:7:126:7 | 1 | true | 131 | 131 |
-| test.c:126:7:126:7 | 1 | true | 131 | 132 |
-| test.c:126:7:126:7 | 1 | true | 134 | 123 |
 | test.c:126:7:126:28 | ... && ... | true | 126 | 128 |
 | test.c:126:12:126:26 | call to test3_condition | true | 126 | 128 |
 | test.c:131:7:131:7 | b | true | 131 | 132 |
-| test.c:137:7:137:7 | 0 | false | 142 | 136 |
+| test.c:137:7:137:7 | 0 | true | 137 | 138 |
+| test.c:137:7:137:7 | 0 | true | 138 | 139 |
 | test.c:138:9:138:9 | i | true | 138 | 139 |
 | test.c:146:7:146:8 | ! ... | true | 146 | 147 |
 | test.c:146:8:146:8 | x | false | 146 | 147 |
-| test.cpp:18:8:18:10 | call to get | false | 20 | 16 |
+| test.cpp:18:8:18:10 | call to get | true | 19 | 19 |
+| test.cpp:18:8:18:12 | (bool)... | true | 19 | 19 |
+| test.cpp:31:7:31:13 | ... == ... | false | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | true | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | true | 31 | 32 |
 | test.cpp:42:13:42:20 | call to getABool | true | 43 | 45 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
index 99a1097618d8..9186ab1fa1ea 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
@@ -154,7 +154,13 @@
 | test.c:109:9:109:23 | ... \|\| ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
 | test.c:109:19:109:23 | ... < ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | 0 | 0 | 113 | 113 |
 | test.c:109:19:109:23 | ... < ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
+| test.cpp:18:8:18:10 | call to get | test.cpp:18:8:18:10 | call to get | != | test.cpp:18:8:18:10 | call to get | 0 | 19 | 19 |
+| test.cpp:18:8:18:12 | (bool)... | test.cpp:18:8:18:10 | call to get | != | test.cpp:18:8:18:10 | call to get | 0 | 19 | 19 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 31 | 32 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | != | test.cpp:31:7:31:7 | x | 0 | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | != | test.cpp:31:7:31:7 | x | 0 | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 31 | 32 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected
new file mode 100644
index 000000000000..72892f0e0336
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected
@@ -0,0 +1,26 @@
+| test.c:7:9:7:13 | ... > ... |
+| test.c:17:8:17:12 | ... < ... |
+| test.c:17:17:17:21 | ... > ... |
+| test.c:26:11:26:15 | ... > ... |
+| test.c:34:16:34:21 | ... < ... |
+| test.c:42:16:42:21 | ... < ... |
+| test.c:44:12:44:16 | ... > ... |
+| test.c:45:16:45:20 | ... > ... |
+| test.c:58:9:58:14 | ... == ... |
+| test.c:58:19:58:23 | ... < ... |
+| test.c:75:9:75:14 | ... == ... |
+| test.c:85:8:85:13 | ... == ... |
+| test.c:85:18:85:23 | ... != ... |
+| test.c:94:11:94:16 | ... != ... |
+| test.c:102:16:102:21 | ... < ... |
+| test.c:109:9:109:14 | ... == ... |
+| test.c:109:19:109:23 | ... < ... |
+| test.c:126:7:126:7 | 1 |
+| test.c:126:12:126:26 | call to test3_condition |
+| test.c:131:7:131:7 | b |
+| test.c:137:7:137:7 | 0 |
+| test.c:138:9:138:9 | i |
+| test.c:146:8:146:8 | x |
+| test.cpp:18:8:18:12 | (bool)... |
+| test.cpp:31:7:31:13 | ... == ... |
+| test.cpp:42:13:42:20 | call to getABool |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.ql
new file mode 100644
index 000000000000..9560c9dc79ca
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.ql
@@ -0,0 +1,5 @@
+import cpp
+import semmle.code.cpp.controlflow.IRGuards
+
+from IRGuardCondition guard
+select guard.getAST()
\ No newline at end of file
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.expected
new file mode 100644
index 000000000000..d118b0463076
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.expected
@@ -0,0 +1,104 @@
+| 7 | 0 < x+0 when ... > ... is true |
+| 7 | 0 >= x+0 when ... > ... is false |
+| 7 | x < 0+1 when ... > ... is false |
+| 7 | x >= 0+1 when ... > ... is true |
+| 17 | 0 < x+1 when ... < ... is false |
+| 17 | 0 >= x+1 when ... < ... is true |
+| 17 | 1 < y+0 when ... > ... is true |
+| 17 | 1 >= y+0 when ... > ... is false |
+| 17 | (long)... < y+0 when ... > ... is true |
+| 17 | (long)... >= y+0 when ... > ... is false |
+| 17 | x < 0+0 when ... < ... is true |
+| 17 | x >= 0+0 when ... < ... is false |
+| 17 | y < 1+1 when ... > ... is false |
+| 17 | y < (long)...+1 when ... > ... is false |
+| 17 | y >= 1+1 when ... > ... is true |
+| 17 | y >= (long)...+1 when ... > ... is true |
+| 18 | (bool)... != call to get+0 when (bool)... is true |
+| 18 | (bool)... != call to get+0 when call to get is true |
+| 18 | (bool)... == call to get+0 when (bool)... is false |
+| 18 | (bool)... == call to get+0 when call to get is false |
+| 18 | call to get != (bool)...+0 when (bool)... is true |
+| 18 | call to get != (bool)...+0 when call to get is true |
+| 18 | call to get != call to get+0 when (bool)... is true |
+| 18 | call to get != call to get+0 when call to get is true |
+| 18 | call to get == (bool)...+0 when (bool)... is false |
+| 18 | call to get == (bool)...+0 when call to get is false |
+| 18 | call to get == call to get+0 when (bool)... is false |
+| 18 | call to get == call to get+0 when call to get is false |
+| 26 | 0 < x+0 when ... > ... is true |
+| 26 | 0 >= x+0 when ... > ... is false |
+| 26 | x < 0+1 when ... > ... is false |
+| 26 | x >= 0+1 when ... > ... is true |
+| 31 | - ... != x+0 when ... == ... is false |
+| 31 | - ... == x+0 when ... == ... is true |
+| 31 | x != - ...+0 when ... == ... is false |
+| 31 | x == - ...+0 when ... == ... is true |
+| 34 | 10 < j+1 when ... < ... is false |
+| 34 | 10 >= j+1 when ... < ... is true |
+| 34 | j < 10+0 when ... < ... is true |
+| 34 | j >= 10+0 when ... < ... is false |
+| 42 | 10 < j+1 when ... < ... is false |
+| 42 | 10 >= j+1 when ... < ... is true |
+| 42 | j < 10+0 when ... < ... is true |
+| 42 | j >= 10+0 when ... < ... is false |
+| 44 | 0 < z+0 when ... > ... is true |
+| 44 | 0 >= z+0 when ... > ... is false |
+| 44 | z < 0+1 when ... > ... is false |
+| 44 | z >= 0+1 when ... > ... is true |
+| 45 | 0 < y+0 when ... > ... is true |
+| 45 | 0 >= y+0 when ... > ... is false |
+| 45 | (long)... < y+0 when ... > ... is true |
+| 45 | (long)... >= y+0 when ... > ... is false |
+| 45 | y < 0+1 when ... > ... is false |
+| 45 | y < (long)...+1 when ... > ... is false |
+| 45 | y >= 0+1 when ... > ... is true |
+| 45 | y >= (long)...+1 when ... > ... is true |
+| 58 | 0 != x+0 when ... == ... is false |
+| 58 | 0 < y+1 when ... < ... is false |
+| 58 | 0 == x+0 when ... == ... is true |
+| 58 | 0 >= y+1 when ... < ... is true |
+| 58 | (long)... < y+1 when ... < ... is false |
+| 58 | (long)... >= y+1 when ... < ... is true |
+| 58 | x != 0+0 when ... == ... is false |
+| 58 | x == 0+0 when ... == ... is true |
+| 58 | y < 0+0 when ... < ... is true |
+| 58 | y < (long)...+0 when ... < ... is true |
+| 58 | y >= 0+0 when ... < ... is false |
+| 58 | y >= (long)...+0 when ... < ... is false |
+| 75 | 0 != x+0 when ... == ... is false |
+| 75 | 0 == x+0 when ... == ... is true |
+| 75 | x != 0+0 when ... == ... is false |
+| 75 | x == 0+0 when ... == ... is true |
+| 85 | 0 != x+0 when ... == ... is false |
+| 85 | 0 != y+0 when ... != ... is true |
+| 85 | 0 == x+0 when ... == ... is true |
+| 85 | 0 == y+0 when ... != ... is false |
+| 85 | (long)... != y+0 when ... != ... is true |
+| 85 | (long)... == y+0 when ... != ... is false |
+| 85 | x != 0+0 when ... == ... is false |
+| 85 | x == 0+0 when ... == ... is true |
+| 85 | y != 0+0 when ... != ... is true |
+| 85 | y != (long)...+0 when ... != ... is true |
+| 85 | y == 0+0 when ... != ... is false |
+| 85 | y == (long)...+0 when ... != ... is false |
+| 94 | 0 != x+0 when ... != ... is true |
+| 94 | 0 == x+0 when ... != ... is false |
+| 94 | x != 0+0 when ... != ... is true |
+| 94 | x == 0+0 when ... != ... is false |
+| 102 | 10 < j+1 when ... < ... is false |
+| 102 | 10 >= j+1 when ... < ... is true |
+| 102 | j < 10+0 when ... < ... is true |
+| 102 | j >= 10+0 when ... < ... is false |
+| 109 | 0 != x+0 when ... == ... is false |
+| 109 | 0 < y+1 when ... < ... is false |
+| 109 | 0 == x+0 when ... == ... is true |
+| 109 | 0 >= y+1 when ... < ... is true |
+| 109 | (long)... < y+1 when ... < ... is false |
+| 109 | (long)... >= y+1 when ... < ... is true |
+| 109 | x != 0+0 when ... == ... is false |
+| 109 | x == 0+0 when ... == ... is true |
+| 109 | y < 0+0 when ... < ... is true |
+| 109 | y < (long)...+0 when ... < ... is true |
+| 109 | y >= 0+0 when ... < ... is false |
+| 109 | y >= (long)...+0 when ... < ... is false |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.ql
new file mode 100644
index 000000000000..4f390935a984
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.ql
@@ -0,0 +1,30 @@
+/**
+ * @name Guards comparison test
+ * @description List comparison parts.
+ * @kind test
+ */
+
+import cpp
+import semmle.code.cpp.controlflow.IRGuards
+
+Element clearConversions(Element e) {
+  if e instanceof Conversion
+  then result = e.(Conversion).getExpr*()
+  else result = e
+}
+
+from IRGuardCondition guard, Instruction left, Instruction right, int k, string which, string op, string msg
+where 
+(exists(boolean sense | sense = true and which = "true" or sense = false and which = "false" |
+    guard.comparesLt(left, right, k, true, sense) and op = " < "
+    or
+    guard.comparesLt(left, right, k, false, sense) and op = " >= "
+    or
+    guard.comparesEq(left, right, k, true, sense) and op = " == "
+    or 
+    guard.comparesEq(left, right, k, false, sense)  and op = " != "
+ )
+)
+and msg = clearConversions(left.getAST()) + op + clearConversions(right.getAST()) + "+" + k + " when " + clearConversions(guard.getAST()) + " is " + which
+
+select guard.getLocation().getStartLine(), msg
\ No newline at end of file
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
new file mode 100644
index 000000000000..41ac7f7254c4
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
@@ -0,0 +1,85 @@
+| test.c:7:9:7:13 | ... > ... | false | 11 | 11 |
+| test.c:7:9:7:13 | ... > ... | true | 8 | 8 |
+| test.c:17:8:17:12 | ... < ... | true | 17 | 17 |
+| test.c:17:8:17:12 | ... < ... | true | 18 | 18 |
+| test.c:17:17:17:21 | ... > ... | true | 18 | 18 |
+| test.c:26:11:26:15 | ... > ... | false | 2 | 2 |
+| test.c:26:11:26:15 | ... > ... | false | 31 | 31 |
+| test.c:26:11:26:15 | ... > ... | false | 34 | 34 |
+| test.c:26:11:26:15 | ... > ... | false | 35 | 35 |
+| test.c:26:11:26:15 | ... > ... | false | 39 | 39 |
+| test.c:26:11:26:15 | ... > ... | false | 42 | 42 |
+| test.c:26:11:26:15 | ... > ... | false | 43 | 43 |
+| test.c:26:11:26:15 | ... > ... | false | 45 | 45 |
+| test.c:26:11:26:15 | ... > ... | false | 46 | 46 |
+| test.c:26:11:26:15 | ... > ... | false | 49 | 49 |
+| test.c:26:11:26:15 | ... > ... | false | 52 | 52 |
+| test.c:26:11:26:15 | ... > ... | false | 56 | 56 |
+| test.c:26:11:26:15 | ... > ... | false | 58 | 58 |
+| test.c:26:11:26:15 | ... > ... | false | 59 | 59 |
+| test.c:26:11:26:15 | ... > ... | false | 62 | 62 |
+| test.c:26:11:26:15 | ... > ... | true | 27 | 27 |
+| test.c:34:16:34:21 | ... < ... | false | 2 | 2 |
+| test.c:34:16:34:21 | ... < ... | false | 39 | 39 |
+| test.c:34:16:34:21 | ... < ... | false | 42 | 42 |
+| test.c:34:16:34:21 | ... < ... | false | 43 | 43 |
+| test.c:34:16:34:21 | ... < ... | false | 45 | 45 |
+| test.c:34:16:34:21 | ... < ... | false | 46 | 46 |
+| test.c:34:16:34:21 | ... < ... | false | 49 | 49 |
+| test.c:34:16:34:21 | ... < ... | false | 52 | 52 |
+| test.c:34:16:34:21 | ... < ... | false | 56 | 56 |
+| test.c:34:16:34:21 | ... < ... | false | 58 | 58 |
+| test.c:34:16:34:21 | ... < ... | false | 59 | 59 |
+| test.c:34:16:34:21 | ... < ... | false | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | true | 35 | 35 |
+| test.c:42:16:42:21 | ... < ... | true | 42 | 42 |
+| test.c:42:16:42:21 | ... < ... | true | 43 | 43 |
+| test.c:42:16:42:21 | ... < ... | true | 45 | 45 |
+| test.c:42:16:42:21 | ... < ... | true | 46 | 46 |
+| test.c:42:16:42:21 | ... < ... | true | 49 | 49 |
+| test.c:42:16:42:21 | ... < ... | true | 52 | 52 |
+| test.c:44:12:44:16 | ... > ... | false | 52 | 52 |
+| test.c:44:12:44:16 | ... > ... | true | 45 | 45 |
+| test.c:44:12:44:16 | ... > ... | true | 46 | 46 |
+| test.c:44:12:44:16 | ... > ... | true | 49 | 49 |
+| test.c:45:16:45:20 | ... > ... | false | 49 | 49 |
+| test.c:45:16:45:20 | ... > ... | true | 46 | 46 |
+| test.c:58:9:58:14 | ... == ... | false | 58 | 58 |
+| test.c:58:9:58:14 | ... == ... | false | 62 | 62 |
+| test.c:58:19:58:23 | ... < ... | false | 62 | 62 |
+| test.c:75:9:75:14 | ... == ... | false | 79 | 79 |
+| test.c:75:9:75:14 | ... == ... | true | 76 | 76 |
+| test.c:85:8:85:13 | ... == ... | true | 85 | 85 |
+| test.c:85:8:85:13 | ... == ... | true | 86 | 86 |
+| test.c:85:18:85:23 | ... != ... | true | 86 | 86 |
+| test.c:94:11:94:16 | ... != ... | false | 70 | 70 |
+| test.c:94:11:94:16 | ... != ... | false | 99 | 99 |
+| test.c:94:11:94:16 | ... != ... | false | 102 | 102 |
+| test.c:94:11:94:16 | ... != ... | false | 103 | 103 |
+| test.c:94:11:94:16 | ... != ... | false | 107 | 107 |
+| test.c:94:11:94:16 | ... != ... | false | 109 | 109 |
+| test.c:94:11:94:16 | ... != ... | false | 110 | 110 |
+| test.c:94:11:94:16 | ... != ... | false | 113 | 113 |
+| test.c:94:11:94:16 | ... != ... | true | 95 | 95 |
+| test.c:102:16:102:21 | ... < ... | false | 70 | 70 |
+| test.c:102:16:102:21 | ... < ... | false | 107 | 107 |
+| test.c:102:16:102:21 | ... < ... | false | 109 | 109 |
+| test.c:102:16:102:21 | ... < ... | false | 110 | 110 |
+| test.c:102:16:102:21 | ... < ... | false | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | true | 103 | 103 |
+| test.c:109:9:109:14 | ... == ... | false | 109 | 109 |
+| test.c:109:9:109:14 | ... == ... | false | 113 | 113 |
+| test.c:109:19:109:23 | ... < ... | false | 113 | 113 |
+| test.c:126:7:126:7 | 1 | true | 126 | 126 |
+| test.c:126:7:126:7 | 1 | true | 127 | 127 |
+| test.c:126:12:126:26 | call to test3_condition | true | 127 | 127 |
+| test.c:131:7:131:7 | b | true | 132 | 132 |
+| test.c:137:7:137:7 | 0 | true | 138 | 138 |
+| test.c:137:7:137:7 | 0 | true | 139 | 139 |
+| test.c:138:9:138:9 | i | true | 139 | 139 |
+| test.c:146:8:146:8 | x | false | 147 | 147 |
+| test.cpp:18:8:18:12 | (bool)... | true | 0 | 0 |
+| test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | true | 30 | 30 |
+| test.cpp:31:7:31:13 | ... == ... | true | 32 | 32 |
+| test.cpp:42:13:42:20 | call to getABool | true | 44 | 44 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.ql
new file mode 100644
index 000000000000..a9864da941c1
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.ql
@@ -0,0 +1,16 @@
+/**
+ * @name Guards control test
+ * @description List which guards control which blocks
+ * @kind test
+ */
+
+import cpp
+import semmle.code.cpp.controlflow.IRGuards
+
+from IRGuardCondition guard, boolean sense, int start, int end
+where 
+exists(IRBlock block |
+       guard.controls(block, sense) and
+       block.getLocation().hasLocationInfo(_, start, _, end, _)
+)
+select guard.getAST(), sense, start, end
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.expected
new file mode 100644
index 000000000000..8788337ccc3b
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.expected
@@ -0,0 +1,152 @@
+| test.c:7:9:7:13 | ... > ... | test.c:7:9:7:9 | x | < | test.c:7:13:7:13 | 0 | 1 | 11 | 11 |
+| test.c:7:9:7:13 | ... > ... | test.c:7:9:7:9 | x | >= | test.c:7:13:7:13 | 0 | 1 | 8 | 8 |
+| test.c:7:9:7:13 | ... > ... | test.c:7:13:7:13 | 0 | < | test.c:7:9:7:9 | x | 0 | 8 | 8 |
+| test.c:7:9:7:13 | ... > ... | test.c:7:13:7:13 | 0 | >= | test.c:7:9:7:9 | x | 0 | 11 | 11 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 17 | 17 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 18 | 18 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 17 | 17 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 18 | 18 |
+| test.c:17:17:17:21 | ... > ... | test.c:17:17:17:17 | y | >= | test.c:17:21:17:21 | (long)... | 1 | 18 | 18 |
+| test.c:17:17:17:21 | ... > ... | test.c:17:21:17:21 | (long)... | < | test.c:17:17:17:17 | y | 0 | 18 | 18 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 2 | 2 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 31 | 31 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 34 | 34 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 35 | 35 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 39 | 39 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 42 | 42 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 43 | 43 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 45 | 45 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 46 | 46 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 49 | 49 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 52 | 52 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 56 | 56 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 58 | 58 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 59 | 59 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 62 | 62 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | >= | test.c:26:15:26:15 | 0 | 1 | 27 | 27 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | < | test.c:26:11:26:11 | x | 0 | 27 | 27 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 2 | 2 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 31 | 31 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 34 | 34 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 35 | 35 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 39 | 39 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 42 | 42 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 43 | 43 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 45 | 45 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 46 | 46 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 49 | 49 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 52 | 52 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 56 | 56 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 58 | 58 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 59 | 59 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | < | test.c:34:20:34:21 | 10 | 0 | 35 | 35 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 2 | 2 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 39 | 39 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 42 | 42 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 43 | 43 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 45 | 45 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 46 | 46 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 49 | 49 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 52 | 52 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 56 | 56 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 58 | 58 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 59 | 59 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 2 | 2 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 39 | 39 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 42 | 42 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 43 | 43 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 45 | 45 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 46 | 46 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 49 | 49 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 52 | 52 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 56 | 56 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 58 | 58 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 59 | 59 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | >= | test.c:34:16:34:16 | j | 1 | 35 | 35 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 42 | 42 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 43 | 43 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 45 | 45 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 46 | 46 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 49 | 49 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 52 | 52 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 42 | 42 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 43 | 43 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 45 | 45 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 46 | 46 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 49 | 49 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 52 | 52 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | < | test.c:44:16:44:16 | 0 | 1 | 52 | 52 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 45 | 45 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 46 | 46 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 49 | 49 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 45 | 45 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 46 | 46 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 49 | 49 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | >= | test.c:44:12:44:12 | z | 0 | 52 | 52 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:16:45:16 | y | < | test.c:45:20:45:20 | (long)... | 1 | 49 | 49 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:16:45:16 | y | >= | test.c:45:20:45:20 | (long)... | 1 | 46 | 46 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:20:45:20 | (long)... | < | test.c:45:16:45:16 | y | 0 | 46 | 46 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:20:45:20 | (long)... | >= | test.c:45:16:45:16 | y | 0 | 49 | 49 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 58 | 58 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 62 | 62 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 58 | 58 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 62 | 62 |
+| test.c:58:19:58:23 | ... < ... | test.c:58:19:58:19 | y | >= | test.c:58:23:58:23 | (long)... | 0 | 62 | 62 |
+| test.c:58:19:58:23 | ... < ... | test.c:58:23:58:23 | (long)... | < | test.c:58:19:58:19 | y | 1 | 62 | 62 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:9:75:9 | x | != | test.c:75:14:75:14 | 0 | 0 | 79 | 79 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:9:75:9 | x | == | test.c:75:14:75:14 | 0 | 0 | 76 | 76 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:14:75:14 | 0 | != | test.c:75:9:75:9 | x | 0 | 79 | 79 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:14:75:14 | 0 | == | test.c:75:9:75:9 | x | 0 | 76 | 76 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 85 | 85 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 86 | 86 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 85 | 85 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 86 | 86 |
+| test.c:85:18:85:23 | ... != ... | test.c:85:18:85:18 | y | != | test.c:85:23:85:23 | (long)... | 0 | 86 | 86 |
+| test.c:85:18:85:23 | ... != ... | test.c:85:23:85:23 | (long)... | != | test.c:85:18:85:18 | y | 0 | 86 | 86 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | != | test.c:94:16:94:16 | 0 | 0 | 95 | 95 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 70 | 70 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 99 | 99 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 102 | 102 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 103 | 103 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 107 | 107 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 109 | 109 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 110 | 110 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 113 | 113 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | != | test.c:94:11:94:11 | x | 0 | 95 | 95 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 70 | 70 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 99 | 99 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 102 | 102 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 103 | 103 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 107 | 107 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 109 | 109 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 110 | 110 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | < | test.c:102:20:102:21 | 10 | 0 | 103 | 103 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 70 | 70 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 107 | 107 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 109 | 109 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 110 | 110 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 70 | 70 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 107 | 107 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 109 | 109 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 110 | 110 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | >= | test.c:102:16:102:16 | j | 1 | 103 | 103 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 109 | 109 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 113 | 113 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 109 | 109 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 113 | 113 |
+| test.c:109:19:109:23 | ... < ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | (long)... | 0 | 113 | 113 |
+| test.c:109:19:109:23 | ... < ... | test.c:109:23:109:23 | (long)... | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
+| test.cpp:18:8:18:12 | (bool)... | test.cpp:18:8:18:10 | call to get | != | test.cpp:18:8:18:12 | (bool)... | 0 | 0 | 0 |
+| test.cpp:18:8:18:12 | (bool)... | test.cpp:18:8:18:12 | (bool)... | != | test.cpp:18:8:18:10 | call to get | 0 | 0 | 0 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 32 | 32 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | != | test.cpp:31:7:31:7 | x | 0 | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 30 | 30 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 32 | 32 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.ql
new file mode 100644
index 000000000000..a13d4cf2a42e
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.ql
@@ -0,0 +1,23 @@
+/**
+ * @name Guards control test
+ * @description List which guards ensure which inequalities apply to which blocks
+ * @kind test
+ */
+
+import cpp
+import semmle.code.cpp.controlflow.IRGuards
+
+
+from IRGuardCondition guard, Instruction left, Instruction right, int k, int start, int end, string op
+where 
+exists(IRBlock block |
+       guard.ensuresLt(left, right, k, block, true) and op = "<"
+       or
+       guard.ensuresLt(left, right, k, block, false) and op = ">=" 
+        or
+       guard.ensuresEq(left, right, k, block, true) and op = "=="
+       or
+       guard.ensuresEq(left, right, k, block, false) and op = "!=" |
+       block.getLocation().hasLocationInfo(_, start, _, end, _)
+)
+select guard.getAST(), left.getAST(), op, right.getAST(), k, start, end

From 0273b20743abaf82c76fd4ce957b540246712a95 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Fri, 14 Sep 2018 11:11:22 -0700
Subject: [PATCH 05/16] C++: make internal classes private

---
 cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
index d8e7e1c12742..6e76cbec2dc1 100644
--- a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
+++ b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
@@ -63,7 +63,7 @@ class GuardCondition extends Expr {
   abstract cached predicate ensuresEq(Expr left, Expr right, int k, BasicBlock block, boolean areEqual);
 }
 
-class GuardConditionFromBinaryLogicalOperator extends GuardCondition {
+private class GuardConditionFromBinaryLogicalOperator extends GuardCondition {
   GuardConditionFromBinaryLogicalOperator() {
     exists(GuardCondition gc |
       this.(BinaryLogicalOperation).getAnOperand()= gc
@@ -106,7 +106,7 @@ class GuardConditionFromBinaryLogicalOperator extends GuardCondition {
   }
 }
 
-class GuardConditionFromShortCircuitNot extends GuardCondition, NotExpr {
+private class GuardConditionFromShortCircuitNot extends GuardCondition, NotExpr {
   GuardConditionFromShortCircuitNot() {
     not exists (Instruction inst | this.getFullyConverted() = inst.getAST()) and
     exists(IRGuardCondition ir | getOperand() = ir.getAST())
@@ -133,7 +133,7 @@ class GuardConditionFromShortCircuitNot extends GuardCondition, NotExpr {
   }
 }
 
-class GuardConditionFromIR extends GuardCondition {
+private class GuardConditionFromIR extends GuardCondition {
   IRGuardCondition ir;
   
   GuardConditionFromIR() {

From b5cd48d8197c2314e099afe49f093aab3e610100 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Fri, 14 Sep 2018 11:18:51 -0700
Subject: [PATCH 06/16] C++: comments on new classes and predicates

---
 .../src/semmle/code/cpp/controlflow/IRGuards.qll | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
index 6e76cbec2dc1..b0ab12be0f8f 100644
--- a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
+++ b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
@@ -2,7 +2,7 @@ import cpp
 import semmle.code.cpp.ir.IR
 
 /**
- * A Boolean condition in the IR that guards one or more basic blocks. This includes
+ * A Boolean condition in the AST that guards one or more basic blocks. This includes
  * operands of logical operators but not switch statements.
  */
 class GuardCondition extends Expr {
@@ -63,6 +63,9 @@ class GuardCondition extends Expr {
   abstract cached predicate ensuresEq(Expr left, Expr right, int k, BasicBlock block, boolean areEqual);
 }
 
+/**
+ * A binary logical operator in the AST that guards one or more basic blocks.
+ */
 private class GuardConditionFromBinaryLogicalOperator extends GuardCondition {
   GuardConditionFromBinaryLogicalOperator() {
     exists(GuardCondition gc |
@@ -106,6 +109,10 @@ private class GuardConditionFromBinaryLogicalOperator extends GuardCondition {
   }
 }
 
+/**
+ * A `!` operator in the AST that guards one or more basic blocks, and does not have a corresponding
+ * IR instruction.
+ */
 private class GuardConditionFromShortCircuitNot extends GuardCondition, NotExpr {
   GuardConditionFromShortCircuitNot() {
     not exists (Instruction inst | this.getFullyConverted() = inst.getAST()) and
@@ -132,7 +139,10 @@ private class GuardConditionFromShortCircuitNot extends GuardCondition, NotExpr
     getOperand().(GuardCondition).ensuresEq(left, right, k, block, testIsTrue.booleanNot())
   }
 }
-
+/**
+ * A Boolean condition in the AST that guards one or more basic blocks and has a corresponding IR
+ * instruction.
+ */
 private class GuardConditionFromIR extends GuardCondition {
   IRGuardCondition ir;
   
@@ -463,7 +473,7 @@ private int int_value(Instruction i) {
   result = i.(IntegerConstantInstruction).getValue().toInt()
 }
 
-
+/** Gets the underlying expression of `e`. */
 private Expr remove_conversions(Expr e) {
   if e instanceof Conversion
   then result = e.(Conversion).getExpr*() and

From d6cea1b2038cbeda2588fa3bd08f5c351f925525 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Fri, 14 Sep 2018 16:24:10 -0700
Subject: [PATCH 07/16] C++: Add class and predicates to other IR stages

---
 .../cpp/ir/implementation/raw/Instruction.qll | 66 +++++++++++++++++--
 .../unaliased_ssa/Instruction.qll             | 66 +++++++++++++++++--
 2 files changed, 124 insertions(+), 8 deletions(-)

diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
index e63fd979def7..d01378e32cae 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
@@ -967,28 +967,86 @@ class CompareNEInstruction extends CompareInstruction {
   }
 }
 
-class CompareLTInstruction extends CompareInstruction {
+class RelationalInstruction extends CompareInstruction {
+  RelationalInstruction() {
+    opcode instanceof RelationalOpcode
+  }
+
+  abstract Instruction getGreaterOperand();
+  abstract Instruction getLesserOperand();
+  abstract predicate isStrict();
+}
+
+class CompareLTInstruction extends RelationalInstruction {
   CompareLTInstruction() {
     opcode instanceof Opcode::CompareLT
   }
+
+  override Instruction getLesserOperand() {
+    result = getLeftOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getRightOperand()
+  }
+
+  override predicate isStrict() {
+    any()
+  }
 }
 
-class CompareGTInstruction extends CompareInstruction {
+class CompareGTInstruction extends RelationalInstruction {
   CompareGTInstruction() {
     opcode instanceof Opcode::CompareGT
   }
+
+  override Instruction getLesserOperand() {
+    result = getRightOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getLeftOperand()
+  }
+
+  override predicate isStrict() {
+    any()
+  }
 }
 
-class CompareLEInstruction extends CompareInstruction {
+class CompareLEInstruction extends RelationalInstruction {
   CompareLEInstruction() {
     opcode instanceof Opcode::CompareLE
   }
+
+  override Instruction getLesserOperand() {
+    result = getLeftOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getRightOperand()
+  }
+
+  override predicate isStrict() {
+    none()
+  }
 }
 
-class CompareGEInstruction extends CompareInstruction {
+class CompareGEInstruction extends RelationalInstruction {
   CompareGEInstruction() {
     opcode instanceof Opcode::CompareGE
   }
+
+  override Instruction getLesserOperand() {
+    result = getRightOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getLeftOperand()
+  }
+
+  override predicate isStrict() {
+    none()
+  }
 }
 
 class SwitchInstruction extends Instruction {
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
index e63fd979def7..d01378e32cae 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
@@ -967,28 +967,86 @@ class CompareNEInstruction extends CompareInstruction {
   }
 }
 
-class CompareLTInstruction extends CompareInstruction {
+class RelationalInstruction extends CompareInstruction {
+  RelationalInstruction() {
+    opcode instanceof RelationalOpcode
+  }
+
+  abstract Instruction getGreaterOperand();
+  abstract Instruction getLesserOperand();
+  abstract predicate isStrict();
+}
+
+class CompareLTInstruction extends RelationalInstruction {
   CompareLTInstruction() {
     opcode instanceof Opcode::CompareLT
   }
+
+  override Instruction getLesserOperand() {
+    result = getLeftOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getRightOperand()
+  }
+
+  override predicate isStrict() {
+    any()
+  }
 }
 
-class CompareGTInstruction extends CompareInstruction {
+class CompareGTInstruction extends RelationalInstruction {
   CompareGTInstruction() {
     opcode instanceof Opcode::CompareGT
   }
+
+  override Instruction getLesserOperand() {
+    result = getRightOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getLeftOperand()
+  }
+
+  override predicate isStrict() {
+    any()
+  }
 }
 
-class CompareLEInstruction extends CompareInstruction {
+class CompareLEInstruction extends RelationalInstruction {
   CompareLEInstruction() {
     opcode instanceof Opcode::CompareLE
   }
+
+  override Instruction getLesserOperand() {
+    result = getLeftOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getRightOperand()
+  }
+
+  override predicate isStrict() {
+    none()
+  }
 }
 
-class CompareGEInstruction extends CompareInstruction {
+class CompareGEInstruction extends RelationalInstruction {
   CompareGEInstruction() {
     opcode instanceof Opcode::CompareGE
   }
+
+  override Instruction getLesserOperand() {
+    result = getRightOperand()
+  }
+
+  override Instruction getGreaterOperand() {
+    result = getLeftOperand()
+  }
+
+  override predicate isStrict() {
+    none()
+  }
 }
 
 class SwitchInstruction extends Instruction {

From e40ce91e7e4668a7dd356942069be9bb8911817f Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Fri, 14 Sep 2018 16:35:13 -0700
Subject: [PATCH 08/16] C++: document new IR class and predicates

---
 .../aliased_ssa/Instruction.qll               | 20 ++++++++++++++++++-
 .../cpp/ir/implementation/raw/Instruction.qll | 20 ++++++++++++++++++-
 .../unaliased_ssa/Instruction.qll             | 20 ++++++++++++++++++-
 3 files changed, 57 insertions(+), 3 deletions(-)

diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
index d01378e32cae..510899f16a35 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
@@ -967,13 +967,31 @@ class CompareNEInstruction extends CompareInstruction {
   }
 }
 
+/**
+ * Represents an instruction that does a relative comparison of two values, such as `<` or `>=`.
+ */
 class RelationalInstruction extends CompareInstruction {
   RelationalInstruction() {
     opcode instanceof RelationalOpcode
   }
-
+  /**
+   * Gets the operand on the "greater" (or "greater-or-equal") side
+   * of this relational instruction, that is, the side that is larger
+   * if the overall instruction evaluates to `true`; for example on
+   * `x <= 20` this is the `20`, and on `y > 0` it is `y`.
+   */
   abstract Instruction getGreaterOperand();
+
+  /**
+   * Gets the operand on the "lesser" (or "lesser-or-equal") side
+   * of this relational instruction, that is, the side that is smaller
+   * if the overall instruction evaluates to `true`; for example on
+   * `x <= 20` this is `x`, and on `y > 0` it is the `0`.
+   */
   abstract Instruction getLesserOperand();
+  /**
+   * Holds if this relational instruction is strict (is not an "or-equal" instruction).
+   */
   abstract predicate isStrict();
 }
 
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
index d01378e32cae..510899f16a35 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
@@ -967,13 +967,31 @@ class CompareNEInstruction extends CompareInstruction {
   }
 }
 
+/**
+ * Represents an instruction that does a relative comparison of two values, such as `<` or `>=`.
+ */
 class RelationalInstruction extends CompareInstruction {
   RelationalInstruction() {
     opcode instanceof RelationalOpcode
   }
-
+  /**
+   * Gets the operand on the "greater" (or "greater-or-equal") side
+   * of this relational instruction, that is, the side that is larger
+   * if the overall instruction evaluates to `true`; for example on
+   * `x <= 20` this is the `20`, and on `y > 0` it is `y`.
+   */
   abstract Instruction getGreaterOperand();
+
+  /**
+   * Gets the operand on the "lesser" (or "lesser-or-equal") side
+   * of this relational instruction, that is, the side that is smaller
+   * if the overall instruction evaluates to `true`; for example on
+   * `x <= 20` this is `x`, and on `y > 0` it is the `0`.
+   */
   abstract Instruction getLesserOperand();
+  /**
+   * Holds if this relational instruction is strict (is not an "or-equal" instruction).
+   */
   abstract predicate isStrict();
 }
 
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
index d01378e32cae..510899f16a35 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
@@ -967,13 +967,31 @@ class CompareNEInstruction extends CompareInstruction {
   }
 }
 
+/**
+ * Represents an instruction that does a relative comparison of two values, such as `<` or `>=`.
+ */
 class RelationalInstruction extends CompareInstruction {
   RelationalInstruction() {
     opcode instanceof RelationalOpcode
   }
-
+  /**
+   * Gets the operand on the "greater" (or "greater-or-equal") side
+   * of this relational instruction, that is, the side that is larger
+   * if the overall instruction evaluates to `true`; for example on
+   * `x <= 20` this is the `20`, and on `y > 0` it is `y`.
+   */
   abstract Instruction getGreaterOperand();
+
+  /**
+   * Gets the operand on the "lesser" (or "lesser-or-equal") side
+   * of this relational instruction, that is, the side that is smaller
+   * if the overall instruction evaluates to `true`; for example on
+   * `x <= 20` this is `x`, and on `y > 0` it is the `0`.
+   */
   abstract Instruction getLesserOperand();
+  /**
+   * Holds if this relational instruction is strict (is not an "or-equal" instruction).
+   */
   abstract predicate isStrict();
 }
 

From 755e21d3556155c91ddf873cff7b6ce8363229f7 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Tue, 18 Sep 2018 12:54:24 -0700
Subject: [PATCH 09/16] C++: improve conversion handling in IRGuards.qll

---
 cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll         | 6 +++---
 .../library-tests/controlflow/guards-ir/ASTGuards.expected  | 1 -
 .../controlflow/guards-ir/ASTGuardsCompare.expected         | 2 --
 .../controlflow/guards-ir/ASTGuardsControl.expected         | 1 -
 .../controlflow/guards-ir/ASTGuardsEnsure.expected          | 1 -
 5 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
index b0ab12be0f8f..df0f6eb94823 100644
--- a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
+++ b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
@@ -7,7 +7,7 @@ import semmle.code.cpp.ir.IR
  */
 class GuardCondition extends Expr {
   GuardCondition() {
-    exists(IRGuardCondition ir | this.getFullyConverted() = ir.getAST())
+    exists(IRGuardCondition ir | this = remove_conversions(ir.getAST()))
     or
     // no binary operators in the IR
     exists(Instruction ir |
@@ -147,7 +147,7 @@ private class GuardConditionFromIR extends GuardCondition {
   IRGuardCondition ir;
   
   GuardConditionFromIR() {
-    this.getFullyConverted() = ir.getAST()
+    this = remove_conversions(ir.getAST())
   }
     override predicate controls(BasicBlock controlled, boolean testIsTrue) {
         /* This condition must determine the flow of control; that is, this
@@ -476,7 +476,7 @@ private int int_value(Instruction i) {
 /** Gets the underlying expression of `e`. */
 private Expr remove_conversions(Expr e) {
   if e instanceof Conversion
-  then result = e.(Conversion).getExpr*() and
+  then result = e.(Conversion).getExpr+() and
        not result instanceof Conversion
   else result = e
 }
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
index b73e94106192..b73e7064339e 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
@@ -28,6 +28,5 @@
 | test.c:146:7:146:8 | ! ... |
 | test.c:146:8:146:8 | x |
 | test.cpp:18:8:18:10 | call to get |
-| test.cpp:18:8:18:12 | (bool)... |
 | test.cpp:31:7:31:13 | ... == ... |
 | test.cpp:42:13:42:20 | call to getABool |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
index 99339f723a61..d786c284d473 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
@@ -14,9 +14,7 @@
 | 17 | y < 1+1 when ... > ... is false |
 | 17 | y >= 1+1 when ... && ... is true |
 | 17 | y >= 1+1 when ... > ... is true |
-| 18 | call to get != call to get+0 when (bool)... is true |
 | 18 | call to get != call to get+0 when call to get is true |
-| 18 | call to get == call to get+0 when (bool)... is false |
 | 18 | call to get == call to get+0 when call to get is false |
 | 26 | 0 < x+0 when ... > ... is true |
 | 26 | 0 >= x+0 when ... > ... is false |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
index f5fd0f184e48..a2fecbcbbee7 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
@@ -83,7 +83,6 @@
 | test.c:146:7:146:8 | ! ... | true | 146 | 147 |
 | test.c:146:8:146:8 | x | false | 146 | 147 |
 | test.cpp:18:8:18:10 | call to get | true | 19 | 19 |
-| test.cpp:18:8:18:12 | (bool)... | true | 19 | 19 |
 | test.cpp:31:7:31:13 | ... == ... | false | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
 | test.cpp:31:7:31:13 | ... == ... | true | 30 | 30 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
index 9186ab1fa1ea..8eb3eb83e277 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
@@ -155,7 +155,6 @@
 | test.c:109:19:109:23 | ... < ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | 0 | 0 | 113 | 113 |
 | test.c:109:19:109:23 | ... < ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
 | test.cpp:18:8:18:10 | call to get | test.cpp:18:8:18:10 | call to get | != | test.cpp:18:8:18:10 | call to get | 0 | 19 | 19 |
-| test.cpp:18:8:18:12 | (bool)... | test.cpp:18:8:18:10 | call to get | != | test.cpp:18:8:18:10 | call to get | 0 | 19 | 19 |
 | test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 34 | 34 |
 | test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |

From 4c9414408913a658606218c68625dae82d761a9e Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Tue, 18 Sep 2018 14:09:56 -0700
Subject: [PATCH 10/16] C++: remove abstract classes in IR

---
 .../semmle/code/cpp/controlflow/IRGuards.qll  | 20 ++++++++++++++-----
 .../aliased_ssa/Instruction.qll               | 12 ++++++++---
 .../cpp/ir/implementation/raw/Instruction.qll | 12 ++++++++---
 .../unaliased_ssa/Instruction.qll             | 12 ++++++++---
 4 files changed, 42 insertions(+), 14 deletions(-)

diff --git a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
index df0f6eb94823..dc9d6d435baa 100644
--- a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
+++ b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
@@ -46,21 +46,31 @@ class GuardCondition extends Expr {
    * being short-circuited) then it will only control blocks dominated by the
    * true (for `&&`) or false (for `||`) branch.
    */
-  abstract cached predicate controls(BasicBlock controlled, boolean testIsTrue);
+  cached predicate controls(BasicBlock controlled, boolean testIsTrue) {
+    none()
+  }
   
   /** Holds if (determined by this guard) `left < right + k` evaluates to `isLessThan` if this expression evaluates to `testIsTrue`. */
-  abstract cached predicate comparesLt(Expr left, Expr right, int k, boolean isLessThan, boolean testIsTrue);
+  cached predicate comparesLt(Expr left, Expr right, int k, boolean isLessThan, boolean testIsTrue) {
+    none()
+  }
 
   /** Holds if (determined by this guard) `left < right + k` must be `isLessThan` in `block`.
         If `isLessThan = false` then this implies `left >= right + k`.  */
-  abstract cached predicate ensuresLt(Expr left, Expr right, int k, BasicBlock block, boolean isLessThan);
+  cached predicate ensuresLt(Expr left, Expr right, int k, BasicBlock block, boolean isLessThan) {
+    none()
+  }
 
   /** Holds if (determined by this guard) `left == right + k` evaluates to `areEqual` if this expression evaluates to `testIsTrue`. */
-  abstract cached predicate comparesEq(Expr left, Expr right, int k, boolean areEqual, boolean testIsTrue);
+  cached predicate comparesEq(Expr left, Expr right, int k, boolean areEqual, boolean testIsTrue) {
+    none()
+  }
 
   /** Holds if (determined by this guard) `left == right + k` must be `areEqual` in `block`.
       If `areEqual = false` then this implies `left != right + k`.  */
-  abstract cached predicate ensuresEq(Expr left, Expr right, int k, BasicBlock block, boolean areEqual);
+  cached predicate ensuresEq(Expr left, Expr right, int k, BasicBlock block, boolean areEqual) {
+    none()
+  }
 }
 
 /**
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
index 510899f16a35..a9a9d8190e67 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
@@ -980,7 +980,9 @@ class RelationalInstruction extends CompareInstruction {
    * if the overall instruction evaluates to `true`; for example on
    * `x <= 20` this is the `20`, and on `y > 0` it is `y`.
    */
-  abstract Instruction getGreaterOperand();
+  Instruction getGreaterOperand() {
+    none()
+  }
 
   /**
    * Gets the operand on the "lesser" (or "lesser-or-equal") side
@@ -988,11 +990,15 @@ class RelationalInstruction extends CompareInstruction {
    * if the overall instruction evaluates to `true`; for example on
    * `x <= 20` this is `x`, and on `y > 0` it is the `0`.
    */
-  abstract Instruction getLesserOperand();
+  Instruction getLesserOperand() {
+    none()
+  }
   /**
    * Holds if this relational instruction is strict (is not an "or-equal" instruction).
    */
-  abstract predicate isStrict();
+  predicate isStrict() {
+    none()
+  }
 }
 
 class CompareLTInstruction extends RelationalInstruction {
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
index 510899f16a35..a9a9d8190e67 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
@@ -980,7 +980,9 @@ class RelationalInstruction extends CompareInstruction {
    * if the overall instruction evaluates to `true`; for example on
    * `x <= 20` this is the `20`, and on `y > 0` it is `y`.
    */
-  abstract Instruction getGreaterOperand();
+  Instruction getGreaterOperand() {
+    none()
+  }
 
   /**
    * Gets the operand on the "lesser" (or "lesser-or-equal") side
@@ -988,11 +990,15 @@ class RelationalInstruction extends CompareInstruction {
    * if the overall instruction evaluates to `true`; for example on
    * `x <= 20` this is `x`, and on `y > 0` it is the `0`.
    */
-  abstract Instruction getLesserOperand();
+  Instruction getLesserOperand() {
+    none()
+  }
   /**
    * Holds if this relational instruction is strict (is not an "or-equal" instruction).
    */
-  abstract predicate isStrict();
+  predicate isStrict() {
+    none()
+  }
 }
 
 class CompareLTInstruction extends RelationalInstruction {
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
index 510899f16a35..a9a9d8190e67 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
@@ -980,7 +980,9 @@ class RelationalInstruction extends CompareInstruction {
    * if the overall instruction evaluates to `true`; for example on
    * `x <= 20` this is the `20`, and on `y > 0` it is `y`.
    */
-  abstract Instruction getGreaterOperand();
+  Instruction getGreaterOperand() {
+    none()
+  }
 
   /**
    * Gets the operand on the "lesser" (or "lesser-or-equal") side
@@ -988,11 +990,15 @@ class RelationalInstruction extends CompareInstruction {
    * if the overall instruction evaluates to `true`; for example on
    * `x <= 20` this is `x`, and on `y > 0` it is the `0`.
    */
-  abstract Instruction getLesserOperand();
+  Instruction getLesserOperand() {
+    none()
+  }
   /**
    * Holds if this relational instruction is strict (is not an "or-equal" instruction).
    */
-  abstract predicate isStrict();
+  predicate isStrict() {
+    none()
+  }
 }
 
 class CompareLTInstruction extends RelationalInstruction {

From cc97cf9297215d55d7713457a1f8b161e74b4717 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Tue, 18 Sep 2018 14:52:46 -0700
Subject: [PATCH 11/16] C++: add isReachableFromFunctionEntry

---
 cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll       | 2 +-
 .../code/cpp/ir/implementation/aliased_ssa/IRBlock.qll    | 8 ++++++++
 .../src/semmle/code/cpp/ir/implementation/raw/IRBlock.qll | 8 ++++++++
 .../code/cpp/ir/implementation/unaliased_ssa/IRBlock.qll  | 8 ++++++++
 .../controlflow/guards-ir/ASTGuardsControl.expected       | 1 +
 .../controlflow/guards-ir/IRGuardsControl.expected        | 1 +
 6 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
index dc9d6d435baa..87045304da09 100644
--- a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
+++ b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
@@ -310,7 +310,7 @@ class IRGuardCondition extends Instruction {
             succ.dominates(controlled) and
             forall(IRBlock pred
             | pred.getASuccessor() = succ
-            | pred = thisblock or succ.dominates(pred)))) // removed reachability condition - is that OK?
+            | pred = thisblock or succ.dominates(pred) or not pred.isReachableFromFunctionEntry())))
     }
 }
 
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/IRBlock.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/IRBlock.qll
index c794c6cb288b..c51b05a073bb 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/IRBlock.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/IRBlock.qll
@@ -89,4 +89,12 @@ class IRBlock extends TIRBlock {
     dominates(result.getAPredecessor()) and
     not strictlyDominates(result)
   }
+  
+  /**
+   * Holds if this block is reachable from the entry point of its function
+   */
+  final predicate isReachableFromFunctionEntry() {
+    this = getFunctionIR().getEntryBlock() or
+    getAPredecessor().isReachableFromFunctionEntry()
+  }
 }
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/IRBlock.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/IRBlock.qll
index c794c6cb288b..c51b05a073bb 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/IRBlock.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/IRBlock.qll
@@ -89,4 +89,12 @@ class IRBlock extends TIRBlock {
     dominates(result.getAPredecessor()) and
     not strictlyDominates(result)
   }
+  
+  /**
+   * Holds if this block is reachable from the entry point of its function
+   */
+  final predicate isReachableFromFunctionEntry() {
+    this = getFunctionIR().getEntryBlock() or
+    getAPredecessor().isReachableFromFunctionEntry()
+  }
 }
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/IRBlock.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/IRBlock.qll
index c794c6cb288b..c51b05a073bb 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/IRBlock.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/IRBlock.qll
@@ -89,4 +89,12 @@ class IRBlock extends TIRBlock {
     dominates(result.getAPredecessor()) and
     not strictlyDominates(result)
   }
+  
+  /**
+   * Holds if this block is reachable from the entry point of its function
+   */
+  final predicate isReachableFromFunctionEntry() {
+    this = getFunctionIR().getEntryBlock() or
+    getAPredecessor().isReachableFromFunctionEntry()
+  }
 }
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
index a2fecbcbbee7..d4a5295b8771 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
@@ -87,4 +87,5 @@
 | test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
 | test.cpp:31:7:31:13 | ... == ... | true | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | true | 31 | 32 |
+| test.cpp:42:13:42:20 | call to getABool | false | 53 | 53 |
 | test.cpp:42:13:42:20 | call to getABool | true | 43 | 45 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
index 41ac7f7254c4..3e8fbb42f1a1 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
@@ -82,4 +82,5 @@
 | test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
 | test.cpp:31:7:31:13 | ... == ... | true | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | true | 32 | 32 |
+| test.cpp:42:13:42:20 | call to getABool | false | 53 | 53 |
 | test.cpp:42:13:42:20 | call to getABool | true | 44 | 44 |

From 9011e1381bc952cd8d89b925f1bb20b0f4b8d0c9 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Thu, 20 Sep 2018 12:56:43 -0700
Subject: [PATCH 12/16] C++: handle conversions in IR to AST translation

---
 .../semmle/code/cpp/controlflow/IRGuards.qll  | 28 +++++++------------
 .../aliased_ssa/Instruction.qll               | 12 ++++++--
 .../aliased_ssa/internal/SSAConstruction.qll  |  8 ++++--
 .../cpp/ir/implementation/raw/Instruction.qll | 12 ++++++--
 .../raw/internal/IRConstruction.qll           | 14 +++++++++-
 .../unaliased_ssa/Instruction.qll             | 12 ++++++--
 .../internal/SSAConstruction.qll              |  8 ++++--
 7 files changed, 65 insertions(+), 29 deletions(-)

diff --git a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
index 87045304da09..b470447788a8 100644
--- a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
+++ b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
@@ -7,7 +7,7 @@ import semmle.code.cpp.ir.IR
  */
 class GuardCondition extends Expr {
   GuardCondition() {
-    exists(IRGuardCondition ir | this = remove_conversions(ir.getAST()))
+    exists(IRGuardCondition ir | this = ir.getUnconvertedResultExpression())
     or
     // no binary operators in the IR
     exists(Instruction ir |
@@ -157,7 +157,7 @@ private class GuardConditionFromIR extends GuardCondition {
   IRGuardCondition ir;
   
   GuardConditionFromIR() {
-    this = remove_conversions(ir.getAST())
+    this = ir.getUnconvertedResultExpression()
   }
     override predicate controls(BasicBlock controlled, boolean testIsTrue) {
         /* This condition must determine the flow of control; that is, this
@@ -168,8 +168,8 @@ private class GuardConditionFromIR extends GuardCondition {
     /** Holds if (determined by this guard) `left < right + k` evaluates to `isLessThan` if this expression evaluates to `testIsTrue`. */
     override predicate comparesLt(Expr left, Expr right, int k, boolean isLessThan, boolean testIsTrue) {
       exists(Instruction li, Instruction ri |
-        remove_conversions(li.getAST()) = left and
-        remove_conversions(ri.getAST()) = right and
+        li.getUnconvertedResultExpression() = left and
+        ri.getUnconvertedResultExpression() = right and
         ir.comparesLt(li, ri, k, isLessThan, testIsTrue)
       )
     }
@@ -178,8 +178,8 @@ private class GuardConditionFromIR extends GuardCondition {
         If `isLessThan = false` then this implies `left >= right + k`.  */
     override predicate ensuresLt(Expr left, Expr right, int k, BasicBlock block, boolean isLessThan) {
       exists(Instruction li, Instruction ri, boolean testIsTrue |
-        remove_conversions(li.getAST()) = left and
-        remove_conversions(ri.getAST()) = right and
+        li.getUnconvertedResultExpression() = left and
+        ri.getUnconvertedResultExpression() = right and
         ir.comparesLt(li, ri, k, isLessThan, testIsTrue) and
         this.controls(block, testIsTrue)
       )
@@ -188,8 +188,8 @@ private class GuardConditionFromIR extends GuardCondition {
     /** Holds if (determined by this guard) `left == right + k` evaluates to `areEqual` if this expression evaluates to `testIsTrue`. */
     override predicate comparesEq(Expr left, Expr right, int k, boolean areEqual, boolean testIsTrue) {
       exists(Instruction li, Instruction ri |
-        remove_conversions(li.getAST()) = left and
-        remove_conversions(ri.getAST()) = right and
+        li.getUnconvertedResultExpression() = left and
+        ri.getUnconvertedResultExpression() = right and
         ir.comparesEq(li, ri, k, areEqual, testIsTrue)
       )
     }
@@ -198,8 +198,8 @@ private class GuardConditionFromIR extends GuardCondition {
         If `areEqual = false` then this implies `left != right + k`.  */
     override predicate ensuresEq(Expr left, Expr right, int k, BasicBlock block, boolean areEqual) {
         exists(Instruction li, Instruction ri, boolean testIsTrue |
-        remove_conversions(li.getAST()) = left and
-        remove_conversions(ri.getAST()) = right and
+        li.getUnconvertedResultExpression() = left and
+        ri.getUnconvertedResultExpression() = right and
         ir.comparesEq(li, ri, k, areEqual, testIsTrue)
         and this.controls(block, testIsTrue)
       )
@@ -482,11 +482,3 @@ private predicate add_eq(CompareInstruction cmp, Instruction left, Instruction r
 private int int_value(Instruction i) {
   result = i.(IntegerConstantInstruction).getValue().toInt()
 }
-
-/** Gets the underlying expression of `e`. */
-private Expr remove_conversions(Expr e) {
-  if e instanceof Conversion
-  then result = e.(Conversion).getExpr+() and
-       not result instanceof Conversion
-  else result = e
-}
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
index a9a9d8190e67..b00c479139d8 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
@@ -312,9 +312,17 @@ class Instruction extends Construction::TInstruction {
   /**
    * Gets the `Expr` whose results is computed by this instruction, if any.
    */
-  final Expr getResultExpression() {
-    result = Construction::getInstructionResultExpression(this) 
+  final Expr getConvertedResultExpression() {
+    result = Construction::getInstructionConvertedResultExpression(this) 
   }
+  
+    /**
+   * Gets the `Expr` whose results is computed by this instruction, if any.
+   */
+  final Expr getUnconvertedResultExpression() {
+    result = Construction::getInstructionUnconvertedResultExpression(this) 
+  }
+  
 
   /**
    * Gets the type of the result produced by this instruction. If the
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/SSAConstruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/SSAConstruction.qll
index f6e2034296d9..70af6ce64138 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/SSAConstruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/SSAConstruction.qll
@@ -197,8 +197,12 @@ cached private module Cached {
     )
   }
 
-  cached Expr getInstructionResultExpression(Instruction instruction) {
-    result = getOldInstruction(instruction).getResultExpression()
+  cached Expr getInstructionConvertedResultExpression(Instruction instruction) {
+    result = getOldInstruction(instruction).getConvertedResultExpression()
+  }
+
+  cached Expr getInstructionUnconvertedResultExpression(Instruction instruction) {
+    result = getOldInstruction(instruction).getUnconvertedResultExpression()
   }
 
   cached Instruction getInstructionSuccessor(Instruction instruction, EdgeKind kind) {
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
index a9a9d8190e67..b00c479139d8 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
@@ -312,9 +312,17 @@ class Instruction extends Construction::TInstruction {
   /**
    * Gets the `Expr` whose results is computed by this instruction, if any.
    */
-  final Expr getResultExpression() {
-    result = Construction::getInstructionResultExpression(this) 
+  final Expr getConvertedResultExpression() {
+    result = Construction::getInstructionConvertedResultExpression(this) 
   }
+  
+    /**
+   * Gets the `Expr` whose results is computed by this instruction, if any.
+   */
+  final Expr getUnconvertedResultExpression() {
+    result = Construction::getInstructionUnconvertedResultExpression(this) 
+  }
+  
 
   /**
    * Gets the type of the result produced by this instruction. If the
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/IRConstruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/IRConstruction.qll
index 306180e764ec..d8c14c0f9508 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/IRConstruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/IRConstruction.qll
@@ -74,13 +74,25 @@ cached private module Cached {
     none()
   }
 
-  cached Expr getInstructionResultExpression(Instruction instruction) {
+  cached Expr getInstructionConvertedResultExpression(Instruction instruction) {
     exists(TranslatedExpr translatedExpr |
       translatedExpr = getTranslatedExpr(result) and
       instruction = translatedExpr.getResult()
     )
   }
 
+  cached Expr getInstructionUnconvertedResultExpression(Instruction instruction) {
+    exists(Expr converted, TranslatedExpr translatedExpr |
+      result = converted.(Conversion).getExpr+()
+      or
+      result = converted
+      |
+      not result instanceof Conversion and
+      translatedExpr = getTranslatedExpr(converted) and
+      instruction = translatedExpr.getResult()
+    )
+  }
+  
   cached Instruction getInstructionOperand(Instruction instruction, OperandTag tag) {
     result = getInstructionTranslatedElement(instruction).getInstructionOperand(
       instruction.getTag(), tag)
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
index a9a9d8190e67..b00c479139d8 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
@@ -312,9 +312,17 @@ class Instruction extends Construction::TInstruction {
   /**
    * Gets the `Expr` whose results is computed by this instruction, if any.
    */
-  final Expr getResultExpression() {
-    result = Construction::getInstructionResultExpression(this) 
+  final Expr getConvertedResultExpression() {
+    result = Construction::getInstructionConvertedResultExpression(this) 
   }
+  
+    /**
+   * Gets the `Expr` whose results is computed by this instruction, if any.
+   */
+  final Expr getUnconvertedResultExpression() {
+    result = Construction::getInstructionUnconvertedResultExpression(this) 
+  }
+  
 
   /**
    * Gets the type of the result produced by this instruction. If the
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SSAConstruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SSAConstruction.qll
index f6e2034296d9..70af6ce64138 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SSAConstruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SSAConstruction.qll
@@ -197,8 +197,12 @@ cached private module Cached {
     )
   }
 
-  cached Expr getInstructionResultExpression(Instruction instruction) {
-    result = getOldInstruction(instruction).getResultExpression()
+  cached Expr getInstructionConvertedResultExpression(Instruction instruction) {
+    result = getOldInstruction(instruction).getConvertedResultExpression()
+  }
+
+  cached Expr getInstructionUnconvertedResultExpression(Instruction instruction) {
+    result = getOldInstruction(instruction).getUnconvertedResultExpression()
   }
 
   cached Instruction getInstructionSuccessor(Instruction instruction, EdgeKind kind) {

From e2d24a27438150ea977474feb5fccead2cfa41e6 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Thu, 20 Sep 2018 13:07:36 -0700
Subject: [PATCH 13/16] C++: fix comment

---
 .../code/cpp/ir/implementation/aliased_ssa/Instruction.qll    | 4 ++--
 .../src/semmle/code/cpp/ir/implementation/raw/Instruction.qll | 4 ++--
 .../code/cpp/ir/implementation/unaliased_ssa/Instruction.qll  | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
index b00c479139d8..bf1837298138 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
@@ -310,14 +310,14 @@ class Instruction extends Construction::TInstruction {
   }
 
   /**
-   * Gets the `Expr` whose results is computed by this instruction, if any.
+   * Gets the `Expr` whose result is computed by this instruction, if any.
    */
   final Expr getConvertedResultExpression() {
     result = Construction::getInstructionConvertedResultExpression(this) 
   }
   
     /**
-   * Gets the `Expr` whose results is computed by this instruction, if any.
+   * Gets the unconverted `Expr` whose result is computed by this instruction, if any.
    */
   final Expr getUnconvertedResultExpression() {
     result = Construction::getInstructionUnconvertedResultExpression(this) 
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
index b00c479139d8..bf1837298138 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
@@ -310,14 +310,14 @@ class Instruction extends Construction::TInstruction {
   }
 
   /**
-   * Gets the `Expr` whose results is computed by this instruction, if any.
+   * Gets the `Expr` whose result is computed by this instruction, if any.
    */
   final Expr getConvertedResultExpression() {
     result = Construction::getInstructionConvertedResultExpression(this) 
   }
   
     /**
-   * Gets the `Expr` whose results is computed by this instruction, if any.
+   * Gets the unconverted `Expr` whose result is computed by this instruction, if any.
    */
   final Expr getUnconvertedResultExpression() {
     result = Construction::getInstructionUnconvertedResultExpression(this) 
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
index b00c479139d8..bf1837298138 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
@@ -310,14 +310,14 @@ class Instruction extends Construction::TInstruction {
   }
 
   /**
-   * Gets the `Expr` whose results is computed by this instruction, if any.
+   * Gets the `Expr` whose result is computed by this instruction, if any.
    */
   final Expr getConvertedResultExpression() {
     result = Construction::getInstructionConvertedResultExpression(this) 
   }
   
     /**
-   * Gets the `Expr` whose results is computed by this instruction, if any.
+   * Gets the unconverted `Expr` whose result is computed by this instruction, if any.
    */
   final Expr getUnconvertedResultExpression() {
     result = Construction::getInstructionUnconvertedResultExpression(this) 

From f323fa1df86ac49cedffcbf179140e99de8ce124 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Thu, 27 Sep 2018 13:06:57 -0700
Subject: [PATCH 14/16] C++: test changes from previous commit

The IR for the conversion to bool results in a comparison where the left
hand side is not the result of any expression in the AST, so they can't
be usefully converted back to the AST
---
 .../controlflow/guards-ir/ASTGuardsCompare.expected             | 2 --
 .../controlflow/guards-ir/ASTGuardsEnsure.expected              | 1 -
 2 files changed, 3 deletions(-)

diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
index d786c284d473..58068f3991df 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
@@ -14,8 +14,6 @@
 | 17 | y < 1+1 when ... > ... is false |
 | 17 | y >= 1+1 when ... && ... is true |
 | 17 | y >= 1+1 when ... > ... is true |
-| 18 | call to get != call to get+0 when call to get is true |
-| 18 | call to get == call to get+0 when call to get is false |
 | 26 | 0 < x+0 when ... > ... is true |
 | 26 | 0 >= x+0 when ... > ... is false |
 | 26 | x < 0+1 when ... > ... is false |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
index 8eb3eb83e277..d6783e7fc3a8 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
@@ -154,7 +154,6 @@
 | test.c:109:9:109:23 | ... \|\| ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
 | test.c:109:19:109:23 | ... < ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | 0 | 0 | 113 | 113 |
 | test.c:109:19:109:23 | ... < ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
-| test.cpp:18:8:18:10 | call to get | test.cpp:18:8:18:10 | call to get | != | test.cpp:18:8:18:10 | call to get | 0 | 19 | 19 |
 | test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 34 | 34 |
 | test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |

From b6cc6a3b2372b0f500840d25f5edcde2dd508213 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Thu, 27 Sep 2018 13:09:15 -0700
Subject: [PATCH 15/16] C++: Fix BinaryLogicalOperators always being guards

---
 cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll          | 5 +++--
 .../library-tests/controlflow/guards-ir/ASTGuards.expected   | 3 +++
 .../controlflow/guards-ir/ASTGuardsControl.expected          | 4 ++++
 .../library-tests/controlflow/guards-ir/IRGuards.expected    | 2 ++
 .../controlflow/guards-ir/IRGuardsControl.expected           | 2 ++
 cpp/ql/test/library-tests/controlflow/guards-ir/test.c       | 5 +++++
 6 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
index b470447788a8..55d5d4d8a84c 100644
--- a/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
+++ b/cpp/ql/src/semmle/code/cpp/controlflow/IRGuards.qll
@@ -10,12 +10,13 @@ class GuardCondition extends Expr {
     exists(IRGuardCondition ir | this = ir.getUnconvertedResultExpression())
     or
     // no binary operators in the IR
-    exists(Instruction ir |
-      this.(BinaryLogicalOperation).getAnOperand().getFullyConverted() = ir.getAST()
+    exists(GuardCondition gc |
+      this.(BinaryLogicalOperation).getAnOperand()= gc
     )
     or
     // the IR short-circuits if(!x)
     (
+      // don't produce a guard condition for `y = !x` and other non-short-circuited cases
       not exists (Instruction inst | this.getFullyConverted() = inst.getAST()) and
       exists(IRGuardCondition ir | this.(NotExpr).getOperand() = ir.getAST())
     )
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
index b73e7064339e..71eddd209803 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
@@ -27,6 +27,9 @@
 | test.c:138:9:138:9 | i |
 | test.c:146:7:146:8 | ! ... |
 | test.c:146:8:146:8 | x |
+| test.c:152:10:152:10 | x |
+| test.c:152:10:152:15 | ... && ... |
+| test.c:152:15:152:15 | y |
 | test.cpp:18:8:18:10 | call to get |
 | test.cpp:31:7:31:13 | ... == ... |
 | test.cpp:42:13:42:20 | call to getABool |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
index d4a5295b8771..c05f37215fcc 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
@@ -82,6 +82,10 @@
 | test.c:138:9:138:9 | i | true | 138 | 139 |
 | test.c:146:7:146:8 | ! ... | true | 146 | 147 |
 | test.c:146:8:146:8 | x | false | 146 | 147 |
+| test.c:152:10:152:10 | x | true | 151 | 152 |
+| test.c:152:10:152:10 | x | true | 152 | 152 |
+| test.c:152:10:152:15 | ... && ... | true | 151 | 152 |
+| test.c:152:15:152:15 | y | true | 151 | 152 |
 | test.cpp:18:8:18:10 | call to get | true | 19 | 19 |
 | test.cpp:31:7:31:13 | ... == ... | false | 30 | 30 |
 | test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected
index 72892f0e0336..9720f46530de 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected
@@ -21,6 +21,8 @@
 | test.c:137:7:137:7 | 0 |
 | test.c:138:9:138:9 | i |
 | test.c:146:8:146:8 | x |
+| test.c:152:10:152:10 | x |
+| test.c:152:15:152:15 | y |
 | test.cpp:18:8:18:12 | (bool)... |
 | test.cpp:31:7:31:13 | ... == ... |
 | test.cpp:42:13:42:20 | call to getABool |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
index 3e8fbb42f1a1..3c96e1eaf84c 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
@@ -78,6 +78,8 @@
 | test.c:137:7:137:7 | 0 | true | 139 | 139 |
 | test.c:138:9:138:9 | i | true | 139 | 139 |
 | test.c:146:8:146:8 | x | false | 147 | 147 |
+| test.c:152:10:152:10 | x | true | 152 | 152 |
+| test.c:152:15:152:15 | y | true | 152 | 152 |
 | test.cpp:18:8:18:12 | (bool)... | true | 0 | 0 |
 | test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
 | test.cpp:31:7:31:13 | ... == ... | true | 30 | 30 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/test.c b/cpp/ql/test/library-tests/controlflow/guards-ir/test.c
index 186244d4fca2..384d265440fb 100644
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/test.c
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/test.c
@@ -147,3 +147,8 @@ void test5(int x) {
     test3();
   }
 }
+
+void test6(int x, int y) {
+  return x && y;
+}
+

From 93732d8b5a8e5964c823a61937e17cbfc4d17842 Mon Sep 17 00:00:00 2001
From: Robert Marsh <rdmarsh@semmle.com>
Date: Thu, 27 Sep 2018 13:53:02 -0700
Subject: [PATCH 16/16] C++: Combine IR guard tests into one ql file

This is motivated by test performance; IR compilation happens separately
for each test and takes a bit over a minute, so combining these 8 tests
saves about 10 minutes of test running.
---
 .../controlflow/guards-ir/ASTGuards.expected  |  35 -
 .../controlflow/guards-ir/ASTGuards.ql        |   5 -
 .../guards-ir/ASTGuardsCompare.expected       |  88 ---
 .../controlflow/guards-ir/ASTGuardsCompare.ql |  25 -
 .../guards-ir/ASTGuardsControl.expected       |  95 ---
 .../controlflow/guards-ir/ASTGuardsControl.ql |  17 -
 .../guards-ir/ASTGuardsEnsure.expected        | 164 ----
 .../controlflow/guards-ir/ASTGuardsEnsure.ql  |  23 -
 .../controlflow/guards-ir/IRGuards.expected   |  28 -
 .../controlflow/guards-ir/IRGuards.ql         |   5 -
 .../guards-ir/IRGuardsCompare.expected        | 104 ---
 .../controlflow/guards-ir/IRGuardsCompare.ql  |  30 -
 .../guards-ir/IRGuardsControl.expected        |  88 ---
 .../controlflow/guards-ir/IRGuardsControl.ql  |  16 -
 .../guards-ir/IRGuardsEnsure.expected         | 152 ----
 .../controlflow/guards-ir/IRGuardsEnsure.ql   |  23 -
 .../controlflow/guards-ir/tests.expected      | 730 ++++++++++++++++++
 .../controlflow/guards-ir/tests.ql            |  91 +++
 18 files changed, 821 insertions(+), 898 deletions(-)
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.ql
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.ql
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.ql
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.ql
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.ql
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.expected
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.ql
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.ql
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.expected
 delete mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.ql
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/tests.expected
 create mode 100644 cpp/ql/test/library-tests/controlflow/guards-ir/tests.ql

diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
deleted file mode 100644
index 71eddd209803..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.expected
+++ /dev/null
@@ -1,35 +0,0 @@
-| test.c:7:9:7:13 | ... > ... |
-| test.c:17:8:17:12 | ... < ... |
-| test.c:17:8:17:21 | ... && ... |
-| test.c:17:17:17:21 | ... > ... |
-| test.c:26:11:26:15 | ... > ... |
-| test.c:34:16:34:21 | ... < ... |
-| test.c:42:16:42:21 | ... < ... |
-| test.c:44:12:44:16 | ... > ... |
-| test.c:45:16:45:20 | ... > ... |
-| test.c:58:9:58:14 | ... == ... |
-| test.c:58:9:58:23 | ... \|\| ... |
-| test.c:58:19:58:23 | ... < ... |
-| test.c:75:9:75:14 | ... == ... |
-| test.c:85:8:85:13 | ... == ... |
-| test.c:85:8:85:23 | ... && ... |
-| test.c:85:18:85:23 | ... != ... |
-| test.c:94:11:94:16 | ... != ... |
-| test.c:102:16:102:21 | ... < ... |
-| test.c:109:9:109:14 | ... == ... |
-| test.c:109:9:109:23 | ... \|\| ... |
-| test.c:109:19:109:23 | ... < ... |
-| test.c:126:7:126:7 | 1 |
-| test.c:126:7:126:28 | ... && ... |
-| test.c:126:12:126:26 | call to test3_condition |
-| test.c:131:7:131:7 | b |
-| test.c:137:7:137:7 | 0 |
-| test.c:138:9:138:9 | i |
-| test.c:146:7:146:8 | ! ... |
-| test.c:146:8:146:8 | x |
-| test.c:152:10:152:10 | x |
-| test.c:152:10:152:15 | ... && ... |
-| test.c:152:15:152:15 | y |
-| test.cpp:18:8:18:10 | call to get |
-| test.cpp:31:7:31:13 | ... == ... |
-| test.cpp:42:13:42:20 | call to getABool |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.ql
deleted file mode 100644
index 3c8e19bee412..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuards.ql
+++ /dev/null
@@ -1,5 +0,0 @@
-import cpp
-import semmle.code.cpp.controlflow.IRGuards
-
-from GuardCondition guard
-select guard
\ No newline at end of file
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
deleted file mode 100644
index 58068f3991df..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.expected
+++ /dev/null
@@ -1,88 +0,0 @@
-| 7 | 0 < x+0 when ... > ... is true |
-| 7 | 0 >= x+0 when ... > ... is false |
-| 7 | x < 0+1 when ... > ... is false |
-| 7 | x >= 0+1 when ... > ... is true |
-| 17 | 0 < x+1 when ... < ... is false |
-| 17 | 0 >= x+1 when ... && ... is true |
-| 17 | 0 >= x+1 when ... < ... is true |
-| 17 | 1 < y+0 when ... && ... is true |
-| 17 | 1 < y+0 when ... > ... is true |
-| 17 | 1 >= y+0 when ... > ... is false |
-| 17 | x < 0+0 when ... && ... is true |
-| 17 | x < 0+0 when ... < ... is true |
-| 17 | x >= 0+0 when ... < ... is false |
-| 17 | y < 1+1 when ... > ... is false |
-| 17 | y >= 1+1 when ... && ... is true |
-| 17 | y >= 1+1 when ... > ... is true |
-| 26 | 0 < x+0 when ... > ... is true |
-| 26 | 0 >= x+0 when ... > ... is false |
-| 26 | x < 0+1 when ... > ... is false |
-| 26 | x >= 0+1 when ... > ... is true |
-| 31 | - ... != x+0 when ... == ... is false |
-| 31 | - ... == x+0 when ... == ... is true |
-| 31 | x != - ...+0 when ... == ... is false |
-| 31 | x == - ...+0 when ... == ... is true |
-| 34 | 10 < j+1 when ... < ... is false |
-| 34 | 10 >= j+1 when ... < ... is true |
-| 34 | j < 10+0 when ... < ... is true |
-| 34 | j >= 10+0 when ... < ... is false |
-| 42 | 10 < j+1 when ... < ... is false |
-| 42 | 10 >= j+1 when ... < ... is true |
-| 42 | j < 10+0 when ... < ... is true |
-| 42 | j >= 10+0 when ... < ... is false |
-| 44 | 0 < z+0 when ... > ... is true |
-| 44 | 0 >= z+0 when ... > ... is false |
-| 44 | z < 0+1 when ... > ... is false |
-| 44 | z >= 0+1 when ... > ... is true |
-| 45 | 0 < y+0 when ... > ... is true |
-| 45 | 0 >= y+0 when ... > ... is false |
-| 45 | y < 0+1 when ... > ... is false |
-| 45 | y >= 0+1 when ... > ... is true |
-| 58 | 0 != x+0 when ... == ... is false |
-| 58 | 0 != x+0 when ... \|\| ... is false |
-| 58 | 0 < y+1 when ... < ... is false |
-| 58 | 0 < y+1 when ... \|\| ... is false |
-| 58 | 0 == x+0 when ... == ... is true |
-| 58 | 0 >= y+1 when ... < ... is true |
-| 58 | x != 0+0 when ... == ... is false |
-| 58 | x != 0+0 when ... \|\| ... is false |
-| 58 | x == 0+0 when ... == ... is true |
-| 58 | y < 0+0 when ... < ... is true |
-| 58 | y >= 0+0 when ... < ... is false |
-| 58 | y >= 0+0 when ... \|\| ... is false |
-| 75 | 0 != x+0 when ... == ... is false |
-| 75 | 0 == x+0 when ... == ... is true |
-| 75 | x != 0+0 when ... == ... is false |
-| 75 | x == 0+0 when ... == ... is true |
-| 85 | 0 != x+0 when ... == ... is false |
-| 85 | 0 != y+0 when ... != ... is true |
-| 85 | 0 != y+0 when ... && ... is true |
-| 85 | 0 == x+0 when ... && ... is true |
-| 85 | 0 == x+0 when ... == ... is true |
-| 85 | 0 == y+0 when ... != ... is false |
-| 85 | x != 0+0 when ... == ... is false |
-| 85 | x == 0+0 when ... && ... is true |
-| 85 | x == 0+0 when ... == ... is true |
-| 85 | y != 0+0 when ... != ... is true |
-| 85 | y != 0+0 when ... && ... is true |
-| 85 | y == 0+0 when ... != ... is false |
-| 94 | 0 != x+0 when ... != ... is true |
-| 94 | 0 == x+0 when ... != ... is false |
-| 94 | x != 0+0 when ... != ... is true |
-| 94 | x == 0+0 when ... != ... is false |
-| 102 | 10 < j+1 when ... < ... is false |
-| 102 | 10 >= j+1 when ... < ... is true |
-| 102 | j < 10+0 when ... < ... is true |
-| 102 | j >= 10+0 when ... < ... is false |
-| 109 | 0 != x+0 when ... == ... is false |
-| 109 | 0 != x+0 when ... \|\| ... is false |
-| 109 | 0 < y+1 when ... < ... is false |
-| 109 | 0 < y+1 when ... \|\| ... is false |
-| 109 | 0 == x+0 when ... == ... is true |
-| 109 | 0 >= y+1 when ... < ... is true |
-| 109 | x != 0+0 when ... == ... is false |
-| 109 | x != 0+0 when ... \|\| ... is false |
-| 109 | x == 0+0 when ... == ... is true |
-| 109 | y < 0+0 when ... < ... is true |
-| 109 | y >= 0+0 when ... < ... is false |
-| 109 | y >= 0+0 when ... \|\| ... is false |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.ql
deleted file mode 100644
index e51e5df741a6..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsCompare.ql
+++ /dev/null
@@ -1,25 +0,0 @@
-/**
- * @name Guards comparison test
- * @description List comparison parts.
- * @kind test
- */
-
-import cpp
-import semmle.code.cpp.controlflow.IRGuards
-
-
-from GuardCondition guard, Expr left, Expr right, int k, string which, string op, string msg
-where 
-(exists(boolean sense | sense = true and which = "true" or sense = false and which = "false" |
-    guard.comparesLt(left, right, k, true, sense) and op = " < "
-    or
-    guard.comparesLt(left, right, k, false, sense) and op = " >= "
-    or
-    guard.comparesEq(left, right, k, true, sense) and op = " == "
-    or 
-    guard.comparesEq(left, right, k, false, sense)  and op = " != "
- )
-)
-and msg = left + op + right + "+" + k + " when " + guard + " is " + which
-
-select guard.getLocation().getStartLine(), msg
\ No newline at end of file
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
deleted file mode 100644
index c05f37215fcc..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.expected
+++ /dev/null
@@ -1,95 +0,0 @@
-| test.c:7:9:7:13 | ... > ... | false | 10 | 11 |
-| test.c:7:9:7:13 | ... > ... | true | 7 | 9 |
-| test.c:17:8:17:12 | ... < ... | true | 17 | 17 |
-| test.c:17:8:17:12 | ... < ... | true | 18 | 18 |
-| test.c:17:8:17:21 | ... && ... | true | 18 | 18 |
-| test.c:17:17:17:21 | ... > ... | true | 18 | 18 |
-| test.c:26:11:26:15 | ... > ... | false | 2 | 2 |
-| test.c:26:11:26:15 | ... > ... | false | 31 | 34 |
-| test.c:26:11:26:15 | ... > ... | false | 34 | 34 |
-| test.c:26:11:26:15 | ... > ... | false | 39 | 42 |
-| test.c:26:11:26:15 | ... > ... | false | 42 | 42 |
-| test.c:26:11:26:15 | ... > ... | false | 42 | 44 |
-| test.c:26:11:26:15 | ... > ... | false | 45 | 45 |
-| test.c:26:11:26:15 | ... > ... | false | 45 | 47 |
-| test.c:26:11:26:15 | ... > ... | false | 48 | 55 |
-| test.c:26:11:26:15 | ... > ... | false | 51 | 53 |
-| test.c:26:11:26:15 | ... > ... | false | 56 | 58 |
-| test.c:26:11:26:15 | ... > ... | false | 58 | 58 |
-| test.c:26:11:26:15 | ... > ... | false | 58 | 66 |
-| test.c:26:11:26:15 | ... > ... | false | 62 | 62 |
-| test.c:26:11:26:15 | ... > ... | true | 26 | 28 |
-| test.c:34:16:34:21 | ... < ... | false | 2 | 2 |
-| test.c:34:16:34:21 | ... < ... | false | 39 | 42 |
-| test.c:34:16:34:21 | ... < ... | false | 42 | 42 |
-| test.c:34:16:34:21 | ... < ... | false | 42 | 44 |
-| test.c:34:16:34:21 | ... < ... | false | 45 | 45 |
-| test.c:34:16:34:21 | ... < ... | false | 45 | 47 |
-| test.c:34:16:34:21 | ... < ... | false | 48 | 55 |
-| test.c:34:16:34:21 | ... < ... | false | 51 | 53 |
-| test.c:34:16:34:21 | ... < ... | false | 56 | 58 |
-| test.c:34:16:34:21 | ... < ... | false | 58 | 58 |
-| test.c:34:16:34:21 | ... < ... | false | 58 | 66 |
-| test.c:34:16:34:21 | ... < ... | false | 62 | 62 |
-| test.c:34:16:34:21 | ... < ... | true | 34 | 34 |
-| test.c:42:16:42:21 | ... < ... | true | 42 | 42 |
-| test.c:42:16:42:21 | ... < ... | true | 42 | 44 |
-| test.c:42:16:42:21 | ... < ... | true | 45 | 45 |
-| test.c:42:16:42:21 | ... < ... | true | 45 | 47 |
-| test.c:42:16:42:21 | ... < ... | true | 48 | 55 |
-| test.c:42:16:42:21 | ... < ... | true | 51 | 53 |
-| test.c:44:12:44:16 | ... > ... | false | 51 | 53 |
-| test.c:44:12:44:16 | ... > ... | true | 45 | 45 |
-| test.c:44:12:44:16 | ... > ... | true | 45 | 47 |
-| test.c:44:12:44:16 | ... > ... | true | 48 | 55 |
-| test.c:45:16:45:20 | ... > ... | false | 48 | 55 |
-| test.c:45:16:45:20 | ... > ... | true | 45 | 47 |
-| test.c:58:9:58:14 | ... == ... | false | 58 | 58 |
-| test.c:58:9:58:14 | ... == ... | false | 62 | 62 |
-| test.c:58:9:58:23 | ... \|\| ... | false | 62 | 62 |
-| test.c:58:19:58:23 | ... < ... | false | 62 | 62 |
-| test.c:75:9:75:14 | ... == ... | false | 78 | 79 |
-| test.c:75:9:75:14 | ... == ... | true | 75 | 77 |
-| test.c:85:8:85:13 | ... == ... | true | 85 | 85 |
-| test.c:85:8:85:13 | ... == ... | true | 86 | 86 |
-| test.c:85:8:85:23 | ... && ... | true | 86 | 86 |
-| test.c:85:18:85:23 | ... != ... | true | 86 | 86 |
-| test.c:94:11:94:16 | ... != ... | false | 70 | 70 |
-| test.c:94:11:94:16 | ... != ... | false | 99 | 102 |
-| test.c:94:11:94:16 | ... != ... | false | 102 | 102 |
-| test.c:94:11:94:16 | ... != ... | false | 107 | 109 |
-| test.c:94:11:94:16 | ... != ... | false | 109 | 109 |
-| test.c:94:11:94:16 | ... != ... | false | 109 | 117 |
-| test.c:94:11:94:16 | ... != ... | false | 113 | 113 |
-| test.c:94:11:94:16 | ... != ... | true | 94 | 96 |
-| test.c:102:16:102:21 | ... < ... | false | 70 | 70 |
-| test.c:102:16:102:21 | ... < ... | false | 107 | 109 |
-| test.c:102:16:102:21 | ... < ... | false | 109 | 109 |
-| test.c:102:16:102:21 | ... < ... | false | 109 | 117 |
-| test.c:102:16:102:21 | ... < ... | false | 113 | 113 |
-| test.c:102:16:102:21 | ... < ... | true | 102 | 102 |
-| test.c:109:9:109:14 | ... == ... | false | 109 | 109 |
-| test.c:109:9:109:14 | ... == ... | false | 113 | 113 |
-| test.c:109:9:109:23 | ... \|\| ... | false | 113 | 113 |
-| test.c:109:19:109:23 | ... < ... | false | 113 | 113 |
-| test.c:126:7:126:7 | 1 | true | 126 | 126 |
-| test.c:126:7:126:7 | 1 | true | 126 | 128 |
-| test.c:126:7:126:28 | ... && ... | true | 126 | 128 |
-| test.c:126:12:126:26 | call to test3_condition | true | 126 | 128 |
-| test.c:131:7:131:7 | b | true | 131 | 132 |
-| test.c:137:7:137:7 | 0 | true | 137 | 138 |
-| test.c:137:7:137:7 | 0 | true | 138 | 139 |
-| test.c:138:9:138:9 | i | true | 138 | 139 |
-| test.c:146:7:146:8 | ! ... | true | 146 | 147 |
-| test.c:146:8:146:8 | x | false | 146 | 147 |
-| test.c:152:10:152:10 | x | true | 151 | 152 |
-| test.c:152:10:152:10 | x | true | 152 | 152 |
-| test.c:152:10:152:15 | ... && ... | true | 151 | 152 |
-| test.c:152:15:152:15 | y | true | 151 | 152 |
-| test.cpp:18:8:18:10 | call to get | true | 19 | 19 |
-| test.cpp:31:7:31:13 | ... == ... | false | 30 | 30 |
-| test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
-| test.cpp:31:7:31:13 | ... == ... | true | 30 | 30 |
-| test.cpp:31:7:31:13 | ... == ... | true | 31 | 32 |
-| test.cpp:42:13:42:20 | call to getABool | false | 53 | 53 |
-| test.cpp:42:13:42:20 | call to getABool | true | 43 | 45 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.ql
deleted file mode 100644
index 63456cc1f572..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsControl.ql
+++ /dev/null
@@ -1,17 +0,0 @@
-/**
- * @name Guards control test
- * @description List which guards control which blocks
- * @kind test
- */
-
-import cpp
-import semmle.code.cpp.controlflow.IRGuards
-
-
-from GuardCondition guard, boolean sense, int start, int end
-where 
-exists(BasicBlock block |
-       guard.controls(block, sense) and
-       block.hasLocationInfo(_, start, _, end, _)
-)
-select guard, sense, start, end
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
deleted file mode 100644
index d6783e7fc3a8..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.expected
+++ /dev/null
@@ -1,164 +0,0 @@
-| test.c:7:9:7:13 | ... > ... | test.c:7:9:7:9 | x | < | test.c:7:13:7:13 | 0 | 1 | 10 | 11 |
-| test.c:7:9:7:13 | ... > ... | test.c:7:9:7:9 | x | >= | test.c:7:13:7:13 | 0 | 1 | 7 | 9 |
-| test.c:7:9:7:13 | ... > ... | test.c:7:13:7:13 | 0 | < | test.c:7:9:7:9 | x | 0 | 7 | 9 |
-| test.c:7:9:7:13 | ... > ... | test.c:7:13:7:13 | 0 | >= | test.c:7:9:7:9 | x | 0 | 10 | 11 |
-| test.c:17:8:17:12 | ... < ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 17 | 17 |
-| test.c:17:8:17:12 | ... < ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 18 | 18 |
-| test.c:17:8:17:12 | ... < ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 17 | 17 |
-| test.c:17:8:17:12 | ... < ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 18 | 18 |
-| test.c:17:8:17:21 | ... && ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 18 | 18 |
-| test.c:17:8:17:21 | ... && ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 18 | 18 |
-| test.c:17:8:17:21 | ... && ... | test.c:17:17:17:17 | y | >= | test.c:17:21:17:21 | 1 | 1 | 18 | 18 |
-| test.c:17:8:17:21 | ... && ... | test.c:17:21:17:21 | 1 | < | test.c:17:17:17:17 | y | 0 | 18 | 18 |
-| test.c:17:17:17:21 | ... > ... | test.c:17:17:17:17 | y | >= | test.c:17:21:17:21 | 1 | 1 | 18 | 18 |
-| test.c:17:17:17:21 | ... > ... | test.c:17:21:17:21 | 1 | < | test.c:17:17:17:17 | y | 0 | 18 | 18 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 2 | 2 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 31 | 34 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 34 | 34 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 39 | 42 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 42 | 42 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 42 | 44 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 45 | 45 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 45 | 47 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 48 | 55 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 51 | 53 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 56 | 58 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 58 | 58 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 58 | 66 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 62 | 62 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | >= | test.c:26:15:26:15 | 0 | 1 | 26 | 28 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | < | test.c:26:11:26:11 | x | 0 | 26 | 28 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 2 | 2 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 31 | 34 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 34 | 34 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 39 | 42 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 42 | 42 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 42 | 44 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 45 | 45 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 45 | 47 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 48 | 55 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 51 | 53 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 56 | 58 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 58 | 58 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 58 | 66 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 62 | 62 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | < | test.c:34:20:34:21 | 10 | 0 | 34 | 34 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 2 | 2 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 39 | 42 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 42 | 42 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 42 | 44 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 45 | 45 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 45 | 47 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 48 | 55 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 51 | 53 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 56 | 58 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 58 | 58 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 58 | 66 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 62 | 62 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 2 | 2 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 39 | 42 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 42 | 42 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 42 | 44 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 45 | 45 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 45 | 47 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 48 | 55 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 51 | 53 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 56 | 58 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 58 | 58 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 58 | 66 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 62 | 62 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | >= | test.c:34:16:34:16 | j | 1 | 34 | 34 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 42 | 42 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 42 | 44 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 45 | 45 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 45 | 47 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 48 | 55 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 51 | 53 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 42 | 42 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 42 | 44 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 45 | 45 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 45 | 47 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 48 | 55 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 51 | 53 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | < | test.c:44:16:44:16 | 0 | 1 | 51 | 53 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 45 | 45 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 45 | 47 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 48 | 55 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 45 | 45 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 45 | 47 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 48 | 55 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | >= | test.c:44:12:44:12 | z | 0 | 51 | 53 |
-| test.c:45:16:45:20 | ... > ... | test.c:45:16:45:16 | y | < | test.c:45:20:45:20 | 0 | 1 | 48 | 55 |
-| test.c:45:16:45:20 | ... > ... | test.c:45:16:45:16 | y | >= | test.c:45:20:45:20 | 0 | 1 | 45 | 47 |
-| test.c:45:16:45:20 | ... > ... | test.c:45:20:45:20 | 0 | < | test.c:45:16:45:16 | y | 0 | 45 | 47 |
-| test.c:45:16:45:20 | ... > ... | test.c:45:20:45:20 | 0 | >= | test.c:45:16:45:16 | y | 0 | 48 | 55 |
-| test.c:58:9:58:14 | ... == ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 58 | 58 |
-| test.c:58:9:58:14 | ... == ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 62 | 62 |
-| test.c:58:9:58:14 | ... == ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 58 | 58 |
-| test.c:58:9:58:14 | ... == ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 62 | 62 |
-| test.c:58:9:58:23 | ... \|\| ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 62 | 62 |
-| test.c:58:9:58:23 | ... \|\| ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 62 | 62 |
-| test.c:58:9:58:23 | ... \|\| ... | test.c:58:19:58:19 | y | >= | test.c:58:23:58:23 | 0 | 0 | 62 | 62 |
-| test.c:58:9:58:23 | ... \|\| ... | test.c:58:23:58:23 | 0 | < | test.c:58:19:58:19 | y | 1 | 62 | 62 |
-| test.c:58:19:58:23 | ... < ... | test.c:58:19:58:19 | y | >= | test.c:58:23:58:23 | 0 | 0 | 62 | 62 |
-| test.c:58:19:58:23 | ... < ... | test.c:58:23:58:23 | 0 | < | test.c:58:19:58:19 | y | 1 | 62 | 62 |
-| test.c:75:9:75:14 | ... == ... | test.c:75:9:75:9 | x | != | test.c:75:14:75:14 | 0 | 0 | 78 | 79 |
-| test.c:75:9:75:14 | ... == ... | test.c:75:9:75:9 | x | == | test.c:75:14:75:14 | 0 | 0 | 75 | 77 |
-| test.c:75:9:75:14 | ... == ... | test.c:75:14:75:14 | 0 | != | test.c:75:9:75:9 | x | 0 | 78 | 79 |
-| test.c:75:9:75:14 | ... == ... | test.c:75:14:75:14 | 0 | == | test.c:75:9:75:9 | x | 0 | 75 | 77 |
-| test.c:85:8:85:13 | ... == ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 85 | 85 |
-| test.c:85:8:85:13 | ... == ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 86 | 86 |
-| test.c:85:8:85:13 | ... == ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 85 | 85 |
-| test.c:85:8:85:13 | ... == ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 86 | 86 |
-| test.c:85:8:85:23 | ... && ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 86 | 86 |
-| test.c:85:8:85:23 | ... && ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 86 | 86 |
-| test.c:85:8:85:23 | ... && ... | test.c:85:18:85:18 | y | != | test.c:85:23:85:23 | 0 | 0 | 86 | 86 |
-| test.c:85:8:85:23 | ... && ... | test.c:85:23:85:23 | 0 | != | test.c:85:18:85:18 | y | 0 | 86 | 86 |
-| test.c:85:18:85:23 | ... != ... | test.c:85:18:85:18 | y | != | test.c:85:23:85:23 | 0 | 0 | 86 | 86 |
-| test.c:85:18:85:23 | ... != ... | test.c:85:23:85:23 | 0 | != | test.c:85:18:85:18 | y | 0 | 86 | 86 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | != | test.c:94:16:94:16 | 0 | 0 | 94 | 96 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 70 | 70 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 99 | 102 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 102 | 102 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 107 | 109 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 109 | 109 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 109 | 117 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 113 | 113 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | != | test.c:94:11:94:11 | x | 0 | 94 | 96 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 70 | 70 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 99 | 102 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 102 | 102 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 107 | 109 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 109 | 109 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 109 | 117 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 113 | 113 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | < | test.c:102:20:102:21 | 10 | 0 | 102 | 102 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 70 | 70 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 107 | 109 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 109 | 109 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 109 | 117 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 113 | 113 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 70 | 70 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 107 | 109 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 109 | 109 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 109 | 117 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 113 | 113 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | >= | test.c:102:16:102:16 | j | 1 | 102 | 102 |
-| test.c:109:9:109:14 | ... == ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 109 | 109 |
-| test.c:109:9:109:14 | ... == ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 113 | 113 |
-| test.c:109:9:109:14 | ... == ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 109 | 109 |
-| test.c:109:9:109:14 | ... == ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 113 | 113 |
-| test.c:109:9:109:23 | ... \|\| ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 113 | 113 |
-| test.c:109:9:109:23 | ... \|\| ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 113 | 113 |
-| test.c:109:9:109:23 | ... \|\| ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | 0 | 0 | 113 | 113 |
-| test.c:109:9:109:23 | ... \|\| ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
-| test.c:109:19:109:23 | ... < ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | 0 | 0 | 113 | 113 |
-| test.c:109:19:109:23 | ... < ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 34 | 34 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 31 | 32 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | != | test.cpp:31:7:31:7 | x | 0 | 30 | 30 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | != | test.cpp:31:7:31:7 | x | 0 | 34 | 34 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 30 | 30 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 31 | 32 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.ql
deleted file mode 100644
index 85e5f8376f0e..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/ASTGuardsEnsure.ql
+++ /dev/null
@@ -1,23 +0,0 @@
-/**
- * @name Guards control test
- * @description List which guards ensure which inequalities apply to which blocks
- * @kind test
- */
-
-import cpp
-import semmle.code.cpp.controlflow.IRGuards
-
-
-from GuardCondition guard, Expr left, Expr right, int k, int start, int end, string op
-where 
-exists(BasicBlock block |
-       guard.ensuresLt(left, right, k, block, true) and op = "<"
-       or
-       guard.ensuresLt(left, right, k, block, false) and op = ">=" 
-        or
-       guard.ensuresEq(left, right, k, block, true) and op = "=="
-       or
-       guard.ensuresEq(left, right, k, block, false) and op = "!=" |
-       block.hasLocationInfo(_, start, _, end, _)
-)
-select guard, left, op, right, k, start, end
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected
deleted file mode 100644
index 9720f46530de..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.expected
+++ /dev/null
@@ -1,28 +0,0 @@
-| test.c:7:9:7:13 | ... > ... |
-| test.c:17:8:17:12 | ... < ... |
-| test.c:17:17:17:21 | ... > ... |
-| test.c:26:11:26:15 | ... > ... |
-| test.c:34:16:34:21 | ... < ... |
-| test.c:42:16:42:21 | ... < ... |
-| test.c:44:12:44:16 | ... > ... |
-| test.c:45:16:45:20 | ... > ... |
-| test.c:58:9:58:14 | ... == ... |
-| test.c:58:19:58:23 | ... < ... |
-| test.c:75:9:75:14 | ... == ... |
-| test.c:85:8:85:13 | ... == ... |
-| test.c:85:18:85:23 | ... != ... |
-| test.c:94:11:94:16 | ... != ... |
-| test.c:102:16:102:21 | ... < ... |
-| test.c:109:9:109:14 | ... == ... |
-| test.c:109:19:109:23 | ... < ... |
-| test.c:126:7:126:7 | 1 |
-| test.c:126:12:126:26 | call to test3_condition |
-| test.c:131:7:131:7 | b |
-| test.c:137:7:137:7 | 0 |
-| test.c:138:9:138:9 | i |
-| test.c:146:8:146:8 | x |
-| test.c:152:10:152:10 | x |
-| test.c:152:15:152:15 | y |
-| test.cpp:18:8:18:12 | (bool)... |
-| test.cpp:31:7:31:13 | ... == ... |
-| test.cpp:42:13:42:20 | call to getABool |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.ql
deleted file mode 100644
index 9560c9dc79ca..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuards.ql
+++ /dev/null
@@ -1,5 +0,0 @@
-import cpp
-import semmle.code.cpp.controlflow.IRGuards
-
-from IRGuardCondition guard
-select guard.getAST()
\ No newline at end of file
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.expected
deleted file mode 100644
index d118b0463076..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.expected
+++ /dev/null
@@ -1,104 +0,0 @@
-| 7 | 0 < x+0 when ... > ... is true |
-| 7 | 0 >= x+0 when ... > ... is false |
-| 7 | x < 0+1 when ... > ... is false |
-| 7 | x >= 0+1 when ... > ... is true |
-| 17 | 0 < x+1 when ... < ... is false |
-| 17 | 0 >= x+1 when ... < ... is true |
-| 17 | 1 < y+0 when ... > ... is true |
-| 17 | 1 >= y+0 when ... > ... is false |
-| 17 | (long)... < y+0 when ... > ... is true |
-| 17 | (long)... >= y+0 when ... > ... is false |
-| 17 | x < 0+0 when ... < ... is true |
-| 17 | x >= 0+0 when ... < ... is false |
-| 17 | y < 1+1 when ... > ... is false |
-| 17 | y < (long)...+1 when ... > ... is false |
-| 17 | y >= 1+1 when ... > ... is true |
-| 17 | y >= (long)...+1 when ... > ... is true |
-| 18 | (bool)... != call to get+0 when (bool)... is true |
-| 18 | (bool)... != call to get+0 when call to get is true |
-| 18 | (bool)... == call to get+0 when (bool)... is false |
-| 18 | (bool)... == call to get+0 when call to get is false |
-| 18 | call to get != (bool)...+0 when (bool)... is true |
-| 18 | call to get != (bool)...+0 when call to get is true |
-| 18 | call to get != call to get+0 when (bool)... is true |
-| 18 | call to get != call to get+0 when call to get is true |
-| 18 | call to get == (bool)...+0 when (bool)... is false |
-| 18 | call to get == (bool)...+0 when call to get is false |
-| 18 | call to get == call to get+0 when (bool)... is false |
-| 18 | call to get == call to get+0 when call to get is false |
-| 26 | 0 < x+0 when ... > ... is true |
-| 26 | 0 >= x+0 when ... > ... is false |
-| 26 | x < 0+1 when ... > ... is false |
-| 26 | x >= 0+1 when ... > ... is true |
-| 31 | - ... != x+0 when ... == ... is false |
-| 31 | - ... == x+0 when ... == ... is true |
-| 31 | x != - ...+0 when ... == ... is false |
-| 31 | x == - ...+0 when ... == ... is true |
-| 34 | 10 < j+1 when ... < ... is false |
-| 34 | 10 >= j+1 when ... < ... is true |
-| 34 | j < 10+0 when ... < ... is true |
-| 34 | j >= 10+0 when ... < ... is false |
-| 42 | 10 < j+1 when ... < ... is false |
-| 42 | 10 >= j+1 when ... < ... is true |
-| 42 | j < 10+0 when ... < ... is true |
-| 42 | j >= 10+0 when ... < ... is false |
-| 44 | 0 < z+0 when ... > ... is true |
-| 44 | 0 >= z+0 when ... > ... is false |
-| 44 | z < 0+1 when ... > ... is false |
-| 44 | z >= 0+1 when ... > ... is true |
-| 45 | 0 < y+0 when ... > ... is true |
-| 45 | 0 >= y+0 when ... > ... is false |
-| 45 | (long)... < y+0 when ... > ... is true |
-| 45 | (long)... >= y+0 when ... > ... is false |
-| 45 | y < 0+1 when ... > ... is false |
-| 45 | y < (long)...+1 when ... > ... is false |
-| 45 | y >= 0+1 when ... > ... is true |
-| 45 | y >= (long)...+1 when ... > ... is true |
-| 58 | 0 != x+0 when ... == ... is false |
-| 58 | 0 < y+1 when ... < ... is false |
-| 58 | 0 == x+0 when ... == ... is true |
-| 58 | 0 >= y+1 when ... < ... is true |
-| 58 | (long)... < y+1 when ... < ... is false |
-| 58 | (long)... >= y+1 when ... < ... is true |
-| 58 | x != 0+0 when ... == ... is false |
-| 58 | x == 0+0 when ... == ... is true |
-| 58 | y < 0+0 when ... < ... is true |
-| 58 | y < (long)...+0 when ... < ... is true |
-| 58 | y >= 0+0 when ... < ... is false |
-| 58 | y >= (long)...+0 when ... < ... is false |
-| 75 | 0 != x+0 when ... == ... is false |
-| 75 | 0 == x+0 when ... == ... is true |
-| 75 | x != 0+0 when ... == ... is false |
-| 75 | x == 0+0 when ... == ... is true |
-| 85 | 0 != x+0 when ... == ... is false |
-| 85 | 0 != y+0 when ... != ... is true |
-| 85 | 0 == x+0 when ... == ... is true |
-| 85 | 0 == y+0 when ... != ... is false |
-| 85 | (long)... != y+0 when ... != ... is true |
-| 85 | (long)... == y+0 when ... != ... is false |
-| 85 | x != 0+0 when ... == ... is false |
-| 85 | x == 0+0 when ... == ... is true |
-| 85 | y != 0+0 when ... != ... is true |
-| 85 | y != (long)...+0 when ... != ... is true |
-| 85 | y == 0+0 when ... != ... is false |
-| 85 | y == (long)...+0 when ... != ... is false |
-| 94 | 0 != x+0 when ... != ... is true |
-| 94 | 0 == x+0 when ... != ... is false |
-| 94 | x != 0+0 when ... != ... is true |
-| 94 | x == 0+0 when ... != ... is false |
-| 102 | 10 < j+1 when ... < ... is false |
-| 102 | 10 >= j+1 when ... < ... is true |
-| 102 | j < 10+0 when ... < ... is true |
-| 102 | j >= 10+0 when ... < ... is false |
-| 109 | 0 != x+0 when ... == ... is false |
-| 109 | 0 < y+1 when ... < ... is false |
-| 109 | 0 == x+0 when ... == ... is true |
-| 109 | 0 >= y+1 when ... < ... is true |
-| 109 | (long)... < y+1 when ... < ... is false |
-| 109 | (long)... >= y+1 when ... < ... is true |
-| 109 | x != 0+0 when ... == ... is false |
-| 109 | x == 0+0 when ... == ... is true |
-| 109 | y < 0+0 when ... < ... is true |
-| 109 | y < (long)...+0 when ... < ... is true |
-| 109 | y >= 0+0 when ... < ... is false |
-| 109 | y >= (long)...+0 when ... < ... is false |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.ql
deleted file mode 100644
index 4f390935a984..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsCompare.ql
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
- * @name Guards comparison test
- * @description List comparison parts.
- * @kind test
- */
-
-import cpp
-import semmle.code.cpp.controlflow.IRGuards
-
-Element clearConversions(Element e) {
-  if e instanceof Conversion
-  then result = e.(Conversion).getExpr*()
-  else result = e
-}
-
-from IRGuardCondition guard, Instruction left, Instruction right, int k, string which, string op, string msg
-where 
-(exists(boolean sense | sense = true and which = "true" or sense = false and which = "false" |
-    guard.comparesLt(left, right, k, true, sense) and op = " < "
-    or
-    guard.comparesLt(left, right, k, false, sense) and op = " >= "
-    or
-    guard.comparesEq(left, right, k, true, sense) and op = " == "
-    or 
-    guard.comparesEq(left, right, k, false, sense)  and op = " != "
- )
-)
-and msg = clearConversions(left.getAST()) + op + clearConversions(right.getAST()) + "+" + k + " when " + clearConversions(guard.getAST()) + " is " + which
-
-select guard.getLocation().getStartLine(), msg
\ No newline at end of file
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
deleted file mode 100644
index 3c96e1eaf84c..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.expected
+++ /dev/null
@@ -1,88 +0,0 @@
-| test.c:7:9:7:13 | ... > ... | false | 11 | 11 |
-| test.c:7:9:7:13 | ... > ... | true | 8 | 8 |
-| test.c:17:8:17:12 | ... < ... | true | 17 | 17 |
-| test.c:17:8:17:12 | ... < ... | true | 18 | 18 |
-| test.c:17:17:17:21 | ... > ... | true | 18 | 18 |
-| test.c:26:11:26:15 | ... > ... | false | 2 | 2 |
-| test.c:26:11:26:15 | ... > ... | false | 31 | 31 |
-| test.c:26:11:26:15 | ... > ... | false | 34 | 34 |
-| test.c:26:11:26:15 | ... > ... | false | 35 | 35 |
-| test.c:26:11:26:15 | ... > ... | false | 39 | 39 |
-| test.c:26:11:26:15 | ... > ... | false | 42 | 42 |
-| test.c:26:11:26:15 | ... > ... | false | 43 | 43 |
-| test.c:26:11:26:15 | ... > ... | false | 45 | 45 |
-| test.c:26:11:26:15 | ... > ... | false | 46 | 46 |
-| test.c:26:11:26:15 | ... > ... | false | 49 | 49 |
-| test.c:26:11:26:15 | ... > ... | false | 52 | 52 |
-| test.c:26:11:26:15 | ... > ... | false | 56 | 56 |
-| test.c:26:11:26:15 | ... > ... | false | 58 | 58 |
-| test.c:26:11:26:15 | ... > ... | false | 59 | 59 |
-| test.c:26:11:26:15 | ... > ... | false | 62 | 62 |
-| test.c:26:11:26:15 | ... > ... | true | 27 | 27 |
-| test.c:34:16:34:21 | ... < ... | false | 2 | 2 |
-| test.c:34:16:34:21 | ... < ... | false | 39 | 39 |
-| test.c:34:16:34:21 | ... < ... | false | 42 | 42 |
-| test.c:34:16:34:21 | ... < ... | false | 43 | 43 |
-| test.c:34:16:34:21 | ... < ... | false | 45 | 45 |
-| test.c:34:16:34:21 | ... < ... | false | 46 | 46 |
-| test.c:34:16:34:21 | ... < ... | false | 49 | 49 |
-| test.c:34:16:34:21 | ... < ... | false | 52 | 52 |
-| test.c:34:16:34:21 | ... < ... | false | 56 | 56 |
-| test.c:34:16:34:21 | ... < ... | false | 58 | 58 |
-| test.c:34:16:34:21 | ... < ... | false | 59 | 59 |
-| test.c:34:16:34:21 | ... < ... | false | 62 | 62 |
-| test.c:34:16:34:21 | ... < ... | true | 35 | 35 |
-| test.c:42:16:42:21 | ... < ... | true | 42 | 42 |
-| test.c:42:16:42:21 | ... < ... | true | 43 | 43 |
-| test.c:42:16:42:21 | ... < ... | true | 45 | 45 |
-| test.c:42:16:42:21 | ... < ... | true | 46 | 46 |
-| test.c:42:16:42:21 | ... < ... | true | 49 | 49 |
-| test.c:42:16:42:21 | ... < ... | true | 52 | 52 |
-| test.c:44:12:44:16 | ... > ... | false | 52 | 52 |
-| test.c:44:12:44:16 | ... > ... | true | 45 | 45 |
-| test.c:44:12:44:16 | ... > ... | true | 46 | 46 |
-| test.c:44:12:44:16 | ... > ... | true | 49 | 49 |
-| test.c:45:16:45:20 | ... > ... | false | 49 | 49 |
-| test.c:45:16:45:20 | ... > ... | true | 46 | 46 |
-| test.c:58:9:58:14 | ... == ... | false | 58 | 58 |
-| test.c:58:9:58:14 | ... == ... | false | 62 | 62 |
-| test.c:58:19:58:23 | ... < ... | false | 62 | 62 |
-| test.c:75:9:75:14 | ... == ... | false | 79 | 79 |
-| test.c:75:9:75:14 | ... == ... | true | 76 | 76 |
-| test.c:85:8:85:13 | ... == ... | true | 85 | 85 |
-| test.c:85:8:85:13 | ... == ... | true | 86 | 86 |
-| test.c:85:18:85:23 | ... != ... | true | 86 | 86 |
-| test.c:94:11:94:16 | ... != ... | false | 70 | 70 |
-| test.c:94:11:94:16 | ... != ... | false | 99 | 99 |
-| test.c:94:11:94:16 | ... != ... | false | 102 | 102 |
-| test.c:94:11:94:16 | ... != ... | false | 103 | 103 |
-| test.c:94:11:94:16 | ... != ... | false | 107 | 107 |
-| test.c:94:11:94:16 | ... != ... | false | 109 | 109 |
-| test.c:94:11:94:16 | ... != ... | false | 110 | 110 |
-| test.c:94:11:94:16 | ... != ... | false | 113 | 113 |
-| test.c:94:11:94:16 | ... != ... | true | 95 | 95 |
-| test.c:102:16:102:21 | ... < ... | false | 70 | 70 |
-| test.c:102:16:102:21 | ... < ... | false | 107 | 107 |
-| test.c:102:16:102:21 | ... < ... | false | 109 | 109 |
-| test.c:102:16:102:21 | ... < ... | false | 110 | 110 |
-| test.c:102:16:102:21 | ... < ... | false | 113 | 113 |
-| test.c:102:16:102:21 | ... < ... | true | 103 | 103 |
-| test.c:109:9:109:14 | ... == ... | false | 109 | 109 |
-| test.c:109:9:109:14 | ... == ... | false | 113 | 113 |
-| test.c:109:19:109:23 | ... < ... | false | 113 | 113 |
-| test.c:126:7:126:7 | 1 | true | 126 | 126 |
-| test.c:126:7:126:7 | 1 | true | 127 | 127 |
-| test.c:126:12:126:26 | call to test3_condition | true | 127 | 127 |
-| test.c:131:7:131:7 | b | true | 132 | 132 |
-| test.c:137:7:137:7 | 0 | true | 138 | 138 |
-| test.c:137:7:137:7 | 0 | true | 139 | 139 |
-| test.c:138:9:138:9 | i | true | 139 | 139 |
-| test.c:146:8:146:8 | x | false | 147 | 147 |
-| test.c:152:10:152:10 | x | true | 152 | 152 |
-| test.c:152:15:152:15 | y | true | 152 | 152 |
-| test.cpp:18:8:18:12 | (bool)... | true | 0 | 0 |
-| test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
-| test.cpp:31:7:31:13 | ... == ... | true | 30 | 30 |
-| test.cpp:31:7:31:13 | ... == ... | true | 32 | 32 |
-| test.cpp:42:13:42:20 | call to getABool | false | 53 | 53 |
-| test.cpp:42:13:42:20 | call to getABool | true | 44 | 44 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.ql
deleted file mode 100644
index a9864da941c1..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsControl.ql
+++ /dev/null
@@ -1,16 +0,0 @@
-/**
- * @name Guards control test
- * @description List which guards control which blocks
- * @kind test
- */
-
-import cpp
-import semmle.code.cpp.controlflow.IRGuards
-
-from IRGuardCondition guard, boolean sense, int start, int end
-where 
-exists(IRBlock block |
-       guard.controls(block, sense) and
-       block.getLocation().hasLocationInfo(_, start, _, end, _)
-)
-select guard.getAST(), sense, start, end
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.expected
deleted file mode 100644
index 8788337ccc3b..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.expected
+++ /dev/null
@@ -1,152 +0,0 @@
-| test.c:7:9:7:13 | ... > ... | test.c:7:9:7:9 | x | < | test.c:7:13:7:13 | 0 | 1 | 11 | 11 |
-| test.c:7:9:7:13 | ... > ... | test.c:7:9:7:9 | x | >= | test.c:7:13:7:13 | 0 | 1 | 8 | 8 |
-| test.c:7:9:7:13 | ... > ... | test.c:7:13:7:13 | 0 | < | test.c:7:9:7:9 | x | 0 | 8 | 8 |
-| test.c:7:9:7:13 | ... > ... | test.c:7:13:7:13 | 0 | >= | test.c:7:9:7:9 | x | 0 | 11 | 11 |
-| test.c:17:8:17:12 | ... < ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 17 | 17 |
-| test.c:17:8:17:12 | ... < ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 18 | 18 |
-| test.c:17:8:17:12 | ... < ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 17 | 17 |
-| test.c:17:8:17:12 | ... < ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 18 | 18 |
-| test.c:17:17:17:21 | ... > ... | test.c:17:17:17:17 | y | >= | test.c:17:21:17:21 | (long)... | 1 | 18 | 18 |
-| test.c:17:17:17:21 | ... > ... | test.c:17:21:17:21 | (long)... | < | test.c:17:17:17:17 | y | 0 | 18 | 18 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 2 | 2 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 31 | 31 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 34 | 34 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 35 | 35 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 39 | 39 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 42 | 42 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 43 | 43 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 45 | 45 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 46 | 46 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 49 | 49 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 52 | 52 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 56 | 56 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 58 | 58 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 59 | 59 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 62 | 62 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | >= | test.c:26:15:26:15 | 0 | 1 | 27 | 27 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | < | test.c:26:11:26:11 | x | 0 | 27 | 27 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 2 | 2 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 31 | 31 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 34 | 34 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 35 | 35 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 39 | 39 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 42 | 42 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 43 | 43 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 45 | 45 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 46 | 46 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 49 | 49 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 52 | 52 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 56 | 56 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 58 | 58 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 59 | 59 |
-| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 62 | 62 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | < | test.c:34:20:34:21 | 10 | 0 | 35 | 35 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 2 | 2 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 39 | 39 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 42 | 42 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 43 | 43 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 45 | 45 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 46 | 46 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 49 | 49 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 52 | 52 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 56 | 56 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 58 | 58 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 59 | 59 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 62 | 62 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 2 | 2 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 39 | 39 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 42 | 42 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 43 | 43 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 45 | 45 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 46 | 46 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 49 | 49 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 52 | 52 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 56 | 56 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 58 | 58 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 59 | 59 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 62 | 62 |
-| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | >= | test.c:34:16:34:16 | j | 1 | 35 | 35 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 42 | 42 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 43 | 43 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 45 | 45 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 46 | 46 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 49 | 49 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 52 | 52 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 42 | 42 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 43 | 43 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 45 | 45 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 46 | 46 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 49 | 49 |
-| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 52 | 52 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | < | test.c:44:16:44:16 | 0 | 1 | 52 | 52 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 45 | 45 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 46 | 46 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 49 | 49 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 45 | 45 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 46 | 46 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 49 | 49 |
-| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | >= | test.c:44:12:44:12 | z | 0 | 52 | 52 |
-| test.c:45:16:45:20 | ... > ... | test.c:45:16:45:16 | y | < | test.c:45:20:45:20 | (long)... | 1 | 49 | 49 |
-| test.c:45:16:45:20 | ... > ... | test.c:45:16:45:16 | y | >= | test.c:45:20:45:20 | (long)... | 1 | 46 | 46 |
-| test.c:45:16:45:20 | ... > ... | test.c:45:20:45:20 | (long)... | < | test.c:45:16:45:16 | y | 0 | 46 | 46 |
-| test.c:45:16:45:20 | ... > ... | test.c:45:20:45:20 | (long)... | >= | test.c:45:16:45:16 | y | 0 | 49 | 49 |
-| test.c:58:9:58:14 | ... == ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 58 | 58 |
-| test.c:58:9:58:14 | ... == ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 62 | 62 |
-| test.c:58:9:58:14 | ... == ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 58 | 58 |
-| test.c:58:9:58:14 | ... == ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 62 | 62 |
-| test.c:58:19:58:23 | ... < ... | test.c:58:19:58:19 | y | >= | test.c:58:23:58:23 | (long)... | 0 | 62 | 62 |
-| test.c:58:19:58:23 | ... < ... | test.c:58:23:58:23 | (long)... | < | test.c:58:19:58:19 | y | 1 | 62 | 62 |
-| test.c:75:9:75:14 | ... == ... | test.c:75:9:75:9 | x | != | test.c:75:14:75:14 | 0 | 0 | 79 | 79 |
-| test.c:75:9:75:14 | ... == ... | test.c:75:9:75:9 | x | == | test.c:75:14:75:14 | 0 | 0 | 76 | 76 |
-| test.c:75:9:75:14 | ... == ... | test.c:75:14:75:14 | 0 | != | test.c:75:9:75:9 | x | 0 | 79 | 79 |
-| test.c:75:9:75:14 | ... == ... | test.c:75:14:75:14 | 0 | == | test.c:75:9:75:9 | x | 0 | 76 | 76 |
-| test.c:85:8:85:13 | ... == ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 85 | 85 |
-| test.c:85:8:85:13 | ... == ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 86 | 86 |
-| test.c:85:8:85:13 | ... == ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 85 | 85 |
-| test.c:85:8:85:13 | ... == ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 86 | 86 |
-| test.c:85:18:85:23 | ... != ... | test.c:85:18:85:18 | y | != | test.c:85:23:85:23 | (long)... | 0 | 86 | 86 |
-| test.c:85:18:85:23 | ... != ... | test.c:85:23:85:23 | (long)... | != | test.c:85:18:85:18 | y | 0 | 86 | 86 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | != | test.c:94:16:94:16 | 0 | 0 | 95 | 95 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 70 | 70 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 99 | 99 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 102 | 102 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 103 | 103 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 107 | 107 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 109 | 109 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 110 | 110 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 113 | 113 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | != | test.c:94:11:94:11 | x | 0 | 95 | 95 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 70 | 70 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 99 | 99 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 102 | 102 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 103 | 103 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 107 | 107 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 109 | 109 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 110 | 110 |
-| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 113 | 113 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | < | test.c:102:20:102:21 | 10 | 0 | 103 | 103 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 70 | 70 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 107 | 107 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 109 | 109 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 110 | 110 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 113 | 113 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 70 | 70 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 107 | 107 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 109 | 109 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 110 | 110 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 113 | 113 |
-| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | >= | test.c:102:16:102:16 | j | 1 | 103 | 103 |
-| test.c:109:9:109:14 | ... == ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 109 | 109 |
-| test.c:109:9:109:14 | ... == ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 113 | 113 |
-| test.c:109:9:109:14 | ... == ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 109 | 109 |
-| test.c:109:9:109:14 | ... == ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 113 | 113 |
-| test.c:109:19:109:23 | ... < ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | (long)... | 0 | 113 | 113 |
-| test.c:109:19:109:23 | ... < ... | test.c:109:23:109:23 | (long)... | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
-| test.cpp:18:8:18:12 | (bool)... | test.cpp:18:8:18:10 | call to get | != | test.cpp:18:8:18:12 | (bool)... | 0 | 0 | 0 |
-| test.cpp:18:8:18:12 | (bool)... | test.cpp:18:8:18:12 | (bool)... | != | test.cpp:18:8:18:10 | call to get | 0 | 0 | 0 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 34 | 34 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 32 | 32 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | != | test.cpp:31:7:31:7 | x | 0 | 34 | 34 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 30 | 30 |
-| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 32 | 32 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.ql
deleted file mode 100644
index a13d4cf2a42e..000000000000
--- a/cpp/ql/test/library-tests/controlflow/guards-ir/IRGuardsEnsure.ql
+++ /dev/null
@@ -1,23 +0,0 @@
-/**
- * @name Guards control test
- * @description List which guards ensure which inequalities apply to which blocks
- * @kind test
- */
-
-import cpp
-import semmle.code.cpp.controlflow.IRGuards
-
-
-from IRGuardCondition guard, Instruction left, Instruction right, int k, int start, int end, string op
-where 
-exists(IRBlock block |
-       guard.ensuresLt(left, right, k, block, true) and op = "<"
-       or
-       guard.ensuresLt(left, right, k, block, false) and op = ">=" 
-        or
-       guard.ensuresEq(left, right, k, block, true) and op = "=="
-       or
-       guard.ensuresEq(left, right, k, block, false) and op = "!=" |
-       block.getLocation().hasLocationInfo(_, start, _, end, _)
-)
-select guard.getAST(), left.getAST(), op, right.getAST(), k, start, end
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/tests.expected b/cpp/ql/test/library-tests/controlflow/guards-ir/tests.expected
new file mode 100644
index 000000000000..07661aaf3206
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/tests.expected
@@ -0,0 +1,730 @@
+astGuards
+| test.c:7:9:7:13 | ... > ... |
+| test.c:17:8:17:12 | ... < ... |
+| test.c:17:8:17:21 | ... && ... |
+| test.c:17:17:17:21 | ... > ... |
+| test.c:26:11:26:15 | ... > ... |
+| test.c:34:16:34:21 | ... < ... |
+| test.c:42:16:42:21 | ... < ... |
+| test.c:44:12:44:16 | ... > ... |
+| test.c:45:16:45:20 | ... > ... |
+| test.c:58:9:58:14 | ... == ... |
+| test.c:58:9:58:23 | ... \|\| ... |
+| test.c:58:19:58:23 | ... < ... |
+| test.c:75:9:75:14 | ... == ... |
+| test.c:85:8:85:13 | ... == ... |
+| test.c:85:8:85:23 | ... && ... |
+| test.c:85:18:85:23 | ... != ... |
+| test.c:94:11:94:16 | ... != ... |
+| test.c:102:16:102:21 | ... < ... |
+| test.c:109:9:109:14 | ... == ... |
+| test.c:109:9:109:23 | ... \|\| ... |
+| test.c:109:19:109:23 | ... < ... |
+| test.c:126:7:126:7 | 1 |
+| test.c:126:7:126:28 | ... && ... |
+| test.c:126:12:126:26 | call to test3_condition |
+| test.c:131:7:131:7 | b |
+| test.c:137:7:137:7 | 0 |
+| test.c:138:9:138:9 | i |
+| test.c:146:7:146:8 | ! ... |
+| test.c:146:8:146:8 | x |
+| test.c:152:10:152:10 | x |
+| test.c:152:10:152:15 | ... && ... |
+| test.c:152:15:152:15 | y |
+| test.cpp:18:8:18:10 | call to get |
+| test.cpp:31:7:31:13 | ... == ... |
+| test.cpp:42:13:42:20 | call to getABool |
+astGuardsCompare
+| 7 | 0 < x+0 when ... > ... is true |
+| 7 | 0 >= x+0 when ... > ... is false |
+| 7 | x < 0+1 when ... > ... is false |
+| 7 | x >= 0+1 when ... > ... is true |
+| 17 | 0 < x+1 when ... < ... is false |
+| 17 | 0 >= x+1 when ... && ... is true |
+| 17 | 0 >= x+1 when ... < ... is true |
+| 17 | 1 < y+0 when ... && ... is true |
+| 17 | 1 < y+0 when ... > ... is true |
+| 17 | 1 >= y+0 when ... > ... is false |
+| 17 | x < 0+0 when ... && ... is true |
+| 17 | x < 0+0 when ... < ... is true |
+| 17 | x >= 0+0 when ... < ... is false |
+| 17 | y < 1+1 when ... > ... is false |
+| 17 | y >= 1+1 when ... && ... is true |
+| 17 | y >= 1+1 when ... > ... is true |
+| 26 | 0 < x+0 when ... > ... is true |
+| 26 | 0 >= x+0 when ... > ... is false |
+| 26 | x < 0+1 when ... > ... is false |
+| 26 | x >= 0+1 when ... > ... is true |
+| 31 | - ... != x+0 when ... == ... is false |
+| 31 | - ... == x+0 when ... == ... is true |
+| 31 | x != - ...+0 when ... == ... is false |
+| 31 | x == - ...+0 when ... == ... is true |
+| 34 | 10 < j+1 when ... < ... is false |
+| 34 | 10 >= j+1 when ... < ... is true |
+| 34 | j < 10+0 when ... < ... is true |
+| 34 | j >= 10+0 when ... < ... is false |
+| 42 | 10 < j+1 when ... < ... is false |
+| 42 | 10 >= j+1 when ... < ... is true |
+| 42 | j < 10+0 when ... < ... is true |
+| 42 | j >= 10+0 when ... < ... is false |
+| 44 | 0 < z+0 when ... > ... is true |
+| 44 | 0 >= z+0 when ... > ... is false |
+| 44 | z < 0+1 when ... > ... is false |
+| 44 | z >= 0+1 when ... > ... is true |
+| 45 | 0 < y+0 when ... > ... is true |
+| 45 | 0 >= y+0 when ... > ... is false |
+| 45 | y < 0+1 when ... > ... is false |
+| 45 | y >= 0+1 when ... > ... is true |
+| 58 | 0 != x+0 when ... == ... is false |
+| 58 | 0 != x+0 when ... \|\| ... is false |
+| 58 | 0 < y+1 when ... < ... is false |
+| 58 | 0 < y+1 when ... \|\| ... is false |
+| 58 | 0 == x+0 when ... == ... is true |
+| 58 | 0 >= y+1 when ... < ... is true |
+| 58 | x != 0+0 when ... == ... is false |
+| 58 | x != 0+0 when ... \|\| ... is false |
+| 58 | x == 0+0 when ... == ... is true |
+| 58 | y < 0+0 when ... < ... is true |
+| 58 | y >= 0+0 when ... < ... is false |
+| 58 | y >= 0+0 when ... \|\| ... is false |
+| 75 | 0 != x+0 when ... == ... is false |
+| 75 | 0 == x+0 when ... == ... is true |
+| 75 | x != 0+0 when ... == ... is false |
+| 75 | x == 0+0 when ... == ... is true |
+| 85 | 0 != x+0 when ... == ... is false |
+| 85 | 0 != y+0 when ... != ... is true |
+| 85 | 0 != y+0 when ... && ... is true |
+| 85 | 0 == x+0 when ... && ... is true |
+| 85 | 0 == x+0 when ... == ... is true |
+| 85 | 0 == y+0 when ... != ... is false |
+| 85 | x != 0+0 when ... == ... is false |
+| 85 | x == 0+0 when ... && ... is true |
+| 85 | x == 0+0 when ... == ... is true |
+| 85 | y != 0+0 when ... != ... is true |
+| 85 | y != 0+0 when ... && ... is true |
+| 85 | y == 0+0 when ... != ... is false |
+| 94 | 0 != x+0 when ... != ... is true |
+| 94 | 0 == x+0 when ... != ... is false |
+| 94 | x != 0+0 when ... != ... is true |
+| 94 | x == 0+0 when ... != ... is false |
+| 102 | 10 < j+1 when ... < ... is false |
+| 102 | 10 >= j+1 when ... < ... is true |
+| 102 | j < 10+0 when ... < ... is true |
+| 102 | j >= 10+0 when ... < ... is false |
+| 109 | 0 != x+0 when ... == ... is false |
+| 109 | 0 != x+0 when ... \|\| ... is false |
+| 109 | 0 < y+1 when ... < ... is false |
+| 109 | 0 < y+1 when ... \|\| ... is false |
+| 109 | 0 == x+0 when ... == ... is true |
+| 109 | 0 >= y+1 when ... < ... is true |
+| 109 | x != 0+0 when ... == ... is false |
+| 109 | x != 0+0 when ... \|\| ... is false |
+| 109 | x == 0+0 when ... == ... is true |
+| 109 | y < 0+0 when ... < ... is true |
+| 109 | y >= 0+0 when ... < ... is false |
+| 109 | y >= 0+0 when ... \|\| ... is false |
+astGuardsControl
+| test.c:7:9:7:13 | ... > ... | false | 10 | 11 |
+| test.c:7:9:7:13 | ... > ... | true | 7 | 9 |
+| test.c:17:8:17:12 | ... < ... | true | 17 | 17 |
+| test.c:17:8:17:12 | ... < ... | true | 18 | 18 |
+| test.c:17:8:17:21 | ... && ... | true | 18 | 18 |
+| test.c:17:17:17:21 | ... > ... | true | 18 | 18 |
+| test.c:26:11:26:15 | ... > ... | false | 2 | 2 |
+| test.c:26:11:26:15 | ... > ... | false | 31 | 34 |
+| test.c:26:11:26:15 | ... > ... | false | 34 | 34 |
+| test.c:26:11:26:15 | ... > ... | false | 39 | 42 |
+| test.c:26:11:26:15 | ... > ... | false | 42 | 42 |
+| test.c:26:11:26:15 | ... > ... | false | 42 | 44 |
+| test.c:26:11:26:15 | ... > ... | false | 45 | 45 |
+| test.c:26:11:26:15 | ... > ... | false | 45 | 47 |
+| test.c:26:11:26:15 | ... > ... | false | 48 | 55 |
+| test.c:26:11:26:15 | ... > ... | false | 51 | 53 |
+| test.c:26:11:26:15 | ... > ... | false | 56 | 58 |
+| test.c:26:11:26:15 | ... > ... | false | 58 | 58 |
+| test.c:26:11:26:15 | ... > ... | false | 58 | 66 |
+| test.c:26:11:26:15 | ... > ... | false | 62 | 62 |
+| test.c:26:11:26:15 | ... > ... | true | 26 | 28 |
+| test.c:34:16:34:21 | ... < ... | false | 2 | 2 |
+| test.c:34:16:34:21 | ... < ... | false | 39 | 42 |
+| test.c:34:16:34:21 | ... < ... | false | 42 | 42 |
+| test.c:34:16:34:21 | ... < ... | false | 42 | 44 |
+| test.c:34:16:34:21 | ... < ... | false | 45 | 45 |
+| test.c:34:16:34:21 | ... < ... | false | 45 | 47 |
+| test.c:34:16:34:21 | ... < ... | false | 48 | 55 |
+| test.c:34:16:34:21 | ... < ... | false | 51 | 53 |
+| test.c:34:16:34:21 | ... < ... | false | 56 | 58 |
+| test.c:34:16:34:21 | ... < ... | false | 58 | 58 |
+| test.c:34:16:34:21 | ... < ... | false | 58 | 66 |
+| test.c:34:16:34:21 | ... < ... | false | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | true | 34 | 34 |
+| test.c:42:16:42:21 | ... < ... | true | 42 | 42 |
+| test.c:42:16:42:21 | ... < ... | true | 42 | 44 |
+| test.c:42:16:42:21 | ... < ... | true | 45 | 45 |
+| test.c:42:16:42:21 | ... < ... | true | 45 | 47 |
+| test.c:42:16:42:21 | ... < ... | true | 48 | 55 |
+| test.c:42:16:42:21 | ... < ... | true | 51 | 53 |
+| test.c:44:12:44:16 | ... > ... | false | 51 | 53 |
+| test.c:44:12:44:16 | ... > ... | true | 45 | 45 |
+| test.c:44:12:44:16 | ... > ... | true | 45 | 47 |
+| test.c:44:12:44:16 | ... > ... | true | 48 | 55 |
+| test.c:45:16:45:20 | ... > ... | false | 48 | 55 |
+| test.c:45:16:45:20 | ... > ... | true | 45 | 47 |
+| test.c:58:9:58:14 | ... == ... | false | 58 | 58 |
+| test.c:58:9:58:14 | ... == ... | false | 62 | 62 |
+| test.c:58:9:58:23 | ... \|\| ... | false | 62 | 62 |
+| test.c:58:19:58:23 | ... < ... | false | 62 | 62 |
+| test.c:75:9:75:14 | ... == ... | false | 78 | 79 |
+| test.c:75:9:75:14 | ... == ... | true | 75 | 77 |
+| test.c:85:8:85:13 | ... == ... | true | 85 | 85 |
+| test.c:85:8:85:13 | ... == ... | true | 86 | 86 |
+| test.c:85:8:85:23 | ... && ... | true | 86 | 86 |
+| test.c:85:18:85:23 | ... != ... | true | 86 | 86 |
+| test.c:94:11:94:16 | ... != ... | false | 70 | 70 |
+| test.c:94:11:94:16 | ... != ... | false | 99 | 102 |
+| test.c:94:11:94:16 | ... != ... | false | 102 | 102 |
+| test.c:94:11:94:16 | ... != ... | false | 107 | 109 |
+| test.c:94:11:94:16 | ... != ... | false | 109 | 109 |
+| test.c:94:11:94:16 | ... != ... | false | 109 | 117 |
+| test.c:94:11:94:16 | ... != ... | false | 113 | 113 |
+| test.c:94:11:94:16 | ... != ... | true | 94 | 96 |
+| test.c:102:16:102:21 | ... < ... | false | 70 | 70 |
+| test.c:102:16:102:21 | ... < ... | false | 107 | 109 |
+| test.c:102:16:102:21 | ... < ... | false | 109 | 109 |
+| test.c:102:16:102:21 | ... < ... | false | 109 | 117 |
+| test.c:102:16:102:21 | ... < ... | false | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | true | 102 | 102 |
+| test.c:109:9:109:14 | ... == ... | false | 109 | 109 |
+| test.c:109:9:109:14 | ... == ... | false | 113 | 113 |
+| test.c:109:9:109:23 | ... \|\| ... | false | 113 | 113 |
+| test.c:109:19:109:23 | ... < ... | false | 113 | 113 |
+| test.c:126:7:126:7 | 1 | true | 126 | 126 |
+| test.c:126:7:126:7 | 1 | true | 126 | 128 |
+| test.c:126:7:126:28 | ... && ... | true | 126 | 128 |
+| test.c:126:12:126:26 | call to test3_condition | true | 126 | 128 |
+| test.c:131:7:131:7 | b | true | 131 | 132 |
+| test.c:137:7:137:7 | 0 | true | 137 | 138 |
+| test.c:137:7:137:7 | 0 | true | 138 | 139 |
+| test.c:138:9:138:9 | i | true | 138 | 139 |
+| test.c:146:7:146:8 | ! ... | true | 146 | 147 |
+| test.c:146:8:146:8 | x | false | 146 | 147 |
+| test.c:152:10:152:10 | x | true | 151 | 152 |
+| test.c:152:10:152:10 | x | true | 152 | 152 |
+| test.c:152:10:152:15 | ... && ... | true | 151 | 152 |
+| test.c:152:15:152:15 | y | true | 151 | 152 |
+| test.cpp:18:8:18:10 | call to get | true | 19 | 19 |
+| test.cpp:31:7:31:13 | ... == ... | false | 30 | 30 |
+| test.cpp:31:7:31:13 | ... == ... | false | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | true | 30 | 30 |
+| test.cpp:31:7:31:13 | ... == ... | true | 31 | 32 |
+| test.cpp:42:13:42:20 | call to getABool | false | 53 | 53 |
+| test.cpp:42:13:42:20 | call to getABool | true | 43 | 45 |
+astGuardsEnsure
+| test.c:7:9:7:13 | ... > ... | test.c:7:9:7:9 | x | < | test.c:7:13:7:13 | 0 | 1 | 10 | 11 |
+| test.c:7:9:7:13 | ... > ... | test.c:7:9:7:9 | x | >= | test.c:7:13:7:13 | 0 | 1 | 7 | 9 |
+| test.c:7:9:7:13 | ... > ... | test.c:7:13:7:13 | 0 | < | test.c:7:9:7:9 | x | 0 | 7 | 9 |
+| test.c:7:9:7:13 | ... > ... | test.c:7:13:7:13 | 0 | >= | test.c:7:9:7:9 | x | 0 | 10 | 11 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 17 | 17 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 18 | 18 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 17 | 17 |
+| test.c:17:8:17:12 | ... < ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 18 | 18 |
+| test.c:17:8:17:21 | ... && ... | test.c:17:8:17:8 | x | < | test.c:17:12:17:12 | 0 | 0 | 18 | 18 |
+| test.c:17:8:17:21 | ... && ... | test.c:17:12:17:12 | 0 | >= | test.c:17:8:17:8 | x | 1 | 18 | 18 |
+| test.c:17:8:17:21 | ... && ... | test.c:17:17:17:17 | y | >= | test.c:17:21:17:21 | 1 | 1 | 18 | 18 |
+| test.c:17:8:17:21 | ... && ... | test.c:17:21:17:21 | 1 | < | test.c:17:17:17:17 | y | 0 | 18 | 18 |
+| test.c:17:17:17:21 | ... > ... | test.c:17:17:17:17 | y | >= | test.c:17:21:17:21 | 1 | 1 | 18 | 18 |
+| test.c:17:17:17:21 | ... > ... | test.c:17:21:17:21 | 1 | < | test.c:17:17:17:17 | y | 0 | 18 | 18 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 2 | 2 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 31 | 34 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 34 | 34 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 39 | 42 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 42 | 42 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 42 | 44 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 45 | 45 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 45 | 47 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 48 | 55 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 51 | 53 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 56 | 58 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 58 | 58 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 58 | 66 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | < | test.c:26:15:26:15 | 0 | 1 | 62 | 62 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:11:26:11 | x | >= | test.c:26:15:26:15 | 0 | 1 | 26 | 28 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | < | test.c:26:11:26:11 | x | 0 | 26 | 28 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 2 | 2 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 31 | 34 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 34 | 34 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 39 | 42 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 42 | 42 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 42 | 44 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 45 | 45 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 45 | 47 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 48 | 55 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 51 | 53 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 56 | 58 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 58 | 58 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 58 | 66 |
+| test.c:26:11:26:15 | ... > ... | test.c:26:15:26:15 | 0 | >= | test.c:26:11:26:11 | x | 0 | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | < | test.c:34:20:34:21 | 10 | 0 | 34 | 34 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 2 | 2 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 39 | 42 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 42 | 42 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 42 | 44 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 45 | 45 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 45 | 47 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 48 | 55 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 51 | 53 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 56 | 58 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 58 | 58 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 58 | 66 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:16:34:16 | j | >= | test.c:34:20:34:21 | 10 | 0 | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 2 | 2 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 39 | 42 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 42 | 42 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 42 | 44 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 45 | 45 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 45 | 47 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 48 | 55 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 51 | 53 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 56 | 58 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 58 | 58 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 58 | 66 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | < | test.c:34:16:34:16 | j | 1 | 62 | 62 |
+| test.c:34:16:34:21 | ... < ... | test.c:34:20:34:21 | 10 | >= | test.c:34:16:34:16 | j | 1 | 34 | 34 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 42 | 42 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 42 | 44 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 45 | 45 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 45 | 47 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 48 | 55 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:16:42:16 | j | < | test.c:42:20:42:21 | 10 | 0 | 51 | 53 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 42 | 42 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 42 | 44 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 45 | 45 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 45 | 47 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 48 | 55 |
+| test.c:42:16:42:21 | ... < ... | test.c:42:20:42:21 | 10 | >= | test.c:42:16:42:16 | j | 1 | 51 | 53 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | < | test.c:44:16:44:16 | 0 | 1 | 51 | 53 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 45 | 45 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 45 | 47 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:12:44:12 | z | >= | test.c:44:16:44:16 | 0 | 1 | 48 | 55 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 45 | 45 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 45 | 47 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | < | test.c:44:12:44:12 | z | 0 | 48 | 55 |
+| test.c:44:12:44:16 | ... > ... | test.c:44:16:44:16 | 0 | >= | test.c:44:12:44:12 | z | 0 | 51 | 53 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:16:45:16 | y | < | test.c:45:20:45:20 | 0 | 1 | 48 | 55 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:16:45:16 | y | >= | test.c:45:20:45:20 | 0 | 1 | 45 | 47 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:20:45:20 | 0 | < | test.c:45:16:45:16 | y | 0 | 45 | 47 |
+| test.c:45:16:45:20 | ... > ... | test.c:45:20:45:20 | 0 | >= | test.c:45:16:45:16 | y | 0 | 48 | 55 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 58 | 58 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 62 | 62 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 58 | 58 |
+| test.c:58:9:58:14 | ... == ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 62 | 62 |
+| test.c:58:9:58:23 | ... \|\| ... | test.c:58:9:58:9 | x | != | test.c:58:14:58:14 | 0 | 0 | 62 | 62 |
+| test.c:58:9:58:23 | ... \|\| ... | test.c:58:14:58:14 | 0 | != | test.c:58:9:58:9 | x | 0 | 62 | 62 |
+| test.c:58:9:58:23 | ... \|\| ... | test.c:58:19:58:19 | y | >= | test.c:58:23:58:23 | 0 | 0 | 62 | 62 |
+| test.c:58:9:58:23 | ... \|\| ... | test.c:58:23:58:23 | 0 | < | test.c:58:19:58:19 | y | 1 | 62 | 62 |
+| test.c:58:19:58:23 | ... < ... | test.c:58:19:58:19 | y | >= | test.c:58:23:58:23 | 0 | 0 | 62 | 62 |
+| test.c:58:19:58:23 | ... < ... | test.c:58:23:58:23 | 0 | < | test.c:58:19:58:19 | y | 1 | 62 | 62 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:9:75:9 | x | != | test.c:75:14:75:14 | 0 | 0 | 78 | 79 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:9:75:9 | x | == | test.c:75:14:75:14 | 0 | 0 | 75 | 77 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:14:75:14 | 0 | != | test.c:75:9:75:9 | x | 0 | 78 | 79 |
+| test.c:75:9:75:14 | ... == ... | test.c:75:14:75:14 | 0 | == | test.c:75:9:75:9 | x | 0 | 75 | 77 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 85 | 85 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 86 | 86 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 85 | 85 |
+| test.c:85:8:85:13 | ... == ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 86 | 86 |
+| test.c:85:8:85:23 | ... && ... | test.c:85:8:85:8 | x | == | test.c:85:13:85:13 | 0 | 0 | 86 | 86 |
+| test.c:85:8:85:23 | ... && ... | test.c:85:13:85:13 | 0 | == | test.c:85:8:85:8 | x | 0 | 86 | 86 |
+| test.c:85:8:85:23 | ... && ... | test.c:85:18:85:18 | y | != | test.c:85:23:85:23 | 0 | 0 | 86 | 86 |
+| test.c:85:8:85:23 | ... && ... | test.c:85:23:85:23 | 0 | != | test.c:85:18:85:18 | y | 0 | 86 | 86 |
+| test.c:85:18:85:23 | ... != ... | test.c:85:18:85:18 | y | != | test.c:85:23:85:23 | 0 | 0 | 86 | 86 |
+| test.c:85:18:85:23 | ... != ... | test.c:85:23:85:23 | 0 | != | test.c:85:18:85:18 | y | 0 | 86 | 86 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | != | test.c:94:16:94:16 | 0 | 0 | 94 | 96 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 70 | 70 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 99 | 102 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 102 | 102 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 107 | 109 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 109 | 109 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 109 | 117 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:11:94:11 | x | == | test.c:94:16:94:16 | 0 | 0 | 113 | 113 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | != | test.c:94:11:94:11 | x | 0 | 94 | 96 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 70 | 70 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 99 | 102 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 102 | 102 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 107 | 109 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 109 | 109 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 109 | 117 |
+| test.c:94:11:94:16 | ... != ... | test.c:94:16:94:16 | 0 | == | test.c:94:11:94:11 | x | 0 | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | < | test.c:102:20:102:21 | 10 | 0 | 102 | 102 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 70 | 70 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 107 | 109 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 109 | 109 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 109 | 117 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:16:102:16 | j | >= | test.c:102:20:102:21 | 10 | 0 | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 70 | 70 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 107 | 109 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 109 | 109 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 109 | 117 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | < | test.c:102:16:102:16 | j | 1 | 113 | 113 |
+| test.c:102:16:102:21 | ... < ... | test.c:102:20:102:21 | 10 | >= | test.c:102:16:102:16 | j | 1 | 102 | 102 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 109 | 109 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 113 | 113 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 109 | 109 |
+| test.c:109:9:109:14 | ... == ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 113 | 113 |
+| test.c:109:9:109:23 | ... \|\| ... | test.c:109:9:109:9 | x | != | test.c:109:14:109:14 | 0 | 0 | 113 | 113 |
+| test.c:109:9:109:23 | ... \|\| ... | test.c:109:14:109:14 | 0 | != | test.c:109:9:109:9 | x | 0 | 113 | 113 |
+| test.c:109:9:109:23 | ... \|\| ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | 0 | 0 | 113 | 113 |
+| test.c:109:9:109:23 | ... \|\| ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
+| test.c:109:19:109:23 | ... < ... | test.c:109:19:109:19 | y | >= | test.c:109:23:109:23 | 0 | 0 | 113 | 113 |
+| test.c:109:19:109:23 | ... < ... | test.c:109:23:109:23 | 0 | < | test.c:109:19:109:19 | y | 1 | 113 | 113 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | != | test.cpp:31:12:31:13 | - ... | 0 | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 30 | 30 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:7:31:7 | x | == | test.cpp:31:12:31:13 | - ... | 0 | 31 | 32 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | != | test.cpp:31:7:31:7 | x | 0 | 30 | 30 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | != | test.cpp:31:7:31:7 | x | 0 | 34 | 34 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 30 | 30 |
+| test.cpp:31:7:31:13 | ... == ... | test.cpp:31:12:31:13 | - ... | == | test.cpp:31:7:31:7 | x | 0 | 31 | 32 |
+irGuards
+| test.c:7:9:7:13 | r0_16(int) = CompareGT r0_14, r0_15 |
+| test.c:17:8:17:12 | r16_13(int) = CompareLT r16_11, r16_12 |
+| test.c:17:17:17:21 | r17_3(int) = CompareGT r17_1, r17_2 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 |
+| test.c:45:16:45:20 | r5_3(int) = CompareGT r5_1, r5_2 |
+| test.c:58:9:58:14 | r10_5(int) = CompareEQ r10_3, r10_4 |
+| test.c:58:19:58:23 | r11_3(int) = CompareLT r11_1, r11_2 |
+| test.c:75:9:75:14 | r0_16(int) = CompareEQ r0_14, r0_15 |
+| test.c:85:8:85:13 | r8_13(int) = CompareEQ r8_11, r8_12 |
+| test.c:85:18:85:23 | r9_3(int) = CompareNE r9_1, r9_2 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 |
+| test.c:109:9:109:14 | r2_9(int) = CompareEQ r2_7, r2_8 |
+| test.c:109:19:109:23 | r3_3(int) = CompareLT r3_1, r3_2 |
+| test.c:126:7:126:7 | r0_5(int) = Constant[1]  |
+| test.c:126:12:126:26 | r1_1(int) = Call r1_0 |
+| test.c:131:7:131:7 | r3_2(int) = Load r3_1, m3_0 |
+| test.c:137:7:137:7 | r0_4(int) = Constant[0]  |
+| test.c:138:9:138:9 | r1_1(int) = Load r1_0, m0_3 |
+| test.c:146:8:146:8 | r0_5(int) = Load r0_4, m0_3 |
+| test.c:152:10:152:10 | r0_7(int) = Load r0_6, m0_3 |
+| test.c:152:15:152:15 | r1_1(int) = Load r1_0, m0_5 |
+| test.cpp:18:8:18:12 | r0_7(bool) = CompareNE r0_5, r0_6 |
+| test.cpp:31:7:31:13 | r0_7(bool) = CompareEQ r0_5, r0_6 |
+| test.cpp:42:13:42:20 | r0_5(bool) = Call r0_4 |
+irGuardsCompare
+| 7 | 0 < x+0 when r0_16(int) = CompareGT r0_14, r0_15 is true |
+| 7 | 0 >= x+0 when r0_16(int) = CompareGT r0_14, r0_15 is false |
+| 7 | x < 0+1 when r0_16(int) = CompareGT r0_14, r0_15 is false |
+| 7 | x >= 0+1 when r0_16(int) = CompareGT r0_14, r0_15 is true |
+| 17 | 0 < x+1 when r16_13(int) = CompareLT r16_11, r16_12 is false |
+| 17 | 0 >= x+1 when r16_13(int) = CompareLT r16_11, r16_12 is true |
+| 17 | 1 < y+0 when r17_3(int) = CompareGT r17_1, r17_2 is true |
+| 17 | 1 >= y+0 when r17_3(int) = CompareGT r17_1, r17_2 is false |
+| 17 | x < 0+0 when r16_13(int) = CompareLT r16_11, r16_12 is true |
+| 17 | x >= 0+0 when r16_13(int) = CompareLT r16_11, r16_12 is false |
+| 17 | y < 1+1 when r17_3(int) = CompareGT r17_1, r17_2 is false |
+| 17 | y >= 1+1 when r17_3(int) = CompareGT r17_1, r17_2 is true |
+| 26 | 0 < x+0 when r21_5(int) = CompareGT r21_3, r21_4 is true |
+| 26 | 0 >= x+0 when r21_5(int) = CompareGT r21_3, r21_4 is false |
+| 26 | x < 0+1 when r21_5(int) = CompareGT r21_3, r21_4 is false |
+| 26 | x >= 0+1 when r21_5(int) = CompareGT r21_3, r21_4 is true |
+| 31 | - ... != x+0 when r0_7(bool) = CompareEQ r0_5, r0_6 is false |
+| 31 | - ... == x+0 when r0_7(bool) = CompareEQ r0_5, r0_6 is true |
+| 31 | x != - ...+0 when r0_7(bool) = CompareEQ r0_5, r0_6 is false |
+| 31 | x == - ...+0 when r0_7(bool) = CompareEQ r0_5, r0_6 is true |
+| 34 | 10 < j+1 when r24_6(int) = CompareLT r24_4, r24_5 is false |
+| 34 | 10 >= j+1 when r24_6(int) = CompareLT r24_4, r24_5 is true |
+| 34 | j < 10+0 when r24_6(int) = CompareLT r24_4, r24_5 is true |
+| 34 | j >= 10+0 when r24_6(int) = CompareLT r24_4, r24_5 is false |
+| 42 | 10 < j+1 when r3_6(int) = CompareLT r3_4, r3_5 is false |
+| 42 | 10 >= j+1 when r3_6(int) = CompareLT r3_4, r3_5 is true |
+| 42 | j < 10+0 when r3_6(int) = CompareLT r3_4, r3_5 is true |
+| 42 | j >= 10+0 when r3_6(int) = CompareLT r3_4, r3_5 is false |
+| 44 | 0 < z+0 when r4_6(int) = CompareGT r4_4, r4_5 is true |
+| 44 | 0 >= z+0 when r4_6(int) = CompareGT r4_4, r4_5 is false |
+| 44 | z < 0+1 when r4_6(int) = CompareGT r4_4, r4_5 is false |
+| 44 | z >= 0+1 when r4_6(int) = CompareGT r4_4, r4_5 is true |
+| 45 | 0 < y+0 when r5_3(int) = CompareGT r5_1, r5_2 is true |
+| 45 | 0 >= y+0 when r5_3(int) = CompareGT r5_1, r5_2 is false |
+| 45 | y < 0+1 when r5_3(int) = CompareGT r5_1, r5_2 is false |
+| 45 | y >= 0+1 when r5_3(int) = CompareGT r5_1, r5_2 is true |
+| 58 | 0 != x+0 when r10_5(int) = CompareEQ r10_3, r10_4 is false |
+| 58 | 0 < y+1 when r11_3(int) = CompareLT r11_1, r11_2 is false |
+| 58 | 0 == x+0 when r10_5(int) = CompareEQ r10_3, r10_4 is true |
+| 58 | 0 >= y+1 when r11_3(int) = CompareLT r11_1, r11_2 is true |
+| 58 | x != 0+0 when r10_5(int) = CompareEQ r10_3, r10_4 is false |
+| 58 | x == 0+0 when r10_5(int) = CompareEQ r10_3, r10_4 is true |
+| 58 | y < 0+0 when r11_3(int) = CompareLT r11_1, r11_2 is true |
+| 58 | y >= 0+0 when r11_3(int) = CompareLT r11_1, r11_2 is false |
+| 75 | 0 != x+0 when r0_16(int) = CompareEQ r0_14, r0_15 is false |
+| 75 | 0 == x+0 when r0_16(int) = CompareEQ r0_14, r0_15 is true |
+| 75 | x != 0+0 when r0_16(int) = CompareEQ r0_14, r0_15 is false |
+| 75 | x == 0+0 when r0_16(int) = CompareEQ r0_14, r0_15 is true |
+| 85 | 0 != x+0 when r8_13(int) = CompareEQ r8_11, r8_12 is false |
+| 85 | 0 != y+0 when r9_3(int) = CompareNE r9_1, r9_2 is true |
+| 85 | 0 == x+0 when r8_13(int) = CompareEQ r8_11, r8_12 is true |
+| 85 | 0 == y+0 when r9_3(int) = CompareNE r9_1, r9_2 is false |
+| 85 | x != 0+0 when r8_13(int) = CompareEQ r8_11, r8_12 is false |
+| 85 | x == 0+0 when r8_13(int) = CompareEQ r8_11, r8_12 is true |
+| 85 | y != 0+0 when r9_3(int) = CompareNE r9_1, r9_2 is true |
+| 85 | y == 0+0 when r9_3(int) = CompareNE r9_1, r9_2 is false |
+| 94 | 0 != x+0 when r13_5(int) = CompareNE r13_3, r13_4 is true |
+| 94 | 0 == x+0 when r13_5(int) = CompareNE r13_3, r13_4 is false |
+| 94 | x != 0+0 when r13_5(int) = CompareNE r13_3, r13_4 is true |
+| 94 | x == 0+0 when r13_5(int) = CompareNE r13_3, r13_4 is false |
+| 102 | 10 < j+1 when r16_6(int) = CompareLT r16_4, r16_5 is false |
+| 102 | 10 >= j+1 when r16_6(int) = CompareLT r16_4, r16_5 is true |
+| 102 | j < 10+0 when r16_6(int) = CompareLT r16_4, r16_5 is true |
+| 102 | j >= 10+0 when r16_6(int) = CompareLT r16_4, r16_5 is false |
+| 109 | 0 != x+0 when r2_9(int) = CompareEQ r2_7, r2_8 is false |
+| 109 | 0 < y+1 when r3_3(int) = CompareLT r3_1, r3_2 is false |
+| 109 | 0 == x+0 when r2_9(int) = CompareEQ r2_7, r2_8 is true |
+| 109 | 0 >= y+1 when r3_3(int) = CompareLT r3_1, r3_2 is true |
+| 109 | x != 0+0 when r2_9(int) = CompareEQ r2_7, r2_8 is false |
+| 109 | x == 0+0 when r2_9(int) = CompareEQ r2_7, r2_8 is true |
+| 109 | y < 0+0 when r3_3(int) = CompareLT r3_1, r3_2 is true |
+| 109 | y >= 0+0 when r3_3(int) = CompareLT r3_1, r3_2 is false |
+irGuardsControl
+| test.c:7:9:7:13 | r0_16(int) = CompareGT r0_14, r0_15 | false | 11 | 11 |
+| test.c:7:9:7:13 | r0_16(int) = CompareGT r0_14, r0_15 | true | 8 | 8 |
+| test.c:17:8:17:12 | r16_13(int) = CompareLT r16_11, r16_12 | true | 17 | 17 |
+| test.c:17:8:17:12 | r16_13(int) = CompareLT r16_11, r16_12 | true | 18 | 18 |
+| test.c:17:17:17:21 | r17_3(int) = CompareGT r17_1, r17_2 | true | 18 | 18 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 2 | 2 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 31 | 31 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 34 | 34 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 35 | 35 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 39 | 39 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 42 | 42 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 43 | 43 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 45 | 45 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 46 | 46 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 49 | 49 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 52 | 52 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 56 | 56 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 58 | 58 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 59 | 59 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | false | 62 | 62 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | true | 27 | 27 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 2 | 2 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 39 | 39 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 42 | 42 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 43 | 43 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 45 | 45 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 46 | 46 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 49 | 49 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 52 | 52 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 56 | 56 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 58 | 58 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 59 | 59 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | false | 62 | 62 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | true | 35 | 35 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | true | 42 | 42 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | true | 43 | 43 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | true | 45 | 45 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | true | 46 | 46 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | true | 49 | 49 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | true | 52 | 52 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | false | 52 | 52 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | true | 45 | 45 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | true | 46 | 46 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | true | 49 | 49 |
+| test.c:45:16:45:20 | r5_3(int) = CompareGT r5_1, r5_2 | false | 49 | 49 |
+| test.c:45:16:45:20 | r5_3(int) = CompareGT r5_1, r5_2 | true | 46 | 46 |
+| test.c:58:9:58:14 | r10_5(int) = CompareEQ r10_3, r10_4 | false | 58 | 58 |
+| test.c:58:9:58:14 | r10_5(int) = CompareEQ r10_3, r10_4 | false | 62 | 62 |
+| test.c:58:19:58:23 | r11_3(int) = CompareLT r11_1, r11_2 | false | 62 | 62 |
+| test.c:75:9:75:14 | r0_16(int) = CompareEQ r0_14, r0_15 | false | 79 | 79 |
+| test.c:75:9:75:14 | r0_16(int) = CompareEQ r0_14, r0_15 | true | 76 | 76 |
+| test.c:85:8:85:13 | r8_13(int) = CompareEQ r8_11, r8_12 | true | 85 | 85 |
+| test.c:85:8:85:13 | r8_13(int) = CompareEQ r8_11, r8_12 | true | 86 | 86 |
+| test.c:85:18:85:23 | r9_3(int) = CompareNE r9_1, r9_2 | true | 86 | 86 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | false | 70 | 70 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | false | 99 | 99 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | false | 102 | 102 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | false | 103 | 103 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | false | 107 | 107 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | false | 109 | 109 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | false | 110 | 110 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | false | 113 | 113 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | true | 95 | 95 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | false | 70 | 70 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | false | 107 | 107 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | false | 109 | 109 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | false | 110 | 110 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | false | 113 | 113 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | true | 103 | 103 |
+| test.c:109:9:109:14 | r2_9(int) = CompareEQ r2_7, r2_8 | false | 109 | 109 |
+| test.c:109:9:109:14 | r2_9(int) = CompareEQ r2_7, r2_8 | false | 113 | 113 |
+| test.c:109:19:109:23 | r3_3(int) = CompareLT r3_1, r3_2 | false | 113 | 113 |
+| test.c:126:7:126:7 | r0_5(int) = Constant[1]  | true | 126 | 126 |
+| test.c:126:7:126:7 | r0_5(int) = Constant[1]  | true | 127 | 127 |
+| test.c:126:12:126:26 | r1_1(int) = Call r1_0 | true | 127 | 127 |
+| test.c:131:7:131:7 | r3_2(int) = Load r3_1, m3_0 | true | 132 | 132 |
+| test.c:137:7:137:7 | r0_4(int) = Constant[0]  | true | 138 | 138 |
+| test.c:137:7:137:7 | r0_4(int) = Constant[0]  | true | 139 | 139 |
+| test.c:138:9:138:9 | r1_1(int) = Load r1_0, m0_3 | true | 139 | 139 |
+| test.c:146:8:146:8 | r0_5(int) = Load r0_4, m0_3 | false | 147 | 147 |
+| test.c:152:10:152:10 | r0_7(int) = Load r0_6, m0_3 | true | 152 | 152 |
+| test.c:152:15:152:15 | r1_1(int) = Load r1_0, m0_5 | true | 152 | 152 |
+| test.cpp:18:8:18:12 | r0_7(bool) = CompareNE r0_5, r0_6 | true | 0 | 0 |
+| test.cpp:31:7:31:13 | r0_7(bool) = CompareEQ r0_5, r0_6 | false | 34 | 34 |
+| test.cpp:31:7:31:13 | r0_7(bool) = CompareEQ r0_5, r0_6 | true | 30 | 30 |
+| test.cpp:31:7:31:13 | r0_7(bool) = CompareEQ r0_5, r0_6 | true | 32 | 32 |
+| test.cpp:42:13:42:20 | r0_5(bool) = Call r0_4 | false | 53 | 53 |
+| test.cpp:42:13:42:20 | r0_5(bool) = Call r0_4 | true | 44 | 44 |
+irGuardsEnsure
+| test.c:7:9:7:13 | r0_16(int) = CompareGT r0_14, r0_15 | test.c:7:9:7:9 | r0_14(int) = Load r0_13, m0_3 | < | test.c:7:13:7:13 | r0_15(int) = Constant[0]  | 1 | 11 | 11 |
+| test.c:7:9:7:13 | r0_16(int) = CompareGT r0_14, r0_15 | test.c:7:9:7:9 | r0_14(int) = Load r0_13, m0_3 | >= | test.c:7:13:7:13 | r0_15(int) = Constant[0]  | 1 | 8 | 8 |
+| test.c:7:9:7:13 | r0_16(int) = CompareGT r0_14, r0_15 | test.c:7:13:7:13 | r0_15(int) = Constant[0]  | < | test.c:7:9:7:9 | r0_14(int) = Load r0_13, m0_3 | 0 | 8 | 8 |
+| test.c:7:9:7:13 | r0_16(int) = CompareGT r0_14, r0_15 | test.c:7:13:7:13 | r0_15(int) = Constant[0]  | >= | test.c:7:9:7:9 | r0_14(int) = Load r0_13, m0_3 | 0 | 11 | 11 |
+| test.c:17:8:17:12 | r16_13(int) = CompareLT r16_11, r16_12 | test.c:17:8:17:8 | r16_11(int) = Load r16_10, m0_3 | < | test.c:17:12:17:12 | r16_12(int) = Constant[0]  | 0 | 17 | 17 |
+| test.c:17:8:17:12 | r16_13(int) = CompareLT r16_11, r16_12 | test.c:17:8:17:8 | r16_11(int) = Load r16_10, m0_3 | < | test.c:17:12:17:12 | r16_12(int) = Constant[0]  | 0 | 18 | 18 |
+| test.c:17:8:17:12 | r16_13(int) = CompareLT r16_11, r16_12 | test.c:17:12:17:12 | r16_12(int) = Constant[0]  | >= | test.c:17:8:17:8 | r16_11(int) = Load r16_10, m0_3 | 1 | 17 | 17 |
+| test.c:17:8:17:12 | r16_13(int) = CompareLT r16_11, r16_12 | test.c:17:12:17:12 | r16_12(int) = Constant[0]  | >= | test.c:17:8:17:8 | r16_11(int) = Load r16_10, m0_3 | 1 | 18 | 18 |
+| test.c:17:17:17:21 | r17_3(int) = CompareGT r17_1, r17_2 | test.c:17:17:17:17 | r17_1(long) = Load r17_0, m16_0 | >= | test.c:17:21:17:21 | r17_2(long) = Constant[1]  | 1 | 18 | 18 |
+| test.c:17:17:17:21 | r17_3(int) = CompareGT r17_1, r17_2 | test.c:17:21:17:21 | r17_2(long) = Constant[1]  | < | test.c:17:17:17:17 | r17_1(long) = Load r17_0, m16_0 | 0 | 18 | 18 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 2 | 2 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 31 | 31 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 34 | 34 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 35 | 35 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 39 | 39 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 42 | 42 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 43 | 43 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 45 | 45 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 46 | 46 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 49 | 49 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 52 | 52 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 56 | 56 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 58 | 58 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 59 | 59 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | < | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 62 | 62 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | >= | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | 1 | 27 | 27 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | < | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 27 | 27 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 2 | 2 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 31 | 31 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 34 | 34 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 35 | 35 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 39 | 39 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 42 | 42 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 43 | 43 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 45 | 45 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 46 | 46 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 49 | 49 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 52 | 52 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 56 | 56 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 58 | 58 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 59 | 59 |
+| test.c:26:11:26:15 | r21_5(int) = CompareGT r21_3, r21_4 | test.c:26:15:26:15 | r21_4(int) = Constant[0]  | >= | test.c:26:11:26:11 | r21_3(int) = Load r21_2, m21_0 | 0 | 62 | 62 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | < | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 35 | 35 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 2 | 2 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 39 | 39 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 42 | 42 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 43 | 43 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 45 | 45 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 46 | 46 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 49 | 49 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 52 | 52 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 56 | 56 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 58 | 58 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 59 | 59 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | >= | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | 0 | 62 | 62 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 2 | 2 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 39 | 39 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 42 | 42 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 43 | 43 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 45 | 45 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 46 | 46 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 49 | 49 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 52 | 52 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 56 | 56 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 58 | 58 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 59 | 59 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | < | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 62 | 62 |
+| test.c:34:16:34:21 | r24_6(int) = CompareLT r24_4, r24_5 | test.c:34:20:34:21 | r24_5(int) = Constant[10]  | >= | test.c:34:16:34:16 | r24_4(int) = Load r24_3, m24_0 | 1 | 35 | 35 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | < | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | 0 | 42 | 42 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | < | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | 0 | 43 | 43 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | < | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | 0 | 45 | 45 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | < | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | 0 | 46 | 46 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | < | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | 0 | 49 | 49 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | < | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | 0 | 52 | 52 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | >= | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | 1 | 42 | 42 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | >= | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | 1 | 43 | 43 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | >= | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | 1 | 45 | 45 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | >= | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | 1 | 46 | 46 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | >= | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | 1 | 49 | 49 |
+| test.c:42:16:42:21 | r3_6(int) = CompareLT r3_4, r3_5 | test.c:42:20:42:21 | r3_5(int) = Constant[10]  | >= | test.c:42:16:42:16 | r3_4(int) = Load r3_3, m3_0 | 1 | 52 | 52 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | test.c:44:12:44:12 | r4_4(int) = Load r4_3, m2_5 | < | test.c:44:16:44:16 | r4_5(int) = Constant[0]  | 1 | 52 | 52 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | test.c:44:12:44:12 | r4_4(int) = Load r4_3, m2_5 | >= | test.c:44:16:44:16 | r4_5(int) = Constant[0]  | 1 | 45 | 45 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | test.c:44:12:44:12 | r4_4(int) = Load r4_3, m2_5 | >= | test.c:44:16:44:16 | r4_5(int) = Constant[0]  | 1 | 46 | 46 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | test.c:44:12:44:12 | r4_4(int) = Load r4_3, m2_5 | >= | test.c:44:16:44:16 | r4_5(int) = Constant[0]  | 1 | 49 | 49 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | test.c:44:16:44:16 | r4_5(int) = Constant[0]  | < | test.c:44:12:44:12 | r4_4(int) = Load r4_3, m2_5 | 0 | 45 | 45 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | test.c:44:16:44:16 | r4_5(int) = Constant[0]  | < | test.c:44:12:44:12 | r4_4(int) = Load r4_3, m2_5 | 0 | 46 | 46 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | test.c:44:16:44:16 | r4_5(int) = Constant[0]  | < | test.c:44:12:44:12 | r4_4(int) = Load r4_3, m2_5 | 0 | 49 | 49 |
+| test.c:44:12:44:16 | r4_6(int) = CompareGT r4_4, r4_5 | test.c:44:16:44:16 | r4_5(int) = Constant[0]  | >= | test.c:44:12:44:12 | r4_4(int) = Load r4_3, m2_5 | 0 | 52 | 52 |
+| test.c:45:16:45:20 | r5_3(int) = CompareGT r5_1, r5_2 | test.c:45:16:45:16 | r5_1(long) = Load r5_0, m4_2 | < | test.c:45:20:45:20 | r5_2(long) = Constant[0]  | 1 | 49 | 49 |
+| test.c:45:16:45:20 | r5_3(int) = CompareGT r5_1, r5_2 | test.c:45:16:45:16 | r5_1(long) = Load r5_0, m4_2 | >= | test.c:45:20:45:20 | r5_2(long) = Constant[0]  | 1 | 46 | 46 |
+| test.c:45:16:45:20 | r5_3(int) = CompareGT r5_1, r5_2 | test.c:45:20:45:20 | r5_2(long) = Constant[0]  | < | test.c:45:16:45:16 | r5_1(long) = Load r5_0, m4_2 | 0 | 46 | 46 |
+| test.c:45:16:45:20 | r5_3(int) = CompareGT r5_1, r5_2 | test.c:45:20:45:20 | r5_2(long) = Constant[0]  | >= | test.c:45:16:45:16 | r5_1(long) = Load r5_0, m4_2 | 0 | 49 | 49 |
+| test.c:58:9:58:14 | r10_5(int) = CompareEQ r10_3, r10_4 | test.c:58:9:58:9 | r10_3(int) = Load r10_2, m3_1 | != | test.c:58:14:58:14 | r10_4(int) = Constant[0]  | 0 | 58 | 58 |
+| test.c:58:9:58:14 | r10_5(int) = CompareEQ r10_3, r10_4 | test.c:58:9:58:9 | r10_3(int) = Load r10_2, m3_1 | != | test.c:58:14:58:14 | r10_4(int) = Constant[0]  | 0 | 62 | 62 |
+| test.c:58:9:58:14 | r10_5(int) = CompareEQ r10_3, r10_4 | test.c:58:14:58:14 | r10_4(int) = Constant[0]  | != | test.c:58:9:58:9 | r10_3(int) = Load r10_2, m3_1 | 0 | 58 | 58 |
+| test.c:58:9:58:14 | r10_5(int) = CompareEQ r10_3, r10_4 | test.c:58:14:58:14 | r10_4(int) = Constant[0]  | != | test.c:58:9:58:9 | r10_3(int) = Load r10_2, m3_1 | 0 | 62 | 62 |
+| test.c:58:19:58:23 | r11_3(int) = CompareLT r11_1, r11_2 | test.c:58:19:58:19 | r11_1(long) = Load r11_0, m10_0 | >= | test.c:58:23:58:23 | r11_2(long) = Constant[0]  | 0 | 62 | 62 |
+| test.c:58:19:58:23 | r11_3(int) = CompareLT r11_1, r11_2 | test.c:58:23:58:23 | r11_2(long) = Constant[0]  | < | test.c:58:19:58:19 | r11_1(long) = Load r11_0, m10_0 | 1 | 62 | 62 |
+| test.c:75:9:75:14 | r0_16(int) = CompareEQ r0_14, r0_15 | test.c:75:9:75:9 | r0_14(int) = Load r0_13, m0_3 | != | test.c:75:14:75:14 | r0_15(int) = Constant[0]  | 0 | 79 | 79 |
+| test.c:75:9:75:14 | r0_16(int) = CompareEQ r0_14, r0_15 | test.c:75:9:75:9 | r0_14(int) = Load r0_13, m0_3 | == | test.c:75:14:75:14 | r0_15(int) = Constant[0]  | 0 | 76 | 76 |
+| test.c:75:9:75:14 | r0_16(int) = CompareEQ r0_14, r0_15 | test.c:75:14:75:14 | r0_15(int) = Constant[0]  | != | test.c:75:9:75:9 | r0_14(int) = Load r0_13, m0_3 | 0 | 79 | 79 |
+| test.c:75:9:75:14 | r0_16(int) = CompareEQ r0_14, r0_15 | test.c:75:14:75:14 | r0_15(int) = Constant[0]  | == | test.c:75:9:75:9 | r0_14(int) = Load r0_13, m0_3 | 0 | 76 | 76 |
+| test.c:85:8:85:13 | r8_13(int) = CompareEQ r8_11, r8_12 | test.c:85:8:85:8 | r8_11(int) = Load r8_10, m0_3 | == | test.c:85:13:85:13 | r8_12(int) = Constant[0]  | 0 | 85 | 85 |
+| test.c:85:8:85:13 | r8_13(int) = CompareEQ r8_11, r8_12 | test.c:85:8:85:8 | r8_11(int) = Load r8_10, m0_3 | == | test.c:85:13:85:13 | r8_12(int) = Constant[0]  | 0 | 86 | 86 |
+| test.c:85:8:85:13 | r8_13(int) = CompareEQ r8_11, r8_12 | test.c:85:13:85:13 | r8_12(int) = Constant[0]  | == | test.c:85:8:85:8 | r8_11(int) = Load r8_10, m0_3 | 0 | 85 | 85 |
+| test.c:85:8:85:13 | r8_13(int) = CompareEQ r8_11, r8_12 | test.c:85:13:85:13 | r8_12(int) = Constant[0]  | == | test.c:85:8:85:8 | r8_11(int) = Load r8_10, m0_3 | 0 | 86 | 86 |
+| test.c:85:18:85:23 | r9_3(int) = CompareNE r9_1, r9_2 | test.c:85:18:85:18 | r9_1(long) = Load r9_0, m8_0 | != | test.c:85:23:85:23 | r9_2(long) = Constant[0]  | 0 | 86 | 86 |
+| test.c:85:18:85:23 | r9_3(int) = CompareNE r9_1, r9_2 | test.c:85:23:85:23 | r9_2(long) = Constant[0]  | != | test.c:85:18:85:18 | r9_1(long) = Load r9_0, m8_0 | 0 | 86 | 86 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | != | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | 0 | 95 | 95 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | == | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | 0 | 70 | 70 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | == | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | 0 | 99 | 99 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | == | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | 0 | 102 | 102 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | == | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | 0 | 103 | 103 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | == | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | 0 | 107 | 107 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | == | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | 0 | 109 | 109 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | == | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | 0 | 110 | 110 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | == | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | 0 | 113 | 113 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | != | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | 0 | 95 | 95 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | == | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | 0 | 70 | 70 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | == | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | 0 | 99 | 99 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | == | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | 0 | 102 | 102 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | == | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | 0 | 103 | 103 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | == | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | 0 | 107 | 107 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | == | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | 0 | 109 | 109 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | == | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | 0 | 110 | 110 |
+| test.c:94:11:94:16 | r13_5(int) = CompareNE r13_3, r13_4 | test.c:94:16:94:16 | r13_4(int) = Constant[0]  | == | test.c:94:11:94:11 | r13_3(int) = Load r13_2, m13_0 | 0 | 113 | 113 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | < | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | 0 | 103 | 103 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | >= | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | 0 | 70 | 70 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | >= | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | 0 | 107 | 107 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | >= | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | 0 | 109 | 109 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | >= | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | 0 | 110 | 110 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | >= | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | 0 | 113 | 113 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | < | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | 1 | 70 | 70 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | < | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | 1 | 107 | 107 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | < | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | 1 | 109 | 109 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | < | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | 1 | 110 | 110 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | < | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | 1 | 113 | 113 |
+| test.c:102:16:102:21 | r16_6(int) = CompareLT r16_4, r16_5 | test.c:102:20:102:21 | r16_5(int) = Constant[10]  | >= | test.c:102:16:102:16 | r16_4(int) = Load r16_3, m16_0 | 1 | 103 | 103 |
+| test.c:109:9:109:14 | r2_9(int) = CompareEQ r2_7, r2_8 | test.c:109:9:109:9 | r2_7(int) = Load r2_6, m13_0 | != | test.c:109:14:109:14 | r2_8(int) = Constant[0]  | 0 | 109 | 109 |
+| test.c:109:9:109:14 | r2_9(int) = CompareEQ r2_7, r2_8 | test.c:109:9:109:9 | r2_7(int) = Load r2_6, m13_0 | != | test.c:109:14:109:14 | r2_8(int) = Constant[0]  | 0 | 113 | 113 |
+| test.c:109:9:109:14 | r2_9(int) = CompareEQ r2_7, r2_8 | test.c:109:14:109:14 | r2_8(int) = Constant[0]  | != | test.c:109:9:109:9 | r2_7(int) = Load r2_6, m13_0 | 0 | 109 | 109 |
+| test.c:109:9:109:14 | r2_9(int) = CompareEQ r2_7, r2_8 | test.c:109:14:109:14 | r2_8(int) = Constant[0]  | != | test.c:109:9:109:9 | r2_7(int) = Load r2_6, m13_0 | 0 | 113 | 113 |
+| test.c:109:19:109:23 | r3_3(int) = CompareLT r3_1, r3_2 | test.c:109:19:109:19 | r3_1(long) = Load r3_0, m16_2 | >= | test.c:109:23:109:23 | r3_2(long) = Constant[0]  | 0 | 113 | 113 |
+| test.c:109:19:109:23 | r3_3(int) = CompareLT r3_1, r3_2 | test.c:109:23:109:23 | r3_2(long) = Constant[0]  | < | test.c:109:19:109:19 | r3_1(long) = Load r3_0, m16_2 | 1 | 113 | 113 |
+| test.cpp:18:8:18:12 | r0_7(bool) = CompareNE r0_5, r0_6 | test.cpp:18:8:18:10 | r0_5(X *) = Call r0_4, this:r0_3 | != | test.cpp:18:8:18:12 | r0_6(X *) = Constant[0]  | 0 | 0 | 0 |
+| test.cpp:18:8:18:12 | r0_7(bool) = CompareNE r0_5, r0_6 | test.cpp:18:8:18:12 | r0_6(X *) = Constant[0]  | != | test.cpp:18:8:18:10 | r0_5(X *) = Call r0_4, this:r0_3 | 0 | 0 | 0 |
+| test.cpp:31:7:31:13 | r0_7(bool) = CompareEQ r0_5, r0_6 | test.cpp:31:7:31:7 | r0_5(int) = Load r0_4, m0_3 | != | test.cpp:31:12:31:13 | r0_6(int) = Constant[-1]  | 0 | 34 | 34 |
+| test.cpp:31:7:31:13 | r0_7(bool) = CompareEQ r0_5, r0_6 | test.cpp:31:7:31:7 | r0_5(int) = Load r0_4, m0_3 | == | test.cpp:31:12:31:13 | r0_6(int) = Constant[-1]  | 0 | 30 | 30 |
+| test.cpp:31:7:31:13 | r0_7(bool) = CompareEQ r0_5, r0_6 | test.cpp:31:7:31:7 | r0_5(int) = Load r0_4, m0_3 | == | test.cpp:31:12:31:13 | r0_6(int) = Constant[-1]  | 0 | 32 | 32 |
+| test.cpp:31:7:31:13 | r0_7(bool) = CompareEQ r0_5, r0_6 | test.cpp:31:12:31:13 | r0_6(int) = Constant[-1]  | != | test.cpp:31:7:31:7 | r0_5(int) = Load r0_4, m0_3 | 0 | 34 | 34 |
+| test.cpp:31:7:31:13 | r0_7(bool) = CompareEQ r0_5, r0_6 | test.cpp:31:12:31:13 | r0_6(int) = Constant[-1]  | == | test.cpp:31:7:31:7 | r0_5(int) = Load r0_4, m0_3 | 0 | 30 | 30 |
+| test.cpp:31:7:31:13 | r0_7(bool) = CompareEQ r0_5, r0_6 | test.cpp:31:12:31:13 | r0_6(int) = Constant[-1]  | == | test.cpp:31:7:31:7 | r0_5(int) = Load r0_4, m0_3 | 0 | 32 | 32 |
diff --git a/cpp/ql/test/library-tests/controlflow/guards-ir/tests.ql b/cpp/ql/test/library-tests/controlflow/guards-ir/tests.ql
new file mode 100644
index 000000000000..2bb8b2f9fa99
--- /dev/null
+++ b/cpp/ql/test/library-tests/controlflow/guards-ir/tests.ql
@@ -0,0 +1,91 @@
+import cpp
+import semmle.code.cpp.controlflow.IRGuards
+
+query predicate astGuards(GuardCondition guard) {
+  any()
+}
+
+query predicate astGuardsCompare(int startLine, string msg) {
+  exists(GuardCondition guard, Expr left, Expr right, int k, string which, string op |
+    exists(boolean sense |
+      sense = true and which = "true"
+      or sense = false and which = "false"
+      |
+      guard.comparesLt(left, right, k, true, sense) and op = " < "
+      or
+      guard.comparesLt(left, right, k, false, sense) and op = " >= "
+      or
+      guard.comparesEq(left, right, k, true, sense) and op = " == "
+      or 
+      guard.comparesEq(left, right, k, false, sense)  and op = " != "
+    )
+    and startLine = guard.getLocation().getStartLine()
+    and msg = left + op + right + "+" + k + " when " + guard + " is " + which
+  )
+}
+
+query predicate astGuardsControl(GuardCondition guard, boolean sense, int start, int end) {
+  exists(BasicBlock block |
+         guard.controls(block, sense) and
+         block.hasLocationInfo(_, start, _, end, _)
+  )
+}
+
+query predicate astGuardsEnsure(GuardCondition guard, Expr left, string op, Expr right, int k, int start, int end)
+{
+  exists(BasicBlock block |
+   guard.ensuresLt(left, right, k, block, true) and op = "<"
+   or
+   guard.ensuresLt(left, right, k, block, false) and op = ">=" 
+   or
+   guard.ensuresEq(left, right, k, block, true) and op = "=="
+   or
+   guard.ensuresEq(left, right, k, block, false) and op = "!="
+   |
+   block.hasLocationInfo(_, start, _, end, _)
+  )
+}
+
+query predicate irGuards(IRGuardCondition guard) {
+  any()
+}
+
+query predicate irGuardsCompare(int startLine, string msg) {
+  exists(IRGuardCondition guard, Instruction left, Instruction right, int k, string which, string op |
+    exists(boolean sense |
+      sense = true and which = "true"
+      or sense = false and which = "false"
+      |
+      guard.comparesLt(left, right, k, true, sense) and op = " < "
+      or
+      guard.comparesLt(left, right, k, false, sense) and op = " >= "
+      or
+      guard.comparesEq(left, right, k, true, sense) and op = " == "
+      or 
+      guard.comparesEq(left, right, k, false, sense)  and op = " != "
+    )
+    and startLine = guard.getLocation().getStartLine()
+    and msg = left.getUnconvertedResultExpression() + op + right.getUnconvertedResultExpression() + "+" + k + " when " + guard + " is " + which
+  )
+}
+query predicate irGuardsControl(IRGuardCondition guard, boolean sense, int start, int end) {
+  exists(IRBlock block |
+    guard.controls(block, sense) and
+    block.getLocation().hasLocationInfo(_, start, _, end, _)
+  )
+}
+
+query predicate irGuardsEnsure(IRGuardCondition guard, Instruction left, string op, Instruction right, int k, int start, int end)
+{
+  exists(IRBlock block |
+   guard.ensuresLt(left, right, k, block, true) and op = "<"
+   or
+   guard.ensuresLt(left, right, k, block, false) and op = ">=" 
+   or
+   guard.ensuresEq(left, right, k, block, true) and op = "=="
+   or
+   guard.ensuresEq(left, right, k, block, false) and op = "!="
+   |
+   block.getLocation().hasLocationInfo(_, start, _, end, _)
+  )
+}