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JIT: experimental changes to redundant branch opts #88527

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AndyAyersMS wants to merge 4 commits into from
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JIT: experimental changes to redundant branch opts #88527

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4bce8ee
JIT: experimental changes to redundant branch opts
AndyAyersMS Mar 21, 2023
f52505e
gcc doesn't like comment lines ending in backslashes
AndyAyersMS Jul 8, 2023
20ad429
make sure to match up the final VN and the operands available
AndyAyersMS Jul 12, 2023
cdd8258
fix dump formatting
AndyAyersMS Jul 12, 2023
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6 changes: 6 additions & 0 deletions src/coreclr/jit/compiler.h
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Original file line number Diff line number Diff line change
Expand Up @@ -7267,6 +7267,12 @@ class Compiler
PhaseStatus optRedundantBranches();
bool optRedundantRelop(BasicBlock* const block);
bool optRedundantBranch(BasicBlock* const block);
bool optHasIgnorableSideEffects(BasicBlock* const block);
BasicBlock* optTraceLinearFlow(BasicBlock* const fromBlock,
BasicBlock* const toBlock,
bool* hasSideEffects,
bool tryRepair);
bool optSubsumeRelop(BasicBlock* const block, BasicBlock* const domBlock, bool trueReaches);
bool optJumpThreadDom(BasicBlock* const block, BasicBlock* const domBlock, bool domIsSameRelop);
bool optJumpThreadPhi(BasicBlock* const block, GenTree* tree, ValueNum treeNormVN);
bool optJumpThreadCheck(BasicBlock* const block, BasicBlock* const domBlock);
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2 changes: 1 addition & 1 deletion src/coreclr/jit/gentree.h
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Expand Up @@ -2082,7 +2082,7 @@ struct GenTree

void ClearUnsigned()
{
assert(OperIs(GT_ADD, GT_SUB, GT_CAST) || OperIsMul());
assert(OperIs(GT_ADD, GT_SUB, GT_CAST, GT_LE, GT_LT, GT_GT, GT_GE) || OperIsMul());
gtFlags &= ~GTF_UNSIGNED;
}

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