From 3c1f841a41e672eb78dba7ebcc9fdfa485dbea7c Mon Sep 17 00:00:00 2001
From: Scott Carda <sccarda@microsoft.com>
Date: Fri, 12 Jun 2020 16:02:12 -0700
Subject: [PATCH] Added NoOp to precondition dependency list for classical
 control.

---
 src/QsCompiler/Compiler/RewriteSteps/ClassicallyControlled.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/QsCompiler/Compiler/RewriteSteps/ClassicallyControlled.cs b/src/QsCompiler/Compiler/RewriteSteps/ClassicallyControlled.cs
index cbd1a86cf5..1a08c60432 100644
--- a/src/QsCompiler/Compiler/RewriteSteps/ClassicallyControlled.cs
+++ b/src/QsCompiler/Compiler/RewriteSteps/ClassicallyControlled.cs
@@ -44,6 +44,8 @@ public bool PreconditionVerification(QsCompilation compilation)
                 .ToHashSet();
             var requiredBuiltIns = new HashSet<QsQualifiedName>()
             {
+                BuiltIn.NoOp.FullName,
+                
                 BuiltIn.ApplyIfZero.FullName,
                 BuiltIn.ApplyIfZeroA.FullName,
                 BuiltIn.ApplyIfZeroC.FullName,