[Profile] Do not annotate select insts not covered in profile.

Fixed PR/30466 llvm-svn: 282009
llvm · Sep 20, 2016 · c736828 · c736828
1 parent fc0929a
commit c736828
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp b/llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
@@ -967,7 +967,8 @@ void SelectInstVisitor::annotateOneSelectInst(SelectInst &SI) {
   // False Count
   SCounts[1] = (TotalCount > SCounts[0] ? TotalCount - SCounts[0] : 0);
   uint64_t MaxCount = std::max(SCounts[0], SCounts[1]);
-  setProfMetadata(F.getParent(), &SI, SCounts, MaxCount);
+  if (MaxCount)
+    setProfMetadata(F.getParent(), &SI, SCounts, MaxCount);
 }
 
 void SelectInstVisitor::visitSelectInst(SelectInst &SI) {