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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48567 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/LoopUnroll.cpp b/lib/Transforms/Scalar/LoopUnroll.cpp
index 71a5955..1962c14 100644
--- a/lib/Transforms/Scalar/LoopUnroll.cpp
+++ b/lib/Transforms/Scalar/LoopUnroll.cpp
@@ -101,6 +101,10 @@
} else if (isa<DbgInfoIntrinsic>(I)) {
// Ignore debug instructions
} else if (isa<CallInst>(I)) {
+ // Estimate size overhead introduced by call instructions which
+ // is higher than other instructions. Here 3 and 10 are magic
+ // numbers that help one isolated test case from PR2067 without
+ // negatively impacting measured benchmarks.
if (isa<IntrinsicInst>(I))
Size = Size + 3;
else