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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48567 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2008-03-19 23:05:52 +00:00
parent 230293b4c5
commit ac3844d3f9
1 changed files with 4 additions and 0 deletions
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4
lib/Transforms/Scalar/LoopUnroll.cpp
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@ -101,6 +101,10 @@ static unsigned ApproximateLoopSize(const Loop *L) {
} 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