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| author | Devang Patel <dpatel@apple.com> | 2008-03-19 23:05:52 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2008-03-19 23:05:52 +0000 |
| commit | 86ad6a27be4d2ccd889e5af59e959bf45cf71b94 (patch) | |
| tree | 6a831fe70cf28b3e81b91331af11193c2d031f2b /lib | |
| parent | 0e7614e4f71407a59620555f432ad156a5d04754 (diff) | |
| download | external_llvm-86ad6a27be4d2ccd889e5af59e959bf45cf71b94.zip external_llvm-86ad6a27be4d2ccd889e5af59e959bf45cf71b94.tar.gz external_llvm-86ad6a27be4d2ccd889e5af59e959bf45cf71b94.tar.bz2 | |
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48567 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/Scalar/LoopUnroll.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
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 @@ 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 |