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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-01-30 20:38:12 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-01-30 20:38:12 +0000 |
| commit | 8352062e52eed6e50786fdb89f5e601fdcbe0d90 (patch) | |
| tree | 0d937f32df941e1792e89a6f016893dcb69ef799 | |
| parent | 7af00c0f6e4a5612a2438269a6f8a71b0ae9190e (diff) | |
| download | external_llvm-8352062e52eed6e50786fdb89f5e601fdcbe0d90.zip external_llvm-8352062e52eed6e50786fdb89f5e601fdcbe0d90.tar.gz external_llvm-8352062e52eed6e50786fdb89f5e601fdcbe0d90.tar.bz2 | |
Respect the -tail-dup-size command line option even when optimizing for size.
This is similar to the -unroll-threshold option. There should be no change in
behavior when -tail-dup-size is not explicit on the llc command line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124564 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/TailDuplication.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/TailDuplication.cpp b/lib/CodeGen/TailDuplication.cpp index 15aed34..83706de 100644 --- a/lib/CodeGen/TailDuplication.cpp +++ b/lib/CodeGen/TailDuplication.cpp @@ -459,7 +459,8 @@ TailDuplicatePass::TailDuplicate(MachineBasicBlock *TailBB, MachineFunction &MF, // duplicate only one, because one branch instruction can be eliminated to // compensate for the duplication. unsigned MaxDuplicateCount; - if (MF.getFunction()->hasFnAttr(Attribute::OptimizeForSize)) + if (TailDuplicateSize.getNumOccurrences() == 0 && + MF.getFunction()->hasFnAttr(Attribute::OptimizeForSize)) MaxDuplicateCount = 1; else MaxDuplicateCount = TailDuplicateSize; |