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| author | Bob Wilson <bob.wilson@apple.com> | 2009-11-17 17:06:18 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2009-11-17 17:06:18 +0000 |
| commit | 56ea69c3a251434db3fef489881368e29c95712d (patch) | |
| tree | a968fd1ff685801fa63c9905de0d35bd1bffe2b1 /lib/CodeGen/BranchFolding.h | |
| parent | 2cd8abbf8631921c744d021214dd21998a25a946 (diff) | |
| download | llvm-56ea69c3a251434db3fef489881368e29c95712d.tar.gz llvm-56ea69c3a251434db3fef489881368e29c95712d.tar.bz2 llvm-56ea69c3a251434db3fef489881368e29c95712d.tar.xz | |
Perform tail duplication only once, after tail merging is complete.
It was too difficult to keep the heuristics for merging and duplication
consistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89105 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/BranchFolding.h')
| -rw-r--r-- | lib/CodeGen/BranchFolding.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/CodeGen/BranchFolding.h b/lib/CodeGen/BranchFolding.h index 648ec92b1e..4920755c22 100644 --- a/lib/CodeGen/BranchFolding.h +++ b/lib/CodeGen/BranchFolding.h @@ -105,9 +105,8 @@ namespace llvm { unsigned CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB, unsigned maxCommonTailLength); - bool TailDuplicate(MachineBasicBlock *TailBB, - bool PrevFallsThrough, - MachineFunction &MF); + bool TailDuplicateBlocks(MachineFunction &MF); + bool TailDuplicate(MachineBasicBlock *TailBB, MachineFunction &MF); bool OptimizeBranches(MachineFunction &MF); bool OptimizeBlock(MachineBasicBlock *MBB); |