diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/BranchFolding.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/BranchFolding.h b/llvm/lib/CodeGen/BranchFolding.h index 9763e3339a2..f1ebc4fefb6 100644 --- a/llvm/lib/CodeGen/BranchFolding.h +++ b/llvm/lib/CodeGen/BranchFolding.h @@ -44,18 +44,24 @@ namespace llvm { RegScavenger *RS; bool TailMergeBlocks(MachineFunction &MF); - bool TryMergeBlocks(MachineBasicBlock* SuccBB, - MachineBasicBlock* PredBB); + bool TryTailMergeBlocks(MachineBasicBlock* SuccBB, + MachineBasicBlock* PredBB); void ReplaceTailWithBranchTo(MachineBasicBlock::iterator OldInst, MachineBasicBlock *NewDest); MachineBasicBlock *SplitMBBAt(MachineBasicBlock &CurMBB, MachineBasicBlock::iterator BBI1); - unsigned ComputeSameTails(unsigned CurHash, unsigned minCommonTailLength); + unsigned ComputeSameTails(unsigned CurHash, unsigned minCommonTailLength, + MachineBasicBlock *SuccBB, + MachineBasicBlock *PredBB); void RemoveBlocksWithHash(unsigned CurHash, MachineBasicBlock* SuccBB, MachineBasicBlock* PredBB); unsigned CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB, unsigned maxCommonTailLength); + bool TailDuplicate(MachineBasicBlock *TailBB, + bool PrevFallsThrough, + MachineFunction &MF); + bool OptimizeBranches(MachineFunction &MF); bool OptimizeBlock(MachineBasicBlock *MBB); void RemoveDeadBlock(MachineBasicBlock *MBB); |
