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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86873 91177308-0d34-0410-b5e6-96231b3b80d8
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Dan Gohman 2009-11-11 19:49:34 +00:00
parent 2210c0bea8
commit 412a3b90d1
1 changed files with 9 additions and 3 deletions
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10
lib/CodeGen/BranchFolding.h
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@ -44,18 +44,24 @@ namespace llvm {
RegScavenger *RS; RegScavenger *RS;
bool TailMergeBlocks(MachineFunction &MF); bool TailMergeBlocks(MachineFunction &MF);
bool TryMergeBlocks(MachineBasicBlock* SuccBB, bool TryTailMergeBlocks(MachineBasicBlock* SuccBB,
MachineBasicBlock* PredBB); MachineBasicBlock* PredBB);
void ReplaceTailWithBranchTo(MachineBasicBlock::iterator OldInst, void ReplaceTailWithBranchTo(MachineBasicBlock::iterator OldInst,
MachineBasicBlock *NewDest); MachineBasicBlock *NewDest);
MachineBasicBlock *SplitMBBAt(MachineBasicBlock &CurMBB, MachineBasicBlock *SplitMBBAt(MachineBasicBlock &CurMBB,
MachineBasicBlock::iterator BBI1); 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, void RemoveBlocksWithHash(unsigned CurHash, MachineBasicBlock* SuccBB,
MachineBasicBlock* PredBB); MachineBasicBlock* PredBB);
unsigned CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB, unsigned CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB,
unsigned maxCommonTailLength); unsigned maxCommonTailLength);
bool TailDuplicate(MachineBasicBlock *TailBB,
bool PrevFallsThrough,
MachineFunction &MF);
bool OptimizeBranches(MachineFunction &MF); bool OptimizeBranches(MachineFunction &MF);
bool OptimizeBlock(MachineBasicBlock *MBB); bool OptimizeBlock(MachineBasicBlock *MBB);
void RemoveDeadBlock(MachineBasicBlock *MBB); void RemoveDeadBlock(MachineBasicBlock *MBB);