diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2011-07-17 15:36:56 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2011-07-17 15:36:56 +0000 |
| commit | 411bd29eea3c360d5b48a18a17b5e87f5671af0e (patch) | |
| tree | c8086addb211fa670a9d2b1038d8c2e453229755 /lib/CodeGen/BranchFolding.h | |
| parent | 56fe8f14099930935e3870e3e823c322a85c1c89 (diff) | |
Diffstat (limited to 'lib/CodeGen/BranchFolding.h')
| -rw-r--r-- | lib/CodeGen/BranchFolding.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/BranchFolding.h b/lib/CodeGen/BranchFolding.h index 4daf4ecfe599..df795dfc248e 100644 --- a/lib/CodeGen/BranchFolding.h +++ b/lib/CodeGen/BranchFolding.h @@ -10,6 +10,7 @@ #ifndef LLVM_CODEGEN_BRANCHFOLDING_HPP #define LLVM_CODEGEN_BRANCHFOLDING_HPP +#include "llvm/ADT/SmallPtrSet.h" #include "llvm/CodeGen/MachineBasicBlock.h" #include <vector> @@ -47,6 +48,7 @@ namespace llvm { }; typedef std::vector<MergePotentialsElt>::iterator MPIterator; std::vector<MergePotentialsElt> MergePotentials; + SmallPtrSet<const MachineBasicBlock*, 2> TriedMerging; class SameTailElt { MPIterator MPIter; @@ -93,6 +95,8 @@ namespace llvm { bool TailMergeBlocks(MachineFunction &MF); bool TryTailMergeBlocks(MachineBasicBlock* SuccBB, MachineBasicBlock* PredBB); + void MaintainLiveIns(MachineBasicBlock *CurMBB, + MachineBasicBlock *NewMBB); void ReplaceTailWithBranchTo(MachineBasicBlock::iterator OldInst, MachineBasicBlock *NewDest); MachineBasicBlock *SplitMBBAt(MachineBasicBlock &CurMBB, |