diff options
author | Bob Wilson <bob.wilson@apple.com> | 2009-11-26 00:32:21 +0000 |
---|---|---|
committer | Bob Wilson <bob.wilson@apple.com> | 2009-11-26 00:32:21 +0000 |
commit | 15acadde5f87703da5f36721a19c09a7e3f97f53 (patch) | |
tree | 379bad402a664a687cd94163cc84caa3f2438f41 /lib/CodeGen/BranchFolding.h | |
parent | 36ccdd49f50535b74ce4d54561e426907629270a (diff) |
Split tail duplication into a separate pass. This is needed to avoid
running tail duplication when doing branch folding for if-conversion, and
we also want to be able to run tail duplication earlier to fix some
reg alloc problems. Move the CanFallThrough function from BranchFolding
to MachineBasicBlock so that it can be shared by TailDuplication.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89904 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/BranchFolding.h')
-rw-r--r-- | lib/CodeGen/BranchFolding.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/lib/CodeGen/BranchFolding.h b/lib/CodeGen/BranchFolding.h index 4920755c227..b0873956406 100644 --- a/lib/CodeGen/BranchFolding.h +++ b/lib/CodeGen/BranchFolding.h @@ -105,18 +105,10 @@ namespace llvm { unsigned CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB, unsigned maxCommonTailLength); - bool TailDuplicateBlocks(MachineFunction &MF); - bool TailDuplicate(MachineBasicBlock *TailBB, MachineFunction &MF); - bool OptimizeBranches(MachineFunction &MF); bool OptimizeBlock(MachineBasicBlock *MBB); void RemoveDeadBlock(MachineBasicBlock *MBB); bool OptimizeImpDefsBlock(MachineBasicBlock *MBB); - - bool CanFallThrough(MachineBasicBlock *CurBB); - bool CanFallThrough(MachineBasicBlock *CurBB, bool BranchUnAnalyzable, - MachineBasicBlock *TBB, MachineBasicBlock *FBB, - const SmallVectorImpl<MachineOperand> &Cond); }; } |