[llvm-commits] [llvm] r86873 - /llvm/trunk/lib/CodeGen/BranchFolding.h

[Dan Gohman]

Author: djg
Date: Wed Nov 11 13:49:34 2009
New Revision: 86873

URL: http://llvm.org/viewvc/llvm-project?rev=86873&view=rev
Log:
Check in the changes to this file too.

Modified:
    llvm/trunk/lib/CodeGen/BranchFolding.h

Modified: llvm/trunk/lib/CodeGen/BranchFolding.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/BranchFolding.h?rev=86873&r1=86872&r2=86873&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/BranchFolding.h (original)
+++ llvm/trunk/lib/CodeGen/BranchFolding.h Wed Nov 11 13:49:34 2009
@@ -44,18 +44,24 @@
     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);