commit 8bed85099fd6ea5f408e5dbaa7c1e60dade7e159
author Evan Cheng <evan.cheng@apple.com> Tue Jun 22 01:18:16 2010 +0000
committer Evan Cheng <evan.cheng@apple.com> Tue Jun 22 01:18:16 2010 +0000
tree 8ffb7495b6a7d723ec73603ac30feef7874e54a0
parent 84c7566688cfbcb75436e5277b699988e949b255

Tail merging pass shall not break up IT blocks. rdar://8115404


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106517 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/BranchFolding.h

diff --git a/lib/CodeGen/BranchFolding.h b/lib/CodeGen/BranchFolding.h
index b087395..15dfa7f 100644
--- a/lib/CodeGen/BranchFolding.h
+++ b/lib/CodeGen/BranchFolding.h
@@ -102,8 +102,9 @@
                               MachineBasicBlock *PredBB);
     void RemoveBlocksWithHash(unsigned CurHash, MachineBasicBlock* SuccBB,
                                                 MachineBasicBlock* PredBB);
-    unsigned CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB,
-                                       unsigned maxCommonTailLength);
+    bool CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB,
+                                   unsigned maxCommonTailLength,
+                                   unsigned &commonTailIndex);
 
     bool OptimizeBranches(MachineFunction &MF);
     bool OptimizeBlock(MachineBasicBlock *MBB);