diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/Transforms/Utils/BasicBlockUtils.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/include/llvm/Transforms/Utils/BasicBlockUtils.h b/include/llvm/Transforms/Utils/BasicBlockUtils.h index 47d6895..e766d72 100644 --- a/include/llvm/Transforms/Utils/BasicBlockUtils.h +++ b/include/llvm/Transforms/Utils/BasicBlockUtils.h @@ -43,11 +43,9 @@ void FoldSingleEntryPHINodes(BasicBlock *BB); /// it is ultimately unused or if it reaches an unused cycle. void DeleteDeadPHIs(BasicBlock *BB); -/// MergeBlockIntoPredecessor - Folds a basic block into its predecessor if it -/// only has one predecessor, and that predecessor only has one successor. -/// If a Pass is given, the LoopInfo and DominatorTree analyses will be kept -/// current. Returns the combined block, or null if no merging was performed. -BasicBlock *MergeBlockIntoPredecessor(BasicBlock* BB, Pass* P = 0); +/// MergeBlockIntoPredecessor - Attempts to merge a block into its predecessor, +/// if possible. The return value indicates success or failure. +bool MergeBlockIntoPredecessor(BasicBlock* BB, Pass* P = 0); // ReplaceInstWithValue - Replace all uses of an instruction (specified by BI) // with a value, then remove and delete the original instruction. |