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| author | Chris Lattner <sabre@nondot.org> | 2009-11-10 05:59:26 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-11-10 05:59:26 +0000 |
| commit | dce94d92df77da125a1c1256a9294db891a9db9c (patch) | |
| tree | 9378efff65e77213be7347e41b9b7e7a7466c344 /include/llvm/Transforms/Utils/Local.h | |
| parent | c5e1ae13132ee1df5b4d32818246d641cbc8a129 (diff) | |
refactor TryToSimplifyUncondBranchFromEmptyBlock out of SimplifyCFG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86666 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Transforms/Utils/Local.h')
| -rw-r--r-- | include/llvm/Transforms/Utils/Local.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/llvm/Transforms/Utils/Local.h b/include/llvm/Transforms/Utils/Local.h index 419029f10e..24be83cb3d 100644 --- a/include/llvm/Transforms/Utils/Local.h +++ b/include/llvm/Transforms/Utils/Local.h @@ -85,7 +85,14 @@ void RecursivelyDeleteDeadPHINode(PHINode *PN); /// void MergeBasicBlockIntoOnlyPred(BasicBlock *BB, Pass *P = 0); - + +/// TryToSimplifyUncondBranchFromEmptyBlock - BB is known to contain an +/// unconditional branch, and contains no instructions other than PHI nodes, +/// potential debug intrinsics and the branch. If possible, eliminate BB by +/// rewriting all the predecessors to branch to the successor block and return +/// true. If we can't transform, return false. +bool TryToSimplifyUncondBranchFromEmptyBlock(BasicBlock *BB); + /// SimplifyCFG - This function is used to do simplification of a CFG. For /// example, it adjusts branches to branches to eliminate the extra hop, it /// eliminates unreachable basic blocks, and does other "peephole" optimization |