diff options
Diffstat (limited to 'contrib/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp')
| -rw-r--r-- | contrib/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp b/contrib/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp index 602e8ba..983f025 100644 --- a/contrib/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp +++ b/contrib/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp @@ -265,6 +265,18 @@ BasicBlock *llvm::SplitEdge(BasicBlock *BB, BasicBlock *Succ, Pass *P) { return SplitBlock(BB, BB->getTerminator(), P); } +unsigned llvm::SplitAllCriticalEdges(Function &F, Pass *P) { + unsigned NumBroken = 0; + for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) { + TerminatorInst *TI = I->getTerminator(); + if (TI->getNumSuccessors() > 1 && !isa<IndirectBrInst>(TI)) + for (unsigned i = 0, e = TI->getNumSuccessors(); i != e; ++i) + if (SplitCriticalEdge(TI, i, P)) + ++NumBroken; + } + return NumBroken; +} + /// SplitBlock - Split the specified block at the specified instruction - every /// thing before SplitPt stays in Old and everything starting with SplitPt moves /// to a new block. The two blocks are joined by an unconditional branch and |
