diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp b/llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp index 3b4b0b5de07..f5e4b53f6d9 100644 --- a/llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp +++ b/llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp @@ -153,6 +153,10 @@ llvm::SplitCriticalEdge(Instruction *TI, unsigned SuccNum, if (isa<CallBrInst>(TI) && SuccNum > 0) return nullptr; + if (Options.IgnoreUnreachableDests && + isa<UnreachableInst>(DestBB->getFirstNonPHIOrDbgOrLifetime())) + return nullptr; + // Create a new basic block, linking it into the CFG. BasicBlock *NewBB = BasicBlock::Create(TI->getContext(), TIBB->getName() + "." + DestBB->getName() + "_crit_edge"); |
