diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/SimplifyCFG.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyCFG.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp index 155fcc5..9ac3be1 100644 --- a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp @@ -5959,7 +5959,11 @@ bool SimplifyCFGOpt::turnSwitchRangeIntoICmp(SwitchInst *SI, unsigned PreviousEdges = OtherCases->size(); if (OtherDest == SI->getDefaultDest()) ++PreviousEdges; - for (unsigned I = 0, E = PreviousEdges - 1; I != E; ++I) + unsigned E = PreviousEdges - 1; + // Remove all incoming values from OtherDest if OtherDest is unreachable. + if (NewBI->isUnconditional()) + ++E; + for (unsigned I = 0; I != E; ++I) cast<PHINode>(BBI)->removeIncomingValue(SI->getParent()); } |