diff options
Diffstat (limited to 'lib/Transforms/Utils/BreakCriticalEdges.cpp')
| -rw-r--r-- | lib/Transforms/Utils/BreakCriticalEdges.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Transforms/Utils/BreakCriticalEdges.cpp b/lib/Transforms/Utils/BreakCriticalEdges.cpp index 178e8ca195..8e00f9c613 100644 --- a/lib/Transforms/Utils/BreakCriticalEdges.cpp +++ b/lib/Transforms/Utils/BreakCriticalEdges.cpp @@ -119,8 +119,11 @@ bool llvm::SplitCriticalEdge(TerminatorInst *TI, unsigned SuccNum, Pass *P) { // for (BasicBlock::iterator I = DestBB->begin(); PHINode *PN = dyn_cast<PHINode>(I); ++I) { - // We no longer enter through TIBB, now we come in through NewBB. - PN->replaceUsesOfWith(TIBB, NewBB); + // We no longer enter through TIBB, now we come in through NewBB. Revector + // exactly one entry in the PHI node that used to come from TIBB to come + // from NewBB. + Value *InVal = PN->removeIncomingValue(TIBB, false); + PN->addIncoming(InVal, NewBB); } // If we don't have a pass object, we can't update anything... |