Be more careful when updating Phi nodes after eliminating dead switch cases. Fix
proposed by Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28947
91177308-0d34-0410-b5e6-
96231b3b80d8
Old->getTerminator()->eraseFromParent();
Old->getTerminator()->eraseFromParent();
- for (BasicBlock::iterator II = SI->getSuccessor(i)->begin(),
- IE = SI->getSuccessor(i)->end(); II != IE; ++II) {
- if (isa<PHINode>(*II)) {
- (*II).replaceUsesOfWith(Split, Old);
- }
+
+ PHINode *PN;
+ for (BasicBlock::iterator II = SI->getSuccessor(i)->begin();
+ (PN = dyn_cast<PHINode>(II)); ++II) {
+ Value *InVal = PN->removeIncomingValue(Split, false);
+ PN->addIncoming(InVal, Old);