diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/Local.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/Local.cpp | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp index c1cf1f1..2f1d0c2 100644 --- a/llvm/lib/Transforms/Utils/Local.cpp +++ b/llvm/lib/Transforms/Utils/Local.cpp @@ -638,7 +638,7 @@ bool llvm::RecursivelyDeleteDeadPHINode(PHINode *PN, // won't prove fruitful. if (!Visited.insert(I).second) { // Break the cycle and delete the instruction and its operands. - I->replaceAllUsesWith(UndefValue::get(I->getType())); + I->replaceAllUsesWith(PoisonValue::get(I->getType())); (void)RecursivelyDeleteTriviallyDeadInstructions(I, TLI, MSSAU); return true; } @@ -751,8 +751,8 @@ void llvm::MergeBasicBlockIntoOnlyPred(BasicBlock *DestBB, // If BB has single-entry PHI nodes, fold them. while (PHINode *PN = dyn_cast<PHINode>(DestBB->begin())) { Value *NewVal = PN->getIncomingValue(0); - // Replace self referencing PHI with undef, it must be dead. - if (NewVal == PN) NewVal = UndefValue::get(PN->getType()); + // Replace self referencing PHI with poison, it must be dead. + if (NewVal == PN) NewVal = PoisonValue::get(PN->getType()); PN->replaceAllUsesWith(NewVal); PN->eraseFromParent(); } @@ -2106,7 +2106,7 @@ llvm::removeAllNonTerminatorAndEHPadInstructions(BasicBlock *BB) { // Delete the next to last instruction. Instruction *Inst = &*--EndInst->getIterator(); if (!Inst->use_empty() && !Inst->getType()->isTokenTy()) - Inst->replaceAllUsesWith(UndefValue::get(Inst->getType())); + Inst->replaceAllUsesWith(PoisonValue::get(Inst->getType())); if (Inst->isEHPad() || Inst->getType()->isTokenTy()) { EndInst = Inst; continue; @@ -2145,7 +2145,7 @@ unsigned llvm::changeToUnreachable(Instruction *I, bool PreserveLCSSA, BasicBlock::iterator BBI = I->getIterator(), BBE = BB->end(); while (BBI != BBE) { if (!BBI->use_empty()) - BBI->replaceAllUsesWith(UndefValue::get(BBI->getType())); + BBI->replaceAllUsesWith(PoisonValue::get(BBI->getType())); BB->getInstList().erase(BBI++); ++NumInstrsRemoved; } |