diff options
Diffstat (limited to 'contrib/llvm-project/llvm/lib/Analysis/DomTreeUpdater.cpp')
| -rw-r--r-- | contrib/llvm-project/llvm/lib/Analysis/DomTreeUpdater.cpp | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/contrib/llvm-project/llvm/lib/Analysis/DomTreeUpdater.cpp b/contrib/llvm-project/llvm/lib/Analysis/DomTreeUpdater.cpp index 888c16723208..0a16fc9a76d2 100644 --- a/contrib/llvm-project/llvm/lib/Analysis/DomTreeUpdater.cpp +++ b/contrib/llvm-project/llvm/lib/Analysis/DomTreeUpdater.cpp @@ -106,8 +106,7 @@ bool DomTreeUpdater::forceFlushDeletedBB() { // validateDeleteBB() removes all instructions of DelBB and adds an // UnreachableInst as its terminator. So we check whether the BasicBlock to // delete only has an UnreachableInst inside. - assert(BB->getInstList().size() == 1 && - isa<UnreachableInst>(BB->getTerminator()) && + assert(BB->size() == 1 && isa<UnreachableInst>(BB->getTerminator()) && "DelBB has been modified while awaiting deletion."); BB->removeFromParent(); eraseDelBBNode(BB); @@ -218,10 +217,10 @@ void DomTreeUpdater::validateDeleteBB(BasicBlock *DelBB) { // DelBB is unreachable and all its instructions are dead. while (!DelBB->empty()) { Instruction &I = DelBB->back(); - // Replace used instructions with an arbitrary value (undef). + // Replace used instructions with an arbitrary value (poison). if (!I.use_empty()) - I.replaceAllUsesWith(llvm::UndefValue::get(I.getType())); - DelBB->getInstList().pop_back(); + I.replaceAllUsesWith(PoisonValue::get(I.getType())); + DelBB->back().eraseFromParent(); } // Make sure DelBB has a valid terminator instruction. As long as DelBB is a // Child of Function F it must contain valid IR. |