diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/SROA.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/SROA.cpp b/llvm/lib/Transforms/Scalar/SROA.cpp index 6de6c8cce2c..2d668f940fb 100644 --- a/llvm/lib/Transforms/Scalar/SROA.cpp +++ b/llvm/lib/Transforms/Scalar/SROA.cpp @@ -4243,8 +4243,9 @@ bool SROA::runOnAlloca(AllocaInst &AI) { /// /// We also record the alloca instructions deleted here so that they aren't /// subsequently handed to mem2reg to promote. -void SROA::deleteDeadInstructions( +bool SROA::deleteDeadInstructions( SmallPtrSetImpl<AllocaInst *> &DeletedAllocas) { + bool Changed = false; while (!DeadInsts.empty()) { Instruction *I = DeadInsts.pop_back_val(); DEBUG(dbgs() << "Deleting dead instruction: " << *I << "\n"); @@ -4270,7 +4271,9 @@ void SROA::deleteDeadInstructions( ++NumDeleted; I->eraseFromParent(); + Changed = true; } + return Changed; } /// \brief Promote the allocas, using the best available technique. @@ -4312,7 +4315,7 @@ PreservedAnalyses SROA::runImpl(Function &F, DominatorTree &RunDT, do { while (!Worklist.empty()) { Changed |= runOnAlloca(*Worklist.pop_back_val()); - deleteDeadInstructions(DeletedAllocas); + Changed |= deleteDeadInstructions(DeletedAllocas); // Remove the deleted allocas from various lists so that we don't try to // continue processing them. |
