diff options
-rw-r--r-- | lib/Transforms/Scalar/MemCpyOptimizer.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/lib/Transforms/Scalar/MemCpyOptimizer.cpp index 76fab1cd28..102eab65f2 100644 --- a/lib/Transforms/Scalar/MemCpyOptimizer.cpp +++ b/lib/Transforms/Scalar/MemCpyOptimizer.cpp @@ -456,8 +456,10 @@ Instruction *MemCpyOpt::tryMergingIntoMemset(Instruction *StartInst, // Zap all the stores. for (SmallVector<Instruction*, 16>::const_iterator SI = Range.TheStores.begin(), - SE = Range.TheStores.end(); SI != SE; ++SI) + SE = Range.TheStores.end(); SI != SE; ++SI) { + MD->removeInstruction(*SI); (*SI)->eraseFromParent(); + } ++NumMemSetInfer; } @@ -912,7 +914,7 @@ bool MemCpyOpt::iterateOnFunction(Function &F) { // Reprocess the instruction if desired. if (RepeatInstruction) { - --BI; + if (BI != BB->begin()) --BI; MadeChange = true; } } |