diff options
| -rw-r--r-- | lib/Transforms/Scalar/SROA.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/SROA.cpp b/lib/Transforms/Scalar/SROA.cpp index 67246a5a1c..cf12cfca18 100644 --- a/lib/Transforms/Scalar/SROA.cpp +++ b/lib/Transforms/Scalar/SROA.cpp @@ -2064,6 +2064,15 @@ private: // pointer to the new alloca. if (!isa<Constant>(II.getLength())) { II.setDest(getAdjustedAllocaPtr(IRB, II.getRawDest()->getType())); + + Type *CstTy = II.getAlignmentCst()->getType(); + if (!NewAI.getAlignment()) + II.setAlignment(ConstantInt::get(CstTy, 0)); + else + II.setAlignment( + ConstantInt::get(CstTy, MinAlign(NewAI.getAlignment(), + BeginOffset - NewAllocaBeginOffset))); + deleteIfTriviallyDead(OldPtr); return false; } @@ -2187,6 +2196,13 @@ private: else II.setSource(getAdjustedAllocaPtr(IRB, II.getRawSource()->getType())); + Type *CstTy = II.getAlignmentCst()->getType(); + if (II.getAlignment() > 1) + II.setAlignment(ConstantInt::get( + CstTy, MinAlign(II.getAlignment(), + MinAlign(NewAI.getAlignment(), + BeginOffset - NewAllocaBeginOffset)))); + DEBUG(dbgs() << " to: " << II << "\n"); deleteIfTriviallyDead(OldOp); return false; |