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| author | Chandler Carruth <chandlerc@gmail.com> | 2012-09-26 10:59:22 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2012-09-26 10:59:22 +0000 |
| commit | d0ac06d18812dd1c20ad55f9324c550609138593 (patch) | |
| tree | 08f3555c93a2c702a64384a6e5ae80db8989cd6a /lib/Transforms/Scalar/SROA.cpp | |
| parent | 238fd1591ee004130ca1e857cda1d270b15efe3d (diff) | |
| download | external_llvm-d0ac06d18812dd1c20ad55f9324c550609138593.zip external_llvm-d0ac06d18812dd1c20ad55f9324c550609138593.tar.gz external_llvm-d0ac06d18812dd1c20ad55f9324c550609138593.tar.bz2 | |
Analogous fix to memset and memcpy rewriting. Don't have a test case
contrived for these yet, as I spotted them by inspection and the test
cases are a bit more tricky to phrase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164691 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/SROA.cpp')
| -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 67246a5..cf12cfc 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; |