[llvm-commits] [llvm] r46932 - /llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp

[Chris Lattner]

Author: lattner
Date: Sun Feb 10 13:05:37 2008
New Revision: 46932

URL: http://llvm.org/viewvc/llvm-project?rev=46932&view=rev
Log:
Fix scalarrepl to not 'miscompile' undefined code, part #2.
This fixes the store case, my previous patch just fixed the load
case.  rdar://5707076.

Modified:
    llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp
URL: 
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp?rev=46932&r1=46931&r2=46932&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp Sun Feb 10 
13:05:37 2008
@@ -1150,7 +1150,7 @@
       // then 'or' into place.
       Value *SV = SI->getOperand(0);
       const Type *AllocaType = NewAI->getType()->getElementType();
-      if (SV->getType() == AllocaType) {
+      if (SV->getType() == AllocaType && Offset == 0) {
         // All is well.
       } else if (const VectorType *PTy = dyn_cast<VectorType>(AllocaType)) {
         Value *Old = new LoadInst(NewAI, NewAI->getName()+".in", SI);


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