Author: baldrick
Date: Tue Nov 6 14:39:11 2007
New Revision: 43775
URL: http://llvm.org/viewvc/llvm-project?rev=43775&view=rev
Log:
At the point of calculating the shift amount, the
type of SV has changed from what it originally was.
However we need the store width of the original.
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=43775&r1=43774&r2=43775&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp Tue Nov 6
14:39:11 2007
@@ -1179,6 +1179,8 @@
// here.
unsigned SrcWidth = TD.getTypeSizeInBits(SV->getType());
unsigned DestWidth = TD.getTypeSizeInBits(AllocaType);
+ unsigned SrcStoreWidth = TD.getTypeStoreSizeInBits(SV->getType());
+ unsigned DestStoreWidth = TD.getTypeStoreSizeInBits(AllocaType);
if (SV->getType()->isFloatingPoint())
SV = new BitCastInst(SV, IntegerType::get(SrcWidth),
SV->getName(), SI);
@@ -1196,8 +1198,7 @@
// On big-endian machines, the lowest bit is stored at the bit offset
// from the pointer given by getTypeStoreSizeInBits. This matters
for
// integers with a bitwidth that is not a multiple of 8.
- ShAmt = TD.getTypeStoreSizeInBits(AllocaType) -
- TD.getTypeStoreSizeInBits(SV->getType()) - Offset;
+ ShAmt = DestStoreWidth - SrcStoreWidth - Offset;
} else {
ShAmt = Offset;
}
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