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Undo one of those last fixes -- it was incorrect.

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llvm-svn: 6593
This commit is contained in:
Vikram S. Adve 2003-06-04 02:10:37 +00:00
parent 6e22f0fa52
commit 15a27e40c6
1 changed files with 5 additions and 3 deletions
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8
lib/Target/TargetData.cpp
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@ -193,10 +193,12 @@ uint64_t TargetData::getIndexedOffset(const Type *ptrTy,
Ty = cast<SequentialType>(Ty)->getElementType(); Ty = cast<SequentialType>(Ty)->getElementType();
// Get the array index and the size of each array element. // Get the array index and the size of each array element.
// Both must be known constants, or the index shd be 0; else this fails. // The size must be a known value, except if arrayIdx is 0.
// In particular, don't try to get the type size if the arrayIdx is 0:
// 0 index into an unsized type is legal and should be allowed.
int64_t arrayIdx = cast<ConstantSInt>(Idx[CurIDX])->getValue(); int64_t arrayIdx = cast<ConstantSInt>(Idx[CurIDX])->getValue();
Result += arrayIdx * (int64_t)getTypeSize(Ty); Result += arrayIdx == 0? 0
: arrayIdx * (int64_t)getTypeSize(Ty);
} else { } else {
const StructType *STy = cast<StructType>(Ty); const StructType *STy = cast<StructType>(Ty);
assert(Idx[CurIDX]->getType() == Type::UByteTy && "Illegal struct idx"); assert(Idx[CurIDX]->getType() == Type::UByteTy && "Illegal struct idx");