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-rw-r--r--lib/Target/TargetData.cpp8
1 files changed, 3 insertions, 5 deletions
diff --git a/lib/Target/TargetData.cpp b/lib/Target/TargetData.cpp
index 48fca1ebdf..6786af3982 100644
--- a/lib/Target/TargetData.cpp
+++ b/lib/Target/TargetData.cpp
@@ -164,13 +164,11 @@ uint64_t TargetData::getIndexedOffset(const Type *ptrTy,
// Get the array index and the size of each array element.
// Both must be known constants, or this will fail.
- // Also, the arrayIdx needs to be sign-extended from uint
- // to the machine register size if the reg. size > sizeof(uint).
+ // Also, the arrayIdx needs to be sign-extended from 32 bits to uint64_t
+ // since uint is not normally sign-extended when cast to uint64_t.
uint64_t elementSize = this->getTypeSize(Ty);
uint64_t arrayIdx = cast<ConstantUInt>(Idx[CurIDX])->getValue();
- if (getIntegerRegize() > sizeof(uint)) {
- arrayIdx = (uint64_t) (int) arrayIdx; // sign-extend from 32 to 64 bits
- }
+ arrayIdx = (uint64_t) (int) arrayIdx; // sign-extend from 32 to 64 bits
Result += arrayIdx * elementSize;
} else if (const StructType *STy = dyn_cast<const StructType>(Ty)) {