// 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 32 bits to uint64_t
- // since uint is not normally sign-extended when cast to uint64_t.
+ // Also, the product needs to be sign-extended from 32 to 64 bits.
uint64_t elementSize = this->getTypeSize(Ty);
uint64_t arrayIdx = cast<ConstantUInt>(Idx[CurIDX])->getValue();
- arrayIdx = (uint64_t) (int) arrayIdx; // sign-extend from 32 to 64 bits
- Result += arrayIdx * elementSize;
+ Result += (uint64_t) (int) (arrayIdx * elementSize); // sign-extend
} else if (const StructType *STy = dyn_cast<const StructType>(Ty)) {
assert(Idx[CurIDX]->getType() == Type::UByteTy && "Illegal struct idx");