// We might have a vector load from an array. FIXME: for now we just bail
// out in this case, but we should be able to resolve and simplify such
// loads.
- if(CDS->getElementType() != I.getType())
+ if (CDS->getElementType() != I.getType())
return false;
- int ElemSize = CDS->getElementType()->getPrimitiveSizeInBits() / 8U;
- if (SimplifiedAddrOp->getValue().getActiveBits() >= 64)
+ unsigned ElemSize = CDS->getElementType()->getPrimitiveSizeInBits() / 8U;
+ if (SimplifiedAddrOp->getValue().getActiveBits() > 64)
return false;
- int64_t Index = SimplifiedAddrOp->getSExtValue() / ElemSize;
+ int64_t SimplifiedAddrOpV = SimplifiedAddrOp->getSExtValue();
+ if (SimplifiedAddrOpV < 0) {
+ // FIXME: For now we conservatively ignore out of bound accesses, but
+ // we're allowed to perform the optimization in this case.
+ return false;
+ }
+ uint64_t Index = static_cast<uint64_t>(SimplifiedAddrOpV) / ElemSize;
if (Index >= CDS->getNumElements()) {
// FIXME: For now we conservatively ignore out of bound accesses, but
// we're allowed to perform the optimization in this case.