using namespace llvm;
void detail::PtrUseVisitorBase::enqueueUsers(Instruction &I) {
- for (Value::use_iterator UI = I.use_begin(), UE = I.use_end();
- UI != UE; ++UI) {
- if (VisitedUses.insert(&UI.getUse())) {
+ for (Use &U : I.uses()) {
+ if (VisitedUses.insert(&U).second) {
UseToVisit NewU = {
- UseToVisit::UseAndIsOffsetKnownPair(&UI.getUse(), IsOffsetKnown),
+ UseToVisit::UseAndIsOffsetKnownPair(&U, IsOffsetKnown),
Offset
};
- Worklist.push_back(llvm_move(NewU));
+ Worklist.push_back(std::move(NewU));
}
}
}
if (!IsOffsetKnown)
return false;
- for (gep_type_iterator GTI = gep_type_begin(GEPI), GTE = gep_type_end(GEPI);
- GTI != GTE; ++GTI) {
- ConstantInt *OpC = dyn_cast<ConstantInt>(GTI.getOperand());
- if (!OpC)
- return false;
- if (OpC->isZero())
- continue;
-
- // Handle a struct index, which adds its field offset to the pointer.
- if (StructType *STy = dyn_cast<StructType>(*GTI)) {
- unsigned ElementIdx = OpC->getZExtValue();
- const StructLayout *SL = DL.getStructLayout(STy);
- Offset += APInt(Offset.getBitWidth(),
- SL->getElementOffset(ElementIdx));
- continue;
- }
-
- // For array or vector indices, scale the index by the size of the type.
- APInt Index = OpC->getValue().sextOrTrunc(Offset.getBitWidth());
- Offset += Index * APInt(Offset.getBitWidth(),
- DL.getTypeAllocSize(GTI.getIndexedType()));
- }
- return true;
+ return GEPI.accumulateConstantOffset(DL, Offset);
}