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//===- PtrUseVisitor.cpp - InstVisitors over a pointers uses --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
/// Implementation of the pointer use visitors.
///
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/PtrUseVisitor.h"
using namespace llvm;
void detail::PtrUseVisitorBase::enqueueUsers(Instruction &I) {
for (Use &U : I.uses()) {
if (VisitedUses.insert(&U).second) {
UseToVisit NewU = {
UseToVisit::UseAndIsOffsetKnownPair(&U, IsOffsetKnown),
Offset
};
Worklist.push_back(std::move(NewU));
}
}
}
bool detail::PtrUseVisitorBase::adjustOffsetForGEP(GetElementPtrInst &GEPI) {
if (!IsOffsetKnown)
return false;
return GEPI.accumulateConstantOffset(DL, Offset);
}
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