1//===- PtrUseVisitor.cpp - InstVisitors over a pointers uses --------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9/// \file 10/// Implementation of the pointer use visitors. 11/// 12//===----------------------------------------------------------------------===// 13 14#include "llvm/Analysis/PtrUseVisitor.h" 15 16using namespace llvm; 17 18void detail::PtrUseVisitorBase::enqueueUsers(Instruction &I) { 19 for (Use &U : I.uses()) { 20 if (VisitedUses.insert(&U)) { 21 UseToVisit NewU = { 22 UseToVisit::UseAndIsOffsetKnownPair(&U, IsOffsetKnown), 23 Offset 24 }; 25 Worklist.push_back(std::move(NewU)); 26 } 27 } 28} 29 30bool detail::PtrUseVisitorBase::adjustOffsetForGEP(GetElementPtrInst &GEPI) { 31 if (!IsOffsetKnown) 32 return false; 33 34 return GEPI.accumulateConstantOffset(DL, Offset); 35} 36