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a8e2989ece
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33353 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
2.0 KiB
C++
56 lines
2.0 KiB
C++
//===- ARMConstantPoolValue.cpp - ARM constantpool value --------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Evan Cheng and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the ARM specific constantpool value class.
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//
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//===----------------------------------------------------------------------===//
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#include "ARMConstantPoolValue.h"
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#include "llvm/ADT/FoldingSet.h"
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#include "llvm/GlobalValue.h"
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using namespace llvm;
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ARMConstantPoolValue::ARMConstantPoolValue(GlobalValue *gv, unsigned id,
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bool isNonLazy, unsigned char PCAdj)
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: MachineConstantPoolValue((const Type*)gv->getType()),
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GV(gv), LabelId(id), isNonLazyPtr(isNonLazy), PCAdjust(PCAdj) {}
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int ARMConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
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unsigned Alignment) {
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unsigned AlignMask = (1 << Alignment)-1;
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const std::vector<MachineConstantPoolEntry> Constants = CP->getConstants();
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for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
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if (Constants[i].isMachineConstantPoolEntry() &&
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(Constants[i].Offset & AlignMask) == 0) {
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ARMConstantPoolValue *CPV =
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(ARMConstantPoolValue *)Constants[i].Val.MachineCPVal;
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if (CPV->GV == GV && CPV->LabelId == LabelId &&
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CPV->isNonLazyPtr == isNonLazyPtr)
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return i;
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}
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}
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return -1;
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}
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void
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ARMConstantPoolValue::AddSelectionDAGCSEId(FoldingSetNodeID &ID) {
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ID.AddPointer(GV);
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ID.AddInteger(LabelId);
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ID.AddInteger((unsigned)isNonLazyPtr);
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ID.AddInteger(PCAdjust);
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}
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void ARMConstantPoolValue::print(std::ostream &O) const {
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O << GV->getName();
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if (isNonLazyPtr) O << "$non_lazy_ptr";
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if (PCAdjust != 0) O << "-(LPIC" << LabelId << "+"
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<< (unsigned)PCAdjust << ")";
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}
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