52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
//===-- SystemZConstantPoolValue.cpp - SystemZ constant-pool value --------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "SystemZConstantPoolValue.h"
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#include "llvm/ADT/FoldingSet.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/GlobalValue.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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SystemZConstantPoolValue::
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SystemZConstantPoolValue(const GlobalValue *gv,
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SystemZCP::SystemZCPModifier modifier)
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: MachineConstantPoolValue(gv->getType()), GV(gv), Modifier(modifier) {}
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SystemZConstantPoolValue *
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SystemZConstantPoolValue::Create(const GlobalValue *GV,
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SystemZCP::SystemZCPModifier Modifier) {
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return new SystemZConstantPoolValue(GV, Modifier);
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}
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int SystemZConstantPoolValue::
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getExistingMachineCPValue(MachineConstantPool *CP, unsigned Alignment) {
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unsigned AlignMask = 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].getAlignment() & AlignMask) == 0) {
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auto *ZCPV =
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static_cast<SystemZConstantPoolValue *>(Constants[I].Val.MachineCPVal);
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if (ZCPV->GV == GV && ZCPV->Modifier == Modifier)
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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 SystemZConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
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ID.AddPointer(GV);
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ID.AddInteger(Modifier);
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}
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void SystemZConstantPoolValue::print(raw_ostream &O) const {
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O << GV << "@" << int(Modifier);
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}
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