1//===-- SystemZConstantPoolValue.cpp - SystemZ constant-pool value --------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "SystemZConstantPoolValue.h"
10#include "llvm/ADT/FoldingSet.h"
11#include "llvm/IR/GlobalValue.h"
12#include "llvm/Support/raw_ostream.h"
13
14using namespace llvm;
15
16SystemZConstantPoolValue::SystemZConstantPoolValue(
17 const GlobalValue *GV, SystemZCP::SystemZCPModifier Modifier)
18 : MachineConstantPoolValue(GV->getType()), GV(GV), Modifier(Modifier) {}
19
20SystemZConstantPoolValue *
21SystemZConstantPoolValue::Create(const GlobalValue *GV,
22 SystemZCP::SystemZCPModifier Modifier) {
23 return new SystemZConstantPoolValue(GV, Modifier);
24}
25
26int SystemZConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
27 Align Alignment) {
28 const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants();
29 for (unsigned I = 0, E = Constants.size(); I != E; ++I) {
30 if (Constants[I].isMachineConstantPoolEntry() &&
31 Constants[I].getAlign() >= Alignment) {
32 auto *ZCPV =
33 static_cast<SystemZConstantPoolValue *>(Constants[I].Val.MachineCPVal);
34 if (ZCPV->GV == GV && ZCPV->Modifier == Modifier)
35 return I;
36 }
37 }
38 return -1;
39}
40
41void SystemZConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
42 ID.AddPointer(Ptr: GV);
43 ID.AddInteger(I: Modifier);
44}
45
46void SystemZConstantPoolValue::print(raw_ostream &O) const {
47 O << GV << "@" << int(Modifier);
48}
49