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/DerivedTypes.h"
12#include "llvm/IR/GlobalValue.h"
13#include "llvm/Support/raw_ostream.h"
14
15using namespace llvm;
16
17SystemZConstantPoolValue::
18SystemZConstantPoolValue(const GlobalValue *gv,
19 SystemZCP::SystemZCPModifier modifier)
20 : MachineConstantPoolValue(gv->getType()), GV(gv), Modifier(modifier) {}
21
22SystemZConstantPoolValue *
23SystemZConstantPoolValue::Create(const GlobalValue *GV,
24 SystemZCP::SystemZCPModifier Modifier) {
25 return new SystemZConstantPoolValue(GV, Modifier);
26}
27
28int SystemZConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
29 Align Alignment) {
30 const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants();
31 for (unsigned I = 0, E = Constants.size(); I != E; ++I) {
32 if (Constants[I].isMachineConstantPoolEntry() &&
33 Constants[I].getAlign() >= Alignment) {
34 auto *ZCPV =
35 static_cast<SystemZConstantPoolValue *>(Constants[I].Val.MachineCPVal);
36 if (ZCPV->GV == GV && ZCPV->Modifier == Modifier)
37 return I;
38 }
39 }
40 return -1;
41}
42
43void SystemZConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
44 ID.AddPointer(Ptr: GV);
45 ID.AddInteger(I: Modifier);
46}
47
48void SystemZConstantPoolValue::print(raw_ostream &O) const {
49 O << GV << "@" << int(Modifier);
50}
51