1 //===-- SystemZConstantPoolValue.cpp - SystemZ constant-pool value --------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "SystemZConstantPoolValue.h"
11 #include "llvm/ADT/FoldingSet.h"
12 #include "llvm/IR/DerivedTypes.h"
13 #include "llvm/IR/GlobalValue.h"
14 #include "llvm/Support/raw_ostream.h"
18 SystemZConstantPoolValue::
19 SystemZConstantPoolValue(const GlobalValue *gv,
20 SystemZCP::SystemZCPModifier modifier)
21 : MachineConstantPoolValue(gv->getType()), GV(gv), Modifier(modifier) {}
23 SystemZConstantPoolValue *
24 SystemZConstantPoolValue::Create(const GlobalValue *GV,
25 SystemZCP::SystemZCPModifier Modifier) {
26 return new SystemZConstantPoolValue(GV, Modifier);
29 unsigned SystemZConstantPoolValue::getRelocationInfo() const {
31 case SystemZCP::NTPOFF:
32 // May require a relocation, but the relocations are always resolved
33 // by the static linker.
36 llvm_unreachable("Unknown modifier");
39 int SystemZConstantPoolValue::
40 getExistingMachineCPValue(MachineConstantPool *CP, unsigned Alignment) {
41 unsigned AlignMask = Alignment - 1;
42 const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants();
43 for (unsigned I = 0, E = Constants.size(); I != E; ++I) {
44 if (Constants[I].isMachineConstantPoolEntry() &&
45 (Constants[I].getAlignment() & AlignMask) == 0) {
47 static_cast<SystemZConstantPoolValue *>(Constants[I].Val.MachineCPVal);
48 if (ZCPV->GV == GV && ZCPV->Modifier == Modifier)
55 void SystemZConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
57 ID.AddInteger(Modifier);
60 void SystemZConstantPoolValue::print(raw_ostream &O) const {
61 O << GV << "@" << int(Modifier);