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