1 //===-- SystemZConstantPoolValue.cpp - SystemZ constant-pool value --------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 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" 15 16 using namespace llvm; 17 18 SystemZConstantPoolValue:: 19 SystemZConstantPoolValue(const GlobalValue *gv, 20 SystemZCP::SystemZCPModifier modifier) 21 : MachineConstantPoolValue(gv->getType()), GV(gv), Modifier(modifier) {} 22 23 SystemZConstantPoolValue * 24 SystemZConstantPoolValue::Create(const GlobalValue *GV, 25 SystemZCP::SystemZCPModifier Modifier) { 26 return new SystemZConstantPoolValue(GV, Modifier); 27 } 28 29 int SystemZConstantPoolValue:: 30 getExistingMachineCPValue(MachineConstantPool *CP, unsigned Alignment) { 31 unsigned AlignMask = Alignment - 1; 32 const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants(); 33 for (unsigned I = 0, E = Constants.size(); I != E; ++I) { 34 if (Constants[I].isMachineConstantPoolEntry() && 35 (Constants[I].getAlignment() & AlignMask) == 0) { 36 auto *ZCPV = 37 static_cast<SystemZConstantPoolValue *>(Constants[I].Val.MachineCPVal); 38 if (ZCPV->GV == GV && ZCPV->Modifier == Modifier) 39 return I; 40 } 41 } 42 return -1; 43 } 44 45 void SystemZConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) { 46 ID.AddPointer(GV); 47 ID.AddInteger(Modifier); 48 } 49 50 void SystemZConstantPoolValue::print(raw_ostream &O) const { 51 O << GV << "@" << int(Modifier); 52 } 53
