11d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand//===-- SystemZConstantPoolValue.cpp - SystemZ constant-pool value --------===// 21d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand// 31d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand// The LLVM Compiler Infrastructure 41d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand// 51d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand// This file is distributed under the University of Illinois Open Source 61d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand// License. See LICENSE.TXT for details. 71d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand// 81d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand//===----------------------------------------------------------------------===// 91d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand 101d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand#include "SystemZConstantPoolValue.h" 111d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand#include "llvm/ADT/FoldingSet.h" 121d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand#include "llvm/IR/DerivedTypes.h" 131d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand#include "llvm/IR/GlobalValue.h" 141d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand#include "llvm/Support/raw_ostream.h" 151d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand 161d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigandusing namespace llvm; 171d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand 181d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich WeigandSystemZConstantPoolValue:: 191d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich WeigandSystemZConstantPoolValue(const GlobalValue *gv, 201d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand SystemZCP::SystemZCPModifier modifier) 211d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand : MachineConstantPoolValue(gv->getType()), GV(gv), Modifier(modifier) {} 221d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand 231d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich WeigandSystemZConstantPoolValue * 241d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich WeigandSystemZConstantPoolValue::Create(const GlobalValue *GV, 251d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand SystemZCP::SystemZCPModifier Modifier) { 261d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand return new SystemZConstantPoolValue(GV, Modifier); 271d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand} 281d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand 291d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigandunsigned SystemZConstantPoolValue::getRelocationInfo() const { 301d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand switch (Modifier) { 311d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand case SystemZCP::NTPOFF: 321d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand // May require a relocation, but the relocations are always resolved 331d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand // by the static linker. 341d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand return 1; 351d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand } 361d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand llvm_unreachable("Unknown modifier"); 371d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand} 381d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand 391d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigandint SystemZConstantPoolValue:: 401d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich WeigandgetExistingMachineCPValue(MachineConstantPool *CP, unsigned Alignment) { 411d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand unsigned AlignMask = Alignment - 1; 4294ee55d4b39d6506cf4e0f4e4b1c0b7fbbfeaed5Benjamin Kramer const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants(); 431d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand for (unsigned I = 0, E = Constants.size(); I != E; ++I) { 441d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand if (Constants[I].isMachineConstantPoolEntry() && 451d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand (Constants[I].getAlignment() & AlignMask) == 0) { 4636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines auto *ZCPV = 471d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand static_cast<SystemZConstantPoolValue *>(Constants[I].Val.MachineCPVal); 481d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand if (ZCPV->GV == GV && ZCPV->Modifier == Modifier) 491d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand return I; 501d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand } 511d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand } 521d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand return -1; 531d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand} 541d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand 551d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigandvoid SystemZConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) { 561d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand ID.AddPointer(GV); 571d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand ID.AddInteger(Modifier); 581d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand} 591d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand 601d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigandvoid SystemZConstantPoolValue::print(raw_ostream &O) const { 611d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand O << GV << "@" << int(Modifier); 621d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07Ulrich Weigand} 63