SystemZInstrBuilder.h revision 276479
1178476Sjb//===-- SystemZInstrBuilder.h - Functions to aid building insts -*- C++ -*-===// 2178476Sjb// 3178476Sjb// The LLVM Compiler Infrastructure 4178476Sjb// 5178476Sjb// This file is distributed under the University of Illinois Open Source 6178476Sjb// License. See LICENSE.TXT for details. 7178476Sjb// 8178476Sjb//===----------------------------------------------------------------------===// 9178476Sjb// 10178476Sjb// This file exposes functions that may be used with BuildMI from the 11178476Sjb// MachineInstrBuilder.h file to handle SystemZ'isms in a clean way. 12178476Sjb// 13178476Sjb//===----------------------------------------------------------------------===// 14178476Sjb 15178476Sjb#ifndef SYSTEMZINSTRBUILDER_H 16178476Sjb#define SYSTEMZINSTRBUILDER_H 17178476Sjb 18178476Sjb#include "llvm/CodeGen/MachineFrameInfo.h" 19178476Sjb#include "llvm/CodeGen/MachineInstrBuilder.h" 20178476Sjb#include "llvm/CodeGen/MachineMemOperand.h" 21178476Sjb#include "llvm/CodeGen/PseudoSourceValue.h" 22178476Sjb 23178476Sjbnamespace llvm { 24178476Sjb 25178476Sjb/// Add a BDX memory reference for frame object FI to MIB. 26178476Sjbstatic inline const MachineInstrBuilder & 27253726SpfgaddFrameReference(const MachineInstrBuilder &MIB, int FI) { 28253726Spfg MachineInstr *MI = MIB; 29253726Spfg MachineFunction &MF = *MI->getParent()->getParent(); 30178476Sjb MachineFrameInfo *MFFrame = MF.getFrameInfo(); 31178476Sjb const MCInstrDesc &MCID = MI->getDesc(); 32178476Sjb unsigned Flags = 0; 33178476Sjb if (MCID.mayLoad()) 34178476Sjb Flags |= MachineMemOperand::MOLoad; 35178476Sjb if (MCID.mayStore()) 36178476Sjb Flags |= MachineMemOperand::MOStore; 37178476Sjb int64_t Offset = 0; 38178476Sjb MachineMemOperand *MMO = 39178476Sjb MF.getMachineMemOperand(MachinePointerInfo( 40178476Sjb PseudoSourceValue::getFixedStack(FI), Offset), 41178476Sjb Flags, MFFrame->getObjectSize(FI), 42178476Sjb MFFrame->getObjectAlignment(FI)); 43178476Sjb return MIB.addFrameIndex(FI).addImm(Offset).addReg(0).addMemOperand(MMO); 44253726Spfg} 45178476Sjb 46178476Sjb} // end namespace llvm 47253726Spfg 48178476Sjb#endif 49178476Sjb