SystemZMCTargetDesc.h revision c3cee57f7d20f69a84fd88464ed8cf050e63c7ad
1//===-- SystemZMCTargetDesc.h - SystemZ target descriptions -----*- C++ -*-===// 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#ifndef SYSTEMZMCTARGETDESC_H 11#define SYSTEMZMCTARGETDESC_H 12 13#include "llvm/Support/DataTypes.h" 14 15namespace llvm { 16 17class MCAsmBackend; 18class MCCodeEmitter; 19class MCContext; 20class MCInstrInfo; 21class MCObjectWriter; 22class MCRegisterInfo; 23class MCSubtargetInfo; 24class StringRef; 25class Target; 26class raw_ostream; 27 28extern Target TheSystemZTarget; 29 30namespace SystemZMC { 31 // How many bytes are in the ABI-defined, caller-allocated part of 32 // a stack frame. 33 const int64_t CallFrameSize = 160; 34 35 // The offset of the DWARF CFA from the incoming stack pointer. 36 const int64_t CFAOffsetFromInitialSP = CallFrameSize; 37 38 // Maps of asm register numbers to LLVM register numbers, with 0 indicating 39 // an invalid register. In principle we could use 32-bit and 64-bit register 40 // classes directly, provided that we relegated the GPR allocation order 41 // in SystemZRegisterInfo.td to an AltOrder and left the default order 42 // as %r0-%r15. It seems better to provide the same interface for 43 // all classes though. 44 extern const unsigned GR32Regs[16]; 45 extern const unsigned GR64Regs[16]; 46 extern const unsigned GR128Regs[16]; 47 extern const unsigned FP32Regs[16]; 48 extern const unsigned FP64Regs[16]; 49 extern const unsigned FP128Regs[16]; 50} 51 52MCCodeEmitter *createSystemZMCCodeEmitter(const MCInstrInfo &MCII, 53 const MCRegisterInfo &MRI, 54 const MCSubtargetInfo &STI, 55 MCContext &Ctx); 56 57MCAsmBackend *createSystemZMCAsmBackend(const Target &T, 58 const MCRegisterInfo &MRI, 59 StringRef TT, StringRef CPU); 60 61MCObjectWriter *createSystemZObjectWriter(raw_ostream &OS, uint8_t OSABI); 62} // end namespace llvm 63 64// Defines symbolic names for SystemZ registers. 65// This defines a mapping from register name to register number. 66#define GET_REGINFO_ENUM 67#include "SystemZGenRegisterInfo.inc" 68 69// Defines symbolic names for the SystemZ instructions. 70#define GET_INSTRINFO_ENUM 71#include "SystemZGenInstrInfo.inc" 72 73#define GET_SUBTARGETINFO_ENUM 74#include "SystemZGenSubtargetInfo.inc" 75 76#endif 77