mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-06 21:05:51 +00:00
b71b909bc7
implemented somewhat differently than before, but it should have the same functionality and the previous testcase passes again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78900 91177308-0d34-0410-b5e6-96231b3b80d8
124 lines
3.6 KiB
C++
124 lines
3.6 KiB
C++
//=====-- MipsSubtarget.h - Define Subtarget for the Mips -----*- C++ -*--====//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file declares the Mips specific subclass of TargetSubtarget.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef MIPSSUBTARGET_H
|
|
#define MIPSSUBTARGET_H
|
|
|
|
#include "llvm/Target/TargetSubtarget.h"
|
|
#include "llvm/Target/TargetMachine.h"
|
|
|
|
#include <string>
|
|
|
|
namespace llvm {
|
|
|
|
class MipsSubtarget : public TargetSubtarget {
|
|
|
|
public:
|
|
enum MipsABIEnum {
|
|
O32, O64, N32, N64, EABI
|
|
};
|
|
|
|
protected:
|
|
|
|
enum MipsArchEnum {
|
|
Mips1, Mips2, Mips3, Mips4, Mips32, Mips32r2, Mips64, Mips64r2
|
|
};
|
|
|
|
// Mips architecture version
|
|
MipsArchEnum MipsArchVersion;
|
|
|
|
// Mips supported ABIs
|
|
MipsABIEnum MipsABI;
|
|
|
|
// IsLittle - The target is Little Endian
|
|
bool IsLittle;
|
|
|
|
// IsSingleFloat - The target only supports single precision float
|
|
// point operations. This enable the target to use all 32 32-bit
|
|
// floating point registers instead of only using even ones.
|
|
bool IsSingleFloat;
|
|
|
|
// IsFP64bit - The target processor has 64-bit floating point registers.
|
|
bool IsFP64bit;
|
|
|
|
// IsFP64bit - General-purpose registers are 64 bits wide
|
|
bool IsGP64bit;
|
|
|
|
// HasVFPU - Processor has a vector floating point unit.
|
|
bool HasVFPU;
|
|
|
|
// isLinux - Target system is Linux. Is false we consider ELFOS for now.
|
|
bool IsLinux;
|
|
|
|
/// Features related to the presence of specific instructions.
|
|
|
|
// HasSEInReg - SEB and SEH (signext in register) instructions.
|
|
bool HasSEInReg;
|
|
|
|
// HasCondMov - Conditional mov (MOVZ, MOVN) instructions.
|
|
bool HasCondMov;
|
|
|
|
// HasMulDivAdd - Multiply add and sub (MADD, MADDu, MSUB, MSUBu)
|
|
// instructions.
|
|
bool HasMulDivAdd;
|
|
|
|
// HasMinMax - MIN and MAX instructions.
|
|
bool HasMinMax;
|
|
|
|
// HasSwap - Byte and half swap instructions.
|
|
bool HasSwap;
|
|
|
|
// HasBitCount - Count leading '1' and '0' bits.
|
|
bool HasBitCount;
|
|
|
|
InstrItineraryData InstrItins;
|
|
|
|
public:
|
|
|
|
/// Only O32 and EABI supported right now.
|
|
bool isABI_EABI() const { return MipsABI == EABI; }
|
|
bool isABI_O32() const { return MipsABI == O32; }
|
|
unsigned getTargetABI() const { return MipsABI; }
|
|
|
|
/// This constructor initializes the data members to match that
|
|
/// of the specified triple.
|
|
MipsSubtarget(const std::string &TT, const std::string &FS, bool little);
|
|
|
|
/// ParseSubtargetFeatures - Parses features string setting specified
|
|
/// subtarget options. Definition of function is auto generated by tblgen.
|
|
std::string ParseSubtargetFeatures(const std::string &FS,
|
|
const std::string &CPU);
|
|
|
|
bool isMips1() const { return MipsArchVersion == Mips1; }
|
|
|
|
bool isLittle() const { return IsLittle; }
|
|
bool isFP64bit() const { return IsFP64bit; };
|
|
bool isGP64bit() const { return IsGP64bit; };
|
|
bool isGP32bit() const { return !IsGP64bit; };
|
|
bool isSingleFloat() const { return IsSingleFloat; };
|
|
bool isNotSingleFloat() const { return !IsSingleFloat; };
|
|
bool hasVFPU() const { return HasVFPU; };
|
|
bool isLinux() const { return IsLinux; };
|
|
|
|
/// Features related to the presence of specific instructions.
|
|
bool hasSEInReg() const { return HasSEInReg; };
|
|
bool hasCondMov() const { return HasCondMov; };
|
|
bool hasMulDivAdd() const { return HasMulDivAdd; };
|
|
bool hasMinMax() const { return HasMinMax; };
|
|
bool hasSwap() const { return HasSwap; };
|
|
bool hasBitCount() const { return HasBitCount; };
|
|
};
|
|
} // End llvm namespace
|
|
|
|
#endif
|