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//===-- MipsTargetStreamer.h - Mips Target Streamer ------------*- C++ -*--===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_MIPS_MIPSTARGETSTREAMER_H
#define LLVM_LIB_TARGET_MIPS_MIPSTARGETSTREAMER_H
#include "MCTargetDesc/MipsABIFlagsSection.h"
#include "MCTargetDesc/MipsABIInfo.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
namespace llvm {
struct MipsABIFlagsSection;
class MipsTargetStreamer : public MCTargetStreamer {
public:
MipsTargetStreamer(MCStreamer &S);
virtual void setPic(bool Value) {}
virtual void emitDirectiveSetMicroMips();
virtual void emitDirectiveSetNoMicroMips();
virtual void setUsesMicroMips();
virtual void emitDirectiveSetMips16();
virtual void emitDirectiveSetNoMips16();
virtual void emitDirectiveSetReorder();
virtual void emitDirectiveSetNoReorder();
virtual void emitDirectiveSetMacro();
virtual void emitDirectiveSetNoMacro();
virtual void emitDirectiveSetMsa();
virtual void emitDirectiveSetNoMsa();
virtual void emitDirectiveSetMt();
virtual void emitDirectiveSetNoMt();
virtual void emitDirectiveSetCRC();
virtual void emitDirectiveSetNoCRC();
virtual void emitDirectiveSetVirt();
virtual void emitDirectiveSetNoVirt();
virtual void emitDirectiveSetGINV();
virtual void emitDirectiveSetNoGINV();
virtual void emitDirectiveSetAt();
virtual void emitDirectiveSetAtWithArg(unsigned RegNo);
virtual void emitDirectiveSetNoAt();
virtual void emitDirectiveEnd(StringRef Name);
virtual void emitDirectiveEnt(const MCSymbol &Symbol);
virtual void emitDirectiveAbiCalls();
virtual void emitDirectiveNaN2008();
virtual void emitDirectiveNaNLegacy();
virtual void emitDirectiveOptionPic0();
virtual void emitDirectiveOptionPic2();
virtual void emitDirectiveInsn();
virtual void emitFrame(unsigned StackReg, unsigned StackSize,
unsigned ReturnReg);
virtual void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff);
virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff);
virtual void emitDirectiveSetArch(StringRef Arch);
virtual void emitDirectiveSetMips0();
virtual void emitDirectiveSetMips1();
virtual void emitDirectiveSetMips2();
virtual void emitDirectiveSetMips3();
virtual void emitDirectiveSetMips4();
virtual void emitDirectiveSetMips5();
virtual void emitDirectiveSetMips32();
virtual void emitDirectiveSetMips32R2();
virtual void emitDirectiveSetMips32R3();
virtual void emitDirectiveSetMips32R5();
virtual void emitDirectiveSetMips32R6();
virtual void emitDirectiveSetMips64();
virtual void emitDirectiveSetMips64R2();
virtual void emitDirectiveSetMips64R3();
virtual void emitDirectiveSetMips64R5();
virtual void emitDirectiveSetMips64R6();
virtual void emitDirectiveSetDsp();
virtual void emitDirectiveSetDspr2();
virtual void emitDirectiveSetNoDsp();
virtual void emitDirectiveSetPop();
virtual void emitDirectiveSetPush();
virtual void emitDirectiveSetSoftFloat();
virtual void emitDirectiveSetHardFloat();
// PIC support
virtual void emitDirectiveCpLoad(unsigned RegNo);
virtual void emitDirectiveCpLocal(unsigned RegNo);
virtual bool emitDirectiveCpRestore(int Offset,
function_ref<unsigned()> GetATReg,
SMLoc IDLoc, const MCSubtargetInfo *STI);
virtual void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset,
const MCSymbol &Sym, bool IsReg);
virtual void emitDirectiveCpreturn(unsigned SaveLocation,
bool SaveLocationIsRegister);
// FP abiflags directives
virtual void emitDirectiveModuleFP();
virtual void emitDirectiveModuleOddSPReg();
virtual void emitDirectiveModuleSoftFloat();
virtual void emitDirectiveModuleHardFloat();
virtual void emitDirectiveModuleMT();
virtual void emitDirectiveSetFp(MipsABIFlagsSection::FpABIKind Value);
virtual void emitDirectiveSetOddSPReg();
virtual void emitDirectiveSetNoOddSPReg();
virtual void emitDirectiveModuleCRC();
virtual void emitDirectiveModuleNoCRC();
virtual void emitDirectiveModuleVirt();
virtual void emitDirectiveModuleNoVirt();
virtual void emitDirectiveModuleGINV();
virtual void emitDirectiveModuleNoGINV();
void emitR(unsigned Opcode, unsigned Reg0, SMLoc IDLoc,
const MCSubtargetInfo *STI);
void emitII(unsigned Opcode, int16_t Imm1, int16_t Imm2, SMLoc IDLoc,
const MCSubtargetInfo *STI);
void emitRX(unsigned Opcode, unsigned Reg0, MCOperand Op1, SMLoc IDLoc,
const MCSubtargetInfo *STI);
void emitRI(unsigned Opcode, unsigned Reg0, int32_t Imm, SMLoc IDLoc,
const MCSubtargetInfo *STI);
void emitRR(unsigned Opcode, unsigned Reg0, unsigned Reg1, SMLoc IDLoc,
const MCSubtargetInfo *STI);
void emitRRX(unsigned Opcode, unsigned Reg0, unsigned Reg1, MCOperand Op2,
SMLoc IDLoc, const MCSubtargetInfo *STI);
void emitRRR(unsigned Opcode, unsigned Reg0, unsigned Reg1, unsigned Reg2,
SMLoc IDLoc, const MCSubtargetInfo *STI);
void emitRRRX(unsigned Opcode, unsigned Reg0, unsigned Reg1, unsigned Reg2,
MCOperand Op3, SMLoc IDLoc, const MCSubtargetInfo *STI);
void emitRRI(unsigned Opcode, unsigned Reg0, unsigned Reg1, int16_t Imm,
SMLoc IDLoc, const MCSubtargetInfo *STI);
void emitRRIII(unsigned Opcode, unsigned Reg0, unsigned Reg1, int16_t Imm0,
int16_t Imm1, int16_t Imm2, SMLoc IDLoc,
const MCSubtargetInfo *STI);
void emitAddu(unsigned DstReg, unsigned SrcReg, unsigned TrgReg, bool Is64Bit,
const MCSubtargetInfo *STI);
void emitDSLL(unsigned DstReg, unsigned SrcReg, int16_t ShiftAmount,
SMLoc IDLoc, const MCSubtargetInfo *STI);
void emitEmptyDelaySlot(bool hasShortDelaySlot, SMLoc IDLoc,
const MCSubtargetInfo *STI);
void emitNop(SMLoc IDLoc, const MCSubtargetInfo *STI);
/// Emit a store instruction with an offset. If the offset is out of range
/// then it will be synthesized using the assembler temporary.
///
/// GetATReg() is a callback that can be used to obtain the current assembler
/// temporary and is only called when the assembler temporary is required. It
/// must handle the case where no assembler temporary is available (typically
/// by reporting an error).
void emitStoreWithImmOffset(unsigned Opcode, unsigned SrcReg,
unsigned BaseReg, int64_t Offset,
function_ref<unsigned()> GetATReg, SMLoc IDLoc,
const MCSubtargetInfo *STI);
void emitLoadWithImmOffset(unsigned Opcode, unsigned DstReg, unsigned BaseReg,
int64_t Offset, unsigned TmpReg, SMLoc IDLoc,
const MCSubtargetInfo *STI);
void emitGPRestore(int Offset, SMLoc IDLoc, const MCSubtargetInfo *STI);
void forbidModuleDirective() { ModuleDirectiveAllowed = false; }
void reallowModuleDirective() { ModuleDirectiveAllowed = true; }
bool isModuleDirectiveAllowed() { return ModuleDirectiveAllowed; }
// This method enables template classes to set internal abi flags
// structure values.
template <class PredicateLibrary>
void updateABIInfo(const PredicateLibrary &P) {
ABI = P.getABI();
ABIFlagsSection.setAllFromPredicates(P);
}
MipsABIFlagsSection &getABIFlagsSection() { return ABIFlagsSection; }
const MipsABIInfo &getABI() const {
assert(ABI.hasValue() && "ABI hasn't been set!");
return *ABI;
}
protected:
llvm::Optional<MipsABIInfo> ABI;
MipsABIFlagsSection ABIFlagsSection;
bool GPRInfoSet;
unsigned GPRBitMask;
int GPROffset;
bool FPRInfoSet;
unsigned FPRBitMask;
int FPROffset;
bool FrameInfoSet;
int FrameOffset;
unsigned FrameReg;
unsigned GPReg;
unsigned ReturnReg;
private:
bool ModuleDirectiveAllowed;
};
// This part is for ascii assembly output
class MipsTargetAsmStreamer : public MipsTargetStreamer {
formatted_raw_ostream &OS;
public:
MipsTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
void emitDirectiveSetMicroMips() override;
void emitDirectiveSetNoMicroMips() override;
void emitDirectiveSetMips16() override;
void emitDirectiveSetNoMips16() override;
void emitDirectiveSetReorder() override;
void emitDirectiveSetNoReorder() override;
void emitDirectiveSetMacro() override;
void emitDirectiveSetNoMacro() override;
void emitDirectiveSetMsa() override;
void emitDirectiveSetNoMsa() override;
void emitDirectiveSetMt() override;
void emitDirectiveSetNoMt() override;
void emitDirectiveSetCRC() override;
void emitDirectiveSetNoCRC() override;
void emitDirectiveSetVirt() override;
void emitDirectiveSetNoVirt() override;
void emitDirectiveSetGINV() override;
void emitDirectiveSetNoGINV() override;
void emitDirectiveSetAt() override;
void emitDirectiveSetAtWithArg(unsigned RegNo) override;
void emitDirectiveSetNoAt() override;
void emitDirectiveEnd(StringRef Name) override;
void emitDirectiveEnt(const MCSymbol &Symbol) override;
void emitDirectiveAbiCalls() override;
void emitDirectiveNaN2008() override;
void emitDirectiveNaNLegacy() override;
void emitDirectiveOptionPic0() override;
void emitDirectiveOptionPic2() override;
void emitDirectiveInsn() override;
void emitFrame(unsigned StackReg, unsigned StackSize,
unsigned ReturnReg) override;
void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff) override;
void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) override;
void emitDirectiveSetArch(StringRef Arch) override;
void emitDirectiveSetMips0() override;
void emitDirectiveSetMips1() override;
void emitDirectiveSetMips2() override;
void emitDirectiveSetMips3() override;
void emitDirectiveSetMips4() override;
void emitDirectiveSetMips5() override;
void emitDirectiveSetMips32() override;
void emitDirectiveSetMips32R2() override;
void emitDirectiveSetMips32R3() override;
void emitDirectiveSetMips32R5() override;
void emitDirectiveSetMips32R6() override;
void emitDirectiveSetMips64() override;
void emitDirectiveSetMips64R2() override;
void emitDirectiveSetMips64R3() override;
void emitDirectiveSetMips64R5() override;
void emitDirectiveSetMips64R6() override;
void emitDirectiveSetDsp() override;
void emitDirectiveSetDspr2() override;
void emitDirectiveSetNoDsp() override;
void emitDirectiveSetPop() override;
void emitDirectiveSetPush() override;
void emitDirectiveSetSoftFloat() override;
void emitDirectiveSetHardFloat() override;
// PIC support
void emitDirectiveCpLoad(unsigned RegNo) override;
void emitDirectiveCpLocal(unsigned RegNo) override;
/// Emit a .cprestore directive. If the offset is out of range then it will
/// be synthesized using the assembler temporary.
///
/// GetATReg() is a callback that can be used to obtain the current assembler
/// temporary and is only called when the assembler temporary is required. It
/// must handle the case where no assembler temporary is available (typically
/// by reporting an error).
bool emitDirectiveCpRestore(int Offset, function_ref<unsigned()> GetATReg,
SMLoc IDLoc, const MCSubtargetInfo *STI) override;
void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset,
const MCSymbol &Sym, bool IsReg) override;
void emitDirectiveCpreturn(unsigned SaveLocation,
bool SaveLocationIsRegister) override;
// FP abiflags directives
void emitDirectiveModuleFP() override;
void emitDirectiveModuleOddSPReg() override;
void emitDirectiveModuleSoftFloat() override;
void emitDirectiveModuleHardFloat() override;
void emitDirectiveModuleMT() override;
void emitDirectiveModuleCRC() override;
void emitDirectiveModuleNoCRC() override;
void emitDirectiveModuleVirt() override;
void emitDirectiveModuleNoVirt() override;
void emitDirectiveModuleGINV() override;
void emitDirectiveModuleNoGINV() override;
void emitDirectiveSetFp(MipsABIFlagsSection::FpABIKind Value) override;
void emitDirectiveSetOddSPReg() override;
void emitDirectiveSetNoOddSPReg() override;
};
// This part is for ELF object output
class MipsTargetELFStreamer : public MipsTargetStreamer {
bool MicroMipsEnabled;
const MCSubtargetInfo &STI;
bool Pic;
public:
bool isMicroMipsEnabled() const { return MicroMipsEnabled; }
MCELFStreamer &getStreamer();
MipsTargetELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI);
void setPic(bool Value) override { Pic = Value; }
void emitLabel(MCSymbol *Symbol) override;
void emitAssignment(MCSymbol *Symbol, const MCExpr *Value) override;
void finish() override;
void emitDirectiveSetMicroMips() override;
void emitDirectiveSetNoMicroMips() override;
void setUsesMicroMips() override;
void emitDirectiveSetMips16() override;
void emitDirectiveSetNoReorder() override;
void emitDirectiveEnd(StringRef Name) override;
void emitDirectiveEnt(const MCSymbol &Symbol) override;
void emitDirectiveAbiCalls() override;
void emitDirectiveNaN2008() override;
void emitDirectiveNaNLegacy() override;
void emitDirectiveOptionPic0() override;
void emitDirectiveOptionPic2() override;
void emitDirectiveInsn() override;
void emitFrame(unsigned StackReg, unsigned StackSize,
unsigned ReturnReg) override;
void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff) override;
void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) override;
// PIC support
void emitDirectiveCpLoad(unsigned RegNo) override;
void emitDirectiveCpLocal(unsigned RegNo) override;
bool emitDirectiveCpRestore(int Offset, function_ref<unsigned()> GetATReg,
SMLoc IDLoc, const MCSubtargetInfo *STI) override;
void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset,
const MCSymbol &Sym, bool IsReg) override;
void emitDirectiveCpreturn(unsigned SaveLocation,
bool SaveLocationIsRegister) override;
void emitMipsAbiFlags();
};
}
#endif