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