| //===-- PPCMCCodeEmitter.h - Convert PPC code to machine code -------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements the PPCMCCodeEmitter class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_PPC_MCCODEEMITTER_PPCCODEEMITTER_H |
| #define LLVM_LIB_TARGET_PPC_MCCODEEMITTER_PPCCODEEMITTER_H |
| |
| #include "llvm/MC/MCAsmInfo.h" |
| #include "llvm/MC/MCCodeEmitter.h" |
| #include "llvm/MC/MCSubtargetInfo.h" |
| #include "llvm/MC/MCInstrInfo.h" |
| #include "llvm/MC/MCContext.h" |
| #include "llvm/MC/MCInst.h" |
| |
| namespace llvm { |
| |
| class PPCMCCodeEmitter : public MCCodeEmitter { |
| const MCInstrInfo &MCII; |
| const MCContext &CTX; |
| bool IsLittleEndian; |
| |
| public: |
| PPCMCCodeEmitter(const MCInstrInfo &mcii, MCContext &ctx) |
| : MCII(mcii), CTX(ctx), |
| IsLittleEndian(ctx.getAsmInfo()->isLittleEndian()) {} |
| PPCMCCodeEmitter(const PPCMCCodeEmitter &) = delete; |
| void operator=(const PPCMCCodeEmitter &) = delete; |
| ~PPCMCCodeEmitter() override = default; |
| |
| unsigned getDirectBrEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getCondBrEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getAbsDirectBrEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getAbsCondBrEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getImm16Encoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getMemRIEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getMemRIXEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getMemRIX16Encoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getSPE8DisEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getSPE4DisEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getSPE2DisEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getTLSRegEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned getTLSCallEncoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| unsigned get_crbitm_encoding(const MCInst &MI, unsigned OpNo, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| |
| /// getMachineOpValue - Return binary encoding of operand. If the machine |
| /// operand requires relocation, record the relocation and return zero. |
| unsigned getMachineOpValue(const MCInst &MI, const MCOperand &MO, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| |
| // getBinaryCodeForInstr - TableGen'erated function for getting the |
| // binary encoding for an instruction. |
| uint64_t getBinaryCodeForInstr(const MCInst &MI, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const; |
| |
| void encodeInstruction(const MCInst &MI, raw_ostream &OS, |
| SmallVectorImpl<MCFixup> &Fixups, |
| const MCSubtargetInfo &STI) const override; |
| |
| // Get the number of bytes used to encode the given MCInst. |
| unsigned getInstSizeInBytes(const MCInst &MI) const; |
| |
| private: |
| uint64_t computeAvailableFeatures(const FeatureBitset &FB) const; |
| void verifyInstructionPredicates(const MCInst &MI, |
| uint64_t AvailableFeatures) const; |
| }; |
| |
| } // namespace llvm |
| |
| #endif // LLVM_LIB_TARGET_PPC_MCCODEEMITTER_PPCCODEEMITTER_H |