ec17c4f075
Add basis of CSKY MCTargetDesc and it's enough to compile and link but doesn't yet do anything particularly useful. Once an ASM parser and printer are added in the next two patches, the whole thing can be usefully tested. Differential Revision: https://reviews.llvm.org/D93372
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
//===-- CSKYMCCodeEmitter.cpp - CSKY Code Emitter interface ---------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the CSKYMCCodeEmitter class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYMCCODEEMITTER_H
|
|
#define LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYMCCODEEMITTER_H
|
|
|
|
#include "llvm/MC/MCCodeEmitter.h"
|
|
#include "llvm/MC/MCContext.h"
|
|
|
|
namespace llvm {
|
|
|
|
class CSKYMCCodeEmitter : public MCCodeEmitter {
|
|
MCContext &Ctx;
|
|
const MCInstrInfo &MII;
|
|
|
|
public:
|
|
CSKYMCCodeEmitter(MCContext &Ctx, const MCInstrInfo &MII)
|
|
: Ctx(Ctx), MII(MII) {}
|
|
|
|
~CSKYMCCodeEmitter() {}
|
|
|
|
void encodeInstruction(const MCInst &Inst, raw_ostream &OS,
|
|
SmallVectorImpl<MCFixup> &Fixups,
|
|
const MCSubtargetInfo &STI) const override;
|
|
|
|
// Generated by tablegen.
|
|
uint64_t getBinaryCodeForInstr(const MCInst &MI,
|
|
SmallVectorImpl<MCFixup> &Fixups,
|
|
const MCSubtargetInfo &STI) const;
|
|
|
|
// Default encoding method used by tablegen.
|
|
unsigned getMachineOpValue(const MCInst &MI, const MCOperand &MO,
|
|
SmallVectorImpl<MCFixup> &Fixups,
|
|
const MCSubtargetInfo &STI) const;
|
|
|
|
template <int shift = 0>
|
|
unsigned getImmOpValue(const MCInst &MI, unsigned Idx,
|
|
SmallVectorImpl<MCFixup> &Fixups,
|
|
const MCSubtargetInfo &STI) const {
|
|
const MCOperand &MO = MI.getOperand(Idx);
|
|
assert(MO.isImm() && "Unexpected MO type.");
|
|
return (MO.getImm() >> shift);
|
|
}
|
|
|
|
unsigned getOImmOpValue(const MCInst &MI, unsigned Idx,
|
|
SmallVectorImpl<MCFixup> &Fixups,
|
|
const MCSubtargetInfo &STI) const;
|
|
};
|
|
|
|
} // namespace llvm
|
|
|
|
#endif // LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYMCCODEEMITTER_H
|