1 //===-- CSKYAsmBackend.h - CSKY Assembler Backend -------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H 10 #define LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H 11 12 #include "MCTargetDesc/CSKYFixupKinds.h" 13 #include "llvm/MC/MCAsmBackend.h" 14 #include "llvm/MC/MCSubtargetInfo.h" 15 #include "llvm/MC/MCTargetOptions.h" 16 17 namespace llvm { 18 19 class CSKYAsmBackend : public MCAsmBackend { 20 21 public: CSKYAsmBackend(const MCSubtargetInfo & STI,const MCTargetOptions & OP)22 CSKYAsmBackend(const MCSubtargetInfo &STI, const MCTargetOptions &OP) 23 : MCAsmBackend(llvm::endianness::little) {} 24 25 std::optional<bool> evaluateFixup(const MCFragment &, MCFixup &, MCValue &, 26 uint64_t &) override; 27 void applyFixup(const MCFragment &, const MCFixup &, const MCValue &Target, 28 MutableArrayRef<char> Data, uint64_t Value, 29 bool IsResolved) override; 30 31 MCFixupKindInfo getFixupKindInfo(MCFixupKind Kind) const override; 32 33 bool fixupNeedsRelaxation(const MCFixup &Fixup, 34 uint64_t Value) const override; 35 36 bool mayNeedRelaxation(unsigned Opcode, ArrayRef<MCOperand> Operands, 37 const MCSubtargetInfo &STI) const override; 38 void relaxInstruction(MCInst &Inst, 39 const MCSubtargetInfo &STI) const override; 40 41 bool fixupNeedsRelaxationAdvanced(const MCFixup &, const MCValue &, uint64_t, 42 bool) const override; 43 44 bool writeNopData(raw_ostream &OS, uint64_t Count, 45 const MCSubtargetInfo *STI) const override; 46 47 bool shouldForceRelocation(const MCFixup &Fixup, const MCValue &Target); 48 49 std::unique_ptr<MCObjectTargetWriter> 50 createObjectTargetWriter() const override; 51 }; 52 } // namespace llvm 53 54 #endif // LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H 55