1 //===-- SPIRVAsmBackend.cpp - SPIR-V Assembler Backend ---------*- C++ -*--===//
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 #include "MCTargetDesc/SPIRVMCTargetDesc.h"
10 #include "llvm/MC/MCAsmBackend.h"
11 #include "llvm/MC/MCAssembler.h"
12 #include "llvm/MC/MCObjectWriter.h"
13 #include "llvm/MC/MCSPIRVObjectWriter.h"
14
15 using namespace llvm;
16
17 namespace {
18
19 class SPIRVAsmBackend : public MCAsmBackend {
20 public:
SPIRVAsmBackend(llvm::endianness Endian)21 SPIRVAsmBackend(llvm::endianness Endian) : MCAsmBackend(Endian) {}
22
applyFixup(const MCFragment &,const MCFixup &,const MCValue & Target,MutableArrayRef<char> Data,uint64_t Value,bool IsResolved)23 void applyFixup(const MCFragment &, const MCFixup &, const MCValue &Target,
24 MutableArrayRef<char> Data, uint64_t Value,
25 bool IsResolved) override {}
26
27 std::unique_ptr<MCObjectTargetWriter>
createObjectTargetWriter() const28 createObjectTargetWriter() const override {
29 return std::make_unique<MCSPIRVObjectTargetWriter>();
30 }
31
writeNopData(raw_ostream & OS,uint64_t Count,const MCSubtargetInfo * STI) const32 bool writeNopData(raw_ostream &OS, uint64_t Count,
33 const MCSubtargetInfo *STI) const override {
34 return false;
35 }
36 };
37
38 } // end anonymous namespace
39
createSPIRVAsmBackend(const Target & T,const MCSubtargetInfo & STI,const MCRegisterInfo & MRI,const MCTargetOptions &)40 MCAsmBackend *llvm::createSPIRVAsmBackend(const Target &T,
41 const MCSubtargetInfo &STI,
42 const MCRegisterInfo &MRI,
43 const MCTargetOptions &) {
44 return new SPIRVAsmBackend(llvm::endianness::little);
45 }
46