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  1. //===- MCSPIRVStreamer.h - MCStreamer SPIR-V Object File Interface -*- 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. // Overrides MCObjectStreamer to disable all unnecessary features with stubs.
  10. //
  11. //===----------------------------------------------------------------------===//
  12.  
  13. #ifndef LLVM_MC_MCSPIRVSTREAMER_H
  14. #define LLVM_MC_MCSPIRVSTREAMER_H
  15.  
  16. #include "llvm/MC/MCAsmBackend.h"
  17. #include "llvm/MC/MCCodeEmitter.h"
  18. #include "llvm/MC/MCObjectStreamer.h"
  19. #include "llvm/MC/MCObjectWriter.h"
  20.  
  21. namespace llvm {
  22. class MCInst;
  23. class raw_ostream;
  24.  
  25. class MCSPIRVStreamer : public MCObjectStreamer {
  26. public:
  27.   MCSPIRVStreamer(MCContext &Context, std::unique_ptr<MCAsmBackend> TAB,
  28.                   std::unique_ptr<MCObjectWriter> OW,
  29.                   std::unique_ptr<MCCodeEmitter> Emitter)
  30.       : MCObjectStreamer(Context, std::move(TAB), std::move(OW),
  31.                          std::move(Emitter)) {}
  32.  
  33.   bool emitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override {
  34.     return false;
  35.   }
  36.   void emitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
  37.                         Align ByteAlignment) override {}
  38.   void emitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
  39.                     uint64_t Size = 0, Align ByteAlignment = Align(1),
  40.                     SMLoc Loc = SMLoc()) override {}
  41.  
  42. private:
  43.   void emitInstToData(const MCInst &Inst, const MCSubtargetInfo &) override;
  44. };
  45.  
  46. } // end namespace llvm
  47.  
  48. #endif
  49.