LLVM  15.0.0git
MCDXContainerStreamer.h
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1 //===- MCDXContainerStreamer.h - MCDXContainerStreamer 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 // The DXContainer format isn't a fully featured object format. It doesn't
11 // support symbols, and initially it will not support instruction data since it
12 // is used as a bitcode container for DXIL.
13 //
14 //===----------------------------------------------------------------------===//
15 
16 #ifndef LLVM_MC_MCDXCONTAINERSTREAMER_H
17 #define LLVM_MC_MCDXCONTAINERSTREAMER_H
18 
19 #include "llvm/MC/MCAsmBackend.h"
20 #include "llvm/MC/MCCodeEmitter.h"
22 #include "llvm/MC/MCObjectWriter.h"
23 
24 namespace llvm {
25 class MCInst;
26 class raw_ostream;
27 
29 public:
30  MCDXContainerStreamer(MCContext &Context, std::unique_ptr<MCAsmBackend> TAB,
31  std::unique_ptr<MCObjectWriter> OW,
32  std::unique_ptr<MCCodeEmitter> Emitter)
33  : MCObjectStreamer(Context, std::move(TAB), std::move(OW),
34  std::move(Emitter)) {}
35 
36  bool emitSymbolAttribute(MCSymbol *, MCSymbolAttr) override { return false; }
37  void emitCommonSymbol(MCSymbol *, uint64_t, unsigned) override {}
38  void emitZerofill(MCSection *, MCSymbol *Symbol = nullptr, uint64_t Size = 0,
39  unsigned ByteAlignment = 0, SMLoc Loc = SMLoc()) override {}
40 
41 private:
42  void emitInstToData(const MCInst &, const MCSubtargetInfo &) override;
43 };
44 
45 } // end namespace llvm
46 
47 #endif // LLVM_MC_MCDXCONTAINERSTREAMER_H
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:17
llvm::MCSymbol
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
Definition: MCSymbol.h:41
llvm::MCContext
Context object for machine code objects.
Definition: MCContext.h:76
MCCodeEmitter.h
llvm::MCInst
Instances of this class represent a single low-level machine instruction.
Definition: MCInst.h:184
llvm::MCSymbolAttr
MCSymbolAttr
Definition: MCDirectives.h:18
Context
LLVMContext & Context
Definition: NVVMIntrRange.cpp:66
MCObjectStreamer.h
MCAsmBackend.h
llvm::SMLoc
Represents a location in source code.
Definition: SMLoc.h:23
llvm::MCObjectStreamer
Streaming object file generation interface.
Definition: MCObjectStreamer.h:42
llvm::MCDXContainerStreamer::emitSymbolAttribute
bool emitSymbolAttribute(MCSymbol *, MCSymbolAttr) override
Add the given Attribute to Symbol.
Definition: MCDXContainerStreamer.h:36
uint64_t
llvm::move
OutputIt move(R &&Range, OutputIt Out)
Provide wrappers to std::move which take ranges instead of having to pass begin/end explicitly.
Definition: STLExtras.h:1675
llvm::MCSection
Instances of this class represent a uniqued identifier for a section in the current translation unit.
Definition: MCSection.h:39
llvm::MCDXContainerStreamer::emitZerofill
void emitZerofill(MCSection *, MCSymbol *Symbol=nullptr, uint64_t Size=0, unsigned ByteAlignment=0, SMLoc Loc=SMLoc()) override
Emit the zerofill section and an optional symbol.
Definition: MCDXContainerStreamer.h:38
MCObjectWriter.h
std
Definition: BitVector.h:851
llvm::MCDXContainerStreamer
Definition: MCDXContainerStreamer.h:28
llvm::LCOMM::ByteAlignment
@ ByteAlignment
Definition: MCAsmInfo.h:50
llvm::ARMBuildAttrs::Symbol
@ Symbol
Definition: ARMBuildAttributes.h:83
llvm::MCDXContainerStreamer::emitCommonSymbol
void emitCommonSymbol(MCSymbol *, uint64_t, unsigned) override
Emit a common symbol.
Definition: MCDXContainerStreamer.h:37
llvm::MCDXContainerStreamer::MCDXContainerStreamer
MCDXContainerStreamer(MCContext &Context, std::unique_ptr< MCAsmBackend > TAB, std::unique_ptr< MCObjectWriter > OW, std::unique_ptr< MCCodeEmitter > Emitter)
Definition: MCDXContainerStreamer.h:30
llvm::MCSubtargetInfo
Generic base class for all target subtargets.
Definition: MCSubtargetInfo.h:76