1 //==-- WebAssemblyTargetStreamer.h - WebAssembly Target Streamer -*- C++ -*-==//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief This file declares WebAssembly-specific target streamer classes.
12 /// These are for implementing support for target-specific assembly directives.
14 //===----------------------------------------------------------------------===//
16 #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_MCTARGETDESC_WEBASSEMBLYTARGETSTREAMER_H
17 #define LLVM_LIB_TARGET_WEBASSEMBLY_MCTARGETDESC_WEBASSEMBLYTARGETSTREAMER_H
19 #include "llvm/BinaryFormat/Wasm.h"
20 #include "llvm/CodeGen/MachineValueType.h"
21 #include "llvm/MC/MCStreamer.h"
28 /// WebAssembly-specific streamer interface, to implement support
29 /// WebAssembly-specific assembly directives.
30 class WebAssemblyTargetStreamer : public MCTargetStreamer {
32 explicit WebAssemblyTargetStreamer(MCStreamer &S);
35 virtual void emitParam(MCSymbol *Symbol, ArrayRef<MVT> Types) = 0;
37 virtual void emitResult(MCSymbol *Symbol, ArrayRef<MVT> Types) = 0;
39 virtual void emitLocal(ArrayRef<MVT> Types) = 0;
41 virtual void emitGlobal(ArrayRef<wasm::Global> Globals) = 0;
43 virtual void emitEndFunc() = 0;
45 virtual void emitIndirectFunctionType(MCSymbol *Symbol,
46 SmallVectorImpl<MVT> &Params,
47 SmallVectorImpl<MVT> &Results) = 0;
49 virtual void emitIndIdx(const MCExpr *Value) = 0;
51 virtual void emitGlobalImport(StringRef name) = 0;
54 void emitValueType(wasm::ValType Type);
57 /// This part is for ascii assembly output
58 class WebAssemblyTargetAsmStreamer final : public WebAssemblyTargetStreamer {
59 formatted_raw_ostream &OS;
62 WebAssemblyTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
64 void emitParam(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
65 void emitResult(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
66 void emitLocal(ArrayRef<MVT> Types) override;
67 void emitGlobal(ArrayRef<wasm::Global> Globals) override;
68 void emitEndFunc() override;
69 void emitIndirectFunctionType(MCSymbol *Symbol,
70 SmallVectorImpl<MVT> &Params,
71 SmallVectorImpl<MVT> &Results) override;
72 void emitIndIdx(const MCExpr *Value) override;
73 void emitGlobalImport(StringRef name) override;
76 /// This part is for ELF object output
77 class WebAssemblyTargetELFStreamer final : public WebAssemblyTargetStreamer {
79 explicit WebAssemblyTargetELFStreamer(MCStreamer &S);
81 void emitParam(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
82 void emitResult(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
83 void emitLocal(ArrayRef<MVT> Types) override;
84 void emitGlobal(ArrayRef<wasm::Global> Globals) override;
85 void emitEndFunc() override;
86 void emitIndirectFunctionType(MCSymbol *Symbol,
87 SmallVectorImpl<MVT> &Params,
88 SmallVectorImpl<MVT> &Results) override;
89 void emitIndIdx(const MCExpr *Value) override;
90 void emitGlobalImport(StringRef name) override;
93 /// This part is for Wasm object output
94 class WebAssemblyTargetWasmStreamer final : public WebAssemblyTargetStreamer {
96 explicit WebAssemblyTargetWasmStreamer(MCStreamer &S);
98 void emitParam(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
99 void emitResult(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
100 void emitLocal(ArrayRef<MVT> Types) override;
101 void emitGlobal(ArrayRef<wasm::Global> Globals) override;
102 void emitEndFunc() override;
103 void emitIndirectFunctionType(MCSymbol *Symbol,
104 SmallVectorImpl<MVT> &Params,
105 SmallVectorImpl<MVT> &Results) override;
106 void emitIndIdx(const MCExpr *Value) override;
107 void emitGlobalImport(StringRef name) override;
110 } // end namespace llvm