13e77db2df
This is used by llvm tblgen as well as by LLVM Targets, so the only common place is Support for now. (maybe we need another target for these sorts of things - but for now I'm at least making them correct & we can make them better if/when people have strong feelings) llvm-svn: 328395
114 lines
4.2 KiB
C++
114 lines
4.2 KiB
C++
//==-- WebAssemblyTargetStreamer.h - WebAssembly Target Streamer -*- C++ -*-==//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief This file declares WebAssembly-specific target streamer classes.
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/// These are for implementing support for target-specific assembly directives.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_MCTARGETDESC_WEBASSEMBLYTARGETSTREAMER_H
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#define LLVM_LIB_TARGET_WEBASSEMBLY_MCTARGETDESC_WEBASSEMBLYTARGETSTREAMER_H
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#include "llvm/BinaryFormat/Wasm.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/Support/MachineValueType.h"
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namespace llvm {
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class MCELFStreamer;
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class MCWasmStreamer;
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class MCSymbolWasm;
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/// WebAssembly-specific streamer interface, to implement support
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/// WebAssembly-specific assembly directives.
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class WebAssemblyTargetStreamer : public MCTargetStreamer {
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public:
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explicit WebAssemblyTargetStreamer(MCStreamer &S);
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/// .param
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virtual void emitParam(MCSymbol *Symbol, ArrayRef<MVT> Types) = 0;
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/// .result
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virtual void emitResult(MCSymbol *Symbol, ArrayRef<MVT> Types) = 0;
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/// .local
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virtual void emitLocal(ArrayRef<MVT> Types) = 0;
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/// .endfunc
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virtual void emitEndFunc() = 0;
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/// .functype
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virtual void emitIndirectFunctionType(MCSymbol *Symbol,
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SmallVectorImpl<MVT> &Params,
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SmallVectorImpl<MVT> &Results) = 0;
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/// .indidx
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virtual void emitIndIdx(const MCExpr *Value) = 0;
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/// .import_global
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virtual void emitGlobalImport(StringRef name) = 0;
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/// .import_module
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virtual void emitImportModule(MCSymbolWasm *Sym, StringRef ModuleName) = 0;
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protected:
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void emitValueType(wasm::ValType Type);
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};
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/// This part is for ascii assembly output
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class WebAssemblyTargetAsmStreamer final : public WebAssemblyTargetStreamer {
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formatted_raw_ostream &OS;
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public:
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WebAssemblyTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
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void emitParam(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
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void emitResult(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
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void emitLocal(ArrayRef<MVT> Types) override;
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void emitEndFunc() override;
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void emitIndirectFunctionType(MCSymbol *Symbol,
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SmallVectorImpl<MVT> &Params,
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SmallVectorImpl<MVT> &Results) override;
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void emitIndIdx(const MCExpr *Value) override;
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void emitGlobalImport(StringRef name) override;
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void emitImportModule(MCSymbolWasm *Sym, StringRef ModuleName) override;
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};
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/// This part is for ELF object output
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class WebAssemblyTargetELFStreamer final : public WebAssemblyTargetStreamer {
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public:
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explicit WebAssemblyTargetELFStreamer(MCStreamer &S);
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void emitParam(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
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void emitResult(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
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void emitLocal(ArrayRef<MVT> Types) override;
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void emitEndFunc() override;
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void emitIndirectFunctionType(MCSymbol *Symbol,
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SmallVectorImpl<MVT> &Params,
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SmallVectorImpl<MVT> &Results) override;
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void emitIndIdx(const MCExpr *Value) override;
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void emitGlobalImport(StringRef name) override;
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void emitImportModule(MCSymbolWasm *Sym, StringRef ModuleName) override;
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};
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/// This part is for Wasm object output
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class WebAssemblyTargetWasmStreamer final : public WebAssemblyTargetStreamer {
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public:
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explicit WebAssemblyTargetWasmStreamer(MCStreamer &S);
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void emitParam(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
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void emitResult(MCSymbol *Symbol, ArrayRef<MVT> Types) override;
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void emitLocal(ArrayRef<MVT> Types) override;
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void emitEndFunc() override;
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void emitIndirectFunctionType(MCSymbol *Symbol,
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SmallVectorImpl<MVT> &Params,
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SmallVectorImpl<MVT> &Results) override;
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void emitIndIdx(const MCExpr *Value) override;
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void emitGlobalImport(StringRef name) override;
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void emitImportModule(MCSymbolWasm *Sym, StringRef ModuleName) override;
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};
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} // end namespace llvm
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#endif
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