mirror of
https://github.com/RPCS3/llvm.git
synced 2026-08-27 21:00:01 -04:00
Wouter van Oortmerssen
2495823e18
Summary: Assembly output can use globals like __stack_pointer implicitly, but has no way of indicating the type of such a global, which makes it hard for tools processing it (such as the MC Assembler) to reconstruct this information. The improved assembler directives parsing (in progress in https://reviews.llvm.org/D53842) will make use of this information. Also deleted code for the .import_global directive which was unused. New test case in userstack.ll Reviewers: dschuff, sbc100 Subscribers: jgravelle-google, aheejin, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D54012 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@345917 91177308-0d34-0410-b5e6-96231b3b80d8
90 lines
3.1 KiB
C++
90 lines
3.1 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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/// 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 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(MCSymbolWasm *Symbol) = 0;
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/// .indidx
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virtual void emitIndIdx(const MCExpr *Value) = 0;
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/// .globaltype
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virtual void emitGlobalType(MCSymbolWasm *Sym) = 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(MCSymbolWasm *Symbol) override;
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void emitIndIdx(const MCExpr *Value) override;
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void emitGlobalType(MCSymbolWasm *Sym) 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(MCSymbolWasm *Symbol) override;
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void emitIndIdx(const MCExpr *Value) override;
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void emitGlobalType(MCSymbolWasm *Sym) 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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