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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
// WebAssemblyAsmPrinter.h - WebAssembly implementation of AsmPrinter-*- C++ -*-
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYASMPRINTER_H
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#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYASMPRINTER_H
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#include "WebAssemblyMachineFunctionInfo.h"
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#include "WebAssemblySubtarget.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/Target/TargetMachine.h"
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namespace llvm {
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class MCSymbol;
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class WebAssemblyTargetStreamer;
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class WebAssemblyMCInstLower;
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class LLVM_LIBRARY_VISIBILITY WebAssemblyAsmPrinter final : public AsmPrinter {
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const WebAssemblySubtarget *Subtarget;
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const MachineRegisterInfo *MRI;
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WebAssemblyFunctionInfo *MFI;
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// TODO: Do the uniquing of Signatures here instead of ObjectFileWriter?
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std::vector<std::unique_ptr<wasm::WasmSignature>> Signatures;
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public:
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explicit WebAssemblyAsmPrinter(TargetMachine &TM,
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std::unique_ptr<MCStreamer> Streamer)
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: AsmPrinter(TM, std::move(Streamer)), Subtarget(nullptr), MRI(nullptr),
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MFI(nullptr) {}
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StringRef getPassName() const override {
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return "WebAssembly Assembly Printer";
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}
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const WebAssemblySubtarget &getSubtarget() const { return *Subtarget; }
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void addSignature(std::unique_ptr<wasm::WasmSignature> &&Sig) {
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Signatures.push_back(std::move(Sig));
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}
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//===------------------------------------------------------------------===//
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// MachineFunctionPass Implementation.
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//===------------------------------------------------------------------===//
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bool runOnMachineFunction(MachineFunction &MF) override {
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Subtarget = &MF.getSubtarget<WebAssemblySubtarget>();
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MRI = &MF.getRegInfo();
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MFI = MF.getInfo<WebAssemblyFunctionInfo>();
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return AsmPrinter::runOnMachineFunction(MF);
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}
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//===------------------------------------------------------------------===//
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// AsmPrinter Implementation.
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//===------------------------------------------------------------------===//
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void EmitEndOfAsmFile(Module &M) override;
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void EmitProducerInfo(Module &M);
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void EmitJumpTableInfo() override;
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void EmitConstantPool() override;
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void EmitFunctionBodyStart() override;
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void EmitInstruction(const MachineInstr *MI) override;
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const MCExpr *lowerConstant(const Constant *CV) override;
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bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
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unsigned AsmVariant, const char *ExtraCode,
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raw_ostream &OS) override;
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bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
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unsigned AsmVariant, const char *ExtraCode,
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raw_ostream &OS) override;
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MVT getRegType(unsigned RegNo) const;
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std::string regToString(const MachineOperand &MO);
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WebAssemblyTargetStreamer *getTargetStreamer();
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};
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} // end namespace llvm
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#endif
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