77a7a38006
MCContext does not destroy MCSymbols on shutdown. So, rather than putting SmallVectors (which may heap-allocate) inside MCSymbolWasm, use unowned pointer to a WasmSignature instead. The signatures are now owned by the AsmPrinter. Also uses WasmSignature instead of param and result vectors in TargetStreamer, and leaves some TODOs for further simplification. Differential Revision: https://reviews.llvm.org/D52580 llvm-svn: 343733
60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
// WebAssemblyInstPrinter.h - Print wasm MCInst to assembly syntax -*- 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 class prints an WebAssembly MCInst to wasm file syntax.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_INSTPRINTER_WEBASSEMBLYINSTPRINTER_H
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#define LLVM_LIB_TARGET_WEBASSEMBLY_INSTPRINTER_WEBASSEMBLYINSTPRINTER_H
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/BinaryFormat/Wasm.h"
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#include "llvm/MC/MCInstPrinter.h"
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#include "llvm/Support/MachineValueType.h"
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namespace llvm {
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class MCSubtargetInfo;
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class WebAssemblyInstPrinter final : public MCInstPrinter {
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uint64_t ControlFlowCounter;
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SmallVector<std::pair<uint64_t, bool>, 0> ControlFlowStack;
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public:
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WebAssemblyInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
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const MCRegisterInfo &MRI);
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void printRegName(raw_ostream &OS, unsigned RegNo) const override;
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void printInst(const MCInst *MI, raw_ostream &OS, StringRef Annot,
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const MCSubtargetInfo &STI) override;
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// Used by tblegen code.
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void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
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void printWebAssemblyP2AlignOperand(const MCInst *MI, unsigned OpNo,
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raw_ostream &O);
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void printWebAssemblySignatureOperand(const MCInst *MI, unsigned OpNo,
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raw_ostream &O);
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// Autogenerated by tblgen.
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void printInstruction(const MCInst *MI, raw_ostream &O);
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static const char *getRegisterName(unsigned RegNo);
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};
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namespace WebAssembly {
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const char *TypeToString(wasm::ValType Ty);
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} // end namespace WebAssembly
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} // end namespace llvm
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#endif
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