5afdd64a53
This updates InstPrinter and AsmParser for `delegate` and `catch_all` instructions. Both will reject programs with multiple `catch_all`s per a single `try`. And InstPrinter uses `EHInstStack` to figure out whether to print catch label comments: It does not print catch label comments for second `catch` or `catch_all` in a `try`. Reviewed By: aardappel Differential Revision: https://reviews.llvm.org/D94051
77 lines
2.9 KiB
C++
77 lines
2.9 KiB
C++
// WebAssemblyInstPrinter.h - Print wasm MCInst to assembly syntax -*- 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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///
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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 = 0;
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SmallVector<std::pair<uint64_t, bool>, 4> ControlFlowStack;
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SmallVector<uint64_t, 4> EHPadStack;
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// 'delegate' can target any block-like structure, but in case the target is
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// 'try', it rethrows to the corresponding 'catch'. Because it can target all
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// blocks but with a slightly different semantics with branches, we need a
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// separate stack for 'delegate'.
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SmallVector<uint64_t, 4> DelegateStack;
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enum EHInstKind { TRY, CATCH, CATCH_ALL };
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SmallVector<EHInstKind, 4> EHInstStack;
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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, uint64_t Address, StringRef Annot,
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const MCSubtargetInfo &STI, raw_ostream &OS) 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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bool IsVariadicDef = false);
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void printBrList(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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void printWebAssemblyHeapTypeOperand(const MCInst *MI, unsigned OpNo,
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raw_ostream &O);
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// Autogenerated by tblgen.
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std::pair<const char *, uint64_t> getMnemonic(const MCInst *MI) override;
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void printInstruction(const MCInst *MI, uint64_t Address, 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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const char *anyTypeToString(unsigned Ty);
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std::string typeListToString(ArrayRef<wasm::ValType> List);
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std::string signatureToString(const wasm::WasmSignature *Sig);
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} // end namespace WebAssembly
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} // end namespace llvm
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#endif
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