1 files changed, 68 insertions, 0 deletions
diff --git a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyInstPrinter.h b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyInstPrinter.h
new file mode 100644
index 000000000000..cf37778099a0
--- /dev/null
+++ b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyInstPrinter.h
@@ -0,0 +1,68 @@
+// WebAssemblyInstPrinter.h - Print wasm MCInst to assembly syntax -*- C++ -*-//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This class prints an WebAssembly MCInst to wasm file syntax.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_INSTPRINTER_WEBASSEMBLYINSTPRINTER_H
+#define LLVM_LIB_TARGET_WEBASSEMBLY_INSTPRINTER_WEBASSEMBLYINSTPRINTER_H
+
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/BinaryFormat/Wasm.h"
+#include "llvm/MC/MCInstPrinter.h"
+#include "llvm/Support/MachineValueType.h"
+
+namespace llvm {
+
+class MCSubtargetInfo;
+
+class WebAssemblyInstPrinter final : public MCInstPrinter {
+  uint64_t ControlFlowCounter = 0;
+  uint64_t EHPadStackCounter = 0;
+  SmallVector<std::pair<uint64_t, bool>, 4> ControlFlowStack;
+  SmallVector<uint64_t, 4> EHPadStack;
+
+  enum EHInstKind { TRY, CATCH, END_TRY };
+  EHInstKind LastSeenEHInst = END_TRY;
+
+public:
+  WebAssemblyInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
+                         const MCRegisterInfo &MRI);
+
+  void printRegName(raw_ostream &OS, unsigned RegNo) const override;
+  void printInst(const MCInst *MI, raw_ostream &OS, StringRef Annot,
+                 const MCSubtargetInfo &STI) override;
+
+  // Used by tblegen code.
+  void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
+  void printBrList(const MCInst *MI, unsigned OpNo, raw_ostream &O);
+  void printWebAssemblyP2AlignOperand(const MCInst *MI, unsigned OpNo,
+                                      raw_ostream &O);
+  void printWebAssemblySignatureOperand(const MCInst *MI, unsigned OpNo,
+                                        raw_ostream &O);
+
+  // Autogenerated by tblgen.
+  void printInstruction(const MCInst *MI, raw_ostream &O);
+  static const char *getRegisterName(unsigned RegNo);
+};
+
+namespace WebAssembly {
+
+const char *typeToString(wasm::ValType Ty);
+const char *anyTypeToString(unsigned Ty);
+
+std::string typeListToString(ArrayRef<wasm::ValType> List);
+std::string signatureToString(const wasm::WasmSignature *Sig);
+
+} // end namespace WebAssembly
+
+} // end namespace llvm
+
+#endif