Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.h

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+//===-- WebAssemblyMCInstLower.h - Lower MachineInstr to MCInst -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief This file declares the class to lower WebAssembly MachineInstrs to
+/// their corresponding MCInst records.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYMCINSTLOWER_H
+#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYMCINSTLOWER_H
+
+#include "llvm/MC/MCInst.h"
+#include "llvm/Support/Compiler.h"
+
+namespace llvm {
+class WebAssemblyAsmPrinter;
+class MCContext;
+class MCSymbol;
+class MachineInstr;
+class MachineOperand;
+
+/// This class is used to lower an MachineInstr into an MCInst.
+class LLVM_LIBRARY_VISIBILITY WebAssemblyMCInstLower {
+  MCContext &Ctx;
+  WebAssemblyAsmPrinter &Printer;
+
+  MCSymbol *GetGlobalAddressSymbol(const MachineOperand &MO) const;
+  MCSymbol *GetExternalSymbolSymbol(const MachineOperand &MO) const;
+  MCOperand LowerSymbolOperand(MCSymbol *Sym, int64_t Offset,
+                               bool IsFunc) const;
+
+public:
+  WebAssemblyMCInstLower(MCContext &ctx, WebAssemblyAsmPrinter &printer)
+      : Ctx(ctx), Printer(printer) {}
+  void Lower(const MachineInstr *MI, MCInst &OutMI) const;
+};
+} // end namespace llvm
+
+#endif