Imported Upstream version 5.18.0.179

Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215

external/llvm/lib/Target/Mips/MipsMCInstLower.h

@@ -0,0 +1,54 @@
+//===- MipsMCInstLower.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.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H
+#define LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H
+
+#include "MCTargetDesc/MipsMCExpr.h"
+#include "llvm/CodeGen/MachineOperand.h"
+#include "llvm/Support/Compiler.h"
+
+namespace llvm {
+
+class MachineBasicBlock;
+class MachineInstr;
+class MCContext;
+class MCInst;
+class MCOperand;
+class MipsAsmPrinter;
+
+/// MipsMCInstLower - This class is used to lower an MachineInstr into an
+///                   MCInst.
+class LLVM_LIBRARY_VISIBILITY MipsMCInstLower {
+  using MachineOperandType = MachineOperand::MachineOperandType;
+
+  MCContext *Ctx;
+  MipsAsmPrinter &AsmPrinter;
+
+public:
+  MipsMCInstLower(MipsAsmPrinter &asmprinter);
+
+  void Initialize(MCContext *C);
+  void Lower(const MachineInstr *MI, MCInst &OutMI) const;
+  MCOperand LowerOperand(const MachineOperand& MO, unsigned offset = 0) const;
+
+private:
+  MCOperand LowerSymbolOperand(const MachineOperand &MO,
+                               MachineOperandType MOTy, unsigned Offset) const;
+  MCOperand createSub(MachineBasicBlock *BB1, MachineBasicBlock *BB2,
+                      MipsMCExpr::MipsExprKind Kind) const;
+  void lowerLongBranchLUi(const MachineInstr *MI, MCInst &OutMI) const;
+  void lowerLongBranchADDiu(const MachineInstr *MI, MCInst &OutMI, int Opcode,
+                            MipsMCExpr::MipsExprKind Kind) const;
+  bool lowerLongBranch(const MachineInstr *MI, MCInst &OutMI) const;
+};
+
+} // end namespace llvm
+
+#endif // LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H