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8dac2acfcf
Extend LONG_BRANCH_LUi and LONG_BRANCH_ADDiu pseudo instructions with additional flag, so instead of always lowering to lui %hi(...), addiu %lo(...) or addiu %hi(...), now they can lower to either %lo, %hi, %higher or %highest depending on the added flag. Differential Revision: https://reviews.llvm.org/D47941 llvm-svn: 334490
55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
//===- MipsMCInstLower.h - Lower MachineInstr to MCInst --------*- 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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#ifndef LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H
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#define LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H
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#include "MCTargetDesc/MipsMCExpr.h"
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#include "llvm/CodeGen/MachineOperand.h"
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#include "llvm/Support/Compiler.h"
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namespace llvm {
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class MachineBasicBlock;
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class MachineInstr;
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class MCContext;
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class MCInst;
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class MCOperand;
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class MipsAsmPrinter;
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/// MipsMCInstLower - This class is used to lower an MachineInstr into an
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/// MCInst.
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class LLVM_LIBRARY_VISIBILITY MipsMCInstLower {
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using MachineOperandType = MachineOperand::MachineOperandType;
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MCContext *Ctx;
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MipsAsmPrinter &AsmPrinter;
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public:
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MipsMCInstLower(MipsAsmPrinter &asmprinter);
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void Initialize(MCContext *C);
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void Lower(const MachineInstr *MI, MCInst &OutMI) const;
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MCOperand LowerOperand(const MachineOperand& MO, unsigned offset = 0) const;
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private:
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MCOperand LowerSymbolOperand(const MachineOperand &MO,
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MachineOperandType MOTy, unsigned Offset) const;
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MCOperand createSub(MachineBasicBlock *BB1, MachineBasicBlock *BB2,
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MipsMCExpr::MipsExprKind Kind) const;
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void lowerLongBranchLUi(const MachineInstr *MI, MCInst &OutMI) const;
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void lowerLongBranchADDiu(const MachineInstr *MI, MCInst &OutMI,
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int Opcode) const;
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bool lowerLongBranch(const MachineInstr *MI, MCInst &OutMI) const;
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};
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} // end namespace llvm
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#endif // LLVM_LIB_TARGET_MIPS_MIPSMCINSTLOWER_H
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