| //===-- Mips16ISelLowering.h - Mips16 DAG Lowering Interface ----*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Subclass of MipsTargetLowering specialized for mips16. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_MIPS_MIPS16ISELLOWERING_H |
| #define LLVM_LIB_TARGET_MIPS_MIPS16ISELLOWERING_H |
| |
| #include "MipsISelLowering.h" |
| |
| namespace llvm { |
| class Mips16TargetLowering : public MipsTargetLowering { |
| public: |
| explicit Mips16TargetLowering(const MipsTargetMachine &TM, |
| const MipsSubtarget &STI); |
| |
| bool allowsMisalignedMemoryAccesses(EVT VT, unsigned AddrSpace, |
| Align Alignment, |
| MachineMemOperand::Flags Flags, |
| bool *Fast) const override; |
| |
| MachineBasicBlock * |
| EmitInstrWithCustomInserter(MachineInstr &MI, |
| MachineBasicBlock *MBB) const override; |
| |
| private: |
| bool isEligibleForTailCallOptimization( |
| const CCState &CCInfo, unsigned NextStackOffset, |
| const MipsFunctionInfo &FI) const override; |
| |
| void setMips16HardFloatLibCalls(); |
| |
| unsigned int |
| getMips16HelperFunctionStubNumber(ArgListTy &Args) const; |
| |
| const char *getMips16HelperFunction |
| (Type* RetTy, ArgListTy &Args, bool &needHelper) const; |
| |
| void |
| getOpndList(SmallVectorImpl<SDValue> &Ops, |
| std::deque< std::pair<unsigned, SDValue> > &RegsToPass, |
| bool IsPICCall, bool GlobalOrExternal, bool InternalLinkage, |
| bool IsCallReloc, CallLoweringInfo &CLI, SDValue Callee, |
| SDValue Chain) const override; |
| |
| MachineBasicBlock *emitSel16(unsigned Opc, MachineInstr &MI, |
| MachineBasicBlock *BB) const; |
| |
| MachineBasicBlock *emitSeliT16(unsigned Opc1, unsigned Opc2, |
| MachineInstr &MI, |
| MachineBasicBlock *BB) const; |
| |
| MachineBasicBlock *emitSelT16(unsigned Opc1, unsigned Opc2, |
| MachineInstr &MI, |
| MachineBasicBlock *BB) const; |
| |
| MachineBasicBlock *emitFEXT_T8I816_ins(unsigned BtOpc, unsigned CmpOpc, |
| MachineInstr &MI, |
| MachineBasicBlock *BB) const; |
| |
| MachineBasicBlock *emitFEXT_T8I8I16_ins(unsigned BtOpc, unsigned CmpiOpc, |
| unsigned CmpiXOpc, bool ImmSigned, |
| MachineInstr &MI, |
| MachineBasicBlock *BB) const; |
| |
| MachineBasicBlock *emitFEXT_CCRX16_ins(unsigned SltOpc, MachineInstr &MI, |
| MachineBasicBlock *BB) const; |
| |
| MachineBasicBlock *emitFEXT_CCRXI16_ins(unsigned SltiOpc, unsigned SltiXOpc, |
| MachineInstr &MI, |
| MachineBasicBlock *BB) const; |
| }; |
| } |
| |
| #endif |