| Akira Hatanaka | 5ac065a | 2013-03-13 00:54:29 +0000 | [diff] [blame] | 1 | //===-- Mips16ISelLowering.h - Mips16 DAG Lowering Interface ----*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // Subclass of MipsTargetLowering specialized for mips16. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #ifndef Mips16ISELLOWERING_H |
| 15 | #define Mips16ISELLOWERING_H |
| 16 | |
| 17 | #include "MipsISelLowering.h" |
| 18 | |
| 19 | namespace llvm { |
| 20 | class Mips16TargetLowering : public MipsTargetLowering { |
| 21 | public: |
| 22 | explicit Mips16TargetLowering(MipsTargetMachine &TM); |
| 23 | |
| 24 | virtual bool allowsUnalignedMemoryAccesses(EVT VT, bool *Fast) const; |
| 25 | |
| 26 | virtual MachineBasicBlock * |
| 27 | EmitInstrWithCustomInserter(MachineInstr *MI, MachineBasicBlock *MBB) const; |
| 28 | |
| 29 | private: |
| 30 | virtual bool |
| 31 | isEligibleForTailCallOptimization(const MipsCC &MipsCCInfo, |
| 32 | unsigned NextStackOffset, |
| 33 | const MipsFunctionInfo& FI) const; |
| 34 | |
| 35 | void setMips16LibcallName(RTLIB::Libcall, const char *Name); |
| 36 | |
| 37 | void setMips16HardFloatLibCalls(); |
| 38 | |
| 39 | unsigned int |
| 40 | getMips16HelperFunctionStubNumber(ArgListTy &Args) const; |
| 41 | |
| 42 | const char *getMips16HelperFunction |
| 43 | (Type* RetTy, ArgListTy &Args, bool &needHelper) const; |
| 44 | |
| 45 | virtual void |
| 46 | getOpndList(SmallVectorImpl<SDValue> &Ops, |
| 47 | std::deque< std::pair<unsigned, SDValue> > &RegsToPass, |
| 48 | bool IsPICCall, bool GlobalOrExternal, bool InternalLinkage, |
| 49 | CallLoweringInfo &CLI, SDValue Callee, SDValue Chain) const; |
| 50 | |
| 51 | MachineBasicBlock *emitSel16(unsigned Opc, MachineInstr *MI, |
| 52 | MachineBasicBlock *BB) const; |
| 53 | |
| 54 | MachineBasicBlock *emitSeliT16(unsigned Opc1, unsigned Opc2, |
| 55 | MachineInstr *MI, |
| 56 | MachineBasicBlock *BB) const; |
| 57 | |
| 58 | MachineBasicBlock *emitSelT16(unsigned Opc1, unsigned Opc2, |
| 59 | MachineInstr *MI, |
| 60 | MachineBasicBlock *BB) const; |
| 61 | |
| 62 | MachineBasicBlock *emitFEXT_T8I816_ins(unsigned BtOpc, unsigned CmpOpc, |
| 63 | MachineInstr *MI, |
| 64 | MachineBasicBlock *BB) const; |
| 65 | |
| 66 | MachineBasicBlock *emitFEXT_T8I8I16_ins( |
| 67 | unsigned BtOpc, unsigned CmpiOpc, unsigned CmpiXOpc, |
| 68 | MachineInstr *MI, MachineBasicBlock *BB) const; |
| 69 | |
| 70 | MachineBasicBlock *emitFEXT_CCRX16_ins( |
| 71 | unsigned SltOpc, |
| 72 | MachineInstr *MI, MachineBasicBlock *BB) const; |
| 73 | |
| 74 | MachineBasicBlock *emitFEXT_CCRXI16_ins( |
| 75 | unsigned SltiOpc, unsigned SltiXOpc, |
| 76 | MachineInstr *MI, MachineBasicBlock *BB )const; |
| 77 | }; |
| 78 | } |
| 79 | |
| 80 | #endif // Mips16ISELLOWERING_H |