1 //===-- MipsSEISelLowering.h - MipsSE DAG Lowering Interface ----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Subclass of MipsTargetLowering specialized for mips32/64.
12 //===----------------------------------------------------------------------===//
14 #ifndef MipsSEISELLOWERING_H
15 #define MipsSEISELLOWERING_H
17 #include "MipsISelLowering.h"
18 #include "MipsRegisterInfo.h"
21 class MipsSETargetLowering : public MipsTargetLowering {
23 explicit MipsSETargetLowering(MipsTargetMachine &TM);
25 virtual bool allowsUnalignedMemoryAccesses(EVT VT, bool *Fast) const;
27 virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
29 virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
31 virtual MachineBasicBlock *
32 EmitInstrWithCustomInserter(MachineInstr *MI, MachineBasicBlock *MBB) const;
34 virtual bool isShuffleMaskLegal(const SmallVectorImpl<int> &Mask,
39 virtual const TargetRegisterClass *getRepRegClassFor(MVT VT) const {
40 if (VT == MVT::Untyped)
41 return Subtarget->hasDSP() ? &Mips::ACRegsDSPRegClass :
42 &Mips::ACRegsRegClass;
44 return TargetLowering::getRepRegClassFor(VT);
49 isEligibleForTailCallOptimization(const MipsCC &MipsCCInfo,
50 unsigned NextStackOffset,
51 const MipsFunctionInfo& FI) const;
54 getOpndList(SmallVectorImpl<SDValue> &Ops,
55 std::deque< std::pair<unsigned, SDValue> > &RegsToPass,
56 bool IsPICCall, bool GlobalOrExternal, bool InternalLinkage,
57 CallLoweringInfo &CLI, SDValue Callee, SDValue Chain) const;
59 SDValue lowerMulDiv(SDValue Op, unsigned NewOpc, bool HasLo, bool HasHi,
60 SelectionDAG &DAG) const;
62 SDValue lowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
63 SDValue lowerINTRINSIC_W_CHAIN(SDValue Op, SelectionDAG &DAG) const;
65 MachineBasicBlock *emitBPOSGE32(MachineInstr *MI,
66 MachineBasicBlock *BB) const;
70 #endif // MipsSEISELLOWERING_H