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 MachineBasicBlock *
30 EmitInstrWithCustomInserter(MachineInstr *MI, MachineBasicBlock *MBB) const;
32 virtual const TargetRegisterClass *getRepRegClassFor(MVT VT) const {
33 if (VT == MVT::Untyped)
34 return Subtarget->hasDSP() ? &Mips::ACRegsDSPRegClass :
35 &Mips::ACRegsRegClass;
37 return TargetLowering::getRepRegClassFor(VT);
42 isEligibleForTailCallOptimization(const MipsCC &MipsCCInfo,
43 unsigned NextStackOffset,
44 const MipsFunctionInfo& FI) const;
47 getOpndList(SmallVectorImpl<SDValue> &Ops,
48 std::deque< std::pair<unsigned, SDValue> > &RegsToPass,
49 bool IsPICCall, bool GlobalOrExternal, bool InternalLinkage,
50 CallLoweringInfo &CLI, SDValue Callee, SDValue Chain) const;
52 SDValue lowerMulDiv(SDValue Op, unsigned NewOpc, bool HasLo, bool HasHi,
53 SelectionDAG &DAG) const;
55 MachineBasicBlock *emitBPOSGE32(MachineInstr *MI,
56 MachineBasicBlock *BB) const;
60 #endif // MipsSEISELLOWERING_H