llvm-6502/lib/Target/Mips/MipsSEISelLowering.h
2013-10-23 10:36:52 +00:00

115 lines
4.8 KiB
C++

//===-- MipsSEISelLowering.h - MipsSE DAG Lowering Interface ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Subclass of MipsTargetLowering specialized for mips32/64.
//
//===----------------------------------------------------------------------===//
#ifndef MipsSEISELLOWERING_H
#define MipsSEISELLOWERING_H
#include "MipsISelLowering.h"
#include "MipsRegisterInfo.h"
namespace llvm {
class MipsSETargetLowering : public MipsTargetLowering {
public:
explicit MipsSETargetLowering(MipsTargetMachine &TM);
/// \brief Enable MSA support for the given integer type and Register
/// class.
void addMSAIntType(MVT::SimpleValueType Ty, const TargetRegisterClass *RC);
/// \brief Enable MSA support for the given floating-point type and
/// Register class.
void addMSAFloatType(MVT::SimpleValueType Ty,
const TargetRegisterClass *RC);
virtual bool allowsUnalignedMemoryAccesses(EVT VT, bool *Fast) const;
virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
virtual MachineBasicBlock *
EmitInstrWithCustomInserter(MachineInstr *MI, MachineBasicBlock *MBB) const;
virtual bool isShuffleMaskLegal(const SmallVectorImpl<int> &Mask,
EVT VT) const {
return false;
}
virtual const TargetRegisterClass *getRepRegClassFor(MVT VT) const {
if (VT == MVT::Untyped)
return Subtarget->hasDSP() ? &Mips::ACC64DSPRegClass :
&Mips::ACC64RegClass;
return TargetLowering::getRepRegClassFor(VT);
}
private:
virtual bool
isEligibleForTailCallOptimization(const MipsCC &MipsCCInfo,
unsigned NextStackOffset,
const MipsFunctionInfo& FI) const;
virtual void
getOpndList(SmallVectorImpl<SDValue> &Ops,
std::deque< std::pair<unsigned, SDValue> > &RegsToPass,
bool IsPICCall, bool GlobalOrExternal, bool InternalLinkage,
CallLoweringInfo &CLI, SDValue Callee, SDValue Chain) const;
SDValue lowerLOAD(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerSTORE(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerMulDiv(SDValue Op, unsigned NewOpc, bool HasLo, bool HasHi,
SelectionDAG &DAG) const;
SDValue lowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerINTRINSIC_W_CHAIN(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerINTRINSIC_VOID(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const;
/// \brief Lower VECTOR_SHUFFLE into one of a number of instructions
/// depending on the indices in the shuffle.
SDValue lowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const;
MachineBasicBlock *emitBPOSGE32(MachineInstr *MI,
MachineBasicBlock *BB) const;
MachineBasicBlock *emitMSACBranchPseudo(MachineInstr *MI,
MachineBasicBlock *BB,
unsigned BranchOp) const;
/// \brief Emit the COPY_FW pseudo instruction
MachineBasicBlock *emitCOPY_FW(MachineInstr *MI,
MachineBasicBlock *BB) const;
/// \brief Emit the COPY_FD pseudo instruction
MachineBasicBlock *emitCOPY_FD(MachineInstr *MI,
MachineBasicBlock *BB) const;
/// \brief Emit the INSERT_FW pseudo instruction
MachineBasicBlock *emitINSERT_FW(MachineInstr *MI,
MachineBasicBlock *BB) const;
/// \brief Emit the INSERT_FD pseudo instruction
MachineBasicBlock *emitINSERT_FD(MachineInstr *MI,
MachineBasicBlock *BB) const;
/// \brief Emit the FILL_FW pseudo instruction
MachineBasicBlock *emitFILL_FW(MachineInstr *MI,
MachineBasicBlock *BB) const;
/// \brief Emit the FILL_FD pseudo instruction
MachineBasicBlock *emitFILL_FD(MachineInstr *MI,
MachineBasicBlock *BB) const;
/// \brief Emit the FEXP2_W_1 pseudo instructions.
MachineBasicBlock *emitFEXP2_W_1(MachineInstr *MI,
MachineBasicBlock *BB) const;
/// \brief Emit the FEXP2_D_1 pseudo instructions.
MachineBasicBlock *emitFEXP2_D_1(MachineInstr *MI,
MachineBasicBlock *BB) const;
};
}
#endif // MipsSEISELLOWERING_H