llvm-6502/lib/Target/Mips/MipsSEISelLowering.h
Daniel Sanders eaa221a23e Re-commit r221056 and others with fix, "[mips] Move F128 argument handling into MipsCCState as we did for returns. NFC."
sret arguments can never originate from an f128 argument so we detect
sret arguments and push false into OriginalArgWasF128.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221102 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-02 16:09:29 +00:00

118 lines
5.2 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 LLVM_LIB_TARGET_MIPS_MIPSSEISELLOWERING_H
#define LLVM_LIB_TARGET_MIPS_MIPSSEISELLOWERING_H
#include "MipsISelLowering.h"
#include "MipsRegisterInfo.h"
namespace llvm {
class MipsSETargetLowering : public MipsTargetLowering {
public:
explicit MipsSETargetLowering(const MipsTargetMachine &TM,
const MipsSubtarget &STI);
/// \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);
bool allowsMisalignedMemoryAccesses(EVT VT, unsigned AS = 0,
unsigned Align = 1,
bool *Fast = nullptr) const override;
SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override;
SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const override;
MachineBasicBlock *
EmitInstrWithCustomInserter(MachineInstr *MI,
MachineBasicBlock *MBB) const override;
bool isShuffleMaskLegal(const SmallVectorImpl<int> &Mask,
EVT VT) const override {
return false;
}
const TargetRegisterClass *getRepRegClassFor(MVT VT) const override;
private:
bool isEligibleForTailCallOptimization(
const CCState &CCInfo, unsigned NextStackOffset,
const MipsFunctionInfo &FI) const override;
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;
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 INSERT_([BHWD]|F[WD])_VIDX pseudo instruction
MachineBasicBlock *emitINSERT_DF_VIDX(MachineInstr *MI,
MachineBasicBlock *BB,
unsigned EltSizeInBytes,
bool IsFP) 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