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https://github.com/c64scene-ar/llvm-6502.git
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207506 91177308-0d34-0410-b5e6-96231b3b80d8
117 lines
5.0 KiB
C++
117 lines
5.0 KiB
C++
//===-- MipsSEISelLowering.h - MipsSE DAG Lowering Interface ----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Subclass of MipsTargetLowering specialized for mips32/64.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MipsSEISELLOWERING_H
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#define MipsSEISELLOWERING_H
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#include "MipsISelLowering.h"
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#include "MipsRegisterInfo.h"
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namespace llvm {
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class MipsSETargetLowering : public MipsTargetLowering {
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public:
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explicit MipsSETargetLowering(MipsTargetMachine &TM);
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/// \brief Enable MSA support for the given integer type and Register
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/// class.
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void addMSAIntType(MVT::SimpleValueType Ty, const TargetRegisterClass *RC);
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/// \brief Enable MSA support for the given floating-point type and
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/// Register class.
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void addMSAFloatType(MVT::SimpleValueType Ty,
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const TargetRegisterClass *RC);
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bool allowsUnalignedMemoryAccesses(EVT VT, unsigned AS = 0,
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bool *Fast = nullptr) const override;
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SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override;
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SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const override;
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MachineBasicBlock *
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EmitInstrWithCustomInserter(MachineInstr *MI,
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MachineBasicBlock *MBB) const override;
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bool isShuffleMaskLegal(const SmallVectorImpl<int> &Mask,
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EVT VT) const override {
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return false;
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}
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const TargetRegisterClass *getRepRegClassFor(MVT VT) const override {
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if (VT == MVT::Untyped)
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return Subtarget->hasDSP() ? &Mips::ACC64DSPRegClass :
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&Mips::ACC64RegClass;
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return TargetLowering::getRepRegClassFor(VT);
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}
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private:
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bool isEligibleForTailCallOptimization(const MipsCC &MipsCCInfo,
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unsigned NextStackOffset,
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const MipsFunctionInfo& FI) const override;
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void
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getOpndList(SmallVectorImpl<SDValue> &Ops,
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std::deque< std::pair<unsigned, SDValue> > &RegsToPass,
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bool IsPICCall, bool GlobalOrExternal, bool InternalLinkage,
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CallLoweringInfo &CLI, SDValue Callee,
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SDValue Chain) const override;
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SDValue lowerLOAD(SDValue Op, SelectionDAG &DAG) const;
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SDValue lowerSTORE(SDValue Op, SelectionDAG &DAG) const;
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SDValue lowerMulDiv(SDValue Op, unsigned NewOpc, bool HasLo, bool HasHi,
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SelectionDAG &DAG) const;
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SDValue lowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
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SDValue lowerINTRINSIC_W_CHAIN(SDValue Op, SelectionDAG &DAG) const;
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SDValue lowerINTRINSIC_VOID(SDValue Op, SelectionDAG &DAG) const;
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SDValue lowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
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SDValue lowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const;
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/// \brief Lower VECTOR_SHUFFLE into one of a number of instructions
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/// depending on the indices in the shuffle.
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SDValue lowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const;
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MachineBasicBlock *emitBPOSGE32(MachineInstr *MI,
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MachineBasicBlock *BB) const;
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MachineBasicBlock *emitMSACBranchPseudo(MachineInstr *MI,
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MachineBasicBlock *BB,
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unsigned BranchOp) const;
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/// \brief Emit the COPY_FW pseudo instruction
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MachineBasicBlock *emitCOPY_FW(MachineInstr *MI,
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MachineBasicBlock *BB) const;
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/// \brief Emit the COPY_FD pseudo instruction
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MachineBasicBlock *emitCOPY_FD(MachineInstr *MI,
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MachineBasicBlock *BB) const;
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/// \brief Emit the INSERT_FW pseudo instruction
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MachineBasicBlock *emitINSERT_FW(MachineInstr *MI,
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MachineBasicBlock *BB) const;
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/// \brief Emit the INSERT_FD pseudo instruction
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MachineBasicBlock *emitINSERT_FD(MachineInstr *MI,
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MachineBasicBlock *BB) const;
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/// \brief Emit the FILL_FW pseudo instruction
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MachineBasicBlock *emitFILL_FW(MachineInstr *MI,
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MachineBasicBlock *BB) const;
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/// \brief Emit the FILL_FD pseudo instruction
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MachineBasicBlock *emitFILL_FD(MachineInstr *MI,
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MachineBasicBlock *BB) const;
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/// \brief Emit the FEXP2_W_1 pseudo instructions.
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MachineBasicBlock *emitFEXP2_W_1(MachineInstr *MI,
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MachineBasicBlock *BB) const;
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/// \brief Emit the FEXP2_D_1 pseudo instructions.
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MachineBasicBlock *emitFEXP2_D_1(MachineInstr *MI,
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MachineBasicBlock *BB) const;
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};
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}
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#endif // MipsSEISELLOWERING_H
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