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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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84
external/llvm/lib/Target/RISCV/RISCVISelLowering.h vendored
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//===-- RISCVISelLowering.h - RISCV 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.
//
//===----------------------------------------------------------------------===//
//
// This file defines the interfaces that RISCV uses to lower LLVM code into a
// selection DAG.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_RISCV_RISCVISELLOWERING_H
#define LLVM_LIB_TARGET_RISCV_RISCVISELLOWERING_H
#include "RISCV.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/TargetLowering.h"
namespace llvm {
class RISCVSubtarget;
namespace RISCVISD {
enum NodeType : unsigned {
FIRST_NUMBER = ISD::BUILTIN_OP_END,
RET_FLAG,
CALL,
SELECT_CC
};
}
class RISCVTargetLowering : public TargetLowering {
const RISCVSubtarget &Subtarget;
public:
explicit RISCVTargetLowering(const TargetMachine &TM,
const RISCVSubtarget &STI);
// Provide custom lowering hooks for some operations.
SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override;
// This method returns the name of a target specific DAG node.
const char *getTargetNodeName(unsigned Opcode) const override;
MachineBasicBlock *
EmitInstrWithCustomInserter(MachineInstr &MI,
MachineBasicBlock *BB) const override;
private:
void analyzeInputArgs(MachineFunction &MF, CCState &CCInfo,
const SmallVectorImpl<ISD::InputArg> &Ins,
bool IsRet) const;
void analyzeOutputArgs(MachineFunction &MF, CCState &CCInfo,
const SmallVectorImpl<ISD::OutputArg> &Outs,
bool IsRet) const;
// Lower incoming arguments, copy physregs into vregs
SDValue LowerFormalArguments(SDValue Chain, CallingConv::ID CallConv,
bool IsVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
const SDLoc &DL, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) const override;
bool CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF,
bool IsVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
LLVMContext &Context) const override;
SDValue LowerReturn(SDValue Chain, CallingConv::ID CallConv, bool IsVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<SDValue> &OutVals, const SDLoc &DL,
SelectionDAG &DAG) const override;
SDValue LowerCall(TargetLowering::CallLoweringInfo &CLI,
SmallVectorImpl<SDValue> &InVals) const override;
bool shouldConvertConstantLoadToIntImm(const APInt &Imm,
Type *Ty) const override {
return true;
}
SDValue lowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerExternalSymbol(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerSELECT(SDValue Op, SelectionDAG &DAG) const;
};
}
#endif