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llvm-mirror/lib/Target/VE/VEISelLowering.h
Kazushi (Jam) Marukawa 4d3808fe5f [VE] i<N> and fp32/64 arguments, return values and constants
Summary:
Support for i<N> and fp32/64 arguments (in register), return values
and constants along with tests.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D73092
2020-01-22 09:17:44 +01:00

69 lines
2.5 KiB
C++

//===-- VEISelLowering.h - VE DAG Lowering Interface ------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the interfaces that VE uses to lower LLVM code into a
// selection DAG.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_VE_VEISELLOWERING_H
#define LLVM_LIB_TARGET_VE_VEISELLOWERING_H
#include "VE.h"
#include "llvm/CodeGen/TargetLowering.h"
namespace llvm {
class VESubtarget;
namespace VEISD {
enum NodeType : unsigned {
FIRST_NUMBER = ISD::BUILTIN_OP_END,
RET_FLAG, // Return with a flag operand.
};
}
class VETargetLowering : public TargetLowering {
const VESubtarget *Subtarget;
public:
VETargetLowering(const TargetMachine &TM, const VESubtarget &STI);
const char *getTargetNodeName(unsigned Opcode) const override;
MVT getScalarShiftAmountTy(const DataLayout &, EVT) const override {
return MVT::i32;
}
Register getRegisterByName(const char *RegName, LLT VT,
const MachineFunction &MF) const override;
/// getSetCCResultType - Return the ISD::SETCC ValueType
EVT getSetCCResultType(const DataLayout &DL, LLVMContext &Context,
EVT VT) const override;
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> &ArgsFlags,
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;
bool isFPImmLegal(const APFloat &Imm, EVT VT,
bool ForCodeSize) const override;
};
} // namespace llvm
#endif // VE_ISELLOWERING_H