blob: 48a178bfeb95f9590ee1021c2456329b0edbbb7c [file] [log] [blame]
//=- LoongArchISelDAGToDAG.h - A dag to dag inst selector for LoongArch ---===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// This file defines an instruction selector for the LoongArch target.
#include "LoongArch.h"
#include "LoongArchTargetMachine.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
// LoongArch-specific code to select LoongArch machine instructions for
// SelectionDAG operations.
namespace llvm {
class LoongArchDAGToDAGISel : public SelectionDAGISel {
const LoongArchSubtarget *Subtarget = nullptr;
static char ID;
LoongArchDAGToDAGISel() = delete;
explicit LoongArchDAGToDAGISel(LoongArchTargetMachine &TM)
: SelectionDAGISel(ID, TM) {}
bool runOnMachineFunction(MachineFunction &MF) override {
Subtarget = &MF.getSubtarget<LoongArchSubtarget>();
return SelectionDAGISel::runOnMachineFunction(MF);
void Select(SDNode *Node) override;
bool SelectInlineAsmMemoryOperand(const SDValue &Op,
InlineAsm::ConstraintCode ConstraintID,
std::vector<SDValue> &OutOps) override;
bool SelectBaseAddr(SDValue Addr, SDValue &Base);
bool SelectAddrConstant(SDValue Addr, SDValue &Base, SDValue &Offset);
bool selectNonFIBaseAddr(SDValue Addr, SDValue &Base);
bool selectShiftMask(SDValue N, unsigned ShiftWidth, SDValue &ShAmt);
bool selectShiftMaskGRLen(SDValue N, SDValue &ShAmt) {
return selectShiftMask(N, Subtarget->getGRLen(), ShAmt);
bool selectShiftMask32(SDValue N, SDValue &ShAmt) {
return selectShiftMask(N, 32, ShAmt);
bool selectSExti32(SDValue N, SDValue &Val);
bool selectZExti32(SDValue N, SDValue &Val);
bool selectVSplat(SDNode *N, APInt &Imm, unsigned MinSizeInBits) const;
template <unsigned ImmSize, bool IsSigned = false>
bool selectVSplatImm(SDValue N, SDValue &SplatVal);
bool selectVSplatUimmInvPow2(SDValue N, SDValue &SplatImm) const;
bool selectVSplatUimmPow2(SDValue N, SDValue &SplatImm) const;
// Include the pieces autogenerated from the target description.
#include ""
} // end namespace llvm