15ffd83dbSDimitry Andric //===---- RISCVISelDAGToDAG.h - A dag to dag inst selector for RISCV ------===// 25ffd83dbSDimitry Andric // 35ffd83dbSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 45ffd83dbSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 55ffd83dbSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 65ffd83dbSDimitry Andric // 75ffd83dbSDimitry Andric //===----------------------------------------------------------------------===// 85ffd83dbSDimitry Andric // 95ffd83dbSDimitry Andric // This file defines an instruction selector for the RISCV target. 105ffd83dbSDimitry Andric // 115ffd83dbSDimitry Andric //===----------------------------------------------------------------------===// 125ffd83dbSDimitry Andric 135ffd83dbSDimitry Andric #ifndef LLVM_LIB_TARGET_RISCV_RISCVISELDAGTODAG_H 145ffd83dbSDimitry Andric #define LLVM_LIB_TARGET_RISCV_RISCVISELDAGTODAG_H 155ffd83dbSDimitry Andric 165ffd83dbSDimitry Andric #include "RISCV.h" 175ffd83dbSDimitry Andric #include "RISCVTargetMachine.h" 185ffd83dbSDimitry Andric #include "llvm/CodeGen/SelectionDAGISel.h" 195ffd83dbSDimitry Andric 205ffd83dbSDimitry Andric // RISCV-specific code to select RISCV machine instructions for 215ffd83dbSDimitry Andric // SelectionDAG operations. 225ffd83dbSDimitry Andric namespace llvm { 235ffd83dbSDimitry Andric class RISCVDAGToDAGISel : public SelectionDAGISel { 245ffd83dbSDimitry Andric const RISCVSubtarget *Subtarget = nullptr; 255ffd83dbSDimitry Andric 265ffd83dbSDimitry Andric public: 275ffd83dbSDimitry Andric explicit RISCVDAGToDAGISel(RISCVTargetMachine &TargetMachine) 285ffd83dbSDimitry Andric : SelectionDAGISel(TargetMachine) {} 295ffd83dbSDimitry Andric 305ffd83dbSDimitry Andric StringRef getPassName() const override { 315ffd83dbSDimitry Andric return "RISCV DAG->DAG Pattern Instruction Selection"; 325ffd83dbSDimitry Andric } 335ffd83dbSDimitry Andric 345ffd83dbSDimitry Andric bool runOnMachineFunction(MachineFunction &MF) override { 355ffd83dbSDimitry Andric Subtarget = &MF.getSubtarget<RISCVSubtarget>(); 365ffd83dbSDimitry Andric return SelectionDAGISel::runOnMachineFunction(MF); 375ffd83dbSDimitry Andric } 385ffd83dbSDimitry Andric 395ffd83dbSDimitry Andric void PostprocessISelDAG() override; 405ffd83dbSDimitry Andric 415ffd83dbSDimitry Andric void Select(SDNode *Node) override; 425ffd83dbSDimitry Andric 435ffd83dbSDimitry Andric bool SelectInlineAsmMemoryOperand(const SDValue &Op, unsigned ConstraintID, 445ffd83dbSDimitry Andric std::vector<SDValue> &OutOps) override; 455ffd83dbSDimitry Andric 465ffd83dbSDimitry Andric bool SelectAddrFI(SDValue Addr, SDValue &Base); 475ffd83dbSDimitry Andric 48*e8d8bef9SDimitry Andric bool MatchSRLIW(SDNode *N) const; 49*e8d8bef9SDimitry Andric bool MatchSLOI(SDNode *N) const; 50*e8d8bef9SDimitry Andric bool MatchSROI(SDNode *N) const; 51*e8d8bef9SDimitry Andric bool MatchSROIW(SDNode *N) const; 52*e8d8bef9SDimitry Andric bool MatchSLLIUW(SDNode *N) const; 53*e8d8bef9SDimitry Andric 54*e8d8bef9SDimitry Andric bool selectVSplat(SDValue N, SDValue &SplatVal); 55*e8d8bef9SDimitry Andric bool selectVSplatSimm5(SDValue N, SDValue &SplatVal); 56*e8d8bef9SDimitry Andric bool selectVSplatUimm5(SDValue N, SDValue &SplatVal); 57*e8d8bef9SDimitry Andric 58*e8d8bef9SDimitry Andric void selectVLSEG(SDNode *Node, unsigned IntNo, bool IsStrided); 59*e8d8bef9SDimitry Andric void selectVLSEGMask(SDNode *Node, unsigned IntNo, bool IsStrided); 60*e8d8bef9SDimitry Andric void selectVLSEGFF(SDNode *Node); 61*e8d8bef9SDimitry Andric void selectVLSEGFFMask(SDNode *Node); 62*e8d8bef9SDimitry Andric void selectVLXSEG(SDNode *Node, unsigned IntNo); 63*e8d8bef9SDimitry Andric void selectVLXSEGMask(SDNode *Node, unsigned IntNo); 64*e8d8bef9SDimitry Andric void selectVSSEG(SDNode *Node, unsigned IntNo, bool IsStrided); 65*e8d8bef9SDimitry Andric void selectVSSEGMask(SDNode *Node, unsigned IntNo, bool IsStrided); 66*e8d8bef9SDimitry Andric void selectVSXSEG(SDNode *Node, unsigned IntNo); 67*e8d8bef9SDimitry Andric void selectVSXSEGMask(SDNode *Node, unsigned IntNo); 68979e22ffSDimitry Andric 695ffd83dbSDimitry Andric // Include the pieces autogenerated from the target description. 705ffd83dbSDimitry Andric #include "RISCVGenDAGISel.inc" 715ffd83dbSDimitry Andric 725ffd83dbSDimitry Andric private: 735ffd83dbSDimitry Andric void doPeepholeLoadStoreADDI(); 745ffd83dbSDimitry Andric }; 755ffd83dbSDimitry Andric } 765ffd83dbSDimitry Andric 775ffd83dbSDimitry Andric #endif 78