LLVM 19.0.0git
RISCVLegalizerInfo.h
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1//===-- RISCVLegalizerInfo.h ------------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8/// \file
9/// This file declares the targeting of the Machinelegalizer class for RISC-V.
10/// \todo This should be generated by TableGen.
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_RISCV_RISCVMACHINELEGALIZER_H
14#define LLVM_LIB_TARGET_RISCV_RISCVMACHINELEGALIZER_H
15
18
19namespace llvm {
20
21class GISelChangeObserver;
22class MachineIRBuilder;
23class RISCVSubtarget;
24
26 const RISCVSubtarget &STI;
27 const unsigned XLen;
28 const LLT sXLen;
29
30public:
32
34 LostDebugLocObserver &LocObserver) const override;
35
37 MachineInstr &MI) const override;
38
39private:
40 bool shouldBeInConstantPool(APInt APImm, bool ShouldOptForSize) const;
41 bool legalizeShlAshrLshr(MachineInstr &MI, MachineIRBuilder &MIRBuilder,
42 GISelChangeObserver &Observer) const;
43
44 bool legalizeVAStart(MachineInstr &MI, MachineIRBuilder &MIRBuilder) const;
45};
46} // end namespace llvm
47#endif
IRTranslator LLVM IR MI
Interface for Targets to specify which operations they can successfully select and how the others sho...
Class for arbitrary precision integers.
Definition: APInt.h:76
Abstract class that contains various methods for clients to notify about changes.
Helper class to build MachineInstr.
Representation of each machine instruction.
Definition: MachineInstr.h:68
bool legalizeCustom(LegalizerHelper &Helper, MachineInstr &MI, LostDebugLocObserver &LocObserver) const override
Called for instructions with the Custom LegalizationAction.
bool legalizeIntrinsic(LegalizerHelper &Helper, MachineInstr &MI) const override
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18