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 | |
16 | #include "llvm/CodeGen/GlobalISel/LegalizerHelper.h" |
17 | #include "llvm/CodeGen/GlobalISel/LegalizerInfo.h" |
18 | #include "llvm/CodeGen/Register.h" |
19 | |
20 | namespace llvm { |
21 | |
22 | class GISelChangeObserver; |
23 | class MachineIRBuilder; |
24 | class RISCVSubtarget; |
25 | |
26 | class RISCVLegalizerInfo : public LegalizerInfo { |
27 | const RISCVSubtarget &STI; |
28 | const unsigned XLen; |
29 | const LLT sXLen; |
30 | |
31 | public: |
32 | RISCVLegalizerInfo(const RISCVSubtarget &ST); |
33 | |
34 | bool legalizeCustom(LegalizerHelper &Helper, MachineInstr &MI, |
35 | LostDebugLocObserver &LocObserver) const override; |
36 | |
37 | bool legalizeIntrinsic(LegalizerHelper &Helper, |
38 | MachineInstr &MI) const override; |
39 | |
40 | private: |
41 | bool shouldBeInConstantPool(const APInt &APImm, bool ShouldOptForSize) const; |
42 | bool legalizeShlAshrLshr(MachineInstr &MI, MachineIRBuilder &MIRBuilder, |
43 | GISelChangeObserver &Observer) const; |
44 | |
45 | bool legalizeBRJT(MachineInstr &MI, MachineIRBuilder &MIRBuilder) const; |
46 | bool legalizeVAStart(MachineInstr &MI, MachineIRBuilder &MIRBuilder) const; |
47 | bool legalizeVScale(MachineInstr &MI, MachineIRBuilder &MIB) const; |
48 | bool legalizeExt(MachineInstr &MI, MachineIRBuilder &MIRBuilder) const; |
49 | bool legalizeSplatVector(MachineInstr &MI, MachineIRBuilder &MIB) const; |
50 | bool (MachineInstr &MI, MachineIRBuilder &MIB) const; |
51 | bool legalizeInsertSubvector(MachineInstr &MI, LegalizerHelper &Helper, |
52 | MachineIRBuilder &MIB) const; |
53 | bool legalizeLoadStore(MachineInstr &MI, LegalizerHelper &Helper, |
54 | MachineIRBuilder &MIB) const; |
55 | }; |
56 | } // end namespace llvm |
57 | #endif |
58 | |