1 //===-- RISCVLegalizerInfo.cpp ----------------------------------*- 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 implements the targeting of the Machinelegalizer class for RISC-V.
10 /// \todo This should be generated by TableGen.
11 //===----------------------------------------------------------------------===//
12 
13 #include "RISCVLegalizerInfo.h"
14 #include "RISCVSubtarget.h"
15 #include "llvm/CodeGen/TargetOpcodes.h"
16 #include "llvm/CodeGen/ValueTypes.h"
17 #include "llvm/IR/DerivedTypes.h"
18 #include "llvm/IR/Type.h"
19 
20 using namespace llvm;
21 
22 RISCVLegalizerInfo::RISCVLegalizerInfo(const RISCVSubtarget &ST) {
23   const unsigned XLen = ST.getXLen();
24   const LLT XLenLLT = LLT::scalar(XLen);
25 
26   using namespace TargetOpcode;
27 
28   getActionDefinitionsBuilder({G_ADD, G_SUB, G_AND, G_OR, G_XOR})
29       .legalFor({XLenLLT})
30       .clampScalar(0, XLenLLT, XLenLLT);
31 
32   getLegacyLegalizerInfo().computeTables();
33 }
34