1 //===-- LoongArchTargetParser - Parser for LoongArch features --*- 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 //
9 // This file implements a target parser to recognise LoongArch hardware features
10 // such as CPU/ARCH and extension names.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "llvm/TargetParser/LoongArchTargetParser.h"
15
16 using namespace llvm;
17 using namespace llvm::LoongArch;
18
19 const FeatureInfo AllFeatures[] = {
20 #define LOONGARCH_FEATURE(NAME, KIND) {NAME, KIND},
21 #include "llvm/TargetParser/LoongArchTargetParser.def"
22 };
23
24 const ArchInfo AllArchs[] = {
25 #define LOONGARCH_ARCH(NAME, KIND, FEATURES) \
26 {NAME, LoongArch::ArchKind::KIND, FEATURES},
27 #include "llvm/TargetParser/LoongArchTargetParser.def"
28 };
29
isValidArchName(StringRef Arch)30 bool LoongArch::isValidArchName(StringRef Arch) {
31 for (const auto A : AllArchs)
32 if (A.Name == Arch)
33 return true;
34 return false;
35 }
36
getArchFeatures(StringRef Arch,std::vector<StringRef> & Features)37 bool LoongArch::getArchFeatures(StringRef Arch,
38 std::vector<StringRef> &Features) {
39 for (const auto A : AllArchs) {
40 if (A.Name == Arch) {
41 for (const auto F : AllFeatures)
42 if ((A.Features & F.Kind) == F.Kind)
43 Features.push_back(F.Name);
44 return true;
45 }
46 }
47
48 if (Arch == "la64v1.0" || Arch == "la64v1.1") {
49 Features.push_back("+64bit");
50 Features.push_back("+d");
51 Features.push_back("+lsx");
52 Features.push_back("+ual");
53 if (Arch == "la64v1.1")
54 Features.push_back("+frecipe");
55 return true;
56 }
57
58 return false;
59 }
60
isValidCPUName(StringRef Name)61 bool LoongArch::isValidCPUName(StringRef Name) { return isValidArchName(Name); }
62
fillValidCPUList(SmallVectorImpl<StringRef> & Values)63 void LoongArch::fillValidCPUList(SmallVectorImpl<StringRef> &Values) {
64 for (const auto A : AllArchs)
65 Values.emplace_back(A.Name);
66 }
67
getDefaultArch(bool Is64Bit)68 StringRef LoongArch::getDefaultArch(bool Is64Bit) {
69 // TODO: use a real 32-bit arch name.
70 return Is64Bit ? "loongarch64" : "";
71 }
72