1 | //===-- TargetParser - Parser for target features ---------------*- C++ -*-===// |
---|---|
2 | // |
3 | // The LLVM Compiler Infrastructure |
4 | // |
5 | // This file is distributed under the University of Illinois Open Source |
6 | // License. See LICENSE.TXT for details. |
7 | // |
8 | //===----------------------------------------------------------------------===// |
9 | // |
10 | // This file implements a target parser to recognise CSKY hardware features |
11 | // such as CPU/ARCH names. |
12 | // |
13 | //===----------------------------------------------------------------------===// |
14 | |
15 | #include "llvm/TargetParser/CSKYTargetParser.h" |
16 | #include "llvm/ADT/SmallVector.h" |
17 | #include "llvm/ADT/StringSwitch.h" |
18 | |
19 | using namespace llvm; |
20 | |
21 | bool CSKY::getFPUFeatures(CSKYFPUKind CSKYFPUKind, |
22 | std::vector<StringRef> &Features) { |
23 | |
24 | if (CSKYFPUKind >= FK_LAST || CSKYFPUKind == FK_INVALID) |
25 | return false; |
26 | |
27 | switch (CSKYFPUKind) { |
28 | case FK_AUTO: |
29 | Features.push_back(x: "+fpuv2_sf"); |
30 | Features.push_back(x: "+fpuv2_df"); |
31 | Features.push_back(x: "+fdivdu"); |
32 | break; |
33 | case FK_FPV2: |
34 | Features.push_back(x: "+fpuv2_sf"); |
35 | Features.push_back(x: "+fpuv2_df"); |
36 | break; |
37 | case FK_FPV2_DIVD: |
38 | Features.push_back(x: "+fpuv2_sf"); |
39 | Features.push_back(x: "+fpuv2_df"); |
40 | Features.push_back(x: "+fdivdu"); |
41 | break; |
42 | case FK_FPV2_SF: |
43 | Features.push_back(x: "+fpuv2_sf"); |
44 | break; |
45 | case FK_FPV3: |
46 | Features.push_back(x: "+fpuv3_hf"); |
47 | Features.push_back(x: "+fpuv3_hi"); |
48 | Features.push_back(x: "+fpuv3_sf"); |
49 | Features.push_back(x: "+fpuv3_df"); |
50 | break; |
51 | case FK_FPV3_HF: |
52 | Features.push_back(x: "+fpuv3_hf"); |
53 | Features.push_back(x: "+fpuv3_hi"); |
54 | break; |
55 | case FK_FPV3_HSF: |
56 | Features.push_back(x: "+fpuv3_hf"); |
57 | Features.push_back(x: "+fpuv3_hi"); |
58 | Features.push_back(x: "+fpuv3_sf"); |
59 | break; |
60 | case FK_FPV3_SDF: |
61 | Features.push_back(x: "+fpuv3_sf"); |
62 | Features.push_back(x: "+fpuv3_df"); |
63 | break; |
64 | default: |
65 | llvm_unreachable("Unknown FPU Kind"); |
66 | return false; |
67 | } |
68 | |
69 | return true; |
70 | } |
71 | |
72 | // ======================================================= // |
73 | // Information by ID |
74 | // ======================================================= // |
75 | |
76 | StringRef CSKY::getArchName(ArchKind AK) { |
77 | return ARCHNames[static_cast<unsigned>(AK)].getName(); |
78 | } |
79 | |
80 | // The default cpu's name is same as arch name. |
81 | StringRef CSKY::getDefaultCPU(StringRef Arch) { |
82 | ArchKind AK = parseArch(Arch); |
83 | if (AK == CSKY::ArchKind::INVALID) |
84 | return StringRef(); |
85 | |
86 | return Arch; |
87 | } |
88 | |
89 | // ======================================================= // |
90 | // Parsers |
91 | // ======================================================= // |
92 | CSKY::ArchKind CSKY::parseArch(StringRef Arch) { |
93 | for (const auto A : ARCHNames) { |
94 | if (A.getName() == Arch) |
95 | return A.ID; |
96 | } |
97 | |
98 | return CSKY::ArchKind::INVALID; |
99 | } |
100 | |
101 | CSKY::ArchKind CSKY::parseCPUArch(StringRef CPU) { |
102 | for (const auto C : CPUNames) { |
103 | if (CPU == C.getName()) |
104 | return C.ArchID; |
105 | } |
106 | |
107 | return CSKY::ArchKind::INVALID; |
108 | } |
109 | |
110 | uint64_t CSKY::parseArchExt(StringRef ArchExt) { |
111 | for (const auto &A : CSKYARCHExtNames) { |
112 | if (ArchExt == A.getName()) |
113 | return A.ID; |
114 | } |
115 | return AEK_INVALID; |
116 | } |
117 | |
118 | void CSKY::fillValidCPUArchList(SmallVectorImpl<StringRef> &Values) { |
119 | for (const CpuNames<CSKY::ArchKind> &Arch : CPUNames) { |
120 | if (Arch.ArchID != CSKY::ArchKind::INVALID) |
121 | Values.push_back(Elt: Arch.getName()); |
122 | } |
123 | } |
124 | |
125 | StringRef CSKY::getFPUName(unsigned FPUKind) { |
126 | if (FPUKind >= FK_LAST) |
127 | return StringRef(); |
128 | return FPUNames[FPUKind].getName(); |
129 | } |
130 | |
131 | CSKY::FPUVersion CSKY::getFPUVersion(unsigned FPUKind) { |
132 | if (FPUKind >= FK_LAST) |
133 | return FPUVersion::NONE; |
134 | return FPUNames[FPUKind].FPUVer; |
135 | } |
136 | |
137 | uint64_t CSKY::getDefaultExtensions(StringRef CPU) { |
138 | return StringSwitch<uint64_t>(CPU) |
139 | #define CSKY_CPU_NAME(NAME, ID, DEFAULT_EXT) \ |
140 | .Case(NAME, ARCHNames[static_cast<unsigned>(ArchKind::ID)].archBaseExt | \ |
141 | DEFAULT_EXT) |
142 | #include "llvm/TargetParser/CSKYTargetParser.def" |
143 | .Default(Value: CSKY::AEK_INVALID); |
144 | } |
145 | |
146 | StringRef CSKY::getArchExtName(uint64_t ArchExtKind) { |
147 | for (const auto &AE : CSKYARCHExtNames) |
148 | if (ArchExtKind == AE.ID) |
149 | return AE.getName(); |
150 | return StringRef(); |
151 | } |
152 | |
153 | static bool stripNegationPrefix(StringRef &Name) { |
154 | if (Name.starts_with(Prefix: "no")) { |
155 | Name = Name.substr(Start: 2); |
156 | return true; |
157 | } |
158 | return false; |
159 | } |
160 | |
161 | StringRef CSKY::getArchExtFeature(StringRef ArchExt) { |
162 | bool Negated = stripNegationPrefix(Name&: ArchExt); |
163 | for (const auto &AE : CSKYARCHExtNames) { |
164 | if (AE.Feature && ArchExt == AE.getName()) |
165 | return StringRef(Negated ? AE.NegFeature : AE.Feature); |
166 | } |
167 | |
168 | return StringRef(); |
169 | } |
170 | |
171 | bool CSKY::getExtensionFeatures(uint64_t Extensions, |
172 | std::vector<StringRef> &Features) { |
173 | if (Extensions == CSKY::AEK_INVALID) |
174 | return false; |
175 | |
176 | for (const auto &AE : CSKYARCHExtNames) { |
177 | if ((Extensions & AE.ID) == AE.ID && AE.Feature) |
178 | Features.push_back(x: AE.Feature); |
179 | } |
180 | |
181 | return true; |
182 | } |
183 |