1 //===-- TargetParser - Parser for target 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 hardware features such as
10 // FPU/CPU/ARCH names as well as specific support such as HDIV, etc.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "llvm/Support/ARMBuildAttributes.h"
15 #include "llvm/Support/TargetParser.h"
16 #include "llvm/ADT/ArrayRef.h"
17 #include "llvm/ADT/StringSwitch.h"
18 #include "llvm/ADT/Twine.h"
19
20 using namespace llvm;
21 using namespace AMDGPU;
22
23 namespace {
24
25 struct GPUInfo {
26 StringLiteral Name;
27 StringLiteral CanonicalName;
28 AMDGPU::GPUKind Kind;
29 unsigned Features;
30 };
31
32 constexpr GPUInfo R600GPUs[26] = {
33 // Name Canonical Kind Features
34 // Name
35 {{"r600"}, {"r600"}, GK_R600, FEATURE_NONE },
36 {{"rv630"}, {"r600"}, GK_R600, FEATURE_NONE },
37 {{"rv635"}, {"r600"}, GK_R600, FEATURE_NONE },
38 {{"r630"}, {"r630"}, GK_R630, FEATURE_NONE },
39 {{"rs780"}, {"rs880"}, GK_RS880, FEATURE_NONE },
40 {{"rs880"}, {"rs880"}, GK_RS880, FEATURE_NONE },
41 {{"rv610"}, {"rs880"}, GK_RS880, FEATURE_NONE },
42 {{"rv620"}, {"rs880"}, GK_RS880, FEATURE_NONE },
43 {{"rv670"}, {"rv670"}, GK_RV670, FEATURE_NONE },
44 {{"rv710"}, {"rv710"}, GK_RV710, FEATURE_NONE },
45 {{"rv730"}, {"rv730"}, GK_RV730, FEATURE_NONE },
46 {{"rv740"}, {"rv770"}, GK_RV770, FEATURE_NONE },
47 {{"rv770"}, {"rv770"}, GK_RV770, FEATURE_NONE },
48 {{"cedar"}, {"cedar"}, GK_CEDAR, FEATURE_NONE },
49 {{"palm"}, {"cedar"}, GK_CEDAR, FEATURE_NONE },
50 {{"cypress"}, {"cypress"}, GK_CYPRESS, FEATURE_FMA },
51 {{"hemlock"}, {"cypress"}, GK_CYPRESS, FEATURE_FMA },
52 {{"juniper"}, {"juniper"}, GK_JUNIPER, FEATURE_NONE },
53 {{"redwood"}, {"redwood"}, GK_REDWOOD, FEATURE_NONE },
54 {{"sumo"}, {"sumo"}, GK_SUMO, FEATURE_NONE },
55 {{"sumo2"}, {"sumo"}, GK_SUMO, FEATURE_NONE },
56 {{"barts"}, {"barts"}, GK_BARTS, FEATURE_NONE },
57 {{"caicos"}, {"caicos"}, GK_CAICOS, FEATURE_NONE },
58 {{"aruba"}, {"cayman"}, GK_CAYMAN, FEATURE_FMA },
59 {{"cayman"}, {"cayman"}, GK_CAYMAN, FEATURE_FMA },
60 {{"turks"}, {"turks"}, GK_TURKS, FEATURE_NONE }
61 };
62
63 // This table should be sorted by the value of GPUKind
64 // Don't bother listing the implicitly true features
65 constexpr GPUInfo AMDGCNGPUs[37] = {
66 // Name Canonical Kind Features
67 // Name
68 {{"gfx600"}, {"gfx600"}, GK_GFX600, FEATURE_FAST_FMA_F32},
69 {{"tahiti"}, {"gfx600"}, GK_GFX600, FEATURE_FAST_FMA_F32},
70 {{"gfx601"}, {"gfx601"}, GK_GFX601, FEATURE_NONE},
71 {{"hainan"}, {"gfx601"}, GK_GFX601, FEATURE_NONE},
72 {{"oland"}, {"gfx601"}, GK_GFX601, FEATURE_NONE},
73 {{"pitcairn"}, {"gfx601"}, GK_GFX601, FEATURE_NONE},
74 {{"verde"}, {"gfx601"}, GK_GFX601, FEATURE_NONE},
75 {{"gfx700"}, {"gfx700"}, GK_GFX700, FEATURE_NONE},
76 {{"kaveri"}, {"gfx700"}, GK_GFX700, FEATURE_NONE},
77 {{"gfx701"}, {"gfx701"}, GK_GFX701, FEATURE_FAST_FMA_F32},
78 {{"hawaii"}, {"gfx701"}, GK_GFX701, FEATURE_FAST_FMA_F32},
79 {{"gfx702"}, {"gfx702"}, GK_GFX702, FEATURE_FAST_FMA_F32},
80 {{"gfx703"}, {"gfx703"}, GK_GFX703, FEATURE_NONE},
81 {{"kabini"}, {"gfx703"}, GK_GFX703, FEATURE_NONE},
82 {{"mullins"}, {"gfx703"}, GK_GFX703, FEATURE_NONE},
83 {{"gfx704"}, {"gfx704"}, GK_GFX704, FEATURE_NONE},
84 {{"bonaire"}, {"gfx704"}, GK_GFX704, FEATURE_NONE},
85 {{"gfx801"}, {"gfx801"}, GK_GFX801, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
86 {{"carrizo"}, {"gfx801"}, GK_GFX801, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
87 {{"gfx802"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32},
88 {{"iceland"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32},
89 {{"tonga"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32},
90 {{"gfx803"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32},
91 {{"fiji"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32},
92 {{"polaris10"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32},
93 {{"polaris11"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32},
94 {{"gfx810"}, {"gfx810"}, GK_GFX810, FEATURE_FAST_DENORMAL_F32},
95 {{"stoney"}, {"gfx810"}, GK_GFX810, FEATURE_FAST_DENORMAL_F32},
96 {{"gfx900"}, {"gfx900"}, GK_GFX900, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
97 {{"gfx902"}, {"gfx902"}, GK_GFX902, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
98 {{"gfx904"}, {"gfx904"}, GK_GFX904, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
99 {{"gfx906"}, {"gfx906"}, GK_GFX906, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
100 {{"gfx908"}, {"gfx908"}, GK_GFX908, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
101 {{"gfx909"}, {"gfx909"}, GK_GFX909, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
102 {{"gfx1010"}, {"gfx1010"}, GK_GFX1010, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
103 {{"gfx1011"}, {"gfx1011"}, GK_GFX1011, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
104 {{"gfx1012"}, {"gfx1012"}, GK_GFX1012, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
105 };
106
getArchEntry(AMDGPU::GPUKind AK,ArrayRef<GPUInfo> Table)107 const GPUInfo *getArchEntry(AMDGPU::GPUKind AK, ArrayRef<GPUInfo> Table) {
108 GPUInfo Search = { {""}, {""}, AK, AMDGPU::FEATURE_NONE };
109
110 auto I = std::lower_bound(Table.begin(), Table.end(), Search,
111 [](const GPUInfo &A, const GPUInfo &B) {
112 return A.Kind < B.Kind;
113 });
114
115 if (I == Table.end())
116 return nullptr;
117 return I;
118 }
119
120 } // namespace
121
getArchNameAMDGCN(GPUKind AK)122 StringRef llvm::AMDGPU::getArchNameAMDGCN(GPUKind AK) {
123 if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
124 return Entry->CanonicalName;
125 return "";
126 }
127
getArchNameR600(GPUKind AK)128 StringRef llvm::AMDGPU::getArchNameR600(GPUKind AK) {
129 if (const auto *Entry = getArchEntry(AK, R600GPUs))
130 return Entry->CanonicalName;
131 return "";
132 }
133
parseArchAMDGCN(StringRef CPU)134 AMDGPU::GPUKind llvm::AMDGPU::parseArchAMDGCN(StringRef CPU) {
135 for (const auto &C : AMDGCNGPUs) {
136 if (CPU == C.Name)
137 return C.Kind;
138 }
139
140 return AMDGPU::GPUKind::GK_NONE;
141 }
142
parseArchR600(StringRef CPU)143 AMDGPU::GPUKind llvm::AMDGPU::parseArchR600(StringRef CPU) {
144 for (const auto &C : R600GPUs) {
145 if (CPU == C.Name)
146 return C.Kind;
147 }
148
149 return AMDGPU::GPUKind::GK_NONE;
150 }
151
getArchAttrAMDGCN(GPUKind AK)152 unsigned AMDGPU::getArchAttrAMDGCN(GPUKind AK) {
153 if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
154 return Entry->Features;
155 return FEATURE_NONE;
156 }
157
getArchAttrR600(GPUKind AK)158 unsigned AMDGPU::getArchAttrR600(GPUKind AK) {
159 if (const auto *Entry = getArchEntry(AK, R600GPUs))
160 return Entry->Features;
161 return FEATURE_NONE;
162 }
163
fillValidArchListAMDGCN(SmallVectorImpl<StringRef> & Values)164 void AMDGPU::fillValidArchListAMDGCN(SmallVectorImpl<StringRef> &Values) {
165 // XXX: Should this only report unique canonical names?
166 for (const auto &C : AMDGCNGPUs)
167 Values.push_back(C.Name);
168 }
169
fillValidArchListR600(SmallVectorImpl<StringRef> & Values)170 void AMDGPU::fillValidArchListR600(SmallVectorImpl<StringRef> &Values) {
171 for (const auto &C : R600GPUs)
172 Values.push_back(C.Name);
173 }
174
getIsaVersion(StringRef GPU)175 AMDGPU::IsaVersion AMDGPU::getIsaVersion(StringRef GPU) {
176 AMDGPU::GPUKind AK = parseArchAMDGCN(GPU);
177 if (AK == AMDGPU::GPUKind::GK_NONE) {
178 if (GPU == "generic-hsa")
179 return {7, 0, 0};
180 if (GPU == "generic")
181 return {6, 0, 0};
182 return {0, 0, 0};
183 }
184
185 switch (AK) {
186 case GK_GFX600: return {6, 0, 0};
187 case GK_GFX601: return {6, 0, 1};
188 case GK_GFX700: return {7, 0, 0};
189 case GK_GFX701: return {7, 0, 1};
190 case GK_GFX702: return {7, 0, 2};
191 case GK_GFX703: return {7, 0, 3};
192 case GK_GFX704: return {7, 0, 4};
193 case GK_GFX801: return {8, 0, 1};
194 case GK_GFX802: return {8, 0, 2};
195 case GK_GFX803: return {8, 0, 3};
196 case GK_GFX810: return {8, 1, 0};
197 case GK_GFX900: return {9, 0, 0};
198 case GK_GFX902: return {9, 0, 2};
199 case GK_GFX904: return {9, 0, 4};
200 case GK_GFX906: return {9, 0, 6};
201 case GK_GFX908: return {9, 0, 8};
202 case GK_GFX909: return {9, 0, 9};
203 case GK_GFX1010: return {10, 1, 0};
204 case GK_GFX1011: return {10, 1, 1};
205 case GK_GFX1012: return {10, 1, 2};
206 default: return {0, 0, 0};
207 }
208 }
209