LLVM  10.0.0svn
TargetParser.cpp
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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 
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 
122 StringRef llvm::AMDGPU::getArchNameAMDGCN(GPUKind AK) {
123  if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
124  return Entry->CanonicalName;
125  return "";
126 }
127 
128 StringRef llvm::AMDGPU::getArchNameR600(GPUKind AK) {
129  if (const auto *Entry = getArchEntry(AK, R600GPUs))
130  return Entry->CanonicalName;
131  return "";
132 }
133 
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 
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 
152 unsigned AMDGPU::getArchAttrAMDGCN(GPUKind AK) {
153  if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
154  return Entry->Features;
155  return FEATURE_NONE;
156 }
157 
158 unsigned AMDGPU::getArchAttrR600(GPUKind AK) {
159  if (const auto *Entry = getArchEntry(AK, R600GPUs))
160  return Entry->Features;
161  return FEATURE_NONE;
162 }
163 
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 
170 void AMDGPU::fillValidArchListR600(SmallVectorImpl<StringRef> &Values) {
171  for (const auto C : R600GPUs)
172  Values.push_back(C.Name);
173 }
174 
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 }
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