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
20using namespace llvm;
21using namespace AMDGPU;
22
23namespace {
24
25struct GPUInfo {
26  StringLiteral Name;
27  StringLiteral CanonicalName;
28  AMDGPU::GPUKind Kind;
29  unsigned Features;
30};
31
32constexpr 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
65constexpr 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
107const 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
122StringRef llvm::AMDGPU::getArchNameAMDGCN(GPUKind AK) {
123  if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
124    return Entry->CanonicalName;
125  return "";
126}
127
128StringRef llvm::AMDGPU::getArchNameR600(GPUKind AK) {
129  if (const auto *Entry = getArchEntry(AK, R600GPUs))
130    return Entry->CanonicalName;
131  return "";
132}
133
134AMDGPU::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
143AMDGPU::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
152unsigned AMDGPU::getArchAttrAMDGCN(GPUKind AK) {
153  if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
154    return Entry->Features;
155  return FEATURE_NONE;
156}
157
158unsigned AMDGPU::getArchAttrR600(GPUKind AK) {
159  if (const auto *Entry = getArchEntry(AK, R600GPUs))
160    return Entry->Features;
161  return FEATURE_NONE;
162}
163
164void 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
170void AMDGPU::fillValidArchListR600(SmallVectorImpl<StringRef> &Values) {
171  for (const auto &C : R600GPUs)
172    Values.push_back(C.Name);
173}
174
175AMDGPU::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