LLVM  9.0.0svn
TargetParser.cpp
Go to the documentation of this file.
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 
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 {
27  StringLiteral CanonicalName;
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[33] = {
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  {{"gfx909"}, {"gfx909"}, GK_GFX909, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
101 };
102 
103 const GPUInfo *getArchEntry(AMDGPU::GPUKind AK, ArrayRef<GPUInfo> Table) {
104  GPUInfo Search = { {""}, {""}, AK, AMDGPU::FEATURE_NONE };
105 
106  auto I = std::lower_bound(Table.begin(), Table.end(), Search,
107  [](const GPUInfo &A, const GPUInfo &B) {
108  return A.Kind < B.Kind;
109  });
110 
111  if (I == Table.end())
112  return nullptr;
113  return I;
114 }
115 
116 } // namespace
117 
119  if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
120  return Entry->CanonicalName;
121  return "";
122 }
123 
125  if (const auto *Entry = getArchEntry(AK, R600GPUs))
126  return Entry->CanonicalName;
127  return "";
128 }
129 
131  for (const auto C : AMDGCNGPUs) {
132  if (CPU == C.Name)
133  return C.Kind;
134  }
135 
137 }
138 
140  for (const auto C : R600GPUs) {
141  if (CPU == C.Name)
142  return C.Kind;
143  }
144 
146 }
147 
149  if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
150  return Entry->Features;
151  return FEATURE_NONE;
152 }
153 
155  if (const auto *Entry = getArchEntry(AK, R600GPUs))
156  return Entry->Features;
157  return FEATURE_NONE;
158 }
159 
161  // XXX: Should this only report unique canonical names?
162  for (const auto C : AMDGCNGPUs)
163  Values.push_back(C.Name);
164 }
165 
167  for (const auto C : R600GPUs)
168  Values.push_back(C.Name);
169 }
170 
172  if (GPU == "generic")
173  return {7, 0, 0};
174 
176  if (AK == AMDGPU::GPUKind::GK_NONE)
177  return {0, 0, 0};
178 
179  switch (AK) {
180  case GK_GFX600: return {6, 0, 0};
181  case GK_GFX601: return {6, 0, 1};
182  case GK_GFX700: return {7, 0, 0};
183  case GK_GFX701: return {7, 0, 1};
184  case GK_GFX702: return {7, 0, 2};
185  case GK_GFX703: return {7, 0, 3};
186  case GK_GFX704: return {7, 0, 4};
187  case GK_GFX801: return {8, 0, 1};
188  case GK_GFX802: return {8, 0, 2};
189  case GK_GFX803: return {8, 0, 3};
190  case GK_GFX810: return {8, 1, 0};
191  case GK_GFX900: return {9, 0, 0};
192  case GK_GFX902: return {9, 0, 2};
193  case GK_GFX904: return {9, 0, 4};
194  case GK_GFX906: return {9, 0, 6};
195  case GK_GFX909: return {9, 0, 9};
196  default: return {0, 0, 0};
197  }
198 }
uint64_t CallInst * C
StringRef getArchNameR600(GPUKind AK)
This class represents lattice values for constants.
Definition: AllocatorList.h:23
iterator begin() const
Definition: ArrayRef.h:136
amdgpu Simplify well known AMD library false FunctionCallee Value const Twine & Name
void push_back(const T &Elt)
Definition: SmallVector.h:211
const FeatureBitset Features
Instruction set architecture version.
Definition: TargetParser.h:131
void fillValidArchListAMDGCN(SmallVectorImpl< StringRef > &Values)
StringRef getArchNameAMDGCN(GPUKind AK)
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory)...
Definition: APInt.h:32
auto lower_bound(R &&Range, ForwardIt I) -> decltype(adl_begin(Range))
Provide wrappers to std::lower_bound which take ranges instead of having to pass begin/end explicitly...
Definition: STLExtras.h:1281
unsigned getArchAttrR600(GPUKind AK)
A wrapper around a string literal that serves as a proxy for constructing global tables of StringRefs...
Definition: StringRef.h:838
static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")
void fillValidArchListR600(SmallVectorImpl< StringRef > &Values)
GPUKind
GPU kinds supported by the AMDGPU target.
Definition: TargetParser.h:80
GPUKind parseArchAMDGCN(StringRef CPU)
unsigned getArchAttrAMDGCN(GPUKind AK)
IsaVersion getIsaVersion(StringRef GPU)
iterator end() const
Definition: ArrayRef.h:137
#define I(x, y, z)
Definition: MD5.cpp:58
const unsigned Kind
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48
GPUKind parseArchR600(StringRef CPU)