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 #ifndef LLVM_TARGETPARSER_TARGETPARSER_H 15 #define LLVM_TARGETPARSER_TARGETPARSER_H 16 17 #include "llvm/ADT/StringMap.h" 18 #include "llvm/ADT/StringRef.h" 19 20 namespace llvm { 21 22 template <typename T> class SmallVectorImpl; 23 class Triple; 24 25 // Target specific information in their own namespaces. 26 // (ARM/AArch64/X86 are declared in ARM/AArch64/X86TargetParser.h) 27 // These should be generated from TableGen because the information is already 28 // there, and there is where new information about targets will be added. 29 // FIXME: To TableGen this we need to make some table generated files available 30 // even if the back-end is not compiled with LLVM, plus we need to create a new 31 // back-end to TableGen to create these clean tables. 32 namespace AMDGPU { 33 34 /// GPU kinds supported by the AMDGPU target. 35 enum GPUKind : uint32_t { 36 // Not specified processor. 37 GK_NONE = 0, 38 39 // R600-based processors. 40 GK_R600 = 1, 41 GK_R630 = 2, 42 GK_RS880 = 3, 43 GK_RV670 = 4, 44 GK_RV710 = 5, 45 GK_RV730 = 6, 46 GK_RV770 = 7, 47 GK_CEDAR = 8, 48 GK_CYPRESS = 9, 49 GK_JUNIPER = 10, 50 GK_REDWOOD = 11, 51 GK_SUMO = 12, 52 GK_BARTS = 13, 53 GK_CAICOS = 14, 54 GK_CAYMAN = 15, 55 GK_TURKS = 16, 56 57 GK_R600_FIRST = GK_R600, 58 GK_R600_LAST = GK_TURKS, 59 60 // AMDGCN-based processors. 61 GK_GFX600 = 32, 62 GK_GFX601 = 33, 63 GK_GFX602 = 34, 64 65 GK_GFX700 = 40, 66 GK_GFX701 = 41, 67 GK_GFX702 = 42, 68 GK_GFX703 = 43, 69 GK_GFX704 = 44, 70 GK_GFX705 = 45, 71 72 GK_GFX801 = 50, 73 GK_GFX802 = 51, 74 GK_GFX803 = 52, 75 GK_GFX805 = 53, 76 GK_GFX810 = 54, 77 78 GK_GFX900 = 60, 79 GK_GFX902 = 61, 80 GK_GFX904 = 62, 81 GK_GFX906 = 63, 82 GK_GFX908 = 64, 83 GK_GFX909 = 65, 84 GK_GFX90A = 66, 85 GK_GFX90C = 67, 86 GK_GFX940 = 68, 87 GK_GFX941 = 69, 88 GK_GFX942 = 70, 89 90 GK_GFX1010 = 71, 91 GK_GFX1011 = 72, 92 GK_GFX1012 = 73, 93 GK_GFX1013 = 74, 94 GK_GFX1030 = 75, 95 GK_GFX1031 = 76, 96 GK_GFX1032 = 77, 97 GK_GFX1033 = 78, 98 GK_GFX1034 = 79, 99 GK_GFX1035 = 80, 100 GK_GFX1036 = 81, 101 102 GK_GFX1100 = 90, 103 GK_GFX1101 = 91, 104 GK_GFX1102 = 92, 105 GK_GFX1103 = 93, 106 GK_GFX1150 = 94, 107 GK_GFX1151 = 95, 108 109 GK_GFX1200 = 100, 110 GK_GFX1201 = 101, 111 112 GK_AMDGCN_FIRST = GK_GFX600, 113 GK_AMDGCN_LAST = GK_GFX1201, 114 }; 115 116 /// Instruction set architecture version. 117 struct IsaVersion { 118 unsigned Major; 119 unsigned Minor; 120 unsigned Stepping; 121 }; 122 123 // This isn't comprehensive for now, just things that are needed from the 124 // frontend driver. 125 enum ArchFeatureKind : uint32_t { 126 FEATURE_NONE = 0, 127 128 // These features only exist for r600, and are implied true for amdgcn. 129 FEATURE_FMA = 1 << 1, 130 FEATURE_LDEXP = 1 << 2, 131 FEATURE_FP64 = 1 << 3, 132 133 // Common features. 134 FEATURE_FAST_FMA_F32 = 1 << 4, 135 FEATURE_FAST_DENORMAL_F32 = 1 << 5, 136 137 // Wavefront 32 is available. 138 FEATURE_WAVE32 = 1 << 6, 139 140 // Xnack is available. 141 FEATURE_XNACK = 1 << 7, 142 143 // Sram-ecc is available. 144 FEATURE_SRAMECC = 1 << 8, 145 146 // WGP mode is supported. 147 FEATURE_WGP = 1 << 9, 148 }; 149 150 StringRef getArchNameAMDGCN(GPUKind AK); 151 StringRef getArchNameR600(GPUKind AK); 152 StringRef getCanonicalArchName(const Triple &T, StringRef Arch); 153 GPUKind parseArchAMDGCN(StringRef CPU); 154 GPUKind parseArchR600(StringRef CPU); 155 unsigned getArchAttrAMDGCN(GPUKind AK); 156 unsigned getArchAttrR600(GPUKind AK); 157 158 void fillValidArchListAMDGCN(SmallVectorImpl<StringRef> &Values); 159 void fillValidArchListR600(SmallVectorImpl<StringRef> &Values); 160 161 IsaVersion getIsaVersion(StringRef GPU); 162 163 /// Fills Features map with default values for given target GPU 164 void fillAMDGPUFeatureMap(StringRef GPU, const Triple &T, 165 StringMap<bool> &Features); 166 167 /// Inserts wave size feature for given GPU into features map 168 bool insertWaveSizeFeature(StringRef GPU, const Triple &T, 169 StringMap<bool> &Features, std::string &ErrorMsg); 170 171 } // namespace AMDGPU 172 } // namespace llvm 173 174 #endif 175