1 //===- TableGen.cpp - Top-Level TableGen implementation for LLVM ----------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains the main function for LLVM's TableGen. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "TableGenBackends.h" // Declares all backends. 15 #include "llvm/Support/CommandLine.h" 16 #include "llvm/Support/ManagedStatic.h" 17 #include "llvm/Support/PrettyStackTrace.h" 18 #include "llvm/Support/Signals.h" 19 #include "llvm/TableGen/Main.h" 20 #include "llvm/TableGen/Record.h" 21 #include "llvm/TableGen/SetTheory.h" 22 23 using namespace llvm; 24 25 enum ActionType { 26 PrintRecords, 27 DumpJSON, 28 GenEmitter, 29 GenRegisterInfo, 30 GenInstrInfo, 31 GenInstrDocs, 32 GenAsmWriter, 33 GenAsmMatcher, 34 GenDisassembler, 35 GenPseudoLowering, 36 GenCompressInst, 37 GenCallingConv, 38 GenDAGISel, 39 GenDFAPacketizer, 40 GenFastISel, 41 GenSubtarget, 42 GenIntrinsicEnums, 43 GenIntrinsicImpl, 44 GenTgtIntrinsicEnums, 45 GenTgtIntrinsicImpl, 46 PrintEnums, 47 PrintSets, 48 GenOptParserDefs, 49 GenCTags, 50 GenAttributes, 51 GenSearchableTables, 52 GenGlobalISel, 53 GenX86EVEX2VEXTables, 54 GenX86FoldTables, 55 GenRegisterBank, 56 }; 57 58 namespace { 59 cl::opt<ActionType> 60 Action(cl::desc("Action to perform:"), 61 cl::values(clEnumValN(PrintRecords, "print-records", 62 "Print all records to stdout (default)"), 63 clEnumValN(DumpJSON, "dump-json", 64 "Dump all records as machine-readable JSON"), 65 clEnumValN(GenEmitter, "gen-emitter", 66 "Generate machine code emitter"), 67 clEnumValN(GenRegisterInfo, "gen-register-info", 68 "Generate registers and register classes info"), 69 clEnumValN(GenInstrInfo, "gen-instr-info", 70 "Generate instruction descriptions"), 71 clEnumValN(GenInstrDocs, "gen-instr-docs", 72 "Generate instruction documentation"), 73 clEnumValN(GenCallingConv, "gen-callingconv", 74 "Generate calling convention descriptions"), 75 clEnumValN(GenAsmWriter, "gen-asm-writer", 76 "Generate assembly writer"), 77 clEnumValN(GenDisassembler, "gen-disassembler", 78 "Generate disassembler"), 79 clEnumValN(GenPseudoLowering, "gen-pseudo-lowering", 80 "Generate pseudo instruction lowering"), 81 clEnumValN(GenCompressInst, "gen-compress-inst-emitter", 82 "Generate RISCV compressed instructions."), 83 clEnumValN(GenAsmMatcher, "gen-asm-matcher", 84 "Generate assembly instruction matcher"), 85 clEnumValN(GenDAGISel, "gen-dag-isel", 86 "Generate a DAG instruction selector"), 87 clEnumValN(GenDFAPacketizer, "gen-dfa-packetizer", 88 "Generate DFA Packetizer for VLIW targets"), 89 clEnumValN(GenFastISel, "gen-fast-isel", 90 "Generate a \"fast\" instruction selector"), 91 clEnumValN(GenSubtarget, "gen-subtarget", 92 "Generate subtarget enumerations"), 93 clEnumValN(GenIntrinsicEnums, "gen-intrinsic-enums", 94 "Generate intrinsic enums"), 95 clEnumValN(GenIntrinsicImpl, "gen-intrinsic-impl", 96 "Generate intrinsic information"), 97 clEnumValN(GenTgtIntrinsicEnums, "gen-tgt-intrinsic-enums", 98 "Generate target intrinsic enums"), 99 clEnumValN(GenTgtIntrinsicImpl, "gen-tgt-intrinsic-impl", 100 "Generate target intrinsic information"), 101 clEnumValN(PrintEnums, "print-enums", 102 "Print enum values for a class"), 103 clEnumValN(PrintSets, "print-sets", 104 "Print expanded sets for testing DAG exprs"), 105 clEnumValN(GenOptParserDefs, "gen-opt-parser-defs", 106 "Generate option definitions"), 107 clEnumValN(GenCTags, "gen-ctags", 108 "Generate ctags-compatible index"), 109 clEnumValN(GenAttributes, "gen-attrs", 110 "Generate attributes"), 111 clEnumValN(GenSearchableTables, "gen-searchable-tables", 112 "Generate generic binary-searchable table"), 113 clEnumValN(GenGlobalISel, "gen-global-isel", 114 "Generate GlobalISel selector"), 115 clEnumValN(GenX86EVEX2VEXTables, "gen-x86-EVEX2VEX-tables", 116 "Generate X86 EVEX to VEX compress tables"), 117 clEnumValN(GenX86FoldTables, "gen-x86-fold-tables", 118 "Generate X86 fold tables"), 119 clEnumValN(GenRegisterBank, "gen-register-bank", 120 "Generate registers bank descriptions"))); 121 122 cl::OptionCategory PrintEnumsCat("Options for -print-enums"); 123 cl::opt<std::string> 124 Class("class", cl::desc("Print Enum list for this class"), 125 cl::value_desc("class name"), cl::cat(PrintEnumsCat)); 126 127 bool LLVMTableGenMain(raw_ostream &OS, RecordKeeper &Records) { 128 switch (Action) { 129 case PrintRecords: 130 OS << Records; // No argument, dump all contents 131 break; 132 case DumpJSON: 133 EmitJSON(Records, OS); 134 break; 135 case GenEmitter: 136 EmitCodeEmitter(Records, OS); 137 break; 138 case GenRegisterInfo: 139 EmitRegisterInfo(Records, OS); 140 break; 141 case GenInstrInfo: 142 EmitInstrInfo(Records, OS); 143 break; 144 case GenInstrDocs: 145 EmitInstrDocs(Records, OS); 146 break; 147 case GenCallingConv: 148 EmitCallingConv(Records, OS); 149 break; 150 case GenAsmWriter: 151 EmitAsmWriter(Records, OS); 152 break; 153 case GenAsmMatcher: 154 EmitAsmMatcher(Records, OS); 155 break; 156 case GenDisassembler: 157 EmitDisassembler(Records, OS); 158 break; 159 case GenPseudoLowering: 160 EmitPseudoLowering(Records, OS); 161 break; 162 case GenCompressInst: 163 EmitCompressInst(Records, OS); 164 break; 165 case GenDAGISel: 166 EmitDAGISel(Records, OS); 167 break; 168 case GenDFAPacketizer: 169 EmitDFAPacketizer(Records, OS); 170 break; 171 case GenFastISel: 172 EmitFastISel(Records, OS); 173 break; 174 case GenSubtarget: 175 EmitSubtarget(Records, OS); 176 break; 177 case GenIntrinsicEnums: 178 EmitIntrinsicEnums(Records, OS); 179 break; 180 case GenIntrinsicImpl: 181 EmitIntrinsicImpl(Records, OS); 182 break; 183 case GenTgtIntrinsicEnums: 184 EmitIntrinsicEnums(Records, OS, true); 185 break; 186 case GenTgtIntrinsicImpl: 187 EmitIntrinsicImpl(Records, OS, true); 188 break; 189 case GenOptParserDefs: 190 EmitOptParser(Records, OS); 191 break; 192 case PrintEnums: 193 { 194 for (Record *Rec : Records.getAllDerivedDefinitions(Class)) 195 OS << Rec->getName() << ", "; 196 OS << "\n"; 197 break; 198 } 199 case PrintSets: 200 { 201 SetTheory Sets; 202 Sets.addFieldExpander("Set", "Elements"); 203 for (Record *Rec : Records.getAllDerivedDefinitions("Set")) { 204 OS << Rec->getName() << " = ["; 205 const std::vector<Record*> *Elts = Sets.expand(Rec); 206 assert(Elts && "Couldn't expand Set instance"); 207 for (Record *Elt : *Elts) 208 OS << ' ' << Elt->getName(); 209 OS << " ]\n"; 210 } 211 break; 212 } 213 case GenCTags: 214 EmitCTags(Records, OS); 215 break; 216 case GenAttributes: 217 EmitAttributes(Records, OS); 218 break; 219 case GenSearchableTables: 220 EmitSearchableTables(Records, OS); 221 break; 222 case GenGlobalISel: 223 EmitGlobalISel(Records, OS); 224 break; 225 case GenRegisterBank: 226 EmitRegisterBank(Records, OS); 227 break; 228 case GenX86EVEX2VEXTables: 229 EmitX86EVEX2VEXTables(Records, OS); 230 break; 231 case GenX86FoldTables: 232 EmitX86FoldTables(Records, OS); 233 break; 234 } 235 236 return false; 237 } 238 } 239 240 int main(int argc, char **argv) { 241 sys::PrintStackTraceOnErrorSignal(argv[0]); 242 PrettyStackTraceProgram X(argc, argv); 243 cl::ParseCommandLineOptions(argc, argv); 244 245 llvm_shutdown_obj Y; 246 247 return TableGenMain(argv[0], &LLVMTableGenMain); 248 } 249 250 #ifdef __has_feature 251 #if __has_feature(address_sanitizer) 252 #include <sanitizer/lsan_interface.h> 253 // Disable LeakSanitizer for this binary as it has too many leaks that are not 254 // very interesting to fix. See compiler-rt/include/sanitizer/lsan_interface.h . 255 LLVM_ATTRIBUTE_USED int __lsan_is_turned_off() { return 1; } 256 #endif // __has_feature(address_sanitizer) 257 #endif // defined(__has_feature) 258