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/Error.h" 20 #include "llvm/TableGen/Main.h" 21 #include "llvm/TableGen/Record.h" 22 #include "llvm/TableGen/SetTheory.h" 23 24 using namespace llvm; 25 26 enum ActionType { 27 PrintRecords, 28 GenEmitter, 29 GenRegisterInfo, 30 GenInstrInfo, 31 GenAsmWriter, 32 GenAsmMatcher, 33 GenDisassembler, 34 GenPseudoLowering, 35 GenCallingConv, 36 GenDAGISel, 37 GenDFAPacketizer, 38 GenFastISel, 39 GenSubtarget, 40 GenIntrinsic, 41 GenTgtIntrinsic, 42 PrintEnums, 43 PrintSets, 44 GenOptParserDefs, 45 GenCTags, 46 GenAttributes, 47 GenSearchableTables, 48 GenGlobalISel, 49 }; 50 51 namespace { 52 cl::opt<ActionType> 53 Action(cl::desc("Action to perform:"), 54 cl::values(clEnumValN(PrintRecords, "print-records", 55 "Print all records to stdout (default)"), 56 clEnumValN(GenEmitter, "gen-emitter", 57 "Generate machine code emitter"), 58 clEnumValN(GenRegisterInfo, "gen-register-info", 59 "Generate registers and register classes info"), 60 clEnumValN(GenInstrInfo, "gen-instr-info", 61 "Generate instruction descriptions"), 62 clEnumValN(GenCallingConv, "gen-callingconv", 63 "Generate calling convention descriptions"), 64 clEnumValN(GenAsmWriter, "gen-asm-writer", 65 "Generate assembly writer"), 66 clEnumValN(GenDisassembler, "gen-disassembler", 67 "Generate disassembler"), 68 clEnumValN(GenPseudoLowering, "gen-pseudo-lowering", 69 "Generate pseudo instruction lowering"), 70 clEnumValN(GenAsmMatcher, "gen-asm-matcher", 71 "Generate assembly instruction matcher"), 72 clEnumValN(GenDAGISel, "gen-dag-isel", 73 "Generate a DAG instruction selector"), 74 clEnumValN(GenDFAPacketizer, "gen-dfa-packetizer", 75 "Generate DFA Packetizer for VLIW targets"), 76 clEnumValN(GenFastISel, "gen-fast-isel", 77 "Generate a \"fast\" instruction selector"), 78 clEnumValN(GenSubtarget, "gen-subtarget", 79 "Generate subtarget enumerations"), 80 clEnumValN(GenIntrinsic, "gen-intrinsic", 81 "Generate intrinsic information"), 82 clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic", 83 "Generate target intrinsic information"), 84 clEnumValN(PrintEnums, "print-enums", 85 "Print enum values for a class"), 86 clEnumValN(PrintSets, "print-sets", 87 "Print expanded sets for testing DAG exprs"), 88 clEnumValN(GenOptParserDefs, "gen-opt-parser-defs", 89 "Generate option definitions"), 90 clEnumValN(GenCTags, "gen-ctags", 91 "Generate ctags-compatible index"), 92 clEnumValN(GenAttributes, "gen-attrs", 93 "Generate attributes"), 94 clEnumValN(GenSearchableTables, "gen-searchable-tables", 95 "Generate generic binary-searchable table"), 96 clEnumValN(GenGlobalISel, "gen-global-isel", 97 "Generate GlobalISel selector"))); 98 99 cl::opt<std::string> 100 Class("class", cl::desc("Print Enum list for this class"), 101 cl::value_desc("class name")); 102 103 bool LLVMTableGenMain(raw_ostream &OS, RecordKeeper &Records) { 104 switch (Action) { 105 case PrintRecords: 106 OS << Records; // No argument, dump all contents 107 break; 108 case GenEmitter: 109 EmitCodeEmitter(Records, OS); 110 break; 111 case GenRegisterInfo: 112 EmitRegisterInfo(Records, OS); 113 break; 114 case GenInstrInfo: 115 EmitInstrInfo(Records, OS); 116 break; 117 case GenCallingConv: 118 EmitCallingConv(Records, OS); 119 break; 120 case GenAsmWriter: 121 EmitAsmWriter(Records, OS); 122 break; 123 case GenAsmMatcher: 124 EmitAsmMatcher(Records, OS); 125 break; 126 case GenDisassembler: 127 EmitDisassembler(Records, OS); 128 break; 129 case GenPseudoLowering: 130 EmitPseudoLowering(Records, OS); 131 break; 132 case GenDAGISel: 133 EmitDAGISel(Records, OS); 134 break; 135 case GenDFAPacketizer: 136 EmitDFAPacketizer(Records, OS); 137 break; 138 case GenFastISel: 139 EmitFastISel(Records, OS); 140 break; 141 case GenSubtarget: 142 EmitSubtarget(Records, OS); 143 break; 144 case GenIntrinsic: 145 EmitIntrinsics(Records, OS); 146 break; 147 case GenTgtIntrinsic: 148 EmitIntrinsics(Records, OS, true); 149 break; 150 case GenOptParserDefs: 151 EmitOptParser(Records, OS); 152 break; 153 case PrintEnums: 154 { 155 for (Record *Rec : Records.getAllDerivedDefinitions(Class)) 156 OS << Rec->getName() << ", "; 157 OS << "\n"; 158 break; 159 } 160 case PrintSets: 161 { 162 SetTheory Sets; 163 Sets.addFieldExpander("Set", "Elements"); 164 for (Record *Rec : Records.getAllDerivedDefinitions("Set")) { 165 OS << Rec->getName() << " = ["; 166 const std::vector<Record*> *Elts = Sets.expand(Rec); 167 assert(Elts && "Couldn't expand Set instance"); 168 for (Record *Elt : *Elts) 169 OS << ' ' << Elt->getName(); 170 OS << " ]\n"; 171 } 172 break; 173 } 174 case GenCTags: 175 EmitCTags(Records, OS); 176 break; 177 case GenAttributes: 178 EmitAttributes(Records, OS); 179 break; 180 case GenSearchableTables: 181 EmitSearchableTables(Records, OS); 182 break; 183 case GenGlobalISel: 184 EmitGlobalISel(Records, OS); 185 break; 186 } 187 188 return false; 189 } 190 } 191 192 int main(int argc, char **argv) { 193 sys::PrintStackTraceOnErrorSignal(argv[0]); 194 PrettyStackTraceProgram X(argc, argv); 195 cl::ParseCommandLineOptions(argc, argv); 196 197 llvm_shutdown_obj Y; 198 199 return TableGenMain(argv[0], &LLVMTableGenMain); 200 } 201 202 #ifdef __has_feature 203 #if __has_feature(address_sanitizer) 204 #include <sanitizer/lsan_interface.h> 205 // Disable LeakSanitizer for this binary as it has too many leaks that are not 206 // very interesting to fix. See compiler-rt/include/sanitizer/lsan_interface.h . 207 int __lsan_is_turned_off() { return 1; } 208 #endif // __has_feature(address_sanitizer) 209 #endif // defined(__has_feature) 210