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 GenRegisterBank, 50 }; 51 52 namespace { 53 cl::opt<ActionType> 54 Action(cl::desc("Action to perform:"), 55 cl::values(clEnumValN(PrintRecords, "print-records", 56 "Print all records to stdout (default)"), 57 clEnumValN(GenEmitter, "gen-emitter", 58 "Generate machine code emitter"), 59 clEnumValN(GenRegisterInfo, "gen-register-info", 60 "Generate registers and register classes info"), 61 clEnumValN(GenInstrInfo, "gen-instr-info", 62 "Generate instruction descriptions"), 63 clEnumValN(GenCallingConv, "gen-callingconv", 64 "Generate calling convention descriptions"), 65 clEnumValN(GenAsmWriter, "gen-asm-writer", 66 "Generate assembly writer"), 67 clEnumValN(GenDisassembler, "gen-disassembler", 68 "Generate disassembler"), 69 clEnumValN(GenPseudoLowering, "gen-pseudo-lowering", 70 "Generate pseudo instruction lowering"), 71 clEnumValN(GenAsmMatcher, "gen-asm-matcher", 72 "Generate assembly instruction matcher"), 73 clEnumValN(GenDAGISel, "gen-dag-isel", 74 "Generate a DAG instruction selector"), 75 clEnumValN(GenDFAPacketizer, "gen-dfa-packetizer", 76 "Generate DFA Packetizer for VLIW targets"), 77 clEnumValN(GenFastISel, "gen-fast-isel", 78 "Generate a \"fast\" instruction selector"), 79 clEnumValN(GenSubtarget, "gen-subtarget", 80 "Generate subtarget enumerations"), 81 clEnumValN(GenIntrinsic, "gen-intrinsic", 82 "Generate intrinsic information"), 83 clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic", 84 "Generate target intrinsic information"), 85 clEnumValN(PrintEnums, "print-enums", 86 "Print enum values for a class"), 87 clEnumValN(PrintSets, "print-sets", 88 "Print expanded sets for testing DAG exprs"), 89 clEnumValN(GenOptParserDefs, "gen-opt-parser-defs", 90 "Generate option definitions"), 91 clEnumValN(GenCTags, "gen-ctags", 92 "Generate ctags-compatible index"), 93 clEnumValN(GenAttributes, "gen-attrs", 94 "Generate attributes"), 95 clEnumValN(GenSearchableTables, "gen-searchable-tables", 96 "Generate generic binary-searchable table"), 97 clEnumValN(GenGlobalISel, "gen-global-isel", 98 "Generate GlobalISel selector"), 99 clEnumValN(GenRegisterBank, "gen-register-bank", 100 "Generate registers bank descriptions"))); 101 102 cl::opt<std::string> 103 Class("class", cl::desc("Print Enum list for this class"), 104 cl::value_desc("class name")); 105 106 bool LLVMTableGenMain(raw_ostream &OS, RecordKeeper &Records) { 107 switch (Action) { 108 case PrintRecords: 109 OS << Records; // No argument, dump all contents 110 break; 111 case GenEmitter: 112 EmitCodeEmitter(Records, OS); 113 break; 114 case GenRegisterInfo: 115 EmitRegisterInfo(Records, OS); 116 break; 117 case GenInstrInfo: 118 EmitInstrInfo(Records, OS); 119 break; 120 case GenCallingConv: 121 EmitCallingConv(Records, OS); 122 break; 123 case GenAsmWriter: 124 EmitAsmWriter(Records, OS); 125 break; 126 case GenAsmMatcher: 127 EmitAsmMatcher(Records, OS); 128 break; 129 case GenDisassembler: 130 EmitDisassembler(Records, OS); 131 break; 132 case GenPseudoLowering: 133 EmitPseudoLowering(Records, OS); 134 break; 135 case GenDAGISel: 136 EmitDAGISel(Records, OS); 137 break; 138 case GenDFAPacketizer: 139 EmitDFAPacketizer(Records, OS); 140 break; 141 case GenFastISel: 142 EmitFastISel(Records, OS); 143 break; 144 case GenSubtarget: 145 EmitSubtarget(Records, OS); 146 break; 147 case GenIntrinsic: 148 EmitIntrinsics(Records, OS); 149 break; 150 case GenTgtIntrinsic: 151 EmitIntrinsics(Records, OS, true); 152 break; 153 case GenOptParserDefs: 154 EmitOptParser(Records, OS); 155 break; 156 case PrintEnums: 157 { 158 for (Record *Rec : Records.getAllDerivedDefinitions(Class)) 159 OS << Rec->getName() << ", "; 160 OS << "\n"; 161 break; 162 } 163 case PrintSets: 164 { 165 SetTheory Sets; 166 Sets.addFieldExpander("Set", "Elements"); 167 for (Record *Rec : Records.getAllDerivedDefinitions("Set")) { 168 OS << Rec->getName() << " = ["; 169 const std::vector<Record*> *Elts = Sets.expand(Rec); 170 assert(Elts && "Couldn't expand Set instance"); 171 for (Record *Elt : *Elts) 172 OS << ' ' << Elt->getName(); 173 OS << " ]\n"; 174 } 175 break; 176 } 177 case GenCTags: 178 EmitCTags(Records, OS); 179 break; 180 case GenAttributes: 181 EmitAttributes(Records, OS); 182 break; 183 case GenSearchableTables: 184 EmitSearchableTables(Records, OS); 185 break; 186 case GenGlobalISel: 187 EmitGlobalISel(Records, OS); 188 break; 189 case GenRegisterBank: 190 EmitRegisterBank(Records, OS); 191 break; 192 } 193 194 return false; 195 } 196 } 197 198 int main(int argc, char **argv) { 199 sys::PrintStackTraceOnErrorSignal(argv[0]); 200 PrettyStackTraceProgram X(argc, argv); 201 cl::ParseCommandLineOptions(argc, argv); 202 203 llvm_shutdown_obj Y; 204 205 return TableGenMain(argv[0], &LLVMTableGenMain); 206 } 207 208 #ifdef __has_feature 209 #if __has_feature(address_sanitizer) 210 #include <sanitizer/lsan_interface.h> 211 // Disable LeakSanitizer for this binary as it has too many leaks that are not 212 // very interesting to fix. See compiler-rt/include/sanitizer/lsan_interface.h . 213 int __lsan_is_turned_off() { return 1; } 214 #endif // __has_feature(address_sanitizer) 215 #endif // defined(__has_feature) 216