contrib/llvm/utils/TableGen/TableGen.cpp

   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)