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