1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "flang/Frontend/CompilerInvocation.h" 10 #include "flang/Common/Fortran-features.h" 11 #include "flang/Frontend/PreprocessorOptions.h" 12 #include "flang/Semantics/semantics.h" 13 #include "flang/Version.inc" 14 #include "clang/Basic/AllDiagnostics.h" 15 #include "clang/Basic/DiagnosticDriver.h" 16 #include "clang/Basic/DiagnosticOptions.h" 17 #include "clang/Driver/DriverDiagnostic.h" 18 #include "clang/Driver/Options.h" 19 #include "llvm/ADT/StringRef.h" 20 #include "llvm/ADT/StringSwitch.h" 21 #include "llvm/Option/Arg.h" 22 #include "llvm/Option/ArgList.h" 23 #include "llvm/Option/OptTable.h" 24 #include "llvm/Support/FileSystem.h" 25 #include "llvm/Support/FileUtilities.h" 26 #include "llvm/Support/Process.h" 27 #include "llvm/Support/raw_ostream.h" 28 #include <memory> 29 30 using namespace Fortran::frontend; 31 32 //===----------------------------------------------------------------------===// 33 // Initialization. 34 //===----------------------------------------------------------------------===// 35 CompilerInvocationBase::CompilerInvocationBase() 36 : diagnosticOpts_(new clang::DiagnosticOptions()), 37 preprocessorOpts_(new PreprocessorOptions()) {} 38 39 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &x) 40 : diagnosticOpts_(new clang::DiagnosticOptions(x.GetDiagnosticOpts())), 41 preprocessorOpts_(new PreprocessorOptions(x.preprocessorOpts())) {} 42 43 CompilerInvocationBase::~CompilerInvocationBase() = default; 44 45 //===----------------------------------------------------------------------===// 46 // Deserialization (from args) 47 //===----------------------------------------------------------------------===// 48 static bool parseShowColorsArgs( 49 const llvm::opt::ArgList &args, bool defaultColor) { 50 // Color diagnostics default to auto ("on" if terminal supports) in the driver 51 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 52 // Support both clang's -f[no-]color-diagnostics and gcc's 53 // -f[no-]diagnostics-colors[=never|always|auto]. 54 enum { 55 Colors_On, 56 Colors_Off, 57 Colors_Auto 58 } ShowColors = defaultColor ? Colors_Auto : Colors_Off; 59 60 for (auto *a : args) { 61 const llvm::opt::Option &O = a->getOption(); 62 if (O.matches(clang::driver::options::OPT_fcolor_diagnostics) || 63 O.matches(clang::driver::options::OPT_fdiagnostics_color)) { 64 ShowColors = Colors_On; 65 } else if (O.matches(clang::driver::options::OPT_fno_color_diagnostics) || 66 O.matches(clang::driver::options::OPT_fno_diagnostics_color)) { 67 ShowColors = Colors_Off; 68 } else if (O.matches(clang::driver::options::OPT_fdiagnostics_color_EQ)) { 69 llvm::StringRef value(a->getValue()); 70 if (value == "always") 71 ShowColors = Colors_On; 72 else if (value == "never") 73 ShowColors = Colors_Off; 74 else if (value == "auto") 75 ShowColors = Colors_Auto; 76 } 77 } 78 79 return ShowColors == Colors_On || 80 (ShowColors == Colors_Auto && llvm::sys::Process::StandardErrHasColors()); 81 } 82 83 bool Fortran::frontend::ParseDiagnosticArgs(clang::DiagnosticOptions &opts, 84 llvm::opt::ArgList &args, bool defaultDiagColor) { 85 opts.ShowColors = parseShowColorsArgs(args, defaultDiagColor); 86 87 return true; 88 } 89 90 // Tweak the frontend configuration based on the frontend action 91 static void setUpFrontendBasedOnAction(FrontendOptions &opts) { 92 assert(opts.programAction_ != Fortran::frontend::InvalidAction && 93 "Fortran frontend action not set!"); 94 95 if (opts.programAction_ == DebugDumpParsingLog) 96 opts.instrumentedParse_ = true; 97 98 if (opts.programAction_ == DebugDumpProvenance || 99 opts.programAction_ == Fortran::frontend::GetDefinition) 100 opts.needProvenanceRangeToCharBlockMappings_ = true; 101 } 102 103 static bool ParseFrontendArgs(FrontendOptions &opts, llvm::opt::ArgList &args, 104 clang::DiagnosticsEngine &diags) { 105 unsigned numErrorsBefore = diags.getNumErrors(); 106 107 // By default the frontend driver creates a ParseSyntaxOnly action. 108 opts.programAction_ = ParseSyntaxOnly; 109 110 // Identify the action (i.e. opts.ProgramAction) 111 if (const llvm::opt::Arg *a = 112 args.getLastArg(clang::driver::options::OPT_Action_Group)) { 113 switch (a->getOption().getID()) { 114 default: { 115 llvm_unreachable("Invalid option in group!"); 116 } 117 case clang::driver::options::OPT_test_io: 118 opts.programAction_ = InputOutputTest; 119 break; 120 case clang::driver::options::OPT_E: 121 opts.programAction_ = PrintPreprocessedInput; 122 break; 123 case clang::driver::options::OPT_fsyntax_only: 124 opts.programAction_ = ParseSyntaxOnly; 125 break; 126 case clang::driver::options::OPT_emit_obj: 127 opts.programAction_ = EmitObj; 128 break; 129 case clang::driver::options::OPT_fdebug_unparse: 130 opts.programAction_ = DebugUnparse; 131 break; 132 case clang::driver::options::OPT_fdebug_unparse_no_sema: 133 opts.programAction_ = DebugUnparseNoSema; 134 break; 135 case clang::driver::options::OPT_fdebug_unparse_with_symbols: 136 opts.programAction_ = DebugUnparseWithSymbols; 137 break; 138 case clang::driver::options::OPT_fdebug_dump_symbols: 139 opts.programAction_ = DebugDumpSymbols; 140 break; 141 case clang::driver::options::OPT_fdebug_dump_parse_tree: 142 opts.programAction_ = DebugDumpParseTree; 143 break; 144 case clang::driver::options::OPT_fdebug_dump_all: 145 opts.programAction_ = DebugDumpAll; 146 break; 147 case clang::driver::options::OPT_fdebug_dump_parse_tree_no_sema: 148 opts.programAction_ = DebugDumpParseTreeNoSema; 149 break; 150 case clang::driver::options::OPT_fdebug_dump_provenance: 151 opts.programAction_ = DebugDumpProvenance; 152 break; 153 case clang::driver::options::OPT_fdebug_dump_parsing_log: 154 opts.programAction_ = DebugDumpParsingLog; 155 break; 156 case clang::driver::options::OPT_fdebug_measure_parse_tree: 157 opts.programAction_ = DebugMeasureParseTree; 158 break; 159 case clang::driver::options::OPT_fdebug_pre_fir_tree: 160 opts.programAction_ = DebugPreFIRTree; 161 break; 162 case clang::driver::options::OPT_fget_symbols_sources: 163 opts.programAction_ = GetSymbolsSources; 164 break; 165 case clang::driver::options::OPT_fget_definition: 166 opts.programAction_ = GetDefinition; 167 break; 168 case clang::driver::options::OPT_init_only: 169 opts.programAction_ = InitOnly; 170 break; 171 172 // TODO: 173 // case clang::driver::options::OPT_emit_llvm: 174 // case clang::driver::options::OPT_emit_llvm_only: 175 // case clang::driver::options::OPT_emit_codegen_only: 176 // case clang::driver::options::OPT_emit_module: 177 // (...) 178 } 179 180 // Parse the values provided with `-fget-definition` (there should be 3 181 // integers) 182 if (llvm::opt::OptSpecifier(a->getOption().getID()) == 183 clang::driver::options::OPT_fget_definition) { 184 unsigned optVals[3] = {0, 0, 0}; 185 186 for (unsigned i = 0; i < 3; i++) { 187 llvm::StringRef val = a->getValue(i); 188 189 if (val.getAsInteger(10, optVals[i])) { 190 // A non-integer was encountered - that's an error. 191 diags.Report(clang::diag::err_drv_invalid_value) 192 << a->getOption().getName() << val; 193 break; 194 } 195 } 196 opts.getDefVals_.line = optVals[0]; 197 opts.getDefVals_.startColumn = optVals[1]; 198 opts.getDefVals_.endColumn = optVals[2]; 199 } 200 } 201 202 opts.outputFile_ = args.getLastArgValue(clang::driver::options::OPT_o); 203 opts.showHelp_ = args.hasArg(clang::driver::options::OPT_help); 204 opts.showVersion_ = args.hasArg(clang::driver::options::OPT_version); 205 206 // Get the input kind (from the value passed via `-x`) 207 InputKind dashX(Language::Unknown); 208 if (const llvm::opt::Arg *a = 209 args.getLastArg(clang::driver::options::OPT_x)) { 210 llvm::StringRef XValue = a->getValue(); 211 // Principal languages. 212 dashX = llvm::StringSwitch<InputKind>(XValue) 213 .Case("f90", Language::Fortran) 214 .Default(Language::Unknown); 215 216 // Some special cases cannot be combined with suffixes. 217 if (dashX.IsUnknown()) 218 dashX = llvm::StringSwitch<InputKind>(XValue) 219 .Case("ir", Language::LLVM_IR) 220 .Default(Language::Unknown); 221 222 if (dashX.IsUnknown()) 223 diags.Report(clang::diag::err_drv_invalid_value) 224 << a->getAsString(args) << a->getValue(); 225 } 226 227 // Collect the input files and save them in our instance of FrontendOptions. 228 std::vector<std::string> inputs = 229 args.getAllArgValues(clang::driver::options::OPT_INPUT); 230 opts.inputs_.clear(); 231 if (inputs.empty()) 232 // '-' is the default input if none is given. 233 inputs.push_back("-"); 234 for (unsigned i = 0, e = inputs.size(); i != e; ++i) { 235 InputKind ik = dashX; 236 if (ik.IsUnknown()) { 237 ik = FrontendOptions::GetInputKindForExtension( 238 llvm::StringRef(inputs[i]).rsplit('.').second); 239 if (ik.IsUnknown()) 240 ik = Language::Unknown; 241 if (i == 0) 242 dashX = ik; 243 } 244 245 opts.inputs_.emplace_back(std::move(inputs[i]), ik); 246 } 247 248 // Set fortranForm_ based on options -ffree-form and -ffixed-form. 249 if (const auto *arg = args.getLastArg(clang::driver::options::OPT_ffixed_form, 250 clang::driver::options::OPT_ffree_form)) { 251 opts.fortranForm_ = 252 arg->getOption().matches(clang::driver::options::OPT_ffixed_form) 253 ? FortranForm::FixedForm 254 : FortranForm::FreeForm; 255 } 256 257 // Set fixedFormColumns_ based on -ffixed-line-length=<value> 258 if (const auto *arg = 259 args.getLastArg(clang::driver::options::OPT_ffixed_line_length_EQ)) { 260 llvm::StringRef argValue = llvm::StringRef(arg->getValue()); 261 std::int64_t columns = -1; 262 if (argValue == "none") { 263 columns = 0; 264 } else if (argValue.getAsInteger(/*Radix=*/10, columns)) { 265 columns = -1; 266 } 267 if (columns < 0) { 268 diags.Report(clang::diag::err_drv_negative_columns) 269 << arg->getOption().getName() << arg->getValue(); 270 } else if (columns == 0) { 271 opts.fixedFormColumns_ = 1000000; 272 } else if (columns < 7) { 273 diags.Report(clang::diag::err_drv_small_columns) 274 << arg->getOption().getName() << arg->getValue() << "7"; 275 } else { 276 opts.fixedFormColumns_ = columns; 277 } 278 } 279 280 if (const llvm::opt::Arg *arg = 281 args.getLastArg(clang::driver::options::OPT_fimplicit_none, 282 clang::driver::options::OPT_fno_implicit_none)) { 283 opts.features_.Enable( 284 Fortran::common::LanguageFeature::ImplicitNoneTypeAlways, 285 arg->getOption().matches(clang::driver::options::OPT_fimplicit_none)); 286 } 287 if (const llvm::opt::Arg *arg = 288 args.getLastArg(clang::driver::options::OPT_fbackslash, 289 clang::driver::options::OPT_fno_backslash)) { 290 opts.features_.Enable(Fortran::common::LanguageFeature::BackslashEscapes, 291 arg->getOption().matches(clang::driver::options::OPT_fbackslash)); 292 } 293 if (const llvm::opt::Arg *arg = 294 args.getLastArg(clang::driver::options::OPT_flogical_abbreviations, 295 clang::driver::options::OPT_fno_logical_abbreviations)) { 296 opts.features_.Enable( 297 Fortran::common::LanguageFeature::LogicalAbbreviations, 298 arg->getOption().matches( 299 clang::driver::options::OPT_flogical_abbreviations)); 300 } 301 if (const llvm::opt::Arg *arg = 302 args.getLastArg(clang::driver::options::OPT_fxor_operator, 303 clang::driver::options::OPT_fno_xor_operator)) { 304 opts.features_.Enable(Fortran::common::LanguageFeature::XOROperator, 305 arg->getOption().matches(clang::driver::options::OPT_fxor_operator)); 306 } 307 if (args.hasArg( 308 clang::driver::options::OPT_falternative_parameter_statement)) { 309 opts.features_.Enable(Fortran::common::LanguageFeature::OldStyleParameter); 310 } 311 if (const llvm::opt::Arg *arg = 312 args.getLastArg(clang::driver::options::OPT_finput_charset_EQ)) { 313 llvm::StringRef argValue = arg->getValue(); 314 if (argValue == "utf-8") { 315 opts.encoding_ = Fortran::parser::Encoding::UTF_8; 316 } else if (argValue == "latin-1") { 317 opts.encoding_ = Fortran::parser::Encoding::LATIN_1; 318 } else { 319 diags.Report(clang::diag::err_drv_invalid_value) 320 << arg->getAsString(args) << argValue; 321 } 322 } 323 324 setUpFrontendBasedOnAction(opts); 325 opts.dashX_ = dashX; 326 327 return diags.getNumErrors() == numErrorsBefore; 328 } 329 330 // Generate the path to look for intrinsic modules 331 static std::string getIntrinsicDir() { 332 // TODO: Find a system independent API 333 llvm::SmallString<128> driverPath; 334 driverPath.assign(llvm::sys::fs::getMainExecutable(nullptr, nullptr)); 335 llvm::sys::path::remove_filename(driverPath); 336 driverPath.append("/../include/flang/"); 337 return std::string(driverPath); 338 } 339 340 /// Parses all preprocessor input arguments and populates the preprocessor 341 /// options accordingly. 342 /// 343 /// \param [in] opts The preprocessor options instance 344 /// \param [out] args The list of input arguments 345 static void parsePreprocessorArgs( 346 Fortran::frontend::PreprocessorOptions &opts, llvm::opt::ArgList &args) { 347 // Add macros from the command line. 348 for (const auto *currentArg : args.filtered( 349 clang::driver::options::OPT_D, clang::driver::options::OPT_U)) { 350 if (currentArg->getOption().matches(clang::driver::options::OPT_D)) { 351 opts.addMacroDef(currentArg->getValue()); 352 } else { 353 opts.addMacroUndef(currentArg->getValue()); 354 } 355 } 356 357 // Add the ordered list of -I's. 358 for (const auto *currentArg : args.filtered(clang::driver::options::OPT_I)) 359 opts.searchDirectoriesFromDashI.emplace_back(currentArg->getValue()); 360 361 // Prepend the ordered list of -intrinsic-modules-path 362 // to the default location to search. 363 for (const auto *currentArg : 364 args.filtered(clang::driver::options::OPT_fintrinsic_modules_path)) 365 opts.searchDirectoriesFromIntrModPath.emplace_back(currentArg->getValue()); 366 367 // -cpp/-nocpp 368 if (const auto *currentArg = args.getLastArg( 369 clang::driver::options::OPT_cpp, clang::driver::options::OPT_nocpp)) 370 opts.macrosFlag_ = 371 (currentArg->getOption().matches(clang::driver::options::OPT_cpp)) 372 ? PPMacrosFlag::Include 373 : PPMacrosFlag::Exclude; 374 } 375 376 /// Parses all semantic related arguments and populates the variables 377 /// options accordingly. Returns false if new errors are generated. 378 static bool parseSemaArgs(CompilerInvocation &res, llvm::opt::ArgList &args, 379 clang::DiagnosticsEngine &diags) { 380 unsigned numErrorsBefore = diags.getNumErrors(); 381 382 // -J/module-dir option 383 auto moduleDirList = 384 args.getAllArgValues(clang::driver::options::OPT_module_dir); 385 // User can only specify -J/-module-dir once 386 // https://gcc.gnu.org/onlinedocs/gfortran/Directory-Options.html 387 if (moduleDirList.size() > 1) { 388 const unsigned diagID = 389 diags.getCustomDiagID(clang::DiagnosticsEngine::Error, 390 "Only one '-module-dir/-J' option allowed"); 391 diags.Report(diagID); 392 } 393 if (moduleDirList.size() == 1) 394 res.SetModuleDir(moduleDirList[0]); 395 396 // -fdebug-module-writer option 397 if (args.hasArg(clang::driver::options::OPT_fdebug_module_writer)) { 398 res.SetDebugModuleDir(true); 399 } 400 401 // -module-suffix 402 if (const auto *moduleSuffix = 403 args.getLastArg(clang::driver::options::OPT_module_suffix)) { 404 res.SetModuleFileSuffix(moduleSuffix->getValue()); 405 } 406 407 return diags.getNumErrors() == numErrorsBefore; 408 } 409 410 /// Parses all diagnostics related arguments and populates the variables 411 /// options accordingly. Returns false if new errors are generated. 412 static bool parseDiagArgs(CompilerInvocation &res, llvm::opt::ArgList &args, 413 clang::DiagnosticsEngine &diags) { 414 unsigned numErrorsBefore = diags.getNumErrors(); 415 416 // -Werror option 417 // TODO: Currently throws a Diagnostic for anything other than -W<error>, 418 // this has to change when other -W<opt>'s are supported. 419 if (args.hasArg(clang::driver::options::OPT_W_Joined)) { 420 if (args.getLastArgValue(clang::driver::options::OPT_W_Joined) 421 .equals("error")) { 422 res.SetWarnAsErr(true); 423 } else { 424 const unsigned diagID = 425 diags.getCustomDiagID(clang::DiagnosticsEngine::Error, 426 "Only `-Werror` is supported currently."); 427 diags.Report(diagID); 428 } 429 } 430 431 return diags.getNumErrors() == numErrorsBefore; 432 } 433 434 /// Parses all Dialect related arguments and populates the variables 435 /// options accordingly. Returns false if new errors are generated. 436 static bool parseDialectArgs(CompilerInvocation &res, llvm::opt::ArgList &args, 437 clang::DiagnosticsEngine &diags) { 438 unsigned numErrorsBefore = diags.getNumErrors(); 439 440 // -fdefault* family 441 if (args.hasArg(clang::driver::options::OPT_fdefault_real_8)) { 442 res.defaultKinds().set_defaultRealKind(8); 443 res.defaultKinds().set_doublePrecisionKind(16); 444 } 445 if (args.hasArg(clang::driver::options::OPT_fdefault_integer_8)) { 446 res.defaultKinds().set_defaultIntegerKind(8); 447 res.defaultKinds().set_subscriptIntegerKind(8); 448 res.defaultKinds().set_sizeIntegerKind(8); 449 } 450 if (args.hasArg(clang::driver::options::OPT_fdefault_double_8)) { 451 if (!args.hasArg(clang::driver::options::OPT_fdefault_real_8)) { 452 // -fdefault-double-8 has to be used with -fdefault-real-8 453 // to be compatible with gfortran 454 const unsigned diagID = 455 diags.getCustomDiagID(clang::DiagnosticsEngine::Error, 456 "Use of `-fdefault-double-8` requires `-fdefault-real-8`"); 457 diags.Report(diagID); 458 } 459 // https://gcc.gnu.org/onlinedocs/gfortran/Fortran-Dialect-Options.html 460 res.defaultKinds().set_doublePrecisionKind(8); 461 } 462 if (args.hasArg(clang::driver::options::OPT_flarge_sizes)) 463 res.defaultKinds().set_sizeIntegerKind(8); 464 465 // -fopenmp and -fopenacc 466 if (args.hasArg(clang::driver::options::OPT_fopenacc)) { 467 res.frontendOpts().features_.Enable( 468 Fortran::common::LanguageFeature::OpenACC); 469 } 470 if (args.hasArg(clang::driver::options::OPT_fopenmp)) { 471 res.frontendOpts().features_.Enable( 472 Fortran::common::LanguageFeature::OpenMP); 473 } 474 475 // -pedantic 476 if (args.hasArg(clang::driver::options::OPT_pedantic)) { 477 res.set_EnableConformanceChecks(); 478 } 479 // -std=f2018 (currently this implies -pedantic) 480 // TODO: Set proper options when more fortran standards 481 // are supported. 482 if (args.hasArg(clang::driver::options::OPT_std_EQ)) { 483 auto standard = args.getLastArgValue(clang::driver::options::OPT_std_EQ); 484 // We only allow f2018 as the given standard 485 if (standard.equals("f2018")) { 486 res.set_EnableConformanceChecks(); 487 } else { 488 const unsigned diagID = 489 diags.getCustomDiagID(clang::DiagnosticsEngine::Error, 490 "Only -std=f2018 is allowed currently."); 491 diags.Report(diagID); 492 } 493 } 494 return diags.getNumErrors() == numErrorsBefore; 495 } 496 497 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &res, 498 llvm::ArrayRef<const char *> commandLineArgs, 499 clang::DiagnosticsEngine &diags) { 500 501 bool success = true; 502 503 // Parse the arguments 504 const llvm::opt::OptTable &opts = clang::driver::getDriverOptTable(); 505 const unsigned includedFlagsBitmask = clang::driver::options::FC1Option; 506 unsigned missingArgIndex, missingArgCount; 507 llvm::opt::InputArgList args = opts.ParseArgs( 508 commandLineArgs, missingArgIndex, missingArgCount, includedFlagsBitmask); 509 510 // Check for missing argument error. 511 if (missingArgCount) { 512 diags.Report(clang::diag::err_drv_missing_argument) 513 << args.getArgString(missingArgIndex) << missingArgCount; 514 success = false; 515 } 516 517 // Issue errors on unknown arguments 518 for (const auto *a : args.filtered(clang::driver::options::OPT_UNKNOWN)) { 519 auto argString = a->getAsString(args); 520 std::string nearest; 521 if (opts.findNearest(argString, nearest, includedFlagsBitmask) > 1) 522 diags.Report(clang::diag::err_drv_unknown_argument) << argString; 523 else 524 diags.Report(clang::diag::err_drv_unknown_argument_with_suggestion) 525 << argString << nearest; 526 success = false; 527 } 528 529 success &= ParseFrontendArgs(res.frontendOpts(), args, diags); 530 parsePreprocessorArgs(res.preprocessorOpts(), args); 531 success &= parseSemaArgs(res, args, diags); 532 success &= parseDialectArgs(res, args, diags); 533 success &= parseDiagArgs(res, args, diags); 534 535 return success; 536 } 537 538 void CompilerInvocation::collectMacroDefinitions() { 539 auto &ppOpts = this->preprocessorOpts(); 540 541 for (unsigned i = 0, n = ppOpts.macros.size(); i != n; ++i) { 542 llvm::StringRef macro = ppOpts.macros[i].first; 543 bool isUndef = ppOpts.macros[i].second; 544 545 std::pair<llvm::StringRef, llvm::StringRef> macroPair = macro.split('='); 546 llvm::StringRef macroName = macroPair.first; 547 llvm::StringRef macroBody = macroPair.second; 548 549 // For an #undef'd macro, we only care about the name. 550 if (isUndef) { 551 parserOpts_.predefinitions.emplace_back( 552 macroName.str(), std::optional<std::string>{}); 553 continue; 554 } 555 556 // For a #define'd macro, figure out the actual definition. 557 if (macroName.size() == macro.size()) 558 macroBody = "1"; 559 else { 560 // Note: GCC drops anything following an end-of-line character. 561 llvm::StringRef::size_type End = macroBody.find_first_of("\n\r"); 562 macroBody = macroBody.substr(0, End); 563 } 564 parserOpts_.predefinitions.emplace_back( 565 macroName, std::optional<std::string>(macroBody.str())); 566 } 567 } 568 569 void CompilerInvocation::SetDefaultFortranOpts() { 570 auto &fortranOptions = fortranOpts(); 571 572 // These defaults are based on the defaults in f18/f18.cpp. 573 std::vector<std::string> searchDirectories{"."s}; 574 fortranOptions.searchDirectories = searchDirectories; 575 fortranOptions.isFixedForm = false; 576 } 577 578 // TODO: When expanding this method, consider creating a dedicated API for 579 // this. Also at some point we will need to differentiate between different 580 // targets and add dedicated predefines for each. 581 void CompilerInvocation::setDefaultPredefinitions() { 582 auto &fortranOptions = fortranOpts(); 583 const auto &frontendOptions = frontendOpts(); 584 585 // Populate the macro list with version numbers and other predefinitions. 586 fortranOptions.predefinitions.emplace_back("__flang__", "1"); 587 fortranOptions.predefinitions.emplace_back( 588 "__flang_major__", FLANG_VERSION_MAJOR_STRING); 589 fortranOptions.predefinitions.emplace_back( 590 "__flang_minor__", FLANG_VERSION_MINOR_STRING); 591 fortranOptions.predefinitions.emplace_back( 592 "__flang_patchlevel__", FLANG_VERSION_PATCHLEVEL_STRING); 593 594 // Add predefinitions based on extensions enabled 595 if (frontendOptions.features_.IsEnabled( 596 Fortran::common::LanguageFeature::OpenACC)) { 597 fortranOptions.predefinitions.emplace_back("_OPENACC", "202011"); 598 } 599 if (frontendOptions.features_.IsEnabled( 600 Fortran::common::LanguageFeature::OpenMP)) { 601 fortranOptions.predefinitions.emplace_back("_OPENMP", "201511"); 602 } 603 } 604 605 void CompilerInvocation::setFortranOpts() { 606 auto &fortranOptions = fortranOpts(); 607 const auto &frontendOptions = frontendOpts(); 608 const auto &preprocessorOptions = preprocessorOpts(); 609 auto &moduleDirJ = moduleDir(); 610 611 if (frontendOptions.fortranForm_ != FortranForm::Unknown) { 612 fortranOptions.isFixedForm = 613 frontendOptions.fortranForm_ == FortranForm::FixedForm; 614 } 615 fortranOptions.fixedFormColumns = frontendOptions.fixedFormColumns_; 616 617 fortranOptions.features = frontendOptions.features_; 618 fortranOptions.encoding = frontendOptions.encoding_; 619 620 // Adding search directories specified by -I 621 fortranOptions.searchDirectories.insert( 622 fortranOptions.searchDirectories.end(), 623 preprocessorOptions.searchDirectoriesFromDashI.begin(), 624 preprocessorOptions.searchDirectoriesFromDashI.end()); 625 626 // Add the ordered list of -intrinsic-modules-path 627 fortranOptions.searchDirectories.insert( 628 fortranOptions.searchDirectories.end(), 629 preprocessorOptions.searchDirectoriesFromIntrModPath.begin(), 630 preprocessorOptions.searchDirectoriesFromIntrModPath.end()); 631 632 // Add the default intrinsic module directory at the end 633 fortranOptions.searchDirectories.emplace_back(getIntrinsicDir()); 634 635 // Add the directory supplied through -J/-module-dir to the list of search 636 // directories 637 if (moduleDirJ.compare(".") != 0) 638 fortranOptions.searchDirectories.emplace_back(moduleDirJ); 639 640 if (frontendOptions.instrumentedParse_) 641 fortranOptions.instrumentedParse = true; 642 643 if (frontendOptions.needProvenanceRangeToCharBlockMappings_) 644 fortranOptions.needProvenanceRangeToCharBlockMappings = true; 645 646 if (enableConformanceChecks()) { 647 fortranOptions.features.WarnOnAllNonstandard(); 648 } 649 } 650 651 void CompilerInvocation::setSemanticsOpts( 652 Fortran::parser::AllCookedSources &allCookedSources) { 653 const auto &fortranOptions = fortranOpts(); 654 655 semanticsContext_ = std::make_unique<semantics::SemanticsContext>( 656 defaultKinds(), fortranOptions.features, allCookedSources); 657 658 semanticsContext_->set_moduleDirectory(moduleDir()) 659 .set_searchDirectories(fortranOptions.searchDirectories) 660 .set_warnOnNonstandardUsage(enableConformanceChecks()) 661 .set_warningsAreErrors(warnAsErr()) 662 .set_moduleFileSuffix(moduleFileSuffix()); 663 } 664