xref: /llvm-project/flang/lib/Frontend/CompilerInvocation.cpp (revision 85b86c6f43ab50ba70571ed49da7e81f7d52ffd2)
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.needProvenanceRangeToCharBlockMappings_ = true;
100 }
101 
102 static InputKind ParseFrontendArgs(FrontendOptions &opts,
103     llvm::opt::ArgList &args, clang::DiagnosticsEngine &diags) {
104 
105   // By default the frontend driver creates a ParseSyntaxOnly action.
106   opts.programAction_ = ParseSyntaxOnly;
107 
108   // Identify the action (i.e. opts.ProgramAction)
109   if (const llvm::opt::Arg *a =
110           args.getLastArg(clang::driver::options::OPT_Action_Group)) {
111     switch (a->getOption().getID()) {
112     default: {
113       llvm_unreachable("Invalid option in group!");
114     }
115     case clang::driver::options::OPT_test_io:
116       opts.programAction_ = InputOutputTest;
117       break;
118     case clang::driver::options::OPT_E:
119       opts.programAction_ = PrintPreprocessedInput;
120       break;
121     case clang::driver::options::OPT_fsyntax_only:
122       opts.programAction_ = ParseSyntaxOnly;
123       break;
124     case clang::driver::options::OPT_emit_obj:
125       opts.programAction_ = EmitObj;
126       break;
127     case clang::driver::options::OPT_fdebug_unparse:
128       opts.programAction_ = DebugUnparse;
129       break;
130     case clang::driver::options::OPT_fdebug_unparse_with_symbols:
131       opts.programAction_ = DebugUnparseWithSymbols;
132       break;
133     case clang::driver::options::OPT_fdebug_dump_symbols:
134       opts.programAction_ = DebugDumpSymbols;
135       break;
136     case clang::driver::options::OPT_fdebug_dump_parse_tree:
137       opts.programAction_ = DebugDumpParseTree;
138       break;
139     case clang::driver::options::OPT_fdebug_dump_provenance:
140       opts.programAction_ = DebugDumpProvenance;
141       break;
142     case clang::driver::options::OPT_fdebug_dump_parsing_log:
143       opts.programAction_ = DebugDumpParsingLog;
144       break;
145     case clang::driver::options::OPT_fdebug_measure_parse_tree:
146       opts.programAction_ = DebugMeasureParseTree;
147       break;
148     case clang::driver::options::OPT_fdebug_pre_fir_tree:
149       opts.programAction_ = DebugPreFIRTree;
150       break;
151     case clang::driver::options::OPT_fget_symbols_sources:
152       opts.programAction_ = GetSymbolsSources;
153       break;
154 
155       // TODO:
156       // case calng::driver::options::OPT_emit_llvm:
157       // case clang::driver::options::OPT_emit_llvm_only:
158       // case clang::driver::options::OPT_emit_codegen_only:
159       // case clang::driver::options::OPT_emit_module:
160       // (...)
161     }
162   }
163 
164   opts.outputFile_ = args.getLastArgValue(clang::driver::options::OPT_o);
165   opts.showHelp_ = args.hasArg(clang::driver::options::OPT_help);
166   opts.showVersion_ = args.hasArg(clang::driver::options::OPT_version);
167 
168   // Get the input kind (from the value passed via `-x`)
169   InputKind dashX(Language::Unknown);
170   if (const llvm::opt::Arg *a =
171           args.getLastArg(clang::driver::options::OPT_x)) {
172     llvm::StringRef XValue = a->getValue();
173     // Principal languages.
174     dashX = llvm::StringSwitch<InputKind>(XValue)
175                 .Case("f90", Language::Fortran)
176                 .Default(Language::Unknown);
177 
178     // Some special cases cannot be combined with suffixes.
179     if (dashX.IsUnknown())
180       dashX = llvm::StringSwitch<InputKind>(XValue)
181                   .Case("ir", Language::LLVM_IR)
182                   .Default(Language::Unknown);
183 
184     if (dashX.IsUnknown())
185       diags.Report(clang::diag::err_drv_invalid_value)
186           << a->getAsString(args) << a->getValue();
187   }
188 
189   // Collect the input files and save them in our instance of FrontendOptions.
190   std::vector<std::string> inputs =
191       args.getAllArgValues(clang::driver::options::OPT_INPUT);
192   opts.inputs_.clear();
193   if (inputs.empty())
194     // '-' is the default input if none is given.
195     inputs.push_back("-");
196   for (unsigned i = 0, e = inputs.size(); i != e; ++i) {
197     InputKind ik = dashX;
198     if (ik.IsUnknown()) {
199       ik = FrontendOptions::GetInputKindForExtension(
200           llvm::StringRef(inputs[i]).rsplit('.').second);
201       if (ik.IsUnknown())
202         ik = Language::Unknown;
203       if (i == 0)
204         dashX = ik;
205     }
206 
207     opts.inputs_.emplace_back(std::move(inputs[i]), ik);
208   }
209 
210   // Set fortranForm_ based on options -ffree-form and -ffixed-form.
211   if (const auto *arg = args.getLastArg(clang::driver::options::OPT_ffixed_form,
212           clang::driver::options::OPT_ffree_form)) {
213     opts.fortranForm_ =
214         arg->getOption().matches(clang::driver::options::OPT_ffixed_form)
215         ? FortranForm::FixedForm
216         : FortranForm::FreeForm;
217   }
218 
219   // Set fixedFormColumns_ based on -ffixed-line-length=<value>
220   if (const auto *arg =
221           args.getLastArg(clang::driver::options::OPT_ffixed_line_length_EQ)) {
222     llvm::StringRef argValue = llvm::StringRef(arg->getValue());
223     std::int64_t columns = -1;
224     if (argValue == "none") {
225       columns = 0;
226     } else if (argValue.getAsInteger(/*Radix=*/10, columns)) {
227       columns = -1;
228     }
229     if (columns < 0) {
230       diags.Report(clang::diag::err_drv_invalid_value_with_suggestion)
231           << arg->getOption().getName() << arg->getValue()
232           << "value must be 'none' or a non-negative integer";
233     } else if (columns == 0) {
234       opts.fixedFormColumns_ = 1000000;
235     } else if (columns < 7) {
236       diags.Report(clang::diag::err_drv_invalid_value_with_suggestion)
237           << arg->getOption().getName() << arg->getValue()
238           << "value must be at least seven";
239     } else {
240       opts.fixedFormColumns_ = columns;
241     }
242   }
243 
244   if (const llvm::opt::Arg *arg =
245           args.getLastArg(clang::driver::options::OPT_fimplicit_none,
246               clang::driver::options::OPT_fno_implicit_none)) {
247     opts.features_.Enable(
248         Fortran::common::LanguageFeature::ImplicitNoneTypeAlways,
249         arg->getOption().matches(clang::driver::options::OPT_fimplicit_none));
250   }
251   if (const llvm::opt::Arg *arg =
252           args.getLastArg(clang::driver::options::OPT_fbackslash,
253               clang::driver::options::OPT_fno_backslash)) {
254     opts.features_.Enable(Fortran::common::LanguageFeature::BackslashEscapes,
255         arg->getOption().matches(clang::driver::options::OPT_fbackslash));
256   }
257   if (const llvm::opt::Arg *arg =
258           args.getLastArg(clang::driver::options::OPT_flogical_abbreviations,
259               clang::driver::options::OPT_fno_logical_abbreviations)) {
260     opts.features_.Enable(
261         Fortran::common::LanguageFeature::LogicalAbbreviations,
262         arg->getOption().matches(
263             clang::driver::options::OPT_flogical_abbreviations));
264   }
265   if (const llvm::opt::Arg *arg =
266           args.getLastArg(clang::driver::options::OPT_fxor_operator,
267               clang::driver::options::OPT_fno_xor_operator)) {
268     opts.features_.Enable(Fortran::common::LanguageFeature::XOROperator,
269         arg->getOption().matches(clang::driver::options::OPT_fxor_operator));
270   }
271   if (args.hasArg(
272           clang::driver::options::OPT_falternative_parameter_statement)) {
273     opts.features_.Enable(Fortran::common::LanguageFeature::OldStyleParameter);
274   }
275   if (const llvm::opt::Arg *arg =
276           args.getLastArg(clang::driver::options::OPT_finput_charset_EQ)) {
277     llvm::StringRef argValue = arg->getValue();
278     if (argValue == "utf-8") {
279       opts.encoding_ = Fortran::parser::Encoding::UTF_8;
280     } else if (argValue == "latin-1") {
281       opts.encoding_ = Fortran::parser::Encoding::LATIN_1;
282     } else {
283       diags.Report(clang::diag::err_drv_invalid_value)
284           << arg->getAsString(args) << argValue;
285     }
286   }
287 
288   setUpFrontendBasedOnAction(opts);
289 
290   return dashX;
291 }
292 
293 // Generate the path to look for intrinsic modules
294 static std::string getIntrinsicDir() {
295   // TODO: Find a system independent API
296   llvm::SmallString<128> driverPath;
297   driverPath.assign(llvm::sys::fs::getMainExecutable(nullptr, nullptr));
298   llvm::sys::path::remove_filename(driverPath);
299   driverPath.append("/../include/flang/");
300   return std::string(driverPath);
301 }
302 
303 /// Parses all preprocessor input arguments and populates the preprocessor
304 /// options accordingly.
305 ///
306 /// \param [in] opts The preprocessor options instance
307 /// \param [out] args The list of input arguments
308 static void parsePreprocessorArgs(
309     Fortran::frontend::PreprocessorOptions &opts, llvm::opt::ArgList &args) {
310   // Add macros from the command line.
311   for (const auto *currentArg : args.filtered(
312            clang::driver::options::OPT_D, clang::driver::options::OPT_U)) {
313     if (currentArg->getOption().matches(clang::driver::options::OPT_D)) {
314       opts.addMacroDef(currentArg->getValue());
315     } else {
316       opts.addMacroUndef(currentArg->getValue());
317     }
318   }
319 
320   // Add the ordered list of -I's.
321   for (const auto *currentArg : args.filtered(clang::driver::options::OPT_I))
322     opts.searchDirectoriesFromDashI.emplace_back(currentArg->getValue());
323 
324   // Prepend the ordered list of -intrinsic-modules-path
325   // to the default location to search.
326   for (const auto *currentArg :
327       args.filtered(clang::driver::options::OPT_fintrinsic_modules_path))
328     opts.searchDirectoriesFromIntrModPath.emplace_back(currentArg->getValue());
329 
330   // -cpp/-nocpp
331   if (const auto *currentArg = args.getLastArg(
332           clang::driver::options::OPT_cpp, clang::driver::options::OPT_nocpp))
333     opts.macrosFlag_ =
334         (currentArg->getOption().matches(clang::driver::options::OPT_cpp))
335         ? PPMacrosFlag::Include
336         : PPMacrosFlag::Exclude;
337 }
338 
339 /// Parses all semantic related arguments and populates the variables
340 /// options accordingly.
341 static void parseSemaArgs(CompilerInvocation &res, llvm::opt::ArgList &args,
342     clang::DiagnosticsEngine &diags) {
343 
344   // -J/module-dir option
345   auto moduleDirList =
346       args.getAllArgValues(clang::driver::options::OPT_module_dir);
347   // User can only specify -J/-module-dir once
348   // https://gcc.gnu.org/onlinedocs/gfortran/Directory-Options.html
349   if (moduleDirList.size() > 1) {
350     const unsigned diagID =
351         diags.getCustomDiagID(clang::DiagnosticsEngine::Error,
352             "Only one '-module-dir/-J' option allowed");
353     diags.Report(diagID);
354   }
355   if (moduleDirList.size() == 1)
356     res.SetModuleDir(moduleDirList[0]);
357 
358   // -fdebug-module-writer option
359   if (args.hasArg(clang::driver::options::OPT_fdebug_module_writer)) {
360     res.SetDebugModuleDir(true);
361   }
362 }
363 
364 /// Parses all diagnostics related arguments and populates the variables
365 /// options accordingly.
366 static void parseDiagArgs(CompilerInvocation &res, llvm::opt::ArgList &args,
367     clang::DiagnosticsEngine &diags) {
368   // -Werror option
369   // TODO: Currently throws a Diagnostic for anything other than -W<error>,
370   // this has to change when other -W<opt>'s are supported.
371   if (args.hasArg(clang::driver::options::OPT_W_Joined)) {
372     if (args.getLastArgValue(clang::driver::options::OPT_W_Joined)
373             .equals("error")) {
374       res.SetWarnAsErr(true);
375     } else {
376       const unsigned diagID =
377           diags.getCustomDiagID(clang::DiagnosticsEngine::Error,
378               "Only `-Werror` is supported currently.");
379       diags.Report(diagID);
380     }
381   }
382 }
383 
384 /// Parses all Dialect related arguments and populates the variables
385 /// options accordingly.
386 static void parseDialectArgs(CompilerInvocation &res, llvm::opt::ArgList &args,
387     clang::DiagnosticsEngine &diags) {
388 
389   // -fdefault* family
390   if (args.hasArg(clang::driver::options::OPT_fdefault_real_8)) {
391     res.defaultKinds().set_defaultRealKind(8);
392     res.defaultKinds().set_doublePrecisionKind(16);
393   }
394   if (args.hasArg(clang::driver::options::OPT_fdefault_integer_8)) {
395     res.defaultKinds().set_defaultIntegerKind(8);
396     res.defaultKinds().set_subscriptIntegerKind(8);
397     res.defaultKinds().set_sizeIntegerKind(8);
398   }
399   if (args.hasArg(clang::driver::options::OPT_fdefault_double_8)) {
400     if (!args.hasArg(clang::driver::options::OPT_fdefault_real_8)) {
401       // -fdefault-double-8 has to be used with -fdefault-real-8
402       // to be compatible with gfortran
403       const unsigned diagID =
404           diags.getCustomDiagID(clang::DiagnosticsEngine::Error,
405               "Use of `-fdefault-double-8` requires `-fdefault-real-8`");
406       diags.Report(diagID);
407     }
408     // https://gcc.gnu.org/onlinedocs/gfortran/Fortran-Dialect-Options.html
409     res.defaultKinds().set_doublePrecisionKind(8);
410   }
411   if (args.hasArg(clang::driver::options::OPT_flarge_sizes))
412     res.defaultKinds().set_sizeIntegerKind(8);
413 
414   // -fopenmp and -fopenacc
415   if (args.hasArg(clang::driver::options::OPT_fopenacc)) {
416     res.frontendOpts().features_.Enable(
417         Fortran::common::LanguageFeature::OpenACC);
418   }
419   if (args.hasArg(clang::driver::options::OPT_fopenmp)) {
420     res.frontendOpts().features_.Enable(
421         Fortran::common::LanguageFeature::OpenMP);
422   }
423 
424   // -pedantic
425   if (args.hasArg(clang::driver::options::OPT_pedantic)) {
426     res.set_EnableConformanceChecks();
427   }
428   // -std=f2018 (currently this implies -pedantic)
429   // TODO: Set proper options when more fortran standards
430   // are supported.
431   if (args.hasArg(clang::driver::options::OPT_std_EQ)) {
432     auto standard = args.getLastArgValue(clang::driver::options::OPT_std_EQ);
433     // We only allow f2018 as the given standard
434     if (standard.equals("f2018")) {
435       res.set_EnableConformanceChecks();
436     } else {
437       const unsigned diagID =
438           diags.getCustomDiagID(clang::DiagnosticsEngine::Error,
439               "Only -std=f2018 is allowed currently.");
440       diags.Report(diagID);
441     }
442   }
443   return;
444 }
445 
446 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &res,
447     llvm::ArrayRef<const char *> commandLineArgs,
448     clang::DiagnosticsEngine &diags) {
449 
450   bool success = true;
451 
452   // Parse the arguments
453   const llvm::opt::OptTable &opts = clang::driver::getDriverOptTable();
454   const unsigned includedFlagsBitmask = clang::driver::options::FC1Option;
455   unsigned missingArgIndex, missingArgCount;
456   llvm::opt::InputArgList args = opts.ParseArgs(
457       commandLineArgs, missingArgIndex, missingArgCount, includedFlagsBitmask);
458 
459   // Issue errors on unknown arguments
460   for (const auto *a : args.filtered(clang::driver::options::OPT_UNKNOWN)) {
461     auto argString = a->getAsString(args);
462     std::string nearest;
463     if (opts.findNearest(argString, nearest, includedFlagsBitmask) > 1)
464       diags.Report(clang::diag::err_drv_unknown_argument) << argString;
465     else
466       diags.Report(clang::diag::err_drv_unknown_argument_with_suggestion)
467           << argString << nearest;
468     success = false;
469   }
470 
471   // Parse the frontend args
472   ParseFrontendArgs(res.frontendOpts(), args, diags);
473   // Parse the preprocessor args
474   parsePreprocessorArgs(res.preprocessorOpts(), args);
475   // Parse semantic args
476   parseSemaArgs(res, args, diags);
477   // Parse dialect arguments
478   parseDialectArgs(res, args, diags);
479   // Parse diagnostic arguments
480   parseDiagArgs(res, args, diags);
481 
482   return success;
483 }
484 
485 void CompilerInvocation::collectMacroDefinitions() {
486   auto &ppOpts = this->preprocessorOpts();
487 
488   for (unsigned i = 0, n = ppOpts.macros.size(); i != n; ++i) {
489     llvm::StringRef macro = ppOpts.macros[i].first;
490     bool isUndef = ppOpts.macros[i].second;
491 
492     std::pair<llvm::StringRef, llvm::StringRef> macroPair = macro.split('=');
493     llvm::StringRef macroName = macroPair.first;
494     llvm::StringRef macroBody = macroPair.second;
495 
496     // For an #undef'd macro, we only care about the name.
497     if (isUndef) {
498       parserOpts_.predefinitions.emplace_back(
499           macroName.str(), std::optional<std::string>{});
500       continue;
501     }
502 
503     // For a #define'd macro, figure out the actual definition.
504     if (macroName.size() == macro.size())
505       macroBody = "1";
506     else {
507       // Note: GCC drops anything following an end-of-line character.
508       llvm::StringRef::size_type End = macroBody.find_first_of("\n\r");
509       macroBody = macroBody.substr(0, End);
510     }
511     parserOpts_.predefinitions.emplace_back(
512         macroName, std::optional<std::string>(macroBody.str()));
513   }
514 }
515 
516 void CompilerInvocation::SetDefaultFortranOpts() {
517   auto &fortranOptions = fortranOpts();
518 
519   // These defaults are based on the defaults in f18/f18.cpp.
520   std::vector<std::string> searchDirectories{"."s};
521   fortranOptions.searchDirectories = searchDirectories;
522   fortranOptions.isFixedForm = false;
523 }
524 
525 // TODO: When expanding this method, consider creating a dedicated API for
526 // this. Also at some point we will need to differentiate between different
527 // targets and add dedicated predefines for each.
528 void CompilerInvocation::setDefaultPredefinitions() {
529   auto &fortranOptions = fortranOpts();
530   const auto &frontendOptions = frontendOpts();
531 
532   // Populate the macro list with version numbers and other predefinitions.
533   fortranOptions.predefinitions.emplace_back("__flang__", "1");
534   fortranOptions.predefinitions.emplace_back(
535       "__flang_major__", FLANG_VERSION_MAJOR_STRING);
536   fortranOptions.predefinitions.emplace_back(
537       "__flang_minor__", FLANG_VERSION_MINOR_STRING);
538   fortranOptions.predefinitions.emplace_back(
539       "__flang_patchlevel__", FLANG_VERSION_PATCHLEVEL_STRING);
540 
541   // Add predefinitions based on extensions enabled
542   if (frontendOptions.features_.IsEnabled(
543           Fortran::common::LanguageFeature::OpenACC)) {
544     fortranOptions.predefinitions.emplace_back("_OPENACC", "202011");
545   }
546   if (frontendOptions.features_.IsEnabled(
547           Fortran::common::LanguageFeature::OpenMP)) {
548     fortranOptions.predefinitions.emplace_back("_OPENMP", "201511");
549   }
550 }
551 
552 void CompilerInvocation::setFortranOpts() {
553   auto &fortranOptions = fortranOpts();
554   const auto &frontendOptions = frontendOpts();
555   const auto &preprocessorOptions = preprocessorOpts();
556   auto &moduleDirJ = moduleDir();
557 
558   if (frontendOptions.fortranForm_ != FortranForm::Unknown) {
559     fortranOptions.isFixedForm =
560         frontendOptions.fortranForm_ == FortranForm::FixedForm;
561   }
562   fortranOptions.fixedFormColumns = frontendOptions.fixedFormColumns_;
563 
564   fortranOptions.features = frontendOptions.features_;
565   fortranOptions.encoding = frontendOptions.encoding_;
566 
567   // Adding search directories specified by -I
568   fortranOptions.searchDirectories.insert(
569       fortranOptions.searchDirectories.end(),
570       preprocessorOptions.searchDirectoriesFromDashI.begin(),
571       preprocessorOptions.searchDirectoriesFromDashI.end());
572 
573   // Add the ordered list of -intrinsic-modules-path
574   fortranOptions.searchDirectories.insert(
575       fortranOptions.searchDirectories.end(),
576       preprocessorOptions.searchDirectoriesFromIntrModPath.begin(),
577       preprocessorOptions.searchDirectoriesFromIntrModPath.end());
578 
579   //  Add the default intrinsic module directory at the end
580   fortranOptions.searchDirectories.emplace_back(getIntrinsicDir());
581 
582   // Add the directory supplied through -J/-module-dir to the list of search
583   // directories
584   if (moduleDirJ.compare(".") != 0)
585     fortranOptions.searchDirectories.emplace_back(moduleDirJ);
586 
587   if (frontendOptions.instrumentedParse_)
588     fortranOptions.instrumentedParse = true;
589 
590   if (frontendOptions.needProvenanceRangeToCharBlockMappings_)
591     fortranOptions.needProvenanceRangeToCharBlockMappings = true;
592 
593   if (enableConformanceChecks()) {
594     fortranOptions.features.WarnOnAllNonstandard();
595   }
596 }
597 
598 void CompilerInvocation::setSemanticsOpts(
599     Fortran::parser::AllCookedSources &allCookedSources) {
600   const auto &fortranOptions = fortranOpts();
601 
602   semanticsContext_ = std::make_unique<semantics::SemanticsContext>(
603       defaultKinds(), fortranOptions.features, allCookedSources);
604 
605   semanticsContext_->set_moduleDirectory(moduleDir())
606       .set_searchDirectories(fortranOptions.searchDirectories)
607       .set_warnOnNonstandardUsage(enableConformanceChecks())
608       .set_warningsAreErrors(warnAsErr());
609 }
610