llvm-project/flang/lib/Frontend/CompilerInvocation.cpp
Andrzej Warzynski 2e9439e489 [flang][driver] Add support for --target/--triple
This patch adds support for:
  * `--target` in the compiler driver (`flang-new`)
  * `--triple` in the frontend driver (`flang-new -fc1`)
The semantics of these flags are inherited from `clangDriver`, i.e.
consistent with `clang --target` and `clang -cc1 --triple`,
respectively.

A new structure is defined, `TargetOptions`, that will hold various
Frontend options related to the target. Currently, this is mostly a
placeholder that contains the target triple. In the future, it will be
used for storing e.g. the CPU to tune for or the target features to
enable.

Additionally, the following target/triple related options are enabled
[*]: `-print-effective-triple`, `-print-target-triple`. Definitions in
Options.td are updated accordingly and, to facilated testing,
`-emit-llvm` is added to the list of options available in `flang-new`
(previously it was only enabled in `flang-new -fc1`).

[*] These options were actually available before (like all other options
defined in `clangDriver`), but not included in `flang-new --help`.
Before this change, `flang-new` would just use `native` for defining the
target, so these options were of little value.

Differential Revision: https://reviews.llvm.org/D120246
2022-02-25 09:38:10 +00:00

711 lines
26 KiB
C++

//===- CompilerInvocation.cpp ---------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "flang/Frontend/CompilerInvocation.h"
#include "flang/Common/Fortran-features.h"
#include "flang/Frontend/PreprocessorOptions.h"
#include "flang/Frontend/TargetOptions.h"
#include "flang/Semantics/semantics.h"
#include "flang/Version.inc"
#include "clang/Basic/AllDiagnostics.h"
#include "clang/Basic/DiagnosticDriver.h"
#include "clang/Basic/DiagnosticOptions.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/Options.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Option/Arg.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Option/OptTable.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/FileUtilities.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/raw_ostream.h"
#include <memory>
using namespace Fortran::frontend;
//===----------------------------------------------------------------------===//
// Initialization.
//===----------------------------------------------------------------------===//
CompilerInvocationBase::CompilerInvocationBase()
: diagnosticOpts_(new clang::DiagnosticOptions()),
preprocessorOpts_(new PreprocessorOptions()) {}
CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &x)
: diagnosticOpts_(new clang::DiagnosticOptions(x.GetDiagnosticOpts())),
preprocessorOpts_(new PreprocessorOptions(x.preprocessorOpts())) {}
CompilerInvocationBase::~CompilerInvocationBase() = default;
//===----------------------------------------------------------------------===//
// Deserialization (from args)
//===----------------------------------------------------------------------===//
static bool parseShowColorsArgs(
const llvm::opt::ArgList &args, bool defaultColor) {
// Color diagnostics default to auto ("on" if terminal supports) in the driver
// but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
// Support both clang's -f[no-]color-diagnostics and gcc's
// -f[no-]diagnostics-colors[=never|always|auto].
enum {
Colors_On,
Colors_Off,
Colors_Auto
} ShowColors = defaultColor ? Colors_Auto : Colors_Off;
for (auto *a : args) {
const llvm::opt::Option &O = a->getOption();
if (O.matches(clang::driver::options::OPT_fcolor_diagnostics) ||
O.matches(clang::driver::options::OPT_fdiagnostics_color)) {
ShowColors = Colors_On;
} else if (O.matches(clang::driver::options::OPT_fno_color_diagnostics) ||
O.matches(clang::driver::options::OPT_fno_diagnostics_color)) {
ShowColors = Colors_Off;
} else if (O.matches(clang::driver::options::OPT_fdiagnostics_color_EQ)) {
llvm::StringRef value(a->getValue());
if (value == "always")
ShowColors = Colors_On;
else if (value == "never")
ShowColors = Colors_Off;
else if (value == "auto")
ShowColors = Colors_Auto;
}
}
return ShowColors == Colors_On ||
(ShowColors == Colors_Auto && llvm::sys::Process::StandardErrHasColors());
}
bool Fortran::frontend::ParseDiagnosticArgs(clang::DiagnosticOptions &opts,
llvm::opt::ArgList &args, bool defaultDiagColor) {
opts.ShowColors = parseShowColorsArgs(args, defaultDiagColor);
return true;
}
/// Parses all target input arguments and populates the target
/// options accordingly.
///
/// \param [in] opts The target options instance to update
/// \param [in] args The list of input arguments (from the compiler invocation)
static void ParseTargetArgs(TargetOptions &opts, llvm::opt::ArgList &args) {
opts.triple = args.getLastArgValue(clang::driver::options::OPT_triple);
}
// Tweak the frontend configuration based on the frontend action
static void setUpFrontendBasedOnAction(FrontendOptions &opts) {
assert(opts.programAction != Fortran::frontend::InvalidAction &&
"Fortran frontend action not set!");
if (opts.programAction == DebugDumpParsingLog)
opts.instrumentedParse = true;
if (opts.programAction == DebugDumpProvenance ||
opts.programAction == Fortran::frontend::GetDefinition)
opts.needProvenanceRangeToCharBlockMappings = true;
}
static bool ParseFrontendArgs(FrontendOptions &opts, llvm::opt::ArgList &args,
clang::DiagnosticsEngine &diags) {
unsigned numErrorsBefore = diags.getNumErrors();
// By default the frontend driver creates a ParseSyntaxOnly action.
opts.programAction = ParseSyntaxOnly;
// Treat multiple action options as an invocation error. Note that `clang
// -cc1` does accept multiple action options, but will only consider the
// rightmost one.
if (args.hasMultipleArgs(clang::driver::options::OPT_Action_Group)) {
const unsigned diagID = diags.getCustomDiagID(
clang::DiagnosticsEngine::Error, "Only one action option is allowed");
diags.Report(diagID);
return false;
}
// Identify the action (i.e. opts.ProgramAction)
if (const llvm::opt::Arg *a =
args.getLastArg(clang::driver::options::OPT_Action_Group)) {
switch (a->getOption().getID()) {
default: {
llvm_unreachable("Invalid option in group!");
}
case clang::driver::options::OPT_test_io:
opts.programAction = InputOutputTest;
break;
case clang::driver::options::OPT_E:
opts.programAction = PrintPreprocessedInput;
break;
case clang::driver::options::OPT_fsyntax_only:
opts.programAction = ParseSyntaxOnly;
break;
case clang::driver::options::OPT_emit_mlir:
opts.programAction = EmitMLIR;
break;
case clang::driver::options::OPT_emit_llvm:
opts.programAction = EmitLLVM;
break;
case clang::driver::options::OPT_emit_obj:
opts.programAction = EmitObj;
break;
case clang::driver::options::OPT_fdebug_unparse:
opts.programAction = DebugUnparse;
break;
case clang::driver::options::OPT_fdebug_unparse_no_sema:
opts.programAction = DebugUnparseNoSema;
break;
case clang::driver::options::OPT_fdebug_unparse_with_symbols:
opts.programAction = DebugUnparseWithSymbols;
break;
case clang::driver::options::OPT_fdebug_dump_symbols:
opts.programAction = DebugDumpSymbols;
break;
case clang::driver::options::OPT_fdebug_dump_parse_tree:
opts.programAction = DebugDumpParseTree;
break;
case clang::driver::options::OPT_fdebug_dump_all:
opts.programAction = DebugDumpAll;
break;
case clang::driver::options::OPT_fdebug_dump_parse_tree_no_sema:
opts.programAction = DebugDumpParseTreeNoSema;
break;
case clang::driver::options::OPT_fdebug_dump_provenance:
opts.programAction = DebugDumpProvenance;
break;
case clang::driver::options::OPT_fdebug_dump_parsing_log:
opts.programAction = DebugDumpParsingLog;
break;
case clang::driver::options::OPT_fdebug_measure_parse_tree:
opts.programAction = DebugMeasureParseTree;
break;
case clang::driver::options::OPT_fdebug_pre_fir_tree:
opts.programAction = DebugPreFIRTree;
break;
case clang::driver::options::OPT_fget_symbols_sources:
opts.programAction = GetSymbolsSources;
break;
case clang::driver::options::OPT_fget_definition:
opts.programAction = GetDefinition;
break;
case clang::driver::options::OPT_init_only:
opts.programAction = InitOnly;
break;
// TODO:
// case clang::driver::options::OPT_emit_llvm:
// case clang::driver::options::OPT_emit_llvm_only:
// case clang::driver::options::OPT_emit_codegen_only:
// case clang::driver::options::OPT_emit_module:
// (...)
}
// Parse the values provided with `-fget-definition` (there should be 3
// integers)
if (llvm::opt::OptSpecifier(a->getOption().getID()) ==
clang::driver::options::OPT_fget_definition) {
unsigned optVals[3] = {0, 0, 0};
for (unsigned i = 0; i < 3; i++) {
llvm::StringRef val = a->getValue(i);
if (val.getAsInteger(10, optVals[i])) {
// A non-integer was encountered - that's an error.
diags.Report(clang::diag::err_drv_invalid_value)
<< a->getOption().getName() << val;
break;
}
}
opts.getDefVals.line = optVals[0];
opts.getDefVals.startColumn = optVals[1];
opts.getDefVals.endColumn = optVals[2];
}
}
// Parsing -load <dsopath> option and storing shared object path
if (llvm::opt::Arg *a = args.getLastArg(clang::driver::options::OPT_load)) {
opts.plugins.push_back(a->getValue());
}
// Parsing -plugin <name> option and storing plugin name and setting action
if (const llvm::opt::Arg *a =
args.getLastArg(clang::driver::options::OPT_plugin)) {
opts.programAction = PluginAction;
opts.ActionName = a->getValue();
}
opts.outputFile = args.getLastArgValue(clang::driver::options::OPT_o);
opts.showHelp = args.hasArg(clang::driver::options::OPT_help);
opts.showVersion = args.hasArg(clang::driver::options::OPT_version);
// Get the input kind (from the value passed via `-x`)
InputKind dashX(Language::Unknown);
if (const llvm::opt::Arg *a =
args.getLastArg(clang::driver::options::OPT_x)) {
llvm::StringRef XValue = a->getValue();
// Principal languages.
dashX = llvm::StringSwitch<InputKind>(XValue)
.Case("f90", Language::Fortran)
.Default(Language::Unknown);
// Some special cases cannot be combined with suffixes.
if (dashX.IsUnknown())
dashX = llvm::StringSwitch<InputKind>(XValue)
.Case("ir", Language::LLVM_IR)
.Default(Language::Unknown);
if (dashX.IsUnknown())
diags.Report(clang::diag::err_drv_invalid_value)
<< a->getAsString(args) << a->getValue();
}
// Collect the input files and save them in our instance of FrontendOptions.
std::vector<std::string> inputs =
args.getAllArgValues(clang::driver::options::OPT_INPUT);
opts.inputs.clear();
if (inputs.empty())
// '-' is the default input if none is given.
inputs.push_back("-");
for (unsigned i = 0, e = inputs.size(); i != e; ++i) {
InputKind ik = dashX;
if (ik.IsUnknown()) {
ik = FrontendOptions::GetInputKindForExtension(
llvm::StringRef(inputs[i]).rsplit('.').second);
if (ik.IsUnknown())
ik = Language::Unknown;
if (i == 0)
dashX = ik;
}
opts.inputs.emplace_back(std::move(inputs[i]), ik);
}
// Set fortranForm based on options -ffree-form and -ffixed-form.
if (const auto *arg = args.getLastArg(clang::driver::options::OPT_ffixed_form,
clang::driver::options::OPT_ffree_form)) {
opts.fortranForm =
arg->getOption().matches(clang::driver::options::OPT_ffixed_form)
? FortranForm::FixedForm
: FortranForm::FreeForm;
}
// Set fixedFormColumns based on -ffixed-line-length=<value>
if (const auto *arg =
args.getLastArg(clang::driver::options::OPT_ffixed_line_length_EQ)) {
llvm::StringRef argValue = llvm::StringRef(arg->getValue());
std::int64_t columns = -1;
if (argValue == "none") {
columns = 0;
} else if (argValue.getAsInteger(/*Radix=*/10, columns)) {
columns = -1;
}
if (columns < 0) {
diags.Report(clang::diag::err_drv_negative_columns)
<< arg->getOption().getName() << arg->getValue();
} else if (columns == 0) {
opts.fixedFormColumns = 1000000;
} else if (columns < 7) {
diags.Report(clang::diag::err_drv_small_columns)
<< arg->getOption().getName() << arg->getValue() << "7";
} else {
opts.fixedFormColumns = columns;
}
}
// -f{no-}implicit-none
opts.features.Enable(
Fortran::common::LanguageFeature::ImplicitNoneTypeAlways,
args.hasFlag(clang::driver::options::OPT_fimplicit_none,
clang::driver::options::OPT_fno_implicit_none, false));
// -f{no-}backslash
opts.features.Enable(Fortran::common::LanguageFeature::BackslashEscapes,
args.hasFlag(clang::driver::options::OPT_fbackslash,
clang::driver::options::OPT_fno_backslash, false));
// -f{no-}logical-abbreviations
opts.features.Enable(Fortran::common::LanguageFeature::LogicalAbbreviations,
args.hasFlag(clang::driver::options::OPT_flogical_abbreviations,
clang::driver::options::OPT_fno_logical_abbreviations, false));
// -f{no-}xor-operator
opts.features.Enable(Fortran::common::LanguageFeature::XOROperator,
args.hasFlag(clang::driver::options::OPT_fxor_operator,
clang::driver::options::OPT_fno_xor_operator, false));
// -fno-automatic
if (args.hasArg(clang::driver::options::OPT_fno_automatic)) {
opts.features.Enable(Fortran::common::LanguageFeature::DefaultSave);
}
if (args.hasArg(
clang::driver::options::OPT_falternative_parameter_statement)) {
opts.features.Enable(Fortran::common::LanguageFeature::OldStyleParameter);
}
if (const llvm::opt::Arg *arg =
args.getLastArg(clang::driver::options::OPT_finput_charset_EQ)) {
llvm::StringRef argValue = arg->getValue();
if (argValue == "utf-8") {
opts.encoding = Fortran::parser::Encoding::UTF_8;
} else if (argValue == "latin-1") {
opts.encoding = Fortran::parser::Encoding::LATIN_1;
} else {
diags.Report(clang::diag::err_drv_invalid_value)
<< arg->getAsString(args) << argValue;
}
}
setUpFrontendBasedOnAction(opts);
opts.dashX = dashX;
return diags.getNumErrors() == numErrorsBefore;
}
// Generate the path to look for intrinsic modules
static std::string getIntrinsicDir() {
// TODO: Find a system independent API
llvm::SmallString<128> driverPath;
driverPath.assign(llvm::sys::fs::getMainExecutable(nullptr, nullptr));
llvm::sys::path::remove_filename(driverPath);
driverPath.append("/../include/flang/");
return std::string(driverPath);
}
/// Parses all preprocessor input arguments and populates the preprocessor
/// options accordingly.
///
/// \param [in] opts The preprocessor options instance
/// \param [out] args The list of input arguments
static void parsePreprocessorArgs(
Fortran::frontend::PreprocessorOptions &opts, llvm::opt::ArgList &args) {
// Add macros from the command line.
for (const auto *currentArg : args.filtered(
clang::driver::options::OPT_D, clang::driver::options::OPT_U)) {
if (currentArg->getOption().matches(clang::driver::options::OPT_D)) {
opts.addMacroDef(currentArg->getValue());
} else {
opts.addMacroUndef(currentArg->getValue());
}
}
// Add the ordered list of -I's.
for (const auto *currentArg : args.filtered(clang::driver::options::OPT_I))
opts.searchDirectoriesFromDashI.emplace_back(currentArg->getValue());
// Prepend the ordered list of -intrinsic-modules-path
// to the default location to search.
for (const auto *currentArg :
args.filtered(clang::driver::options::OPT_fintrinsic_modules_path))
opts.searchDirectoriesFromIntrModPath.emplace_back(currentArg->getValue());
// -cpp/-nocpp
if (const auto *currentArg = args.getLastArg(
clang::driver::options::OPT_cpp, clang::driver::options::OPT_nocpp))
opts.macrosFlag =
(currentArg->getOption().matches(clang::driver::options::OPT_cpp))
? PPMacrosFlag::Include
: PPMacrosFlag::Exclude;
opts.noReformat = args.hasArg(clang::driver::options::OPT_fno_reformat);
opts.noLineDirectives = args.hasArg(clang::driver::options::OPT_P);
}
/// Parses all semantic related arguments and populates the variables
/// options accordingly. Returns false if new errors are generated.
static bool parseSemaArgs(CompilerInvocation &res, llvm::opt::ArgList &args,
clang::DiagnosticsEngine &diags) {
unsigned numErrorsBefore = diags.getNumErrors();
// -J/module-dir option
auto moduleDirList =
args.getAllArgValues(clang::driver::options::OPT_module_dir);
// User can only specify -J/-module-dir once
// https://gcc.gnu.org/onlinedocs/gfortran/Directory-Options.html
if (moduleDirList.size() > 1) {
const unsigned diagID =
diags.getCustomDiagID(clang::DiagnosticsEngine::Error,
"Only one '-module-dir/-J' option allowed");
diags.Report(diagID);
}
if (moduleDirList.size() == 1)
res.SetModuleDir(moduleDirList[0]);
// -fdebug-module-writer option
if (args.hasArg(clang::driver::options::OPT_fdebug_module_writer)) {
res.SetDebugModuleDir(true);
}
// -module-suffix
if (const auto *moduleSuffix =
args.getLastArg(clang::driver::options::OPT_module_suffix)) {
res.SetModuleFileSuffix(moduleSuffix->getValue());
}
// -f{no-}analyzed-objects-for-unparse
res.SetUseAnalyzedObjectsForUnparse(
args.hasFlag(clang::driver::options::OPT_fanalyzed_objects_for_unparse,
clang::driver::options::OPT_fno_analyzed_objects_for_unparse, true));
return diags.getNumErrors() == numErrorsBefore;
}
/// Parses all diagnostics related arguments and populates the variables
/// options accordingly. Returns false if new errors are generated.
static bool parseDiagArgs(CompilerInvocation &res, llvm::opt::ArgList &args,
clang::DiagnosticsEngine &diags) {
unsigned numErrorsBefore = diags.getNumErrors();
// -Werror option
// TODO: Currently throws a Diagnostic for anything other than -W<error>,
// this has to change when other -W<opt>'s are supported.
if (args.hasArg(clang::driver::options::OPT_W_Joined)) {
if (args.getLastArgValue(clang::driver::options::OPT_W_Joined)
.equals("error")) {
res.SetWarnAsErr(true);
} else {
const unsigned diagID =
diags.getCustomDiagID(clang::DiagnosticsEngine::Error,
"Only `-Werror` is supported currently.");
diags.Report(diagID);
}
}
return diags.getNumErrors() == numErrorsBefore;
}
/// Parses all Dialect related arguments and populates the variables
/// options accordingly. Returns false if new errors are generated.
static bool parseDialectArgs(CompilerInvocation &res, llvm::opt::ArgList &args,
clang::DiagnosticsEngine &diags) {
unsigned numErrorsBefore = diags.getNumErrors();
// -fdefault* family
if (args.hasArg(clang::driver::options::OPT_fdefault_real_8)) {
res.defaultKinds().set_defaultRealKind(8);
res.defaultKinds().set_doublePrecisionKind(16);
}
if (args.hasArg(clang::driver::options::OPT_fdefault_integer_8)) {
res.defaultKinds().set_defaultIntegerKind(8);
res.defaultKinds().set_subscriptIntegerKind(8);
res.defaultKinds().set_sizeIntegerKind(8);
}
if (args.hasArg(clang::driver::options::OPT_fdefault_double_8)) {
if (!args.hasArg(clang::driver::options::OPT_fdefault_real_8)) {
// -fdefault-double-8 has to be used with -fdefault-real-8
// to be compatible with gfortran
const unsigned diagID =
diags.getCustomDiagID(clang::DiagnosticsEngine::Error,
"Use of `-fdefault-double-8` requires `-fdefault-real-8`");
diags.Report(diagID);
}
// https://gcc.gnu.org/onlinedocs/gfortran/Fortran-Dialect-Options.html
res.defaultKinds().set_doublePrecisionKind(8);
}
if (args.hasArg(clang::driver::options::OPT_flarge_sizes))
res.defaultKinds().set_sizeIntegerKind(8);
// -fopenmp and -fopenacc
if (args.hasArg(clang::driver::options::OPT_fopenacc)) {
res.frontendOpts().features.Enable(
Fortran::common::LanguageFeature::OpenACC);
}
if (args.hasArg(clang::driver::options::OPT_fopenmp)) {
res.frontendOpts().features.Enable(
Fortran::common::LanguageFeature::OpenMP);
}
// -pedantic
if (args.hasArg(clang::driver::options::OPT_pedantic)) {
res.set_EnableConformanceChecks();
}
// -std=f2018 (currently this implies -pedantic)
// TODO: Set proper options when more fortran standards
// are supported.
if (args.hasArg(clang::driver::options::OPT_std_EQ)) {
auto standard = args.getLastArgValue(clang::driver::options::OPT_std_EQ);
// We only allow f2018 as the given standard
if (standard.equals("f2018")) {
res.set_EnableConformanceChecks();
} else {
const unsigned diagID =
diags.getCustomDiagID(clang::DiagnosticsEngine::Error,
"Only -std=f2018 is allowed currently.");
diags.Report(diagID);
}
}
return diags.getNumErrors() == numErrorsBefore;
}
bool CompilerInvocation::CreateFromArgs(CompilerInvocation &res,
llvm::ArrayRef<const char *> commandLineArgs,
clang::DiagnosticsEngine &diags) {
bool success = true;
// Parse the arguments
const llvm::opt::OptTable &opts = clang::driver::getDriverOptTable();
const unsigned includedFlagsBitmask = clang::driver::options::FC1Option;
unsigned missingArgIndex, missingArgCount;
llvm::opt::InputArgList args = opts.ParseArgs(
commandLineArgs, missingArgIndex, missingArgCount, includedFlagsBitmask);
// Check for missing argument error.
if (missingArgCount) {
diags.Report(clang::diag::err_drv_missing_argument)
<< args.getArgString(missingArgIndex) << missingArgCount;
success = false;
}
// Issue errors on unknown arguments
for (const auto *a : args.filtered(clang::driver::options::OPT_UNKNOWN)) {
auto argString = a->getAsString(args);
std::string nearest;
if (opts.findNearest(argString, nearest, includedFlagsBitmask) > 1)
diags.Report(clang::diag::err_drv_unknown_argument) << argString;
else
diags.Report(clang::diag::err_drv_unknown_argument_with_suggestion)
<< argString << nearest;
success = false;
}
success &= ParseFrontendArgs(res.frontendOpts(), args, diags);
ParseTargetArgs(res.targetOpts(), args);
parsePreprocessorArgs(res.preprocessorOpts(), args);
success &= parseSemaArgs(res, args, diags);
success &= parseDialectArgs(res, args, diags);
success &= parseDiagArgs(res, args, diags);
return success;
}
void CompilerInvocation::CollectMacroDefinitions() {
auto &ppOpts = this->preprocessorOpts();
for (unsigned i = 0, n = ppOpts.macros.size(); i != n; ++i) {
llvm::StringRef macro = ppOpts.macros[i].first;
bool isUndef = ppOpts.macros[i].second;
std::pair<llvm::StringRef, llvm::StringRef> macroPair = macro.split('=');
llvm::StringRef macroName = macroPair.first;
llvm::StringRef macroBody = macroPair.second;
// For an #undef'd macro, we only care about the name.
if (isUndef) {
parserOpts_.predefinitions.emplace_back(
macroName.str(), std::optional<std::string>{});
continue;
}
// For a #define'd macro, figure out the actual definition.
if (macroName.size() == macro.size())
macroBody = "1";
else {
// Note: GCC drops anything following an end-of-line character.
llvm::StringRef::size_type End = macroBody.find_first_of("\n\r");
macroBody = macroBody.substr(0, End);
}
parserOpts_.predefinitions.emplace_back(
macroName, std::optional<std::string>(macroBody.str()));
}
}
void CompilerInvocation::SetDefaultFortranOpts() {
auto &fortranOptions = fortranOpts();
std::vector<std::string> searchDirectories{"."s};
fortranOptions.searchDirectories = searchDirectories;
fortranOptions.isFixedForm = false;
}
// TODO: When expanding this method, consider creating a dedicated API for
// this. Also at some point we will need to differentiate between different
// targets and add dedicated predefines for each.
void CompilerInvocation::SetDefaultPredefinitions() {
auto &fortranOptions = fortranOpts();
const auto &frontendOptions = frontendOpts();
// Populate the macro list with version numbers and other predefinitions.
fortranOptions.predefinitions.emplace_back("__flang__", "1");
fortranOptions.predefinitions.emplace_back(
"__flang_major__", FLANG_VERSION_MAJOR_STRING);
fortranOptions.predefinitions.emplace_back(
"__flang_minor__", FLANG_VERSION_MINOR_STRING);
fortranOptions.predefinitions.emplace_back(
"__flang_patchlevel__", FLANG_VERSION_PATCHLEVEL_STRING);
// Add predefinitions based on extensions enabled
if (frontendOptions.features.IsEnabled(
Fortran::common::LanguageFeature::OpenACC)) {
fortranOptions.predefinitions.emplace_back("_OPENACC", "202011");
}
if (frontendOptions.features.IsEnabled(
Fortran::common::LanguageFeature::OpenMP)) {
fortranOptions.predefinitions.emplace_back("_OPENMP", "201511");
}
}
void CompilerInvocation::SetFortranOpts() {
auto &fortranOptions = fortranOpts();
const auto &frontendOptions = frontendOpts();
const auto &preprocessorOptions = preprocessorOpts();
auto &moduleDirJ = moduleDir();
if (frontendOptions.fortranForm != FortranForm::Unknown) {
fortranOptions.isFixedForm =
frontendOptions.fortranForm == FortranForm::FixedForm;
}
fortranOptions.fixedFormColumns = frontendOptions.fixedFormColumns;
fortranOptions.features = frontendOptions.features;
fortranOptions.encoding = frontendOptions.encoding;
// Adding search directories specified by -I
fortranOptions.searchDirectories.insert(
fortranOptions.searchDirectories.end(),
preprocessorOptions.searchDirectoriesFromDashI.begin(),
preprocessorOptions.searchDirectoriesFromDashI.end());
// Add the ordered list of -intrinsic-modules-path
fortranOptions.searchDirectories.insert(
fortranOptions.searchDirectories.end(),
preprocessorOptions.searchDirectoriesFromIntrModPath.begin(),
preprocessorOptions.searchDirectoriesFromIntrModPath.end());
// Add the default intrinsic module directory
fortranOptions.intrinsicModuleDirectories.emplace_back(getIntrinsicDir());
// Add the directory supplied through -J/-module-dir to the list of search
// directories
if (moduleDirJ.compare(".") != 0)
fortranOptions.searchDirectories.emplace_back(moduleDirJ);
if (frontendOptions.instrumentedParse)
fortranOptions.instrumentedParse = true;
if (frontendOptions.needProvenanceRangeToCharBlockMappings)
fortranOptions.needProvenanceRangeToCharBlockMappings = true;
if (enableConformanceChecks()) {
fortranOptions.features.WarnOnAllNonstandard();
}
}
void CompilerInvocation::SetSemanticsOpts(
Fortran::parser::AllCookedSources &allCookedSources) {
const auto &fortranOptions = fortranOpts();
semanticsContext_ = std::make_unique<semantics::SemanticsContext>(
defaultKinds(), fortranOptions.features, allCookedSources);
semanticsContext_->set_moduleDirectory(moduleDir())
.set_searchDirectories(fortranOptions.searchDirectories)
.set_intrinsicModuleDirectories(fortranOptions.intrinsicModuleDirectories)
.set_warnOnNonstandardUsage(enableConformanceChecks())
.set_warningsAreErrors(warnAsErr())
.set_moduleFileSuffix(moduleFileSuffix());
}