averello/swift-mirror
1
0
Fork 0
mirror of https://github.com/apple/swift.git synced 2025-12-14 20:36:38 +01:00
Code Issues Packages Projects Releases Wiki Activity
Files
04b2b5256bdc48baa0da514e566bde9425353b4a
swift-mirror/lib/Frontend/CompilerInvocation.cpp
Andrew Trick 04b2b5256b First implementation of <rdar://15922760> Deep devirtualization - 
specialize on polymorphic arguments.

This can be enabled with: -sil-devirt-threshold 500.

It currently improves RC4 (when enabled) by 20%, but will be much more
important after Michael's load elimination with alias analysis lands.

This implementation is suitable for experimentation. Superficial code
reviews are also welcome. Although be warned that the design is overly
complex and I plan to rewrite it. I initially abandoned the idea of
incrementally specializing one function at a time, thinking that we
need to analyze full chains. However, I since realized after talking
to Nadav that the incremental approach can be made to work. A lot of
book-keeping will go away with that change.

TODO:

- Resolve protocol argument types. Currently we assume they can be
  reinitialized at applies, but I don't think they can unless they are
  @inouts.  This is an issue with the existing local devirtualizer
  that prevents it working across calls.

- Properly mangle the specialized methods. Find existing
  specializations by demangling rather than maintaining a map.

- Rewrite the logic for specializing chains for simplicity.

- Enable by default.

Swift SVN r13642
2014-02-07 19:10:27 +00:00

742 lines
24 KiB
C++
Raw Blame History

//===-- CompilerInvocation.cpp - CompilerInvocation methods ---------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#include "swift/Frontend/Frontend.h"
#include "swift/AST/DiagnosticsFrontend.h"
#include "swift/Subsystems.h"
#include "swift/Driver/Options.h"
#include "swift/Driver/Util.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Option/Arg.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Option/Option.h"
#include "llvm/Support/Path.h"
using namespace swift;
using namespace swift::driver;
using namespace llvm::opt;
swift::CompilerInvocation::CompilerInvocation() {
IRGenOpts.Triple = llvm::sys::getDefaultTargetTriple();
}
void CompilerInvocation::setMainExecutablePath(StringRef Path) {
llvm::SmallString<128> LibPath(Path);
llvm::sys::path::remove_filename(LibPath); // Remove /swift
llvm::sys::path::remove_filename(LibPath); // Remove /bin
llvm::sys::path::append(LibPath, "lib", "swift");
setRuntimeResourcePath(LibPath.str());
}
void CompilerInvocation::setRuntimeResourcePath(StringRef Path) {
SearchPathOpts.RuntimeResourcePath = Path;
updateRuntimeLibraryPath();
}
void CompilerInvocation::updateRuntimeLibraryPath() {
llvm::SmallString<128> LibPath(SearchPathOpts.RuntimeResourcePath);
llvm::Triple Triple(IRGenOpts.Triple);
llvm::sys::path::append(LibPath, getPlatformNameForTriple(Triple));
SearchPathOpts.RuntimeLibraryPath = LibPath.str();
if (Triple.isArch32Bit())
llvm::sys::path::append(LibPath, "32");
SearchPathOpts.RuntimeLibraryImportPath = LibPath.str();
}
void CompilerInvocation::setTargetTriple(StringRef Triple) {
IRGenOpts.Triple = Triple.str();
updateRuntimeLibraryPath();
}
static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags) {
using namespace options;
if (Args.hasArg(OPT_emit_verbose_sil)) {
Opts.EmitVerboseSIL = true;
}
if (Args.hasArg(OPT_delayed_function_body_parsing)) {
Opts.DelayedFunctionBodyParsing = true;
}
if (Args.hasArg(OPT_print_stats)) {
Opts.PrintStats = true;
}
if (const Arg *A = Args.getLastArg(OPT_help, OPT_help_hidden)) {
if (A->getOption().matches(OPT_help)) {
Opts.PrintHelp = true;
} else if (A->getOption().matches(OPT_help_hidden)) {
Opts.PrintHelpHidden = true;
} else {
llvm_unreachable("Unknown help option parsed");
}
}
for (const Arg *A : make_range(Args.filtered_begin(OPT_INPUT,
OPT_primary_file),
Args.filtered_end())) {
if (A->getOption().matches(OPT_INPUT)) {
Opts.InputFilenames.push_back(A->getValue());
} else if (A->getOption().matches(OPT_primary_file)) {
Opts.PrimaryInput = SelectedInput(Opts.InputFilenames.size());
Opts.InputFilenames.push_back(A->getValue());
} else {
llvm_unreachable("Unknown input-related argument!");
}
}
if (Args.hasArg(OPT_parse_stdlib)) {
Opts.ParseStdlib = true;
}
if (const Arg *A = Args.getLastArg(OPT__DASH_DASH)) {
for (unsigned i = 0, e = A->getNumValues(); i != e; ++i) {
Opts.ImmediateArgv.push_back(A->getValue(i));
}
}
// Determine what the user has asked the frontend to do.
FrontendOptions::ActionType Action;
if (const Arg *A = Args.getLastArg(OPT_modes_Group)) {
Option Opt = A->getOption();
if (Opt.matches(OPT_c)) {
Action = FrontendOptions::EmitObject;
} else if (Opt.matches(OPT_S)) {
Action = FrontendOptions::EmitAssembly;
} else if (Opt.matches(OPT_emit_ir)) {
Action = FrontendOptions::EmitIR;
} else if (Opt.matches(OPT_emit_bc)) {
Action = FrontendOptions::EmitBC;
} else if (Opt.matches(OPT_emit_sil)) {
Action = FrontendOptions::EmitSIL;
} else if (Opt.matches(OPT_emit_silgen)) {
Action = FrontendOptions::EmitSILGen;
} else if (Opt.matches(OPT_parse)) {
Action = FrontendOptions::Parse;
} else if (Opt.matches(OPT_dump_parse)) {
Action = FrontendOptions::DumpParse;
// -dump-parse explicitly disables type-checking
Opts.ParseOnly = true;
} else if (Opt.matches(OPT_dump_ast)) {
Action = FrontendOptions::DumpAST;
} else if (Opt.matches(OPT_print_ast)) {
Action = FrontendOptions::PrintAST;
} else if (Opt.matches(OPT_repl)) {
Action = FrontendOptions::REPL;
} else if (Opt.matches(OPT_i)) {
Action = FrontendOptions::Immediate;
} else {
llvm_unreachable("Unhandled mode option");
}
} else {
// We don't have a mode, so determine a default.
// TODO: add check for EmitModuleOnly, once we support -emit-module.
if (Opts.InputFilenames.empty()) {
// We don't have any input files, so default to the REPL.
Action = FrontendOptions::REPL;
} else if (Args.hasArg(OPT_emit_module, OPT_emit_module_path)) {
// We've been told to emit a module, but have no other mode indicators.
// As a result, put the frontend into EmitModuleOnly mode.
// (Setting up module output will be handled below.)
Action = FrontendOptions::EmitModuleOnly;
} else {
// In the absence of any other mode indicators, emit an object file.
Action = FrontendOptions::EmitObject;
}
}
Opts.RequestedAction = Action;
if (Opts.RequestedAction == FrontendOptions::Immediate &&
Opts.PrimaryInput.hasValue()) {
Diags.diagnose(SourceLoc(), diag::error_immediate_mode_primary_file);
return true;
}
bool TreatAsSIL = Args.hasArg(OPT_parse_sil);
if (!TreatAsSIL && Opts.InputFilenames.size() == 1) {
// If we have exactly one input filename, and its extension is "sil",
// treat the input as SIL.
StringRef Input(Opts.InputFilenames[0]);
TreatAsSIL = llvm::sys::path::extension(Input).endswith(SIL_EXTENSION);
}
if (Opts.RequestedAction == FrontendOptions::REPL) {
if (!Opts.InputFilenames.empty()) {
Diags.diagnose(SourceLoc(), diag::error_repl_requires_no_input_files);
return true;
}
} else if (TreatAsSIL) {
if (Opts.InputFilenames.size() != 1) {
Diags.diagnose(SourceLoc(), diag::error_mode_requires_one_input_file);
return true;
}
} else {
if (Opts.InputFilenames.empty()) {
Diags.diagnose(SourceLoc(), diag::error_mode_requires_an_input_file);
return true;
}
}
if (TreatAsSIL)
Opts.InputKind = SourceFileKind::SIL;
else if (Args.hasArg(OPT_parse_as_library))
Opts.InputKind = SourceFileKind::Library;
else if (Action == FrontendOptions::REPL)
Opts.InputKind = SourceFileKind::REPL;
else
Opts.InputKind = SourceFileKind::Main;
if (const Arg *A = Args.getLastArg(OPT_o)) {
Opts.OutputFilename = A->getValue();
}
bool UserSpecifiedModuleName = false;
{
const Arg *A = Args.getLastArg(OPT_module_name);
std::string ModuleName;
if (A) {
ModuleName = A->getValue();
UserSpecifiedModuleName = true;
} else {
// The user did not specify a module name, so determine a default fallback
// based on other options.
// Note: this code path will only be taken when running the frontend
// directly; the driver should always pass -module-name when invoking the
// frontend.
if (Opts.RequestedAction == FrontendOptions::REPL) {
// Default to a module named "REPL" if we're in REPL mode.
ModuleName = "REPL";
} else {
StringRef OutputFilename(Opts.OutputFilename);
if (OutputFilename.empty() || OutputFilename == "-" ||
llvm::sys::fs::is_directory(OutputFilename)) {
ModuleName = Opts.InputFilenames[0];
} else {
ModuleName = OutputFilename;
}
ModuleName = llvm::sys::path::stem(ModuleName);
}
}
if (!Lexer::isIdentifier(ModuleName)) {
if (!Opts.actionHasOutput() ||
(Opts.InputKind == SourceFileKind::Main &&
Opts.InputFilenames.size() == 1)) {
ModuleName = "main";
} else {
Diags.diagnose(SourceLoc(), diag::bad_module_name,
ModuleName, A == nullptr);
ModuleName = "__bad__";
}
}
Opts.ModuleName = ModuleName;
}
if (Opts.OutputFilename.empty() ||
llvm::sys::fs::is_directory(Opts.OutputFilename)) {
// No output filename was specified, or an output directory was specified.
// Determine the correct output filename.
// Note: this should typically only be used when invoking the frontend
// directly, as the driver will always pass -o with an appropriate filename
// if output is required for the requested action.
StringRef Suffix;
switch (Opts.RequestedAction) {
case FrontendOptions::Parse:
case FrontendOptions::DumpParse:
case FrontendOptions::DumpAST:
case FrontendOptions::PrintAST:
// Textual modes.
Opts.OutputFilename = "-";
break;
case FrontendOptions::EmitSILGen:
case FrontendOptions::EmitSIL: {
if (Opts.OutputFilename.empty())
Opts.OutputFilename = "-";
else
Suffix = SIL_EXTENSION;
break;
}
case FrontendOptions::EmitModuleOnly:
Suffix = SERIALIZED_MODULE_EXTENSION;
break;
case FrontendOptions::Immediate:
case FrontendOptions::REPL:
// These modes have no frontend-generated output.
Opts.OutputFilename = "";
break;
case FrontendOptions::EmitAssembly: {
if (Opts.OutputFilename.empty())
Opts.OutputFilename = "-";
else
Suffix = "s";
break;
}
case FrontendOptions::EmitIR: {
if (Opts.OutputFilename.empty())
Opts.OutputFilename = "-";
else
Suffix = "ll";
break;
}
case FrontendOptions::EmitBC: {
Suffix = "bc";
break;
}
case FrontendOptions::EmitObject:
Suffix = "o";
break;
}
if (!Suffix.empty()) {
// We need to deduce a file name.
// First, if we're reading from stdin and we don't have a directory,
// output to stdout.
if (Opts.InputFilenames.size() == 1 && Opts.InputFilenames[0] == "-" &&
Opts.OutputFilename.empty())
Opts.OutputFilename = "-";
else {
// We have a suffix, so determine an appropriate name.
llvm::SmallString<128> Path(Opts.OutputFilename);
StringRef BaseName;
if (Opts.PrimaryInput.hasValue() && Opts.PrimaryInput->isFilename()) {
unsigned Index = Opts.PrimaryInput->Index;
BaseName = llvm::sys::path::stem(Opts.InputFilenames[Index]);
} else if (!UserSpecifiedModuleName &&
Opts.InputFilenames.size() == 1) {
BaseName = llvm::sys::path::stem(Opts.InputFilenames[0]);
} else {
BaseName = Opts.ModuleName;
}
llvm::sys::path::append(Path, BaseName);
llvm::sys::path::replace_extension(Path, Suffix);
Opts.OutputFilename = Path.str();
}
}
if (Opts.OutputFilename.empty()) {
if (Opts.RequestedAction != FrontendOptions::REPL &&
Opts.RequestedAction != FrontendOptions::Immediate) {
Diags.diagnose(SourceLoc(), diag::error_no_output_filename_specified);
return true;
}
} else if (Opts.OutputFilename != "-" &&
llvm::sys::fs::is_directory(Opts.OutputFilename)) {
Diags.diagnose(SourceLoc(), diag::error_implicit_output_file_is_directory,
Opts.OutputFilename);
return true;
}
}
auto determineOutputFilename = [&] (const char *Extension) -> std::string {
StringRef OriginalPath;
if (!Opts.OutputFilename.empty() && Opts.OutputFilename != "-")
// Put the serialized diagnostics file next to the output file.
OriginalPath = Opts.OutputFilename;
else if (Opts.PrimaryInput.hasValue() && Opts.PrimaryInput->isFilename())
// We have a primary input, so use that as the basis for the name of the
// serialized diagnostics file.
OriginalPath = llvm::sys::path::filename(
Opts.InputFilenames[Opts.PrimaryInput->Index]);
else
// We don't have any better indication of name, so fall back on the
// module name.
OriginalPath = Opts.ModuleName;
llvm::SmallString<128> Path(OriginalPath);
llvm::sys::path::replace_extension(Path, Extension);
return Path.str();
};
if (const Arg *A = Args.getLastArg(OPT_serialize_diagnostics_path)) {
// Claim -serialize-diagnostics, if present.
Args.ClaimAllArgs(OPT_serialize_diagnostics);
Opts.SerializedDiagnosticsPath = A->getValue();
} else if (Args.hasArg(OPT_serialize_diagnostics)) {
// -serialize-diagnostics has been passed without
// -serialize-diagnostics-path, so determine a path based on other inputs.
static const char *const DiagnosticsFilePathExtension = "dia";
Opts.SerializedDiagnosticsPath =
determineOutputFilename(DiagnosticsFilePathExtension);
}
if (const Arg *A = Args.getLastArg(OPT_emit_module_path)) {
// Claim -emit-module, if present.
Args.ClaimAllArgs(OPT_emit_module);
Opts.ModuleOutputPath = A->getValue();
} else if (Args.hasArg(OPT_emit_module)) {
// -emit-module has been passed without -emit-module-path, so determine
// a path based on other inputs.
if (Opts.RequestedAction == FrontendOptions::EmitModuleOnly &&
!Opts.OutputFilename.empty())
// We're in EmitModuleOnly mode, so use OutputFilename if we have one.
Opts.ModuleOutputPath = Opts.OutputFilename;
else
// We're either not in EmitModuleOnly mode, or we don't have an
// OutputFilename, so determine an output path based on other inputs.
Opts.ModuleOutputPath =
determineOutputFilename(SERIALIZED_MODULE_EXTENSION);
}
if (!Opts.ModuleOutputPath.empty()) {
switch (Opts.RequestedAction) {
case FrontendOptions::Parse:
case FrontendOptions::DumpParse:
case FrontendOptions::DumpAST:
case FrontendOptions::PrintAST:
case FrontendOptions::EmitSILGen:
case FrontendOptions::Immediate:
case FrontendOptions::REPL:
Diags.diagnose(SourceLoc(), diag::error_mode_cannot_emit_module);
return true;
case FrontendOptions::EmitModuleOnly:
case FrontendOptions::EmitSIL:
case FrontendOptions::EmitIR:
case FrontendOptions::EmitBC:
case FrontendOptions::EmitAssembly:
case FrontendOptions::EmitObject:
break;
}
}
if (const Arg *A = Args.getLastArg(OPT_module_link_name)) {
Opts.ModuleLinkName = A->getValue();
}
Opts.EnableSourceImport = Args.hasArg(OPT_enable_source_import);
Opts.SILSerializeAll = Args.hasArg(OPT_sil_serialize_all);
return false;
}
static bool ParseLangArgs(LangOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags) {
using namespace options;
if (Args.hasArg(OPT_use_malloc)) {
Opts.UseMalloc = true;
}
if (Args.hasArg(OPT_enable_experimental_patterns)) {
Opts.EnableExperimentalPatterns = true;
}
if (Args.hasArg(OPT_debug_constraints)) {
Opts.DebugConstraintSolver = true;
}
if (const Arg *A = Args.getLastArg(OPT_debug_constraints_attempt)) {
unsigned attempt;
if (StringRef(A->getValue()).getAsInteger(10, attempt)) {
Diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
A->getAsString(Args), A->getValue());
return true;
}
Opts.DebugConstraintSolverAttempt = attempt;
}
return false;
}
static bool ParseClangImporterArgs(ClangImporterOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags) {
using namespace options;
if (const Arg *A = Args.getLastArg(OPT_module_cache_path)) {
Opts.ModuleCachePath = A->getValue();
}
for (const Arg *A : make_range(Args.filtered_begin(OPT_Xcc),
Args.filtered_end())) {
Opts.ExtraArgs.push_back(A->getValue());
}
return false;
}
static bool ParseSearchPathArgs(SearchPathOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags) {
using namespace options;
for (const Arg *A : make_range(Args.filtered_begin(OPT_I),
Args.filtered_end())) {
Opts.ImportSearchPaths.push_back(A->getValue());
}
for (const Arg *A : make_range(Args.filtered_begin(OPT_F),
Args.filtered_end())) {
Opts.FrameworkSearchPaths.push_back(A->getValue());
}
if (const Arg *A = Args.getLastArg(OPT_sdk)) {
Opts.SDKPath = A->getValue();
}
// Opts.RuntimeIncludePath is set by calls to
// setRuntimeIncludePath() or setMainExecutablePath().
// Opts.RuntimeImportPath is set by calls to
// setRuntimeIncludePath() or setMainExecutablePath() and
// updated by calls to setTargetTriple() or parseArgs().
// Assumes exactly one of setMainExecutablePath() or setRuntimeIncludePath()
// is called before setTargetTriple() and parseArgs().
// TODO: improve the handling of RuntimeIncludePath.
return false;
}
static bool ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags) {
using namespace options;
if (Args.hasArg(OPT_verify)) {
Opts.VerifyDiagnostics = true;
}
if (Args.hasArg(OPT_disable_diagnostic_passes)) {
Opts.SkipDiagnosticPasses = true;
}
return false;
}
// Lifted from the clang driver.
static void PrintArg(raw_ostream &OS, const char *Arg, bool Quote) {
const bool Escape = std::strpbrk(Arg, "\"\\$ ");
if (!Quote && !Escape) {
OS << Arg;
return;
}
// Quote and escape. This isn't really complete, but good enough.
OS << '"';
while (const char c = *Arg++) {
if (c == '"' || c == '\\' || c == '$')
OS << '\\';
OS << c;
}
OS << '"';
}
static bool ParseSILArgs(SILOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags) {
using namespace options;
if (const Arg *A = Args.getLastArg(OPT_sil_inline_threshold)) {
if (StringRef(A->getValue()).getAsInteger(10, Opts.InlineThreshold)) {
Diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
A->getAsString(Args), A->getValue());
return true;
}
}
if (const Arg *A = Args.getLastArg(OPT_sil_devirt_threshold)) {
if (StringRef(A->getValue()).getAsInteger(10, Opts.DevirtThreshold)) {
Diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
A->getAsString(Args), A->getValue());
return true;
}
}
if (const Arg *A = Args.getLastArg(OPT_disable_sil_linking,
OPT_sil_link_all)) {
if (A->getOption().matches(OPT_disable_sil_linking))
Opts.LinkMode = SILOptions::LinkNone;
else if (A->getOption().matches(OPT_sil_link_all))
Opts.LinkMode = SILOptions::LinkAll;
else
llvm_unreachable("Unknown SIL linking option!");
}
Opts.EnableARCOptimizations = !Args.hasArg(OPT_disable_arc_opts);
return false;
}
void CompilerInvocation::buildDWARFDebugFlags(std::string &Output,
const ArrayRef<const char*> &Args,
StringRef SDKPath) {
llvm::raw_string_ostream OS(Output);
interleave(Args,
[&](const char *Argument) { PrintArg(OS, Argument, false); },
[&] { OS << " "; });
// Inject the SDK path if it is missing.
for (auto A : Args) {
if (StringRef(A).startswith("-sdk"))
return;
}
OS << " -sdk ";
PrintArg(OS, SDKPath.data(), false);
}
static bool ParseIRGenArgs(IRGenOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags,
const FrontendOptions &FrontendOpts,
StringRef SDKPath) {
using namespace options;
if (Args.hasArg(OPT_g)) {
Opts.DebugInfo = true;
ArgStringList RenderedArgs;
for (auto A : Args)
A->render(Args, RenderedArgs);
CompilerInvocation::buildDWARFDebugFlags(Opts.DWARFDebugFlags,
RenderedArgs, SDKPath);
}
for (const Arg *A : make_range(Args.filtered_begin(OPT_l, OPT_framework),
Args.filtered_end())) {
LibraryKind Kind;
if (A->getOption().matches(OPT_l)) {
Kind = LibraryKind::Library;
} else if (A->getOption().matches(OPT_framework)) {
Kind = LibraryKind::Framework;
} else {
llvm_unreachable("Unknown LinkLibrary option kind");
}
Opts.LinkLibraries.push_back(LinkLibrary(A->getValue(), Kind));
}
if (const Arg *A = Args.getLastArg(OPT_O_Group)) {
if (A->getOption().matches(OPT_O0)) {
Opts.OptLevel = 0;
}
else {
unsigned OptLevel;
if (StringRef(A->getValue()).getAsInteger(10, OptLevel) || OptLevel > 3) {
Diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
A->getAsString(Args), A->getValue());
return true;
}
Opts.OptLevel = OptLevel;
}
} else {
Opts.OptLevel = 0;
}
if (Args.hasArg(OPT_disable_all_runtime_checks)) {
Opts.DisableAllRuntimeChecks = true;
}
if (Args.hasArg(OPT_disable_llvm_optzns)) {
Opts.DisableLLVMOptzns = true;
}
if (Args.hasArg(OPT_disable_llvm_arc_opts)) {
Opts.DisableLLVMARCOpts = true;
}
if (Args.hasArg(OPT_enable_dynamic_value_type_layout)) {
Opts.EnableDynamicValueTypeLayout = true;
}
if (const Arg *A = Args.getLastArg(OPT_target)) {
Opts.Triple = llvm::Triple::normalize(A->getValue());
}
// TODO: investigate whether these should be removed, in favor of definitions
// in other classes.
if (!FrontendOpts.InputFilenames.empty())
Opts.MainInputFilename = FrontendOpts.InputFilenames[0];
Opts.OutputFilename = FrontendOpts.OutputFilename;
Opts.ModuleName = FrontendOpts.ModuleName;
return false;
}
bool CompilerInvocation::parseArgs(ArrayRef<const char *> Args,
DiagnosticEngine &Diags) {
using namespace driver::options;
if (Args.empty())
return false;
// Parse frontend command line options using Swift's option table.
std::unique_ptr<llvm::opt::InputArgList> ParsedArgs;
std::unique_ptr<llvm::opt::OptTable> Table = createDriverOptTable();
unsigned MissingIndex;
unsigned MissingCount;
ParsedArgs.reset(
Table->ParseArgs(Args.begin(), Args.end(), MissingIndex, MissingCount,
driver::options::FrontendOption));
if (MissingCount) {
Diags.diagnose(SourceLoc(), diag::error_missing_arg_value,
ParsedArgs->getArgString(MissingIndex), MissingCount);
return true;
}
if (ParsedArgs->hasArg(OPT_UNKNOWN)) {
for (const Arg *A : make_range(ParsedArgs->filtered_begin(OPT_UNKNOWN),
ParsedArgs->filtered_end())) {
Diags.diagnose(SourceLoc(), diag::error_unknown_arg,
A->getAsString(*ParsedArgs));
}
return true;
}
if (ParseFrontendArgs(FrontendOpts, *ParsedArgs, Diags)) {
return true;
}
if (ParseLangArgs(LangOpts, *ParsedArgs, Diags)) {
return true;
}
if (ParseClangImporterArgs(ClangImporterOpts, *ParsedArgs, Diags)) {
return true;
}
if (ParseSearchPathArgs(SearchPathOpts, *ParsedArgs, Diags)) {
return true;
}
if (ParseSILArgs(SILOpts, *ParsedArgs, Diags)) {
return true;
}
if (ParseIRGenArgs(IRGenOpts, *ParsedArgs, Diags, FrontendOpts,
getSDKPath())) {
return true;
}
if (ParseDiagnosticArgs(DiagnosticOpts, *ParsedArgs, Diags)) {
return true;
}
return false;
}
Reference in New Issue View Git Blame Copy Permalink