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-rw-r--r--clang/lib/Frontend/CompilerInvocation.cpp3
-rw-r--r--clang/lib/Frontend/FrontendActions.cpp48
-rw-r--r--clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp2
-rw-r--r--clang/lib/Lex/PPMacroExpansion.cpp216
4 files changed, 62 insertions, 207 deletions
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 594164332ec..b5396dd758f 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1396,6 +1396,8 @@ static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
Opts.ProgramAction = frontend::ASTPrint; break;
case OPT_ast_view:
Opts.ProgramAction = frontend::ASTView; break;
+ case OPT_compiler_options_dump:
+ Opts.ProgramAction = frontend::DumpCompilerOptions; break;
case OPT_dump_raw_tokens:
Opts.ProgramAction = frontend::DumpRawTokens; break;
case OPT_dump_tokens:
@@ -2788,6 +2790,7 @@ static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
case frontend::MigrateSource:
return false;
+ case frontend::DumpCompilerOptions:
case frontend::DumpRawTokens:
case frontend::DumpTokens:
case frontend::InitOnly:
diff --git a/clang/lib/Frontend/FrontendActions.cpp b/clang/lib/Frontend/FrontendActions.cpp
index 13f05371718..602fee1fdca 100644
--- a/clang/lib/Frontend/FrontendActions.cpp
+++ b/clang/lib/Frontend/FrontendActions.cpp
@@ -756,3 +756,51 @@ void PrintPreambleAction::ExecuteAction() {
llvm::outs().write((*Buffer)->getBufferStart(), Preamble);
}
}
+
+void DumpCompilerOptionsAction::ExecuteAction() {
+ CompilerInstance &CI = getCompilerInstance();
+ std::unique_ptr<raw_ostream> OSP =
+ CI.createDefaultOutputFile(false, getCurrentFile());
+ if (!OSP)
+ return;
+
+ raw_ostream &OS = *OSP;
+ const Preprocessor &PP = CI.getPreprocessor();
+ const LangOptions &LangOpts = PP.getLangOpts();
+
+ // FIXME: Rather than manually format the JSON (which is awkward due to
+ // needing to remove trailing commas), this should make use of a JSON library.
+ // FIXME: Instead of printing enums as an integral value and specifying the
+ // type as a separate field, use introspection to print the enumerator.
+
+ OS << "{\n";
+ OS << "\n\"features\" : [\n";
+ {
+ llvm::SmallString<128> Str;
+#define FEATURE(Name, Predicate) \
+ ("\t{\"" #Name "\" : " + llvm::Twine(Predicate ? "true" : "false") + "},\n") \
+ .toVector(Str);
+#include "clang/Basic/Features.def"
+#undef FEATURE
+ // Remove the newline and comma from the last entry to ensure this remains
+ // valid JSON.
+ OS << Str.substr(0, Str.size() - 2);
+ }
+ OS << "\n],\n";
+
+ OS << "\n\"extensions\" : [\n";
+ {
+ llvm::SmallString<128> Str;
+#define EXTENSION(Name, Predicate) \
+ ("\t{\"" #Name "\" : " + llvm::Twine(Predicate ? "true" : "false") + "},\n") \
+ .toVector(Str);
+#include "clang/Basic/Features.def"
+#undef EXTENSION
+ // Remove the newline and comma from the last entry to ensure this remains
+ // valid JSON.
+ OS << Str.substr(0, Str.size() - 2);
+ }
+ OS << "\n]\n";
+
+ OS << "}";
+}
diff --git a/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp b/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
index 1bb939a6fad..ac2ee50a1e4 100644
--- a/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
+++ b/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
@@ -45,6 +45,8 @@ CreateFrontendBaseAction(CompilerInstance &CI) {
case ASTDump: return llvm::make_unique<ASTDumpAction>();
case ASTPrint: return llvm::make_unique<ASTPrintAction>();
case ASTView: return llvm::make_unique<ASTViewAction>();
+ case DumpCompilerOptions:
+ return llvm::make_unique<DumpCompilerOptionsAction>();
case DumpRawTokens: return llvm::make_unique<DumpRawTokensAction>();
case DumpTokens: return llvm::make_unique<DumpTokensAction>();
case EmitAssembly: return llvm::make_unique<EmitAssemblyAction>();
diff --git a/clang/lib/Lex/PPMacroExpansion.cpp b/clang/lib/Lex/PPMacroExpansion.cpp
index 21b33861888..d9992e00f8c 100644
--- a/clang/lib/Lex/PPMacroExpansion.cpp
+++ b/clang/lib/Lex/PPMacroExpansion.cpp
@@ -1099,187 +1099,11 @@ static bool HasFeature(const Preprocessor &PP, StringRef Feature) {
if (Feature.startswith("__") && Feature.endswith("__") && Feature.size() >= 4)
Feature = Feature.substr(2, Feature.size() - 4);
+#define FEATURE(Name, Predicate) .Case(#Name, Predicate)
return llvm::StringSwitch<bool>(Feature)
- .Case("address_sanitizer",
- LangOpts.Sanitize.hasOneOf(SanitizerKind::Address |
- SanitizerKind::KernelAddress))
- .Case("hwaddress_sanitizer",
- LangOpts.Sanitize.hasOneOf(SanitizerKind::HWAddress |
- SanitizerKind::KernelHWAddress))
- .Case("assume_nonnull", true)
- .Case("attribute_analyzer_noreturn", true)
- .Case("attribute_availability", true)
- .Case("attribute_availability_with_message", true)
- .Case("attribute_availability_app_extension", true)
- .Case("attribute_availability_with_version_underscores", true)
- .Case("attribute_availability_tvos", true)
- .Case("attribute_availability_watchos", true)
- .Case("attribute_availability_with_strict", true)
- .Case("attribute_availability_with_replacement", true)
- .Case("attribute_availability_in_templates", true)
- .Case("attribute_cf_returns_not_retained", true)
- .Case("attribute_cf_returns_retained", true)
- .Case("attribute_cf_returns_on_parameters", true)
- .Case("attribute_deprecated_with_message", true)
- .Case("attribute_deprecated_with_replacement", true)
- .Case("attribute_ext_vector_type", true)
- .Case("attribute_ns_returns_not_retained", true)
- .Case("attribute_ns_returns_retained", true)
- .Case("attribute_ns_consumes_self", true)
- .Case("attribute_ns_consumed", true)
- .Case("attribute_cf_consumed", true)
- .Case("attribute_objc_ivar_unused", true)
- .Case("attribute_objc_method_family", true)
- .Case("attribute_overloadable", true)
- .Case("attribute_unavailable_with_message", true)
- .Case("attribute_unused_on_fields", true)
- .Case("attribute_diagnose_if_objc", true)
- .Case("blocks", LangOpts.Blocks)
- .Case("c_thread_safety_attributes", true)
- .Case("cxx_exceptions", LangOpts.CXXExceptions)
- .Case("cxx_rtti", LangOpts.RTTI && LangOpts.RTTIData)
- .Case("enumerator_attributes", true)
- .Case("nullability", true)
- .Case("nullability_on_arrays", true)
- .Case("memory_sanitizer", LangOpts.Sanitize.has(SanitizerKind::Memory))
- .Case("thread_sanitizer", LangOpts.Sanitize.has(SanitizerKind::Thread))
- .Case("dataflow_sanitizer",
- LangOpts.Sanitize.has(SanitizerKind::DataFlow))
- .Case("efficiency_sanitizer",
- LangOpts.Sanitize.hasOneOf(SanitizerKind::Efficiency))
- .Case("scudo", LangOpts.Sanitize.hasOneOf(SanitizerKind::Scudo))
- // Objective-C features
- .Case("objc_arr", LangOpts.ObjCAutoRefCount) // FIXME: REMOVE?
- .Case("objc_arc", LangOpts.ObjCAutoRefCount)
- .Case("objc_arc_fields", true)
- .Case("objc_arc_weak", LangOpts.ObjCWeak)
- .Case("objc_default_synthesize_properties", LangOpts.ObjC2)
- .Case("objc_fixed_enum", LangOpts.ObjC2)
- .Case("objc_instancetype", LangOpts.ObjC2)
- .Case("objc_kindof", LangOpts.ObjC2)
- .Case("objc_modules", LangOpts.ObjC2 && LangOpts.Modules)
- .Case("objc_nonfragile_abi", LangOpts.ObjCRuntime.isNonFragile())
- .Case("objc_property_explicit_atomic",
- true) // Does clang support explicit "atomic" keyword?
- .Case("objc_protocol_qualifier_mangling", true)
- .Case("objc_weak_class", LangOpts.ObjCRuntime.hasWeakClassImport())
- .Case("ownership_holds", true)
- .Case("ownership_returns", true)
- .Case("ownership_takes", true)
- .Case("objc_bool", true)
- .Case("objc_subscripting", LangOpts.ObjCRuntime.isNonFragile())
- .Case("objc_array_literals", LangOpts.ObjC2)
- .Case("objc_dictionary_literals", LangOpts.ObjC2)
- .Case("objc_boxed_expressions", LangOpts.ObjC2)
- .Case("objc_boxed_nsvalue_expressions", LangOpts.ObjC2)
- .Case("arc_cf_code_audited", true)
- .Case("objc_bridge_id", true)
- .Case("objc_bridge_id_on_typedefs", true)
- .Case("objc_generics", LangOpts.ObjC2)
- .Case("objc_generics_variance", LangOpts.ObjC2)
- .Case("objc_class_property", LangOpts.ObjC2)
- // C11 features
- .Case("c_alignas", LangOpts.C11)
- .Case("c_alignof", LangOpts.C11)
- .Case("c_atomic", LangOpts.C11)
- .Case("c_generic_selections", LangOpts.C11)
- .Case("c_static_assert", LangOpts.C11)
- .Case("c_thread_local",
- LangOpts.C11 && PP.getTargetInfo().isTLSSupported())
- // C++11 features
- .Case("cxx_access_control_sfinae", LangOpts.CPlusPlus11)
- .Case("cxx_alias_templates", LangOpts.CPlusPlus11)
- .Case("cxx_alignas", LangOpts.CPlusPlus11)
- .Case("cxx_alignof", LangOpts.CPlusPlus11)
- .Case("cxx_atomic", LangOpts.CPlusPlus11)
- .Case("cxx_attributes", LangOpts.CPlusPlus11)
- .Case("cxx_auto_type", LangOpts.CPlusPlus11)
- .Case("cxx_constexpr", LangOpts.CPlusPlus11)
- .Case("cxx_constexpr_string_builtins", LangOpts.CPlusPlus11)
- .Case("cxx_decltype", LangOpts.CPlusPlus11)
- .Case("cxx_decltype_incomplete_return_types", LangOpts.CPlusPlus11)
- .Case("cxx_default_function_template_args", LangOpts.CPlusPlus11)
- .Case("cxx_defaulted_functions", LangOpts.CPlusPlus11)
- .Case("cxx_delegating_constructors", LangOpts.CPlusPlus11)
- .Case("cxx_deleted_functions", LangOpts.CPlusPlus11)
- .Case("cxx_explicit_conversions", LangOpts.CPlusPlus11)
- .Case("cxx_generalized_initializers", LangOpts.CPlusPlus11)
- .Case("cxx_implicit_moves", LangOpts.CPlusPlus11)
- .Case("cxx_inheriting_constructors", LangOpts.CPlusPlus11)
- .Case("cxx_inline_namespaces", LangOpts.CPlusPlus11)
- .Case("cxx_lambdas", LangOpts.CPlusPlus11)
- .Case("cxx_local_type_template_args", LangOpts.CPlusPlus11)
- .Case("cxx_nonstatic_member_init", LangOpts.CPlusPlus11)
- .Case("cxx_noexcept", LangOpts.CPlusPlus11)
- .Case("cxx_nullptr", LangOpts.CPlusPlus11)
- .Case("cxx_override_control", LangOpts.CPlusPlus11)
- .Case("cxx_range_for", LangOpts.CPlusPlus11)
- .Case("cxx_raw_string_literals", LangOpts.CPlusPlus11)
- .Case("cxx_reference_qualified_functions", LangOpts.CPlusPlus11)
- .Case("cxx_rvalue_references", LangOpts.CPlusPlus11)
- .Case("cxx_strong_enums", LangOpts.CPlusPlus11)
- .Case("cxx_static_assert", LangOpts.CPlusPlus11)
- .Case("cxx_thread_local",
- LangOpts.CPlusPlus11 && PP.getTargetInfo().isTLSSupported())
- .Case("cxx_trailing_return", LangOpts.CPlusPlus11)
- .Case("cxx_unicode_literals", LangOpts.CPlusPlus11)
- .Case("cxx_unrestricted_unions", LangOpts.CPlusPlus11)
- .Case("cxx_user_literals", LangOpts.CPlusPlus11)
- .Case("cxx_variadic_templates", LangOpts.CPlusPlus11)
- // C++14 features
- .Case("cxx_aggregate_nsdmi", LangOpts.CPlusPlus14)
- .Case("cxx_binary_literals", LangOpts.CPlusPlus14)
- .Case("cxx_contextual_conversions", LangOpts.CPlusPlus14)
- .Case("cxx_decltype_auto", LangOpts.CPlusPlus14)
- .Case("cxx_generic_lambdas", LangOpts.CPlusPlus14)
- .Case("cxx_init_captures", LangOpts.CPlusPlus14)
- .Case("cxx_relaxed_constexpr", LangOpts.CPlusPlus14)
- .Case("cxx_return_type_deduction", LangOpts.CPlusPlus14)
- .Case("cxx_variable_templates", LangOpts.CPlusPlus14)
- // NOTE: For features covered by SD-6, it is preferable to provide *only*
- // the SD-6 macro and not a __has_feature check.
-
- // C++ TSes
- //.Case("cxx_runtime_arrays", LangOpts.CPlusPlusTSArrays)
- //.Case("cxx_concepts", LangOpts.CPlusPlusTSConcepts)
- // FIXME: Should this be __has_feature or __has_extension?
- //.Case("raw_invocation_type", LangOpts.CPlusPlus)
- // Type traits
- // N.B. Additional type traits should not be added to the following list.
- // Instead, they should be detected by has_extension.
- .Case("has_nothrow_assign", LangOpts.CPlusPlus)
- .Case("has_nothrow_copy", LangOpts.CPlusPlus)
- .Case("has_nothrow_constructor", LangOpts.CPlusPlus)
- .Case("has_trivial_assign", LangOpts.CPlusPlus)
- .Case("has_trivial_copy", LangOpts.CPlusPlus)
- .Case("has_trivial_constructor", LangOpts.CPlusPlus)
- .Case("has_trivial_destructor", LangOpts.CPlusPlus)
- .Case("has_virtual_destructor", LangOpts.CPlusPlus)
- .Case("is_abstract", LangOpts.CPlusPlus)
- .Case("is_base_of", LangOpts.CPlusPlus)
- .Case("is_class", LangOpts.CPlusPlus)
- .Case("is_constructible", LangOpts.CPlusPlus)
- .Case("is_convertible_to", LangOpts.CPlusPlus)
- .Case("is_empty", LangOpts.CPlusPlus)
- .Case("is_enum", LangOpts.CPlusPlus)
- .Case("is_final", LangOpts.CPlusPlus)
- .Case("is_literal", LangOpts.CPlusPlus)
- .Case("is_standard_layout", LangOpts.CPlusPlus)
- .Case("is_pod", LangOpts.CPlusPlus)
- .Case("is_polymorphic", LangOpts.CPlusPlus)
- .Case("is_sealed", LangOpts.CPlusPlus && LangOpts.MicrosoftExt)
- .Case("is_trivial", LangOpts.CPlusPlus)
- .Case("is_trivially_assignable", LangOpts.CPlusPlus)
- .Case("is_trivially_constructible", LangOpts.CPlusPlus)
- .Case("is_trivially_copyable", LangOpts.CPlusPlus)
- .Case("is_union", LangOpts.CPlusPlus)
- .Case("modules", LangOpts.Modules)
- .Case("safe_stack", LangOpts.Sanitize.has(SanitizerKind::SafeStack))
- .Case("shadow_call_stack",
- LangOpts.Sanitize.has(SanitizerKind::ShadowCallStack))
- .Case("tls", PP.getTargetInfo().isTLSSupported())
- .Case("underlying_type", LangOpts.CPlusPlus)
+#include "clang/Basic/Features.def"
.Default(false);
+#undef FEATURE
}
/// HasExtension - Return true if we recognize and implement the feature
@@ -1302,35 +1126,13 @@ static bool HasExtension(const Preprocessor &PP, StringRef Extension) {
Extension.size() >= 4)
Extension = Extension.substr(2, Extension.size() - 4);
- // Because we inherit the feature list from HasFeature, this string switch
- // must be less restrictive than HasFeature's.
+ // Because we inherit the feature list from HasFeature, this string switch
+ // must be less restrictive than HasFeature's.
+#define EXTENSION(Name, Predicate) .Case(#Name, Predicate)
return llvm::StringSwitch<bool>(Extension)
- // C11 features supported by other languages as extensions.
- .Case("c_alignas", true)
- .Case("c_alignof", true)
- .Case("c_atomic", true)
- .Case("c_generic_selections", true)
- .Case("c_static_assert", true)
- .Case("c_thread_local", PP.getTargetInfo().isTLSSupported())
- // C++11 features supported by other languages as extensions.
- .Case("cxx_atomic", LangOpts.CPlusPlus)
- .Case("cxx_deleted_functions", LangOpts.CPlusPlus)
- .Case("cxx_explicit_conversions", LangOpts.CPlusPlus)
- .Case("cxx_inline_namespaces", LangOpts.CPlusPlus)
- .Case("cxx_local_type_template_args", LangOpts.CPlusPlus)
- .Case("cxx_nonstatic_member_init", LangOpts.CPlusPlus)
- .Case("cxx_override_control", LangOpts.CPlusPlus)
- .Case("cxx_range_for", LangOpts.CPlusPlus)
- .Case("cxx_reference_qualified_functions", LangOpts.CPlusPlus)
- .Case("cxx_rvalue_references", LangOpts.CPlusPlus)
- .Case("cxx_variadic_templates", LangOpts.CPlusPlus)
- // C++14 features supported by other languages as extensions.
- .Case("cxx_binary_literals", true)
- .Case("cxx_init_captures", LangOpts.CPlusPlus11)
- .Case("cxx_variable_templates", LangOpts.CPlusPlus)
- // Miscellaneous language extensions
- .Case("overloadable_unmarked", true)
- .Default(false);
+#include "clang/Basic/Features.def"
+ .Default(false);
+#undef EXTENSION
}
/// EvaluateHasIncludeCommon - Process a '__has_include("path")'
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