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6024e5c395b1f86aa76def3fcf0193f49312fe30
clang-r547379/include/clang/Basic/Features.def
Ryan Prichard 6024e5c395 Update prebuilt Clang to r547379 (20.0.0). 
clang 20.0.0 (based on r547379) from build 12806354.

Bug: http://b/379133546
Test: N/A
Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b

Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
2025-11-26 14:59:46 -05:00

314 lines
14 KiB
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//===--- Features.def - Features and Extensions database --------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file defines features exposed via __has_feature and extensions exposed
// via __has_extension. Users of this file must either define the FEATURE or
// EXTENSION macros (or both) to make use of this information. Note that these
// macros expect the following declarations to be available for the Predicate:
//
// const LangOptions &LangOpts;
// const Preprocessor &PP;
//
// The Predicate field dictates the conditions under which the feature or
// extension will be made available.
//
// FEATURE(...) should be used to advertise support for standard language
// features, whereas EXTENSION(...) should be used for clang extensions. Note
// that many of the identifiers in this file don't follow this rule for backward
// compatibility reasons.
//
//===----------------------------------------------------------------------===//
#if !defined(FEATURE) && !defined(EXTENSION)
# error Define either the FEATURE or EXTENSION macro to handle features
#endif
#ifndef FEATURE
#define FEATURE(Name, Predicate)
#endif
#ifndef EXTENSION
#define EXTENSION(Name, Predicate)
#endif
FEATURE(speculative_load_hardening, LangOpts.SpeculativeLoadHardening)
FEATURE(address_sanitizer,
LangOpts.Sanitize.hasOneOf(SanitizerKind::Address |
SanitizerKind::KernelAddress))
FEATURE(leak_sanitizer,
LangOpts.Sanitize.has(SanitizerKind::Leak))
FEATURE(hwaddress_sanitizer,
LangOpts.Sanitize.hasOneOf(SanitizerKind::HWAddress |
SanitizerKind::KernelHWAddress))
FEATURE(memtag_stack,
LangOpts.Sanitize.has(SanitizerKind::MemtagStack))
FEATURE(memtag_heap,
LangOpts.Sanitize.has(SanitizerKind::MemtagHeap))
FEATURE(memtag_globals,
LangOpts.Sanitize.has(SanitizerKind::MemtagGlobals))
FEATURE(xray_instrument, LangOpts.XRayInstrument)
FEATURE(undefined_behavior_sanitizer,
LangOpts.Sanitize.hasOneOf(SanitizerKind::Undefined))
FEATURE(coverage_sanitizer, LangOpts.SanitizeCoverage)
FEATURE(assume_nonnull, true)
FEATURE(attribute_analyzer_noreturn, true)
FEATURE(attribute_availability, true)
FEATURE(attribute_availability_with_message, true)
FEATURE(attribute_availability_app_extension, true)
FEATURE(attribute_availability_with_version_underscores, true)
FEATURE(attribute_availability_tvos, true)
FEATURE(attribute_availability_watchos, true)
FEATURE(attribute_availability_driverkit, true)
FEATURE(attribute_availability_with_strict, true)
FEATURE(attribute_availability_with_replacement, true)
FEATURE(attribute_availability_in_templates, true)
FEATURE(attribute_availability_swift, true)
FEATURE(attribute_cf_returns_not_retained, true)
FEATURE(attribute_cf_returns_retained, true)
FEATURE(attribute_cf_returns_on_parameters, true)
FEATURE(attribute_deprecated_with_message, true)
FEATURE(attribute_deprecated_with_replacement, true)
FEATURE(attribute_ext_vector_type, true)
FEATURE(attribute_ns_returns_not_retained, true)
FEATURE(attribute_ns_returns_retained, true)
FEATURE(attribute_ns_consumes_self, true)
FEATURE(attribute_ns_consumed, true)
FEATURE(attribute_cf_consumed, true)
FEATURE(attribute_objc_ivar_unused, true)
FEATURE(attribute_objc_method_family, true)
FEATURE(attribute_overloadable, true)
FEATURE(attribute_unavailable_with_message, true)
FEATURE(attribute_unused_on_fields, true)
FEATURE(attribute_diagnose_if_objc, true)
FEATURE(blocks, LangOpts.Blocks)
FEATURE(c_thread_safety_attributes, true)
FEATURE(cxx_exceptions, LangOpts.CXXExceptions)
FEATURE(cxx_rtti, LangOpts.RTTI &&LangOpts.RTTIData)
EXTENSION(define_target_os_macros,
PP.getPreprocessorOpts().DefineTargetOSMacros)
FEATURE(enumerator_attributes, true)
FEATURE(nullability, true)
FEATURE(nullability_on_arrays, true)
FEATURE(nullability_on_classes, true)
FEATURE(nullability_nullable_result, true)
FEATURE(numerical_stability_sanitizer, LangOpts.Sanitize.has(SanitizerKind::NumericalStability))
FEATURE(memory_sanitizer,
LangOpts.Sanitize.hasOneOf(SanitizerKind::Memory |
SanitizerKind::KernelMemory))
FEATURE(thread_sanitizer, LangOpts.Sanitize.has(SanitizerKind::Thread))
FEATURE(dataflow_sanitizer, LangOpts.Sanitize.has(SanitizerKind::DataFlow))
FEATURE(scudo, LangOpts.Sanitize.hasOneOf(SanitizerKind::Scudo))
FEATURE(ptrauth_intrinsics, LangOpts.PointerAuthIntrinsics)
FEATURE(ptrauth_calls, LangOpts.PointerAuthCalls)
FEATURE(ptrauth_returns, LangOpts.PointerAuthReturns)
FEATURE(ptrauth_vtable_pointer_address_discrimination, LangOpts.PointerAuthVTPtrAddressDiscrimination)
FEATURE(ptrauth_vtable_pointer_type_discrimination, LangOpts.PointerAuthVTPtrTypeDiscrimination)
FEATURE(ptrauth_type_info_vtable_pointer_discrimination, LangOpts.PointerAuthTypeInfoVTPtrDiscrimination)
FEATURE(ptrauth_member_function_pointer_type_discrimination, LangOpts.PointerAuthCalls)
FEATURE(ptrauth_function_pointer_type_discrimination, LangOpts.PointerAuthFunctionTypeDiscrimination)
FEATURE(ptrauth_indirect_gotos, LangOpts.PointerAuthIndirectGotos)
FEATURE(ptrauth_init_fini, LangOpts.PointerAuthInitFini)
FEATURE(ptrauth_init_fini_address_discrimination, LangOpts.PointerAuthInitFiniAddressDiscrimination)
EXTENSION(swiftcc,
PP.getTargetInfo().checkCallingConvention(CC_Swift) ==
clang::TargetInfo::CCCR_OK)
EXTENSION(swiftasynccc,
PP.getTargetInfo().checkCallingConvention(CC_SwiftAsync) ==
clang::TargetInfo::CCCR_OK)
FEATURE(pragma_stdc_cx_limited_range, true)
// Objective-C features
FEATURE(objc_arr, LangOpts.ObjCAutoRefCount) // FIXME: REMOVE?
FEATURE(objc_arc, LangOpts.ObjCAutoRefCount)
FEATURE(objc_arc_fields, true)
FEATURE(objc_arc_weak, LangOpts.ObjCWeak)
FEATURE(objc_default_synthesize_properties, LangOpts.ObjC)
FEATURE(objc_fixed_enum, LangOpts.ObjC)
FEATURE(objc_instancetype, LangOpts.ObjC)
FEATURE(objc_kindof, LangOpts.ObjC)
FEATURE(objc_modules, LangOpts.ObjC && LangOpts.Modules)
FEATURE(objc_nonfragile_abi, LangOpts.ObjCRuntime.isNonFragile())
FEATURE(objc_property_explicit_atomic, true)
FEATURE(objc_protocol_qualifier_mangling, true)
FEATURE(objc_weak_class, LangOpts.ObjCRuntime.hasWeakClassImport())
FEATURE(ownership_holds, true)
FEATURE(ownership_returns, true)
FEATURE(ownership_takes, true)
FEATURE(objc_bool, true)
FEATURE(objc_subscripting, LangOpts.ObjCRuntime.isNonFragile())
FEATURE(objc_array_literals, LangOpts.ObjC)
FEATURE(objc_dictionary_literals, LangOpts.ObjC)
FEATURE(objc_boxed_expressions, LangOpts.ObjC)
FEATURE(objc_boxed_nsvalue_expressions, LangOpts.ObjC)
FEATURE(arc_cf_code_audited, true)
FEATURE(objc_bridge_id, true)
FEATURE(objc_bridge_id_on_typedefs, true)
FEATURE(objc_generics, LangOpts.ObjC)
FEATURE(objc_generics_variance, LangOpts.ObjC)
FEATURE(objc_class_property, LangOpts.ObjC)
FEATURE(objc_c_static_assert, LangOpts.C11)
FEATURE(objc_cxx_static_assert, LangOpts.CPlusPlus11)
EXTENSION(objc_c_static_assert, true)
// C11 features
FEATURE(c_alignas, LangOpts.C11)
FEATURE(c_alignof, LangOpts.C11)
FEATURE(c_atomic, LangOpts.C11)
FEATURE(c_generic_selections, LangOpts.C11)
FEATURE(c_static_assert, LangOpts.C11)
FEATURE(c_thread_local, LangOpts.C11 &&PP.getTargetInfo().isTLSSupported())
// C++11 features
FEATURE(cxx_access_control_sfinae, LangOpts.CPlusPlus11)
FEATURE(cxx_alias_templates, LangOpts.CPlusPlus11)
FEATURE(cxx_alignas, LangOpts.CPlusPlus11)
FEATURE(cxx_alignof, LangOpts.CPlusPlus11)
FEATURE(cxx_atomic, LangOpts.CPlusPlus11)
FEATURE(cxx_attributes, LangOpts.CPlusPlus11)
FEATURE(cxx_auto_type, LangOpts.CPlusPlus11)
FEATURE(cxx_constexpr, LangOpts.CPlusPlus11)
FEATURE(cxx_constexpr_string_builtins, LangOpts.CPlusPlus11)
FEATURE(cxx_decltype, LangOpts.CPlusPlus11)
FEATURE(cxx_decltype_incomplete_return_types, LangOpts.CPlusPlus11)
FEATURE(cxx_default_function_template_args, LangOpts.CPlusPlus11)
FEATURE(cxx_defaulted_functions, LangOpts.CPlusPlus11)
FEATURE(cxx_delegating_constructors, LangOpts.CPlusPlus11)
FEATURE(cxx_deleted_functions, LangOpts.CPlusPlus11)
FEATURE(cxx_explicit_conversions, LangOpts.CPlusPlus11)
FEATURE(cxx_generalized_initializers, LangOpts.CPlusPlus11)
FEATURE(cxx_implicit_moves, LangOpts.CPlusPlus11)
FEATURE(cxx_inheriting_constructors, LangOpts.CPlusPlus11)
FEATURE(cxx_inline_namespaces, LangOpts.CPlusPlus11)
FEATURE(cxx_lambdas, LangOpts.CPlusPlus11)
FEATURE(cxx_local_type_template_args, LangOpts.CPlusPlus11)
FEATURE(cxx_nonstatic_member_init, LangOpts.CPlusPlus11)
FEATURE(cxx_noexcept, LangOpts.CPlusPlus11)
FEATURE(cxx_nullptr, LangOpts.CPlusPlus11)
FEATURE(cxx_override_control, LangOpts.CPlusPlus11)
FEATURE(cxx_range_for, LangOpts.CPlusPlus11)
FEATURE(cxx_raw_string_literals, LangOpts.CPlusPlus11)
FEATURE(cxx_reference_qualified_functions, LangOpts.CPlusPlus11)
FEATURE(cxx_rvalue_references, LangOpts.CPlusPlus11)
FEATURE(cxx_strong_enums, LangOpts.CPlusPlus11)
FEATURE(cxx_static_assert, LangOpts.CPlusPlus11)
FEATURE(cxx_thread_local,
LangOpts.CPlusPlus11 &&PP.getTargetInfo().isTLSSupported())
FEATURE(cxx_trailing_return, LangOpts.CPlusPlus11)
FEATURE(cxx_unicode_literals, LangOpts.CPlusPlus11)
FEATURE(cxx_unrestricted_unions, LangOpts.CPlusPlus11)
FEATURE(cxx_user_literals, LangOpts.CPlusPlus11)
FEATURE(cxx_variadic_templates, LangOpts.CPlusPlus11)
// C++14 features
FEATURE(cxx_aggregate_nsdmi, LangOpts.CPlusPlus14)
FEATURE(cxx_binary_literals, LangOpts.CPlusPlus14)
FEATURE(cxx_contextual_conversions, LangOpts.CPlusPlus14)
FEATURE(cxx_decltype_auto, LangOpts.CPlusPlus14)
FEATURE(cxx_generic_lambdas, LangOpts.CPlusPlus14)
FEATURE(cxx_init_captures, LangOpts.CPlusPlus14)
FEATURE(cxx_relaxed_constexpr, LangOpts.CPlusPlus14)
FEATURE(cxx_return_type_deduction, LangOpts.CPlusPlus14)
FEATURE(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
// FEATURE(cxx_runtime_arrays, LangOpts.CPlusPlusTSArrays)
// FEATURE(cxx_concepts, LangOpts.CPlusPlusTSConcepts)
// FIXME: Should this be __has_feature or __has_extension?
// FEATURE(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_builtin.
FEATURE(has_nothrow_assign, LangOpts.CPlusPlus)
FEATURE(has_nothrow_copy, LangOpts.CPlusPlus)
FEATURE(has_nothrow_constructor, LangOpts.CPlusPlus)
FEATURE(has_trivial_assign, LangOpts.CPlusPlus)
FEATURE(has_trivial_copy, LangOpts.CPlusPlus)
FEATURE(has_trivial_constructor, LangOpts.CPlusPlus)
FEATURE(has_trivial_destructor, LangOpts.CPlusPlus)
FEATURE(has_virtual_destructor, LangOpts.CPlusPlus)
FEATURE(is_abstract, LangOpts.CPlusPlus)
FEATURE(is_base_of, LangOpts.CPlusPlus)
FEATURE(is_class, LangOpts.CPlusPlus)
FEATURE(is_constructible, LangOpts.CPlusPlus)
FEATURE(is_convertible_to, LangOpts.CPlusPlus)
FEATURE(is_empty, LangOpts.CPlusPlus)
FEATURE(is_enum, LangOpts.CPlusPlus)
FEATURE(is_final, LangOpts.CPlusPlus)
FEATURE(is_literal, LangOpts.CPlusPlus)
FEATURE(is_standard_layout, LangOpts.CPlusPlus)
FEATURE(is_pod, LangOpts.CPlusPlus)
FEATURE(is_polymorphic, LangOpts.CPlusPlus)
FEATURE(is_sealed, LangOpts.CPlusPlus &&LangOpts.MicrosoftExt)
FEATURE(is_trivial, LangOpts.CPlusPlus)
FEATURE(is_trivially_assignable, LangOpts.CPlusPlus)
FEATURE(is_trivially_constructible, LangOpts.CPlusPlus)
FEATURE(is_trivially_copyable, LangOpts.CPlusPlus)
FEATURE(is_union, LangOpts.CPlusPlus)
FEATURE(kcfi, LangOpts.Sanitize.has(SanitizerKind::KCFI))
FEATURE(modules, LangOpts.Modules)
FEATURE(safe_stack, LangOpts.Sanitize.has(SanitizerKind::SafeStack))
FEATURE(shadow_call_stack,
LangOpts.Sanitize.has(SanitizerKind::ShadowCallStack))
FEATURE(tls, PP.getTargetInfo().isTLSSupported())
FEATURE(underlying_type, LangOpts.CPlusPlus)
FEATURE(experimental_library, LangOpts.ExperimentalLibrary)
// C11 features supported by other languages as extensions.
EXTENSION(c_alignas, true)
EXTENSION(c_alignof, true)
EXTENSION(c_atomic, true)
EXTENSION(c_generic_selections, true)
EXTENSION(c_generic_selection_with_controlling_type, true)
EXTENSION(c_static_assert, true)
EXTENSION(c_thread_local, PP.getTargetInfo().isTLSSupported())
// C23 features supported by other languages as extensions
EXTENSION(c_attributes, true)
// C++11 features supported by other languages as extensions.
EXTENSION(cxx_atomic, LangOpts.CPlusPlus)
EXTENSION(cxx_default_function_template_args, LangOpts.CPlusPlus)
EXTENSION(cxx_defaulted_functions, LangOpts.CPlusPlus)
EXTENSION(cxx_deleted_functions, LangOpts.CPlusPlus)
EXTENSION(cxx_explicit_conversions, LangOpts.CPlusPlus)
EXTENSION(cxx_inline_namespaces, LangOpts.CPlusPlus)
EXTENSION(cxx_lambdas, LangOpts.CPlusPlus)
EXTENSION(cxx_local_type_template_args, LangOpts.CPlusPlus)
EXTENSION(cxx_nonstatic_member_init, LangOpts.CPlusPlus)
EXTENSION(cxx_override_control, LangOpts.CPlusPlus)
EXTENSION(cxx_range_for, LangOpts.CPlusPlus)
EXTENSION(cxx_reference_qualified_functions, LangOpts.CPlusPlus)
EXTENSION(cxx_rvalue_references, LangOpts.CPlusPlus)
EXTENSION(cxx_variadic_templates, LangOpts.CPlusPlus)
EXTENSION(cxx_fixed_enum, true)
// C++14 features supported by other languages as extensions.
EXTENSION(cxx_binary_literals, true)
EXTENSION(cxx_init_captures, LangOpts.CPlusPlus11)
EXTENSION(cxx_variable_templates, LangOpts.CPlusPlus)
//C++20
EXTENSION(cxx_generalized_nttp, LangOpts.CPlusPlus20)
//C++23
EXTENSION(cxx_explicit_this_parameter, LangOpts.CPlusPlus23)
// Miscellaneous language extensions
EXTENSION(overloadable_unmarked, true)
EXTENSION(pragma_clang_attribute_namespaces, true)
EXTENSION(pragma_clang_attribute_external_declaration, true)
EXTENSION(statement_attributes_with_gnu_syntax, true)
EXTENSION(gnu_asm, LangOpts.GNUAsm)
EXTENSION(gnu_asm_goto_with_outputs, LangOpts.GNUAsm)
EXTENSION(gnu_asm_goto_with_outputs_full, LangOpts.GNUAsm)
EXTENSION(matrix_types, LangOpts.MatrixTypes)
EXTENSION(matrix_types_scalar_division, true)
EXTENSION(cxx_attributes_on_using_declarations, LangOpts.CPlusPlus11)
EXTENSION(datasizeof, LangOpts.CPlusPlus)
FEATURE(cxx_abi_relative_vtable, LangOpts.CPlusPlus && LangOpts.RelativeCXXABIVTables)
// CUDA/HIP Features
FEATURE(cuda_noinline_keyword, LangOpts.CUDA)
EXTENSION(cuda_implicit_host_device_templates, LangOpts.CUDA && LangOpts.OffloadImplicitHostDeviceTemplates)
#undef EXTENSION
#undef FEATURE
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