forked from OSchip/llvm-project
347 lines
9.7 KiB
C++
347 lines
9.7 KiB
C++
// -*- C++ -*-
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//===---------------------------- test_macros.h ---------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef SUPPORT_TEST_MACROS_HPP
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#define SUPPORT_TEST_MACROS_HPP
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// Attempt to get STL specific macros like _LIBCPP_VERSION using the most
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// minimal header possible. If we're testing libc++, we should use `<__config>`.
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// If <__config> isn't available, fall back to <ciso646>.
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#ifdef __has_include
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# if __has_include("<__config>")
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# include <__config>
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# define TEST_IMP_INCLUDED_HEADER
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# endif
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#endif
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#ifndef TEST_IMP_INCLUDED_HEADER
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#include <ciso646>
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#endif
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#if defined(__GNUC__)
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wvariadic-macros"
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#endif
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#define TEST_CONCAT1(X, Y) X##Y
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#define TEST_CONCAT(X, Y) TEST_CONCAT1(X, Y)
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#ifdef __has_feature
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#define TEST_HAS_FEATURE(X) __has_feature(X)
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#else
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#define TEST_HAS_FEATURE(X) 0
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#endif
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#ifndef __has_include
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#define __has_include(...) 0
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#endif
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#ifdef __has_extension
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#define TEST_HAS_EXTENSION(X) __has_extension(X)
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#else
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#define TEST_HAS_EXTENSION(X) 0
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#endif
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#ifdef __has_warning
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#define TEST_HAS_WARNING(X) __has_warning(X)
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#else
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#define TEST_HAS_WARNING(X) 0
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#endif
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#ifdef __has_builtin
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#define TEST_HAS_BUILTIN(X) __has_builtin(X)
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#else
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#define TEST_HAS_BUILTIN(X) 0
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#endif
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#ifdef __is_identifier
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// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by
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// the compiler and '1' otherwise.
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#define TEST_HAS_BUILTIN_IDENTIFIER(X) !__is_identifier(X)
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#else
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#define TEST_HAS_BUILTIN_IDENTIFIER(X) 0
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#endif
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#if defined(__EDG__)
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# define TEST_COMPILER_EDG
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#elif defined(__clang__)
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# define TEST_COMPILER_CLANG
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# if defined(__apple_build_version__)
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# define TEST_COMPILER_APPLE_CLANG
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# endif
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#elif defined(_MSC_VER)
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# define TEST_COMPILER_C1XX
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#elif defined(__GNUC__)
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# define TEST_COMPILER_GCC
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#endif
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#if defined(__apple_build_version__)
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#define TEST_APPLE_CLANG_VER (__clang_major__ * 100) + __clang_minor__
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#elif defined(__clang_major__)
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#define TEST_CLANG_VER (__clang_major__ * 100) + __clang_minor__
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#elif defined(__GNUC__)
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#define TEST_GCC_VER (__GNUC__ * 100 + __GNUC_MINOR__)
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#define TEST_GCC_VER_NEW (TEST_GCC_VER * 10 + __GNUC_PATCHLEVEL__)
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#endif
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/* Make a nice name for the standard version */
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#ifndef TEST_STD_VER
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#if __cplusplus <= 199711L
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# define TEST_STD_VER 3
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#elif __cplusplus <= 201103L
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# define TEST_STD_VER 11
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#elif __cplusplus <= 201402L
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# define TEST_STD_VER 14
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#elif __cplusplus <= 201703L
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# define TEST_STD_VER 17
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#else
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# define TEST_STD_VER 99 // greater than current standard
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// This is deliberately different than _LIBCPP_STD_VER to discourage matching them up.
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#endif
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#endif
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// Attempt to deduce the GLIBC version
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#if (defined(__has_include) && __has_include(<features.h>)) || \
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defined(__linux__)
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#include <features.h>
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#if defined(__GLIBC_PREREQ)
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#define TEST_HAS_GLIBC
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#define TEST_GLIBC_PREREQ(major, minor) __GLIBC_PREREQ(major, minor)
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#endif
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#endif
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#if TEST_STD_VER >= 11
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#define TEST_ALIGNOF(...) alignof(__VA_ARGS__)
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#define TEST_ALIGNAS(...) alignas(__VA_ARGS__)
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#define TEST_CONSTEXPR constexpr
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#define TEST_NOEXCEPT noexcept
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#define TEST_NOEXCEPT_FALSE noexcept(false)
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#define TEST_NOEXCEPT_COND(...) noexcept(__VA_ARGS__)
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# if TEST_STD_VER >= 14
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# define TEST_CONSTEXPR_CXX14 constexpr
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# else
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# define TEST_CONSTEXPR_CXX14
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# endif
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# if TEST_STD_VER > 14
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# define TEST_THROW_SPEC(...)
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# else
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# define TEST_THROW_SPEC(...) throw(__VA_ARGS__)
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# endif
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# if TEST_STD_VER > 17
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# define TEST_CONSTEXPR_CXX20 constexpr
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# else
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# define TEST_CONSTEXPR_CXX20
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# endif
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#else
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#if defined(TEST_COMPILER_CLANG)
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# define TEST_ALIGNOF(...) _Alignof(__VA_ARGS__)
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#else
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# define TEST_ALIGNOF(...) __alignof(__VA_ARGS__)
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#endif
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#define TEST_ALIGNAS(...) __attribute__((__aligned__(__VA_ARGS__)))
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#define TEST_CONSTEXPR
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#define TEST_CONSTEXPR_CXX14
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#define TEST_CONSTEXPR_CXX20
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#define TEST_NOEXCEPT throw()
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#define TEST_NOEXCEPT_FALSE
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#define TEST_NOEXCEPT_COND(...)
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#define TEST_THROW_SPEC(...) throw(__VA_ARGS__)
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#endif
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// Sniff out to see if the underlying C library has C11 features
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// Note that at this time (July 2018), MacOS X and iOS do NOT.
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// This is cribbed from __config; but lives here as well because we can't assume libc++
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#if __ISO_C_VISIBLE >= 2011 || TEST_STD_VER >= 11
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# if defined(__FreeBSD__)
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// Specifically, FreeBSD does NOT have timespec_get, even though they have all
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// the rest of C11 - this is PR#38495
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# define TEST_HAS_ALIGNED_ALLOC
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# define TEST_HAS_C11_FEATURES
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# elif defined(__BIONIC__)
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# define TEST_HAS_C11_FEATURES
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# if __ANDROID_API__ >= 28
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# define TEST_HAS_ALIGNED_ALLOC
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# endif
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# if __ANDROID_API__ >= 29
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# define TEST_HAS_TIMESPEC_GET
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# endif
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# elif defined(__Fuchsia__) || defined(__wasi__) || defined(__NetBSD__)
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# define TEST_HAS_ALIGNED_ALLOC
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# define TEST_HAS_C11_FEATURES
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# define TEST_HAS_TIMESPEC_GET
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# elif defined(__linux__)
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// This block preserves the old behavior used by include/__config:
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// _LIBCPP_GLIBC_PREREQ would be defined to 0 if __GLIBC_PREREQ was not
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// available. The configuration here may be too vague though, as Bionic, uClibc,
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// newlib, etc may all support these features but need to be configured.
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# if defined(TEST_GLIBC_PREREQ)
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# if TEST_GLIBC_PREREQ(2, 17)
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# define TEST_HAS_ALIGNED_ALLOC
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# define TEST_HAS_TIMESPEC_GET
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# define TEST_HAS_C11_FEATURES
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# endif
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# elif defined(_LIBCPP_HAS_MUSL_LIBC)
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# define TEST_HAS_ALIGNED_ALLOC
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# define TEST_HAS_C11_FEATURES
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# define TEST_HAS_TIMESPEC_GET
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# endif
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# elif defined(_WIN32)
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# if defined(_MSC_VER) && !defined(__MINGW32__)
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# define TEST_HAS_ALIGNED_ALLOC
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# define TEST_HAS_C11_FEATURES // Using Microsoft's C Runtime library
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# define TEST_HAS_TIMESPEC_GET
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# endif
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# endif
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#endif
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/* Features that were introduced in C++14 */
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#if TEST_STD_VER >= 14
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#define TEST_HAS_EXTENDED_CONSTEXPR
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#define TEST_HAS_VARIABLE_TEMPLATES
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#endif
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/* Features that were introduced in C++17 */
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#if TEST_STD_VER >= 17
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#endif
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/* Features that were introduced after C++17 */
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#if TEST_STD_VER > 17
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#endif
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#define TEST_ALIGNAS_TYPE(...) TEST_ALIGNAS(TEST_ALIGNOF(__VA_ARGS__))
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#if !TEST_HAS_FEATURE(cxx_rtti) && !defined(__cpp_rtti) \
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&& !defined(__GXX_RTTI)
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#define TEST_HAS_NO_RTTI
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#endif
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#if !TEST_HAS_FEATURE(cxx_exceptions) && !defined(__cpp_exceptions) \
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&& !defined(__EXCEPTIONS)
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#define TEST_HAS_NO_EXCEPTIONS
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#endif
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#if TEST_HAS_FEATURE(address_sanitizer) || TEST_HAS_FEATURE(memory_sanitizer) || \
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TEST_HAS_FEATURE(thread_sanitizer)
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#define TEST_HAS_SANITIZERS
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#endif
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#if defined(_LIBCPP_NORETURN)
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#define TEST_NORETURN _LIBCPP_NORETURN
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#else
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#define TEST_NORETURN [[noreturn]]
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#endif
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#if defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) || \
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(!(TEST_STD_VER > 14 || \
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(defined(__cpp_aligned_new) && __cpp_aligned_new >= 201606L)))
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#define TEST_HAS_NO_ALIGNED_ALLOCATION
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#endif
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#if defined(_LIBCPP_SAFE_STATIC)
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#define TEST_SAFE_STATIC _LIBCPP_SAFE_STATIC
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#else
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#define TEST_SAFE_STATIC
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#endif
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#if !defined(__cpp_impl_three_way_comparison) \
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&& (!defined(_MSC_VER) || defined(__clang__) || _MSC_VER < 1920 || _MSVC_LANG <= 201703L)
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#define TEST_HAS_NO_SPACESHIP_OPERATOR
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#endif
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#if TEST_STD_VER < 11
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#define ASSERT_NOEXCEPT(...)
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#define ASSERT_NOT_NOEXCEPT(...)
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#else
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#define ASSERT_NOEXCEPT(...) \
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static_assert(noexcept(__VA_ARGS__), "Operation must be noexcept")
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#define ASSERT_NOT_NOEXCEPT(...) \
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static_assert(!noexcept(__VA_ARGS__), "Operation must NOT be noexcept")
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#endif
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/* Macros for testing libc++ specific behavior and extensions */
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#if defined(_LIBCPP_VERSION)
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#define LIBCPP_ASSERT(...) assert(__VA_ARGS__)
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#define LIBCPP_STATIC_ASSERT(...) static_assert(__VA_ARGS__)
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#define LIBCPP_ASSERT_NOEXCEPT(...) ASSERT_NOEXCEPT(__VA_ARGS__)
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#define LIBCPP_ASSERT_NOT_NOEXCEPT(...) ASSERT_NOT_NOEXCEPT(__VA_ARGS__)
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#define LIBCPP_ONLY(...) __VA_ARGS__
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#else
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#define LIBCPP_ASSERT(...) ((void)0)
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#define LIBCPP_STATIC_ASSERT(...) ((void)0)
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#define LIBCPP_ASSERT_NOEXCEPT(...) ((void)0)
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#define LIBCPP_ASSERT_NOT_NOEXCEPT(...) ((void)0)
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#define LIBCPP_ONLY(...) ((void)0)
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#endif
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#define TEST_IGNORE_NODISCARD (void)
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namespace test_macros_detail {
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template <class T, class U>
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struct is_same { enum { value = 0};} ;
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template <class T>
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struct is_same<T, T> { enum {value = 1}; };
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} // namespace test_macros_detail
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#define ASSERT_SAME_TYPE(...) \
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static_assert((test_macros_detail::is_same<__VA_ARGS__>::value), \
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"Types differ unexpectedly")
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#ifndef TEST_HAS_NO_EXCEPTIONS
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#define TEST_THROW(...) throw __VA_ARGS__
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#else
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#if defined(__GNUC__)
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#define TEST_THROW(...) __builtin_abort()
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#else
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#include <stdlib.h>
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#define TEST_THROW(...) ::abort()
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#endif
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#endif
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#if defined(__GNUC__) || defined(__clang__)
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template <class Tp>
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inline
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void DoNotOptimize(Tp const& value) {
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asm volatile("" : : "r,m"(value) : "memory");
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}
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template <class Tp>
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inline void DoNotOptimize(Tp& value) {
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#if defined(__clang__)
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asm volatile("" : "+r,m"(value) : : "memory");
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#else
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asm volatile("" : "+m,r"(value) : : "memory");
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#endif
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}
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#else
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#include <intrin.h>
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template <class Tp>
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inline void DoNotOptimize(Tp const& value) {
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const volatile void* volatile unused = __builtin_addressof(value);
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static_cast<void>(unused);
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_ReadWriteBarrier();
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}
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#endif
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#if defined(__GNUC__)
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#define TEST_ALWAYS_INLINE __attribute__((always_inline))
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#define TEST_NOINLINE __attribute__((noinline))
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#elif defined(_MSC_VER)
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#define TEST_ALWAYS_INLINE __forceinline
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#define TEST_NOINLINE __declspec(noinline)
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#else
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#define TEST_ALWAYS_INLINE
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#define TEST_NOINLINE
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#endif
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#if defined(__GNUC__)
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#pragma GCC diagnostic pop
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#endif
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#endif // SUPPORT_TEST_MACROS_HPP
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