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parallel-hashmap/parallel_hashmap/phmap_config.h
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greg e3279dcf10 wip
2019-03-23 10:33:16 -04:00

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#if !defined(phmap_config_h_guard_)
#define phmap_config_h_guard_
// ---------------------------------------------------------------------------
// Copyright (c) 2019, Gregory Popovitch - greg7mdp@gmail.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Includes work from abseil-cpp (https://github.com/abseil/abseil-cpp)
// with modifications.
//
// Copyright 2018 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ---------------------------------------------------------------------------
#define PHMAP_VERSION_MAJOR 0
#define PHMAP_VERSION_MINOR 9
#define PHMAP_VERSION_PATCH 0
// Included for the __GLIBC__ macro (or similar macros on other systems).
#include <limits.h>
#ifdef __cplusplus
// Included for __GLIBCXX__, _LIBCPP_VERSION
#include <cstddef>
#endif // __cplusplus
#if defined(__APPLE__)
// Included for TARGET_OS_IPHONE, __IPHONE_OS_VERSION_MIN_REQUIRED,
// __IPHONE_8_0.
#include <Availability.h>
#include <TargetConditionals.h>
#endif
// -----------------------------------------------------------------------------
// Some sanity checks
// -----------------------------------------------------------------------------
#if defined(__CYGWIN__)
#error "Cygwin is not supported."
#endif
#if defined(_MSC_FULL_VER) && _MSC_FULL_VER < 190023918 && !defined(__clang__)
#error "phmap requires Visual Studio 2015 Update 2 or higher."
#endif
// We support gcc 4.7 and later.
#if defined(__GNUC__) && !defined(__clang__)
#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
#error "phmap requires gcc 4.7 or higher."
#endif
#endif
// We support Apple Xcode clang 4.2.1 (version 421.11.65) and later.
// This corresponds to Apple Xcode version 4.5.
#if defined(__apple_build_version__) && __apple_build_version__ < 4211165
#error "phmap requires __apple_build_version__ of 4211165 or higher."
#endif
// Enforce C++11 as the minimum.
#if defined(__cplusplus) && !defined(_MSC_VER)
#if __cplusplus < 201103L
#error "C++ versions less than C++11 are not supported."
#endif
#endif
// We have chosen glibc 2.12 as the minimum
#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
#if !__GLIBC_PREREQ(2, 12)
#error "Minimum required version of glibc is 2.12."
#endif
#endif
#if defined(_STLPORT_VERSION)
#error "STLPort is not supported."
#endif
#if CHAR_BIT != 8
#error "phmap assumes CHAR_BIT == 8."
#endif
// phmap currently assumes that an int is 4 bytes.
#if INT_MAX < 2147483647
#error "phmap assumes that int is at least 4 bytes. "
#endif
// -----------------------------------------------------------------------------
// Compiler Feature Checks
// -----------------------------------------------------------------------------
#ifdef __has_builtin
#define PHMAP_HAVE_BUILTIN(x) __has_builtin(x)
#else
#define PHMAP_HAVE_BUILTIN(x) 0
#endif
// ----------------------------------------------------------------
// Checks whether `std::is_trivially_destructible<T>` is supported.
// ----------------------------------------------------------------
#ifdef PHMAP_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE
#error PHMAP_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE cannot be directly set
#elif defined(_LIBCPP_VERSION) || \
(!defined(__clang__) && defined(__GNUC__) && defined(__GLIBCXX__) && \
(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))) || \
defined(_MSC_VER)
#define PHMAP_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE 1
#endif
// --------------------------------------------------------------
// Checks whether `std::is_trivially_default_constructible<T>` is
// supported.
// --------------------------------------------------------------
#if defined(PHMAP_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE)
#error PHMAP_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE cannot be directly set
#elif defined(PHMAP_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE)
#error PHMAP_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE cannot directly set
#elif (defined(__clang__) && defined(_LIBCPP_VERSION)) || \
(!defined(__clang__) && defined(__GNUC__) && \
(__GNUC__ > 5 || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)) && \
(defined(_LIBCPP_VERSION) || defined(__GLIBCXX__))) || \
(defined(_MSC_VER) && !defined(__NVCC__))
#define PHMAP_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE 1
#define PHMAP_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1
#endif
// -------------------------------------------------------------------
// Checks whether C++11's `thread_local` storage duration specifier is
// supported.
// -------------------------------------------------------------------
#ifdef PHMAP_HAVE_THREAD_LOCAL
#error PHMAP_HAVE_THREAD_LOCAL cannot be directly set
#elif defined(__APPLE__)
#if __has_feature(cxx_thread_local) && \
!(TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_9_0)
#define PHMAP_HAVE_THREAD_LOCAL 1
#endif
#else // !defined(__APPLE__)
#define PHMAP_HAVE_THREAD_LOCAL 1
#endif
#if defined(__ANDROID__) && defined(__clang__)
#if __has_include(<android/ndk-version.h>)
#include <android/ndk-version.h>
#endif // __has_include(<android/ndk-version.h>)
#if defined(__ANDROID__) && defined(__clang__) && defined(__NDK_MAJOR__) && \
defined(__NDK_MINOR__) && \
((__NDK_MAJOR__ < 12) || ((__NDK_MAJOR__ == 12) && (__NDK_MINOR__ < 1)))
#undef PHMAP_HAVE_TLS
#undef PHMAP_HAVE_THREAD_LOCAL
#endif
#endif
// ------------------------------------------------------------
// Checks whether the __int128 compiler extension for a 128-bit
// integral type is supported.
// ------------------------------------------------------------
#ifdef PHMAP_HAVE_INTRINSIC_INT128
#error PHMAP_HAVE_INTRINSIC_INT128 cannot be directly set
#elif defined(__SIZEOF_INT128__)
#if (defined(__clang__) && !defined(_WIN32) && !defined(__aarch64__)) || \
(defined(__CUDACC__) && __CUDACC_VER_MAJOR__ >= 9) || \
(defined(__GNUC__) && !defined(__clang__) && !defined(__CUDACC__))
#define PHMAP_HAVE_INTRINSIC_INT128 1
#elif defined(__CUDACC__)
#if __CUDACC_VER__ >= 70000
#define PHMAP_HAVE_INTRINSIC_INT128 1
#endif // __CUDACC_VER__ >= 70000
#endif // defined(__CUDACC__)
#endif
// ------------------------------------------------------------------
// Checks whether the compiler both supports and enables exceptions.
// ------------------------------------------------------------------
#ifdef PHMAP_HAVE_EXCEPTIONS
#error PHMAP_HAVE_EXCEPTIONS cannot be directly set.
#elif defined(__clang__)
#if defined(__EXCEPTIONS) && __has_feature(cxx_exceptions)
#define PHMAP_HAVE_EXCEPTIONS 1
#endif // defined(__EXCEPTIONS) && __has_feature(cxx_exceptions)
#elif !(defined(__GNUC__) && (__GNUC__ < 5) && !defined(__EXCEPTIONS)) && \
!(defined(__GNUC__) && (__GNUC__ >= 5) && !defined(__cpp_exceptions)) && \
!(defined(_MSC_VER) && !defined(_CPPUNWIND))
#define PHMAP_HAVE_EXCEPTIONS 1
#endif
// -----------------------------------------------------------------------
// Checks whether the platform has an mmap(2) implementation as defined in
// POSIX.1-2001.
// -----------------------------------------------------------------------
#ifdef PHMAP_HAVE_MMAP
#error PHMAP_HAVE_MMAP cannot be directly set
#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \
defined(__ros__) || defined(__native_client__) || defined(__asmjs__) || \
defined(__wasm__) || defined(__Fuchsia__) || defined(__sun) || \
defined(__ASYLO__)
#define PHMAP_HAVE_MMAP 1
#endif
// -----------------------------------------------------------------------
// Checks the endianness of the platform.
// -----------------------------------------------------------------------
#if defined(PHMAP_IS_BIG_ENDIAN)
#error "PHMAP_IS_BIG_ENDIAN cannot be directly set."
#endif
#if defined(PHMAP_IS_LITTLE_ENDIAN)
#error "PHMAP_IS_LITTLE_ENDIAN cannot be directly set."
#endif
#if (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && \
__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
#define PHMAP_IS_LITTLE_ENDIAN 1
#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && \
__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define PHMAP_IS_BIG_ENDIAN 1
#elif defined(_WIN32)
#define PHMAP_IS_LITTLE_ENDIAN 1
#else
#error "phmap endian detection needs to be set up for your compiler"
#endif
#if defined(__APPLE__) && defined(_LIBCPP_VERSION) && \
defined(__MAC_OS_X_VERSION_MIN_REQUIRED__) && \
__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101400
#define PHMAP_INTERNAL_MACOS_CXX17_TYPES_UNAVAILABLE 1
#else
#define PHMAP_INTERNAL_MACOS_CXX17_TYPES_UNAVAILABLE 0
#endif
// ---------------------------------------------------------------------------
// Checks whether C++17 std::any is available by checking whether <any> exists.
// ---------------------------------------------------------------------------
#ifdef PHMAP_HAVE_STD_ANY
#error "PHMAP_HAVE_STD_ANY cannot be directly set."
#endif
#ifdef __has_include
#if __has_include(<any>) && __cplusplus >= 201703L && \
!PHMAP_INTERNAL_MACOS_CXX17_TYPES_UNAVAILABLE
#define PHMAP_HAVE_STD_ANY 1
#endif
#endif
#ifdef PHMAP_HAVE_STD_OPTIONAL
#error "PHMAP_HAVE_STD_OPTIONAL cannot be directly set."
#endif
#ifdef __has_include
#if __has_include(<optional>) && __cplusplus >= 201703L && \
!PHMAP_INTERNAL_MACOS_CXX17_TYPES_UNAVAILABLE
#define PHMAP_HAVE_STD_OPTIONAL 1
#endif
#endif
#ifdef PHMAP_HAVE_STD_VARIANT
#error "PHMAP_HAVE_STD_VARIANT cannot be directly set."
#endif
#ifdef __has_include
#if __has_include(<variant>) && __cplusplus >= 201703L && \
!PHMAP_INTERNAL_MACOS_CXX17_TYPES_UNAVAILABLE
#define PHMAP_HAVE_STD_VARIANT 1
#endif
#endif
#ifdef PHMAP_HAVE_STD_STRING_VIEW
#error "PHMAP_HAVE_STD_STRING_VIEW cannot be directly set."
#endif
#ifdef __has_include
#if __has_include(<string_view>) && __cplusplus >= 201703L
#define PHMAP_HAVE_STD_STRING_VIEW 1
#endif
#endif
#if defined(_MSC_VER) && _MSC_VER >= 1910 && \
((defined(_MSVC_LANG) && _MSVC_LANG > 201402) || __cplusplus > 201402)
// #define PHMAP_HAVE_STD_ANY 1
#define PHMAP_HAVE_STD_OPTIONAL 1
#define PHMAP_HAVE_STD_VARIANT 1
#define PHMAP_HAVE_STD_STRING_VIEW 1
#endif
// In debug mode, MSVC 2017's std::variant throws a EXCEPTION_ACCESS_VIOLATION
// SEH exception from emplace for variant<SomeStruct> when constructing the
// struct can throw. This defeats some of variant_test and
// variant_exception_safety_test.
#if defined(_MSC_VER) && _MSC_VER >= 1700 && defined(_DEBUG)
#define PHMAP_INTERNAL_MSVC_2017_DBG_MODE
#endif
// -----------------------------------------------------------------------------
// Sanitizer Attributes
// -----------------------------------------------------------------------------
//
// Sanitizer-related attributes are not "defined" in this file (and indeed
// are not defined as such in any file). To utilize the following
// sanitizer-related attributes within your builds, define the following macros
// within your build using a `-D` flag, along with the given value for
// `-fsanitize`:
//
// * `ADDRESS_SANITIZER` + `-fsanitize=address` (Clang, GCC 4.8)
// * `MEMORY_SANITIZER` + `-fsanitize=memory` (Clang-only)
// * `THREAD_SANITIZER + `-fsanitize=thread` (Clang, GCC 4.8+)
// * `UNDEFINED_BEHAVIOR_SANITIZER` + `-fsanitize=undefined` (Clang, GCC 4.9+)
// * `CONTROL_FLOW_INTEGRITY` + -fsanitize=cfi (Clang-only)
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
// A function-like feature checking macro that is a wrapper around
// `__has_attribute`, which is defined by GCC 5+ and Clang and evaluates to a
// nonzero constant integer if the attribute is supported or 0 if not.
//
// It evaluates to zero if `__has_attribute` is not defined by the compiler.
// -----------------------------------------------------------------------------
#ifdef __has_attribute
#define PHMAP_HAVE_ATTRIBUTE(x) __has_attribute(x)
#else
#define PHMAP_HAVE_ATTRIBUTE(x) 0
#endif
// -----------------------------------------------------------------------------
// A function-like feature checking macro that accepts C++11 style attributes.
// It's a wrapper around `__has_cpp_attribute`, defined by ISO C++ SD-6
// (https://en.cppreference.com/w/cpp/experimental/feature_test). If we don't
// find `__has_cpp_attribute`, will evaluate to 0.
// -----------------------------------------------------------------------------
#if defined(__cplusplus) && defined(__has_cpp_attribute)
#define PHMAP_HAVE_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
#else
#define PHMAP_HAVE_CPP_ATTRIBUTE(x) 0
#endif
// -----------------------------------------------------------------------------
// Function Attributes
// -----------------------------------------------------------------------------
#if PHMAP_HAVE_ATTRIBUTE(format) || (defined(__GNUC__) && !defined(__clang__))
#define PHMAP_PRINTF_ATTRIBUTE(string_index, first_to_check) \
__attribute__((__format__(__printf__, string_index, first_to_check)))
#define PHMAP_SCANF_ATTRIBUTE(string_index, first_to_check) \
__attribute__((__format__(__scanf__, string_index, first_to_check)))
#else
#define PHMAP_PRINTF_ATTRIBUTE(string_index, first_to_check)
#define PHMAP_SCANF_ATTRIBUTE(string_index, first_to_check)
#endif
#if PHMAP_HAVE_ATTRIBUTE(always_inline) || \
(defined(__GNUC__) && !defined(__clang__))
#define PHMAP_ATTRIBUTE_ALWAYS_INLINE __attribute__((always_inline))
#define PHMAP_HAVE_ATTRIBUTE_ALWAYS_INLINE 1
#else
#define PHMAP_ATTRIBUTE_ALWAYS_INLINE
#endif
#if PHMAP_HAVE_ATTRIBUTE(noinline) || (defined(__GNUC__) && !defined(__clang__))
#define PHMAP_ATTRIBUTE_NOINLINE __attribute__((noinline))
#define PHMAP_HAVE_ATTRIBUTE_NOINLINE 1
#else
#define PHMAP_ATTRIBUTE_NOINLINE
#endif
#if PHMAP_HAVE_ATTRIBUTE(disable_tail_calls)
#define PHMAP_HAVE_ATTRIBUTE_NO_TAIL_CALL 1
#define PHMAP_ATTRIBUTE_NO_TAIL_CALL __attribute__((disable_tail_calls))
#elif defined(__GNUC__) && !defined(__clang__)
#define PHMAP_HAVE_ATTRIBUTE_NO_TAIL_CALL 1
#define PHMAP_ATTRIBUTE_NO_TAIL_CALL \
__attribute__((optimize("no-optimize-sibling-calls")))
#else
#define PHMAP_ATTRIBUTE_NO_TAIL_CALL
#define PHMAP_HAVE_ATTRIBUTE_NO_TAIL_CALL 0
#endif
#if (PHMAP_HAVE_ATTRIBUTE(weak) || \
(defined(__GNUC__) && !defined(__clang__))) && \
!(defined(__llvm__) && defined(_WIN32))
#undef PHMAP_ATTRIBUTE_WEAK
#define PHMAP_ATTRIBUTE_WEAK __attribute__((weak))
#define PHMAP_HAVE_ATTRIBUTE_WEAK 1
#else
#define PHMAP_ATTRIBUTE_WEAK
#define PHMAP_HAVE_ATTRIBUTE_WEAK 0
#endif
#if PHMAP_HAVE_ATTRIBUTE(nonnull) || (defined(__GNUC__) && !defined(__clang__))
#define PHMAP_ATTRIBUTE_NONNULL(arg_index) __attribute__((nonnull(arg_index)))
#else
#define PHMAP_ATTRIBUTE_NONNULL(...)
#endif
#if PHMAP_HAVE_ATTRIBUTE(noreturn) || (defined(__GNUC__) && !defined(__clang__))
#define PHMAP_ATTRIBUTE_NORETURN __attribute__((noreturn))
#elif defined(_MSC_VER)
#define PHMAP_ATTRIBUTE_NORETURN __declspec(noreturn)
#else
#define PHMAP_ATTRIBUTE_NORETURN
#endif
#if defined(__GNUC__) && defined(ADDRESS_SANITIZER)
#define PHMAP_ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
#else
#define PHMAP_ATTRIBUTE_NO_SANITIZE_ADDRESS
#endif
#if defined(__GNUC__) && defined(MEMORY_SANITIZER)
#define PHMAP_ATTRIBUTE_NO_SANITIZE_MEMORY __attribute__((no_sanitize_memory))
#else
#define PHMAP_ATTRIBUTE_NO_SANITIZE_MEMORY
#endif
#if defined(__GNUC__) && defined(THREAD_SANITIZER)
#define PHMAP_ATTRIBUTE_NO_SANITIZE_THREAD __attribute__((no_sanitize_thread))
#else
#define PHMAP_ATTRIBUTE_NO_SANITIZE_THREAD
#endif
#if defined(__GNUC__) && \
(defined(UNDEFINED_BEHAVIOR_SANITIZER) || defined(ADDRESS_SANITIZER))
#define PHMAP_ATTRIBUTE_NO_SANITIZE_UNDEFINED \
__attribute__((no_sanitize("undefined")))
#else
#define PHMAP_ATTRIBUTE_NO_SANITIZE_UNDEFINED
#endif
#if defined(__GNUC__) && defined(CONTROL_FLOW_INTEGRITY)
#define PHMAP_ATTRIBUTE_NO_SANITIZE_CFI __attribute__((no_sanitize("cfi")))
#else
#define PHMAP_ATTRIBUTE_NO_SANITIZE_CFI
#endif
#if defined(__GNUC__) && defined(SAFESTACK_SANITIZER)
#define PHMAP_ATTRIBUTE_NO_SANITIZE_SAFESTACK \
__attribute__((no_sanitize("safe-stack")))
#else
#define PHMAP_ATTRIBUTE_NO_SANITIZE_SAFESTACK
#endif
#if PHMAP_HAVE_ATTRIBUTE(returns_nonnull) || \
(defined(__GNUC__) && \
(__GNUC__ > 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) && \
!defined(__clang__))
#define PHMAP_ATTRIBUTE_RETURNS_NONNULL __attribute__((returns_nonnull))
#else
#define PHMAP_ATTRIBUTE_RETURNS_NONNULL
#endif
#ifdef PHMAP_HAVE_ATTRIBUTE_SECTION
#error PHMAP_HAVE_ATTRIBUTE_SECTION cannot be directly set
#elif (PHMAP_HAVE_ATTRIBUTE(section) || \
(defined(__GNUC__) && !defined(__clang__))) && \
!defined(__APPLE__) && PHMAP_HAVE_ATTRIBUTE_WEAK
#define PHMAP_HAVE_ATTRIBUTE_SECTION 1
#ifndef PHMAP_ATTRIBUTE_SECTION
#define PHMAP_ATTRIBUTE_SECTION(name) \
__attribute__((section(#name))) __attribute__((noinline))
#endif
#ifndef PHMAP_ATTRIBUTE_SECTION_VARIABLE
#define PHMAP_ATTRIBUTE_SECTION_VARIABLE(name) __attribute__((section(#name)))
#endif
#ifndef PHMAP_DECLARE_ATTRIBUTE_SECTION_VARS
#define PHMAP_DECLARE_ATTRIBUTE_SECTION_VARS(name) \
extern char __start_##name[] PHMAP_ATTRIBUTE_WEAK; \
extern char __stop_##name[] PHMAP_ATTRIBUTE_WEAK
#endif
#ifndef PHMAP_DEFINE_ATTRIBUTE_SECTION_VARS
#define PHMAP_INIT_ATTRIBUTE_SECTION_VARS(name)
#define PHMAP_DEFINE_ATTRIBUTE_SECTION_VARS(name)
#endif
#define PHMAP_ATTRIBUTE_SECTION_START(name) \
(reinterpret_cast<void *>(__start_##name))
#define PHMAP_ATTRIBUTE_SECTION_STOP(name) \
(reinterpret_cast<void *>(__stop_##name))
#else // !PHMAP_HAVE_ATTRIBUTE_SECTION
#define PHMAP_HAVE_ATTRIBUTE_SECTION 0
#define PHMAP_ATTRIBUTE_SECTION(name)
#define PHMAP_ATTRIBUTE_SECTION_VARIABLE(name)
#define PHMAP_INIT_ATTRIBUTE_SECTION_VARS(name)
#define PHMAP_DEFINE_ATTRIBUTE_SECTION_VARS(name)
#define PHMAP_DECLARE_ATTRIBUTE_SECTION_VARS(name)
#define PHMAP_ATTRIBUTE_SECTION_START(name) (reinterpret_cast<void *>(0))
#define PHMAP_ATTRIBUTE_SECTION_STOP(name) (reinterpret_cast<void *>(0))
#endif // PHMAP_ATTRIBUTE_SECTION
#if PHMAP_HAVE_ATTRIBUTE(force_align_arg_pointer) || \
(defined(__GNUC__) && !defined(__clang__))
#if defined(__i386__)
#define PHMAP_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC \
__attribute__((force_align_arg_pointer))
#define PHMAP_REQUIRE_STACK_ALIGN_TRAMPOLINE (0)
#elif defined(__x86_64__)
#define PHMAP_REQUIRE_STACK_ALIGN_TRAMPOLINE (1)
#define PHMAP_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC
#else // !__i386__ && !__x86_64
#define PHMAP_REQUIRE_STACK_ALIGN_TRAMPOLINE (0)
#define PHMAP_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC
#endif // __i386__
#else
#define PHMAP_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC
#define PHMAP_REQUIRE_STACK_ALIGN_TRAMPOLINE (0)
#endif
#if PHMAP_HAVE_ATTRIBUTE(nodiscard)
#define PHMAP_MUST_USE_RESULT [[nodiscard]]
#elif defined(__clang__) && PHMAP_HAVE_ATTRIBUTE(warn_unused_result)
#define PHMAP_MUST_USE_RESULT __attribute__((warn_unused_result))
#else
#define PHMAP_MUST_USE_RESULT
#endif
#if PHMAP_HAVE_ATTRIBUTE(hot) || (defined(__GNUC__) && !defined(__clang__))
#define PHMAP_ATTRIBUTE_HOT __attribute__((hot))
#else
#define PHMAP_ATTRIBUTE_HOT
#endif
#if PHMAP_HAVE_ATTRIBUTE(cold) || (defined(__GNUC__) && !defined(__clang__))
#define PHMAP_ATTRIBUTE_COLD __attribute__((cold))
#else
#define PHMAP_ATTRIBUTE_COLD
#endif
#if PHMAP_HAVE_CPP_ATTRIBUTE(clang::xray_always_instrument) && \
!defined(PHMAP_NO_XRAY_ATTRIBUTES)
#define PHMAP_XRAY_ALWAYS_INSTRUMENT [[clang::xray_always_instrument]]
#define PHMAP_XRAY_NEVER_INSTRUMENT [[clang::xray_never_instrument]]
#if PHMAP_HAVE_CPP_ATTRIBUTE(clang::xray_log_args)
#define PHMAP_XRAY_LOG_ARGS(N) \
[[clang::xray_always_instrument, clang::xray_log_args(N)]]
#else
#define PHMAP_XRAY_LOG_ARGS(N) [[clang::xray_always_instrument]]
#endif
#else
#define PHMAP_XRAY_ALWAYS_INSTRUMENT
#define PHMAP_XRAY_NEVER_INSTRUMENT
#define PHMAP_XRAY_LOG_ARGS(N)
#endif
#if PHMAP_HAVE_CPP_ATTRIBUTE(clang::reinitializes)
#define PHMAP_ATTRIBUTE_REINITIALIZES [[clang::reinitializes]]
#else
#define PHMAP_ATTRIBUTE_REINITIALIZES
#endif
#if PHMAP_HAVE_ATTRIBUTE(unused) || (defined(__GNUC__) && !defined(__clang__))
#undef PHMAP_ATTRIBUTE_UNUSED
#define PHMAP_ATTRIBUTE_UNUSED __attribute__((__unused__))
#else
#define PHMAP_ATTRIBUTE_UNUSED
#endif
#if PHMAP_HAVE_ATTRIBUTE(tls_model) || (defined(__GNUC__) && !defined(__clang__))
#define PHMAP_ATTRIBUTE_INITIAL_EXEC __attribute__((tls_model("initial-exec")))
#else
#define PHMAP_ATTRIBUTE_INITIAL_EXEC
#endif
#if PHMAP_HAVE_ATTRIBUTE(packed) || (defined(__GNUC__) && !defined(__clang__))
#define PHMAP_ATTRIBUTE_PACKED __attribute__((__packed__))
#else
#define PHMAP_ATTRIBUTE_PACKED
#endif
#if PHMAP_HAVE_ATTRIBUTE(aligned) || (defined(__GNUC__) && !defined(__clang__))
#define PHMAP_ATTRIBUTE_FUNC_ALIGN(bytes) __attribute__((aligned(bytes)))
#else
#define PHMAP_ATTRIBUTE_FUNC_ALIGN(bytes)
#endif
#if PHMAP_HAVE_CPP_ATTRIBUTE(clang::require_constant_initialization)
#define PHMAP_CONST_INIT [[clang::require_constant_initialization]]
#else
#define PHMAP_CONST_INIT
#endif // PHMAP_HAVE_CPP_ATTRIBUTE(clang::require_constant_initialization)
// ----------------------------------------------------------------------
// Figure out SSE support
// ----------------------------------------------------------------------
#ifndef PHMAP_HAVE_SSE2
#if defined(__SSE2__) || \
(defined(_MSC_VER) && \
(defined(_M_X64) || (defined(_M_IX86) && _M_IX86_FP >= 2)))
#define PHMAP_HAVE_SSE2 1
#else
#define PHMAP_HAVE_SSE2 0
#endif
#endif
#ifndef PHMAP_HAVE_SSSE3
#ifdef __SSSE3__
#define PHMAP_HAVE_SSSE3 1
#else
#define PHMAP_HAVE_SSSE3 0
#endif
#endif
#if PHMAP_HAVE_SSSE3 && !PHMAP_HAVE_SSE2
#error "Bad configuration!"
#endif
#if PHMAP_HAVE_SSE2
#include <emmintrin.h>
#endif
#if PHMAP_HAVE_SSSE3
#include <tmmintrin.h>
#endif
#endif // phmap_config_h_guard_
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