mirror of
https://github.com/wpilibsuite/allwpilib
synced 2026-06-19 00:41:43 +00:00
22b58c1853
Also removes xxhash, Hashing, and MapVector to reduce the size of the patches and to speed up compile times by a smidge.
728 lines
25 KiB
C++
728 lines
25 KiB
C++
//===-- llvm/Support/Compiler.h - Compiler abstraction support --*- C++ -*-===//
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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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//
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// This file defines several macros, based on the current compiler. This allows
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// use of compiler-specific features in a way that remains portable. This header
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// can be included from either C or C++.
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//
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//===----------------------------------------------------------------------===//
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#ifndef WPIUTIL_WPI_COMPILER_H
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#define WPIUTIL_WPI_COMPILER_H
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#include <stddef.h>
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#if defined(_MSC_VER)
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#include <sal.h>
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#endif
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#ifndef __has_feature
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# define __has_feature(x) 0
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#endif
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#ifndef __has_extension
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# define __has_extension(x) 0
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#endif
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#ifndef __has_attribute
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# define __has_attribute(x) 0
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#endif
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#ifndef __has_builtin
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# define __has_builtin(x) 0
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#endif
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// Only use __has_cpp_attribute in C++ mode. GCC defines __has_cpp_attribute in
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// C mode, but the :: in __has_cpp_attribute(scoped::attribute) is invalid.
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#ifndef LLVM_HAS_CPP_ATTRIBUTE
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#if defined(__cplusplus) && defined(__has_cpp_attribute)
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# define LLVM_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
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#else
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# define LLVM_HAS_CPP_ATTRIBUTE(x) 0
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#endif
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#endif
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/// \macro LLVM_GNUC_PREREQ
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/// Extend the default __GNUC_PREREQ even if glibc's features.h isn't
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/// available.
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#ifndef LLVM_GNUC_PREREQ
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# if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
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# define LLVM_GNUC_PREREQ(maj, min, patch) \
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((__GNUC__ << 20) + (__GNUC_MINOR__ << 10) + __GNUC_PATCHLEVEL__ >= \
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((maj) << 20) + ((min) << 10) + (patch))
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# elif defined(__GNUC__) && defined(__GNUC_MINOR__)
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# define LLVM_GNUC_PREREQ(maj, min, patch) \
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((__GNUC__ << 20) + (__GNUC_MINOR__ << 10) >= ((maj) << 20) + ((min) << 10))
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# else
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# define LLVM_GNUC_PREREQ(maj, min, patch) 0
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# endif
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#endif
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/// \macro LLVM_MSC_PREREQ
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/// Is the compiler MSVC of at least the specified version?
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/// The common \param version values to check for are:
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/// * 1910: VS2017, version 15.1 & 15.2
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/// * 1911: VS2017, version 15.3 & 15.4
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/// * 1912: VS2017, version 15.5
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/// * 1913: VS2017, version 15.6
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/// * 1914: VS2017, version 15.7
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/// * 1915: VS2017, version 15.8
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/// * 1916: VS2017, version 15.9
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/// * 1920: VS2019, version 16.0
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/// * 1921: VS2019, version 16.1
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/// * 1922: VS2019, version 16.2
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/// * 1923: VS2019, version 16.3
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/// * 1924: VS2019, version 16.4
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/// * 1925: VS2019, version 16.5
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/// * 1926: VS2019, version 16.6
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/// * 1927: VS2019, version 16.7
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/// * 1928: VS2019, version 16.8 + 16.9
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/// * 1929: VS2019, version 16.10 + 16.11
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/// * 1930: VS2022, version 17.0
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#ifndef LLVM_MSC_PREREQ
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#ifdef _MSC_VER
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#define LLVM_MSC_PREREQ(version) (_MSC_VER >= (version))
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// We require at least VS 2019.
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#if !defined(LLVM_FORCE_USE_OLD_TOOLCHAIN)
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#if !LLVM_MSC_PREREQ(1920)
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#error LLVM requires at least VS 2019.
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#endif
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#endif
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#else
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#define LLVM_MSC_PREREQ(version) 0
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#endif
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#endif
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/// LLVM_LIBRARY_VISIBILITY - If a class marked with this attribute is linked
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/// into a shared library, then the class should be private to the library and
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/// not accessible from outside it. Can also be used to mark variables and
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/// functions, making them private to any shared library they are linked into.
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/// On PE/COFF targets, library visibility is the default, so this isn't needed.
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///
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/// LLVM_EXTERNAL_VISIBILITY - classes, functions, and variables marked with
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/// this attribute will be made public and visible outside of any shared library
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/// they are linked in to.
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#if LLVM_HAS_CPP_ATTRIBUTE(gnu::visibility) && defined(__GNUC__) && \
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!defined(__clang__)
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#define LLVM_ATTRIBUTE_VISIBILITY_HIDDEN [[gnu::visibility("hidden")]]
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#define LLVM_ATTRIBUTE_VISIBILITY_DEFAULT [[gnu::visibility("default")]]
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#elif __has_attribute(visibility)
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#define LLVM_ATTRIBUTE_VISIBILITY_HIDDEN __attribute__((visibility("hidden")))
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#define LLVM_ATTRIBUTE_VISIBILITY_DEFAULT __attribute__((visibility("default")))
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#else
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#define LLVM_ATTRIBUTE_VISIBILITY_HIDDEN
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#define LLVM_ATTRIBUTE_VISIBILITY_DEFAULT
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#endif
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#if defined(LLVM_BUILD_LLVM_DYLIB) || defined(LLVM_BUILD_SHARED_LIBS)
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#define LLVM_EXTERNAL_VISIBILITY LLVM_ATTRIBUTE_VISIBILITY_DEFAULT
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#else
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#define LLVM_EXTERNAL_VISIBILITY
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#endif
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#if (!(defined(_WIN32) || defined(__CYGWIN__)) || \
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(defined(__MINGW32__) && defined(__clang__)))
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#define LLVM_LIBRARY_VISIBILITY LLVM_ATTRIBUTE_VISIBILITY_HIDDEN
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// Clang compilers older then 15 do not support gnu style attributes on
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// namespaces.
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#if defined(__clang__) && __clang_major__ < 15
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#define LLVM_LIBRARY_VISIBILITY_NAMESPACE [[gnu::visibility("hidden")]]
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#else
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#define LLVM_LIBRARY_VISIBILITY_NAMESPACE LLVM_ATTRIBUTE_VISIBILITY_HIDDEN
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#endif
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#define LLVM_ALWAYS_EXPORT LLVM_ATTRIBUTE_VISIBILITY_DEFAULT
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#elif defined(_WIN32)
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#define LLVM_ALWAYS_EXPORT __declspec(dllexport)
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#define LLVM_LIBRARY_VISIBILITY
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#define LLVM_LIBRARY_VISIBILITY_NAMESPACE
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#else
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#define LLVM_LIBRARY_VISIBILITY
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#define LLVM_ALWAYS_EXPORT
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#define LLVM_LIBRARY_VISIBILITY_NAMESPACE
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#endif
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/// LLVM_ABI is the main export/visibility macro to mark something as explicitly
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/// exported when llvm is built as a shared library with everything else that is
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/// unannotated will have internal visibility.
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///
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/// LLVM_ABI_EXPORT is for the special case for things like plugin symbol
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/// declarations or definitions where we don't want the macro to be switching
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/// between dllexport and dllimport on windows based on what codebase is being
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/// built, it will only be dllexport. For non windows platforms this macro
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/// behaves the same as LLVM_ABI.
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///
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/// LLVM_EXPORT_TEMPLATE is used on explicit template instantiations in source
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/// files that were declared extern in a header. This macro is only set as a
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/// compiler export attribute on windows, on other platforms it does nothing.
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///
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/// LLVM_TEMPLATE_ABI is for annotating extern template declarations in headers
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/// for both functions and classes. On windows its turned in to dllimport for
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/// library consumers, for other platforms its a default visibility attribute.
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///
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/// LLVM_C_ABI is used to annotated functions and data that need to be exported
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/// for the libllvm-c API. This used both for the llvm-c headers and for the
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/// functions declared in the different Target's c++ source files that don't
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/// include the header forward declaring them.
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#ifndef LLVM_ABI_GENERATING_ANNOTATIONS
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// Marker to add to classes or functions in public headers that should not have
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// export macros added to them by the clang tool
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#define LLVM_ABI_NOT_EXPORTED
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#if defined(LLVM_BUILD_LLVM_DYLIB) || defined(LLVM_BUILD_SHARED_LIBS) || \
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defined(LLVM_ENABLE_PLUGINS)
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// Some libraries like those for tablegen are linked in to tools that used
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// in the build so can't depend on the llvm shared library. If export macros
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// were left enabled when building these we would get duplicate or
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// missing symbol linker errors on windows.
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#if defined(LLVM_BUILD_STATIC)
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#define LLVM_ABI
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#define LLVM_TEMPLATE_ABI
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#define LLVM_EXPORT_TEMPLATE
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#define LLVM_ABI_EXPORT
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#elif defined(_WIN32) && !defined(__MINGW32__)
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#if defined(LLVM_EXPORTS)
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#define LLVM_ABI __declspec(dllexport)
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#define LLVM_TEMPLATE_ABI
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#define LLVM_EXPORT_TEMPLATE __declspec(dllexport)
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#else
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#define LLVM_ABI __declspec(dllimport)
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#define LLVM_TEMPLATE_ABI __declspec(dllimport)
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#define LLVM_EXPORT_TEMPLATE
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#endif
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#define LLVM_ABI_EXPORT __declspec(dllexport)
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#elif defined(__ELF__) || defined(__MINGW32__) || defined(_AIX) || \
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defined(__MVS__)
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#define LLVM_ABI LLVM_ATTRIBUTE_VISIBILITY_DEFAULT
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#define LLVM_TEMPLATE_ABI LLVM_ATTRIBUTE_VISIBILITY_DEFAULT
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#define LLVM_EXPORT_TEMPLATE
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#define LLVM_ABI_EXPORT LLVM_ATTRIBUTE_VISIBILITY_DEFAULT
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#elif defined(__MACH__) || defined(__WASM__) || defined(__EMSCRIPTEN__)
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#define LLVM_ABI LLVM_ATTRIBUTE_VISIBILITY_DEFAULT
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#define LLVM_TEMPLATE_ABI
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#define LLVM_EXPORT_TEMPLATE
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#define LLVM_ABI_EXPORT LLVM_ATTRIBUTE_VISIBILITY_DEFAULT
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#endif
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#else
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#define LLVM_ABI
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#define LLVM_TEMPLATE_ABI
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#define LLVM_EXPORT_TEMPLATE
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#define LLVM_ABI_EXPORT
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#endif
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#define LLVM_C_ABI LLVM_ABI
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#endif
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#ifndef LLVM_PREFETCH
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#if defined(__GNUC__)
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#define LLVM_PREFETCH(addr, rw, locality) __builtin_prefetch(addr, rw, locality)
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#else
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#define LLVM_PREFETCH(addr, rw, locality)
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#endif
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#endif
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#ifndef LLVM_ATTRIBUTE_USED
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#if __has_attribute(used)
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#define LLVM_ATTRIBUTE_USED __attribute__((__used__))
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#else
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#define LLVM_ATTRIBUTE_USED
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#endif
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#endif
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#if defined(__clang__)
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#define LLVM_DEPRECATED(MSG, FIX) __attribute__((deprecated(MSG, FIX)))
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#else
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#define LLVM_DEPRECATED(MSG, FIX) [[deprecated(MSG)]]
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#endif
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// clang-format off
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#if defined(__clang__) || defined(__GNUC__)
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#define LLVM_SUPPRESS_DEPRECATED_DECLARATIONS_PUSH \
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_Pragma("GCC diagnostic push") \
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_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
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#define LLVM_SUPPRESS_DEPRECATED_DECLARATIONS_POP \
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_Pragma("GCC diagnostic pop")
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#elif defined(_MSC_VER)
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#define LLVM_SUPPRESS_DEPRECATED_DECLARATIONS_PUSH \
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_Pragma("warning(push)") \
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_Pragma("warning(disable : 4996)")
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#define LLVM_SUPPRESS_DEPRECATED_DECLARATIONS_POP \
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_Pragma("warning(pop)")
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#else
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#define LLVM_SUPPRESS_DEPRECATED_DECLARATIONS_PUSH
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#define LLVM_SUPPRESS_DEPRECATED_DECLARATIONS_POP
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#endif
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// clang-format on
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// Indicate that a non-static, non-const C++ member function reinitializes
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// the entire object to a known state, independent of the previous state of
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// the object.
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//
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// The clang-tidy check bugprone-use-after-move recognizes this attribute as a
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// marker that a moved-from object has left the indeterminate state and can be
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// reused.
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#if LLVM_HAS_CPP_ATTRIBUTE(clang::reinitializes)
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#define LLVM_ATTRIBUTE_REINITIALIZES [[clang::reinitializes]]
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#else
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#define LLVM_ATTRIBUTE_REINITIALIZES
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#endif
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// Some compilers warn about unused functions. When a function is sometimes
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// used or not depending on build settings (e.g. a function only called from
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// within "assert"), this attribute can be used to suppress such warnings.
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//
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// However, it shouldn't be used for unused *variables*, as those have a much
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// more portable solution:
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// (void)unused_var_name;
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// Prefer cast-to-void wherever it is sufficient.
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#ifndef LLVM_ATTRIBUTE_UNUSED
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#if __has_attribute(unused)
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#define LLVM_ATTRIBUTE_UNUSED __attribute__((__unused__))
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#else
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#define LLVM_ATTRIBUTE_UNUSED
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#endif
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#endif
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// FIXME: Provide this for PE/COFF targets.
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#if __has_attribute(weak) && !defined(__MINGW32__) && !defined(__CYGWIN__) && \
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!defined(_WIN32)
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#define LLVM_ATTRIBUTE_WEAK __attribute__((__weak__))
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#else
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#define LLVM_ATTRIBUTE_WEAK
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#endif
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#ifndef LLVM_READNONE
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// Prior to clang 3.2, clang did not accept any spelling of
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// __has_attribute(const), so assume it is supported.
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#if defined(__clang__) || defined(__GNUC__)
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// aka 'CONST' but following LLVM Conventions.
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#define LLVM_READNONE __attribute__((__const__))
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#else
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#define LLVM_READNONE
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#endif
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#endif
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#ifndef LLVM_READONLY
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#if __has_attribute(pure) || defined(__GNUC__)
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// aka 'PURE' but following LLVM Conventions.
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#define LLVM_READONLY __attribute__((__pure__))
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#else
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#define LLVM_READONLY
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#endif
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#endif
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#if __has_attribute(minsize)
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#define LLVM_ATTRIBUTE_MINSIZE __attribute__((minsize))
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#else
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#define LLVM_ATTRIBUTE_MINSIZE
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#endif
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#ifndef LLVM_LIKELY
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#if __has_builtin(__builtin_expect) || defined(__GNUC__)
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#define LLVM_LIKELY(EXPR) __builtin_expect((bool)(EXPR), true)
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#define LLVM_UNLIKELY(EXPR) __builtin_expect((bool)(EXPR), false)
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#else
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#define LLVM_LIKELY(EXPR) (EXPR)
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#define LLVM_UNLIKELY(EXPR) (EXPR)
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#endif
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#endif
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/// LLVM_ATTRIBUTE_NOINLINE - On compilers where we have a directive to do so,
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/// mark a method "not for inlining".
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#ifndef LLVM_ATTRIBUTE_NOINLINE
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#if __has_attribute(noinline)
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#define LLVM_ATTRIBUTE_NOINLINE __attribute__((noinline))
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#elif defined(_MSC_VER)
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#define LLVM_ATTRIBUTE_NOINLINE __declspec(noinline)
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#else
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#define LLVM_ATTRIBUTE_NOINLINE
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#endif
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#endif
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/// LLVM_ATTRIBUTE_ALWAYS_INLINE - On compilers where we have a directive to do
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/// so, mark a method "always inline" because it is performance sensitive.
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#ifndef LLVM_ATTRIBUTE_ALWAYS_INLINE
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#if __has_attribute(always_inline)
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#define LLVM_ATTRIBUTE_ALWAYS_INLINE inline __attribute__((always_inline))
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#elif defined(_MSC_VER)
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#define LLVM_ATTRIBUTE_ALWAYS_INLINE __forceinline
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#else
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#define LLVM_ATTRIBUTE_ALWAYS_INLINE inline
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#endif
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#endif
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/// LLVM_ATTRIBUTE_NO_DEBUG - On compilers where we have a directive to do
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/// so, mark a method "no debug" because debug info makes the debugger
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/// experience worse.
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#if __has_attribute(nodebug)
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#define LLVM_ATTRIBUTE_NODEBUG __attribute__((nodebug))
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#else
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#define LLVM_ATTRIBUTE_NODEBUG
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#endif
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#ifndef LLVM_ATTRIBUTE_RETURNS_NONNULL
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#if __has_attribute(returns_nonnull)
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#define LLVM_ATTRIBUTE_RETURNS_NONNULL __attribute__((returns_nonnull))
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#elif defined(_MSC_VER)
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#define LLVM_ATTRIBUTE_RETURNS_NONNULL _Ret_notnull_
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#else
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#define LLVM_ATTRIBUTE_RETURNS_NONNULL
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#endif
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#endif
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/// LLVM_ATTRIBUTE_RESTRICT - Annotates a pointer to tell the compiler that
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/// it is not aliased in the current scope.
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#if defined(__clang__) || defined(__GNUC__) || defined(_MSC_VER)
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#define LLVM_ATTRIBUTE_RESTRICT __restrict
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#else
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#define LLVM_ATTRIBUTE_RESTRICT
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#endif
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/// \macro LLVM_ATTRIBUTE_RETURNS_NOALIAS Used to mark a function as returning a
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/// pointer that does not alias any other valid pointer.
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#ifndef LLVM_ATTRIBUTE_RETURNS_NOALIAS
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#ifdef __GNUC__
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#define LLVM_ATTRIBUTE_RETURNS_NOALIAS __attribute__((__malloc__))
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#elif defined(_MSC_VER)
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#define LLVM_ATTRIBUTE_RETURNS_NOALIAS __declspec(restrict)
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#else
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#define LLVM_ATTRIBUTE_RETURNS_NOALIAS
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#endif
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#endif
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/// LLVM_FALLTHROUGH - Mark fallthrough cases in switch statements.
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#ifndef LLVM_FALLTHROUGH
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#if defined(__cplusplus) && __cplusplus > 201402L && LLVM_HAS_CPP_ATTRIBUTE(fallthrough)
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#define LLVM_FALLTHROUGH [[fallthrough]]
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#elif LLVM_HAS_CPP_ATTRIBUTE(gnu::fallthrough)
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#define LLVM_FALLTHROUGH [[gnu::fallthrough]]
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#elif __has_attribute(fallthrough)
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#define LLVM_FALLTHROUGH __attribute__((fallthrough))
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#elif LLVM_HAS_CPP_ATTRIBUTE(clang::fallthrough)
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#define LLVM_FALLTHROUGH [[clang::fallthrough]]
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#else
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#define LLVM_FALLTHROUGH
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#endif
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#endif
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/// LLVM_REQUIRE_CONSTANT_INITIALIZATION - Apply this to globals to ensure that
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/// they are constant initialized.
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#if LLVM_HAS_CPP_ATTRIBUTE(clang::require_constant_initialization)
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#define LLVM_REQUIRE_CONSTANT_INITIALIZATION \
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[[clang::require_constant_initialization]]
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#else
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#define LLVM_REQUIRE_CONSTANT_INITIALIZATION
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#endif
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/// LLVM_GSL_OWNER - Apply this to owning classes like SmallVector to enable
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/// lifetime warnings.
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#if LLVM_HAS_CPP_ATTRIBUTE(gsl::Owner)
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#define LLVM_GSL_OWNER [[gsl::Owner]]
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#else
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#define LLVM_GSL_OWNER
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#endif
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/// LLVM_GSL_POINTER - Apply this to non-owning classes like
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/// std::string_view to enable lifetime warnings.
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#if LLVM_HAS_CPP_ATTRIBUTE(gsl::Pointer)
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#define LLVM_GSL_POINTER [[gsl::Pointer]]
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#else
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#define LLVM_GSL_POINTER
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#endif
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#if LLVM_HAS_CPP_ATTRIBUTE(clang::lifetimebound)
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#define LLVM_LIFETIME_BOUND [[clang::lifetimebound]]
|
|
#else
|
|
#define LLVM_LIFETIME_BOUND
|
|
#endif
|
|
|
|
#if LLVM_HAS_CPP_ATTRIBUTE(nodiscard) >= 201907L
|
|
#define LLVM_CTOR_NODISCARD [[nodiscard]]
|
|
#else
|
|
#define LLVM_CTOR_NODISCARD
|
|
#endif
|
|
|
|
/// LLVM_EXTENSION - Support compilers where we have a keyword to suppress
|
|
/// pedantic diagnostics.
|
|
#ifndef LLVM_EXTENSION
|
|
#ifdef __GNUC__
|
|
#define LLVM_EXTENSION __extension__
|
|
#else
|
|
#define LLVM_EXTENSION
|
|
#endif
|
|
#endif
|
|
|
|
/// LLVM_BUILTIN_UNREACHABLE - On compilers which support it, expands
|
|
/// to an expression which states that it is undefined behavior for the
|
|
/// compiler to reach this point. Otherwise is not defined.
|
|
///
|
|
/// '#else' is intentionally left out so that other macro logic (e.g.,
|
|
/// LLVM_ASSUME_ALIGNED and wpi_unreachable()) can detect whether
|
|
/// LLVM_BUILTIN_UNREACHABLE has a definition.
|
|
#ifndef LLVM_BUILTIN_UNREACHABLE
|
|
#if __has_builtin(__builtin_unreachable) || defined(__GNUC__)
|
|
# define LLVM_BUILTIN_UNREACHABLE __builtin_unreachable()
|
|
#elif defined(_MSC_VER)
|
|
# define LLVM_BUILTIN_UNREACHABLE __assume(false)
|
|
#endif
|
|
#endif
|
|
|
|
/// LLVM_BUILTIN_TRAP - On compilers which support it, expands to an expression
|
|
/// which causes the program to exit abnormally.
|
|
#ifndef LLVM_BUILTIN_TRAP
|
|
#if __has_builtin(__builtin_trap) || defined(__GNUC__)
|
|
# define LLVM_BUILTIN_TRAP __builtin_trap()
|
|
#elif defined(_MSC_VER)
|
|
// The __debugbreak intrinsic is supported by MSVC, does not require forward
|
|
// declarations involving platform-specific typedefs (unlike RaiseException),
|
|
// results in a call to vectored exception handlers, and encodes to a short
|
|
// instruction that still causes the trapping behavior we want.
|
|
# define LLVM_BUILTIN_TRAP __debugbreak()
|
|
#else
|
|
# define LLVM_BUILTIN_TRAP *(volatile int*)0x11 = 0
|
|
#endif
|
|
#endif
|
|
|
|
/// LLVM_BUILTIN_DEBUGTRAP - On compilers which support it, expands to
|
|
/// an expression which causes the program to break while running
|
|
/// under a debugger.
|
|
#ifndef LLVM_BUILTIN_DEBUGTRAP
|
|
#if __has_builtin(__builtin_debugtrap)
|
|
# define LLVM_BUILTIN_DEBUGTRAP __builtin_debugtrap()
|
|
#elif defined(_MSC_VER)
|
|
// The __debugbreak intrinsic is supported by MSVC and breaks while
|
|
// running under the debugger, and also supports invoking a debugger
|
|
// when the OS is configured appropriately.
|
|
# define LLVM_BUILTIN_DEBUGTRAP __debugbreak()
|
|
#else
|
|
// Just continue execution when built with compilers that have no
|
|
// support. This is a debugging aid and not intended to force the
|
|
// program to abort if encountered.
|
|
# define LLVM_BUILTIN_DEBUGTRAP
|
|
#endif
|
|
#endif
|
|
|
|
/// \macro LLVM_ASSUME_ALIGNED
|
|
/// Returns a pointer with an assumed alignment.
|
|
#ifndef LLVM_ASSUME_ALIGNED
|
|
#if __has_builtin(__builtin_assume_aligned) || defined(__GNUC__)
|
|
# define LLVM_ASSUME_ALIGNED(p, a) __builtin_assume_aligned(p, a)
|
|
#elif defined(LLVM_BUILTIN_UNREACHABLE)
|
|
# define LLVM_ASSUME_ALIGNED(p, a) \
|
|
(((uintptr_t(p) % (a)) == 0) ? (p) : (LLVM_BUILTIN_UNREACHABLE, (p)))
|
|
#else
|
|
# define LLVM_ASSUME_ALIGNED(p, a) (p)
|
|
#endif
|
|
#endif
|
|
|
|
/// \macro LLVM_PACKED
|
|
/// Used to specify a packed structure.
|
|
/// LLVM_PACKED(
|
|
/// struct A {
|
|
/// int i;
|
|
/// int j;
|
|
/// int k;
|
|
/// long long l;
|
|
/// });
|
|
///
|
|
/// LLVM_PACKED_START
|
|
/// struct B {
|
|
/// int i;
|
|
/// int j;
|
|
/// int k;
|
|
/// long long l;
|
|
/// };
|
|
/// LLVM_PACKED_END
|
|
#ifndef LLVM_PACKED
|
|
#ifdef _MSC_VER
|
|
# define LLVM_PACKED(d) __pragma(pack(push, 1)) d __pragma(pack(pop))
|
|
# define LLVM_PACKED_START __pragma(pack(push, 1))
|
|
# define LLVM_PACKED_END __pragma(pack(pop))
|
|
#else
|
|
# define LLVM_PACKED(d) d __attribute__((packed))
|
|
# define LLVM_PACKED_START _Pragma("pack(push, 1)")
|
|
# define LLVM_PACKED_END _Pragma("pack(pop)")
|
|
#endif
|
|
#endif
|
|
|
|
/// \macro LLVM_MEMORY_SANITIZER_BUILD
|
|
/// Whether LLVM itself is built with MemorySanitizer instrumentation.
|
|
#if __has_feature(memory_sanitizer)
|
|
# define LLVM_MEMORY_SANITIZER_BUILD 1
|
|
# include <sanitizer/msan_interface.h>
|
|
# define LLVM_NO_SANITIZE_MEMORY_ATTRIBUTE __attribute__((no_sanitize_memory))
|
|
#else
|
|
# define LLVM_MEMORY_SANITIZER_BUILD 0
|
|
# define __msan_allocated_memory(p, size)
|
|
# define __msan_unpoison(p, size)
|
|
# define LLVM_NO_SANITIZE_MEMORY_ATTRIBUTE
|
|
#endif
|
|
|
|
/// \macro LLVM_ADDRESS_SANITIZER_BUILD
|
|
/// Whether LLVM itself is built with AddressSanitizer instrumentation.
|
|
#if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
|
|
# define LLVM_ADDRESS_SANITIZER_BUILD 1
|
|
#if __has_include(<sanitizer/asan_interface.h>)
|
|
# include <sanitizer/asan_interface.h>
|
|
#else
|
|
// These declarations exist to support ASan with MSVC. If MSVC eventually ships
|
|
// asan_interface.h in their headers, then we can remove this.
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
void __asan_poison_memory_region(void const volatile *addr, size_t size);
|
|
void __asan_unpoison_memory_region(void const volatile *addr, size_t size);
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
#endif
|
|
#endif
|
|
#else
|
|
# define LLVM_ADDRESS_SANITIZER_BUILD 0
|
|
# define __asan_poison_memory_region(p, size)
|
|
# define __asan_unpoison_memory_region(p, size)
|
|
#endif
|
|
|
|
/// \macro LLVM_HWADDRESS_SANITIZER_BUILD
|
|
/// Whether LLVM itself is built with HWAddressSanitizer instrumentation.
|
|
#if __has_feature(hwaddress_sanitizer)
|
|
#define LLVM_HWADDRESS_SANITIZER_BUILD 1
|
|
#else
|
|
#define LLVM_HWADDRESS_SANITIZER_BUILD 0
|
|
#endif
|
|
|
|
/// \macro LLVM_THREAD_SANITIZER_BUILD
|
|
/// Whether LLVM itself is built with ThreadSanitizer instrumentation.
|
|
#if __has_feature(thread_sanitizer) || defined(__SANITIZE_THREAD__)
|
|
# define LLVM_THREAD_SANITIZER_BUILD 1
|
|
#else
|
|
# define LLVM_THREAD_SANITIZER_BUILD 0
|
|
#endif
|
|
|
|
#if LLVM_THREAD_SANITIZER_BUILD
|
|
// Thread Sanitizer is a tool that finds races in code.
|
|
// See http://code.google.com/p/data-race-test/wiki/DynamicAnnotations .
|
|
// tsan detects these exact functions by name.
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
void AnnotateHappensAfter(const char *file, int line, const volatile void *cv);
|
|
void AnnotateHappensBefore(const char *file, int line, const volatile void *cv);
|
|
void AnnotateIgnoreWritesBegin(const char *file, int line);
|
|
void AnnotateIgnoreWritesEnd(const char *file, int line);
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
// This marker is used to define a happens-before arc. The race detector will
|
|
// infer an arc from the begin to the end when they share the same pointer
|
|
// argument.
|
|
# define TsanHappensBefore(cv) AnnotateHappensBefore(__FILE__, __LINE__, cv)
|
|
|
|
// This marker defines the destination of a happens-before arc.
|
|
# define TsanHappensAfter(cv) AnnotateHappensAfter(__FILE__, __LINE__, cv)
|
|
|
|
// Ignore any races on writes between here and the next TsanIgnoreWritesEnd.
|
|
# define TsanIgnoreWritesBegin() AnnotateIgnoreWritesBegin(__FILE__, __LINE__)
|
|
|
|
// Resume checking for racy writes.
|
|
# define TsanIgnoreWritesEnd() AnnotateIgnoreWritesEnd(__FILE__, __LINE__)
|
|
#else
|
|
# define TsanHappensBefore(cv)
|
|
# define TsanHappensAfter(cv)
|
|
# define TsanIgnoreWritesBegin()
|
|
# define TsanIgnoreWritesEnd()
|
|
#endif
|
|
|
|
/// \macro LLVM_NO_SANITIZE
|
|
/// Disable a particular sanitizer for a function.
|
|
#ifndef LLVM_NO_SANITIZE
|
|
#if __has_attribute(no_sanitize)
|
|
#define LLVM_NO_SANITIZE(KIND) __attribute__((no_sanitize(KIND)))
|
|
#else
|
|
#define LLVM_NO_SANITIZE(KIND)
|
|
#endif
|
|
#endif
|
|
|
|
/// Mark debug helper function definitions like dump() that should not be
|
|
/// stripped from debug builds.
|
|
/// Note that you should also surround dump() functions with
|
|
/// `#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)` so they do always
|
|
/// get stripped in release builds.
|
|
// FIXME: Move this to a private config.h as it's not usable in public headers.
|
|
#ifndef LLVM_DUMP_METHOD
|
|
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
|
|
#define LLVM_DUMP_METHOD LLVM_ATTRIBUTE_NOINLINE LLVM_ATTRIBUTE_USED
|
|
#else
|
|
#define LLVM_DUMP_METHOD LLVM_ATTRIBUTE_NOINLINE
|
|
#endif
|
|
#endif
|
|
|
|
/// \macro LLVM_PRETTY_FUNCTION
|
|
/// Gets a user-friendly looking function signature for the current scope
|
|
/// using the best available method on each platform. The exact format of the
|
|
/// resulting string is implementation specific and non-portable, so this should
|
|
/// only be used, for example, for logging or diagnostics.
|
|
#ifndef LLVM_PRETTY_FUNCTION
|
|
#if defined(_MSC_VER)
|
|
#define LLVM_PRETTY_FUNCTION __FUNCSIG__
|
|
#elif defined(__GNUC__) || defined(__clang__)
|
|
#define LLVM_PRETTY_FUNCTION __PRETTY_FUNCTION__
|
|
#else
|
|
#define LLVM_PRETTY_FUNCTION __func__
|
|
#endif
|
|
#endif
|
|
|
|
/// \macro LLVM_THREAD_LOCAL
|
|
/// A thread-local storage specifier which can be used with globals,
|
|
/// extern globals, and static globals.
|
|
///
|
|
/// This is essentially an extremely restricted analog to C++11's thread_local
|
|
/// support. It uses thread_local if available, falling back on gcc __thread
|
|
/// if not. __thread doesn't support many of the C++11 thread_local's
|
|
/// features. You should only use this for PODs that you can statically
|
|
/// initialize to some constant value. In almost all circumstances this is most
|
|
/// appropriate for use with a pointer, integer, or small aggregation of
|
|
/// pointers and integers.
|
|
#if __has_feature(cxx_thread_local) || defined(_MSC_VER)
|
|
#define LLVM_THREAD_LOCAL thread_local
|
|
#else
|
|
// Clang, GCC, and other compatible compilers used __thread prior to C++11 and
|
|
// we only need the restricted functionality that provides.
|
|
#define LLVM_THREAD_LOCAL __thread
|
|
#endif
|
|
|
|
/// \macro LLVM_ENABLE_EXCEPTIONS
|
|
/// Whether LLVM is built with exception support.
|
|
#if __has_feature(cxx_exceptions)
|
|
#define LLVM_ENABLE_EXCEPTIONS 1
|
|
#elif defined(__GNUC__) && defined(__EXCEPTIONS)
|
|
#define LLVM_ENABLE_EXCEPTIONS 1
|
|
#elif defined(_MSC_VER) && defined(_CPPUNWIND)
|
|
#define LLVM_ENABLE_EXCEPTIONS 1
|
|
#endif
|
|
|
|
/// \macro LLVM_NO_PROFILE_INSTRUMENT_FUNCTION
|
|
/// Disable the profile instrument for a function.
|
|
#if __has_attribute(no_profile_instrument_function)
|
|
#define LLVM_NO_PROFILE_INSTRUMENT_FUNCTION \
|
|
__attribute__((no_profile_instrument_function))
|
|
#else
|
|
#define LLVM_NO_PROFILE_INSTRUMENT_FUNCTION
|
|
#endif
|
|
|
|
/// \macro LLVM_PREFERRED_TYPE
|
|
/// Adjust type of bit-field in debug info.
|
|
#if __has_attribute(preferred_type)
|
|
#define LLVM_PREFERRED_TYPE(T) __attribute__((preferred_type(T)))
|
|
#else
|
|
#define LLVM_PREFERRED_TYPE(T)
|
|
#endif
|
|
|
|
#endif
|