94 lines
3 KiB
C++
94 lines
3 KiB
C++
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//===--- DemangleConfig.h ---------------------------------------*- 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-FileCopyrightText: Part of the LLVM Project
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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 contains a variety of feature test macros copied from
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// include/llvm/Support/Compiler.h so that LLVMDemangle does not need to take
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// a dependency on LLVMSupport.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEMANGLE_COMPILER_H
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#define LLVM_DEMANGLE_COMPILER_H
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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_cpp_attribute
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#define __has_cpp_attribute(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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#ifndef DEMANGLE_GNUC_PREREQ
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#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
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#define DEMANGLE_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 DEMANGLE_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 DEMANGLE_GNUC_PREREQ(maj, min, patch) 0
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#endif
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#endif
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#if __has_attribute(used) || DEMANGLE_GNUC_PREREQ(3, 1, 0)
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#define DEMANGLE_ATTRIBUTE_USED __attribute__((__used__))
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#else
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#define DEMANGLE_ATTRIBUTE_USED
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#endif
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#if __has_builtin(__builtin_unreachable) || DEMANGLE_GNUC_PREREQ(4, 5, 0)
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#define DEMANGLE_UNREACHABLE __builtin_unreachable()
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#elif defined(_MSC_VER)
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#define DEMANGLE_UNREACHABLE __assume(false)
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#else
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#define DEMANGLE_UNREACHABLE
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#endif
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#if __has_attribute(noinline) || DEMANGLE_GNUC_PREREQ(3, 4, 0)
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#define DEMANGLE_ATTRIBUTE_NOINLINE __attribute__((noinline))
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#elif defined(_MSC_VER)
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#define DEMANGLE_ATTRIBUTE_NOINLINE __declspec(noinline)
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#else
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#define DEMANGLE_ATTRIBUTE_NOINLINE
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#endif
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#if !defined(NDEBUG)
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#define DEMANGLE_DUMP_METHOD DEMANGLE_ATTRIBUTE_NOINLINE DEMANGLE_ATTRIBUTE_USED
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#else
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#define DEMANGLE_DUMP_METHOD DEMANGLE_ATTRIBUTE_NOINLINE
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#endif
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#if __cplusplus > 201402L && __has_cpp_attribute(fallthrough)
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#define DEMANGLE_FALLTHROUGH [[fallthrough]]
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#elif __has_cpp_attribute(gnu::fallthrough)
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#define DEMANGLE_FALLTHROUGH [[gnu::fallthrough]]
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#elif !__cplusplus
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// Workaround for llvm.org/PR23435, since clang 3.6 and below emit a spurious
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// error when __has_cpp_attribute is given a scoped attribute in C mode.
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#define DEMANGLE_FALLTHROUGH
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#elif __has_cpp_attribute(clang::fallthrough)
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#define DEMANGLE_FALLTHROUGH [[clang::fallthrough]]
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#else
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#define DEMANGLE_FALLTHROUGH
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#endif
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#define DEMANGLE_NAMESPACE_BEGIN namespace llvm { namespace itanium_demangle {
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#define DEMANGLE_NAMESPACE_END } }
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#endif
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