mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 19:52:54 +01:00
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
//===-- llvm/Support/Compiler.h - Compiler abstraction support --*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines several macros, based on the current compiler. This allows
|
|
// use of compiler-specific features in a way that remains portable.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_SUPPORT_COMPILER_H
|
|
#define LLVM_SUPPORT_COMPILER_H
|
|
|
|
// The VISIBILITY_HIDDEN macro, used for marking classes with the GCC-specific
|
|
// visibility("hidden") attribute.
|
|
#if (__GNUC__ >= 4) && !defined(__MINGW32__)
|
|
#define VISIBILITY_HIDDEN __attribute__ ((visibility("hidden")))
|
|
#else
|
|
#define VISIBILITY_HIDDEN
|
|
#endif
|
|
|
|
#if (__GNUC__ >= 4)
|
|
#define ATTRIBUTE_USED __attribute__((__used__))
|
|
#else
|
|
#define ATTRIBUTE_USED
|
|
#endif
|
|
|
|
// C++ doesn't support 'extern template' of template specializations. GCC does,
|
|
// but requires __extension__ before it. In the header, use this:
|
|
// EXTERN_TEMPLATE_INSTANTIATION(class foo<bar>);
|
|
// in the .cpp file, use this:
|
|
// TEMPLATE_INSTANTIATION(class foo<bar>);
|
|
#ifdef __GNUC__
|
|
#define EXTERN_TEMPLATE_INSTANTIATION(X) __extension__ extern template X
|
|
#define TEMPLATE_INSTANTIATION(X) template X
|
|
#else
|
|
#define EXTERN_TEMPLATE_INSTANTIATION(X)
|
|
#define TEMPLATE_INSTANTIATION(X)
|
|
#endif
|
|
|
|
// DISABLE_INLINE - On compilers where we have a directive to do so, mark a
|
|
// method "not for inlining".
|
|
#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
|
|
#define DISABLE_INLINE __attribute__((noinline))
|
|
#else
|
|
#define DISABLE_INLINE
|
|
#endif
|
|
|
|
#endif
|