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mark operator new(std::nothrow) as noalias (aka __attribute__((malloc))

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llvm-svn: 159359
This commit is contained in:
Nuno Lopes 2012-06-28 16:47:34 +00:00
parent ee3d99f6be
commit 6317bfb26a
2 changed files with 8 additions and 2 deletions
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6
libcxx/include/__config
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@ -391,6 +391,12 @@ template <unsigned> struct __static_assert_check {};
#define _LIBCPP_CONSTEXPR constexpr
#endif
#ifdef __GNUC__
#define _NOALIAS __attribute__((malloc))
#else
#define _NOALIAS
#endif
#ifndef __has_feature
#define __has_feature(__x) 0
#endif

4
libcxx/include/new
View File

@ -96,7 +96,7 @@ _LIBCPP_VISIBLE void* operator new(std::size_t __sz)
throw(std::bad_alloc)
#endif
;
_LIBCPP_VISIBLE void* operator new(std::size_t __sz, const std::nothrow_t&) _NOEXCEPT;
_LIBCPP_VISIBLE void* operator new(std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
_LIBCPP_VISIBLE void operator delete(void* __p) _NOEXCEPT;
_LIBCPP_VISIBLE void operator delete(void* __p, const std::nothrow_t&) _NOEXCEPT;
@ -105,7 +105,7 @@ _LIBCPP_VISIBLE void* operator new[](std::size_t __sz)
throw(std::bad_alloc)
#endif
;
_LIBCPP_VISIBLE void* operator new[](std::size_t __sz, const std::nothrow_t&) _NOEXCEPT;
_LIBCPP_VISIBLE void* operator new[](std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
_LIBCPP_VISIBLE void operator delete[](void* __p) _NOEXCEPT;
_LIBCPP_VISIBLE void operator delete[](void* __p, const std::nothrow_t&) _NOEXCEPT;