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Add __attribute__((malloc) to allocator and remove unused code 

* include/bits/valarray_array.h (__valarray_get_memory): Remove.
	(__valarray_get_storage): Call operator new directly. Remove ignored
	top-level restrict qualifier and add malloc attribute instead.
	(_Array<_Tp>::_Array(size_t)): Remove unused constructor.

From-SVN: r260230
This commit is contained in:
Jonathan Wakely 2018-05-14 16:35:12 +01:00 committed by Jonathan Wakely
parent 6bfbebb063
commit cd2f262b2f
2 changed files with 11 additions and 16 deletions
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5
libstdc++-v3/ChangeLog
View File

@ -1,5 +1,10 @@
2018-05-14 Jonathan Wakely <jwakely@redhat.com>
* include/bits/valarray_array.h (__valarray_get_memory): Remove.
(__valarray_get_storage): Call operator new directly. Remove ignored
top-level restrict qualifier and add malloc attribute instead.
(_Array<_Tp>::_Array(size_t)): Remove unused constructor.
PR libstdc++/67554
* include/bits/valarray_array.h (_Array_copy_ctor<_Tp, true>)
(_Array_copier<_Tp, true>): Do not pass null pointers to memcpy.

22
libstdc++-v3/include/bits/valarray_array.h
View File

@ -47,18 +47,15 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// Helper functions on raw pointers
//
// We get memory by the old fashion way
inline void*
__valarray_get_memory(size_t __n)
{ return operator new(__n); }
// We get memory the old fashioned way
template<typename _Tp>
_Tp*
__valarray_get_storage(size_t) __attribute__((__malloc__));
template<typename _Tp>
inline _Tp*__restrict__
inline _Tp*
__valarray_get_storage(size_t __n)
{
return static_cast<_Tp*__restrict__>
(std::__valarray_get_memory(__n * sizeof(_Tp)));
}
{ return static_cast<_Tp*>(operator new(__n * sizeof(_Tp))); }
// Return memory to the system
inline void
@ -410,7 +407,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename _Tp>
struct _Array
{
explicit _Array(size_t);
explicit _Array(_Tp* const __restrict__);
explicit _Array(const valarray<_Tp>&);
_Array(const _Tp* __restrict__, size_t);
@ -503,12 +499,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
__dst._M_data, __j._M_data);
}
template<typename _Tp>
inline
_Array<_Tp>::_Array(size_t __n)
: _M_data(__valarray_get_storage<_Tp>(__n))
{ std::__valarray_default_construct(_M_data, _M_data + __n); }
template<typename _Tp>
inline
_Array<_Tp>::_Array(_Tp* const __restrict__ __p)