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Reverting an old optimization that conflicts with the new allocator model, and causes some test casees to compile that shouldn't.

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llvm-svn: 122830
This commit is contained in:
Howard Hinnant 2011-01-04 19:53:31 +00:00
parent e45a2389ce
commit 36fd9f96cf
4 changed files with 1 additions and 91 deletions
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39
libcxx/include/__split_buffer
View File

@ -98,11 +98,7 @@ public:
_LIBCPP_INLINE_VISIBILITY void pop_back() {__destruct_at_end(__end_-1);}
void __construct_at_end(size_type __n);
void __construct_at_end(size_type __n, false_type);
void __construct_at_end(size_type __n, true_type);
void __construct_at_end(size_type __n, const_reference __x);
void __construct_at_end(size_type __n, const_reference __x, false_type);
void __construct_at_end(size_type __n, const_reference __x, true_type);
template <class _InputIter>
typename enable_if
<
@ -192,16 +188,8 @@ __split_buffer<_Tp, _Allocator>::__invariants() const
// Precondition: size() + __n <= capacity()
// Postcondition: size() == size() + __n
template <class _Tp, class _Allocator>
_LIBCPP_INLINE_VISIBILITY inline
void
__split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n)
{
__construct_at_end(__n, __is_zero_default_constructible<value_type>());
}
template <class _Tp, class _Allocator>
void
__split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n, false_type)
{
__alloc_rr& __a = this->__alloc();
do
@ -212,15 +200,6 @@ __split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n, false_type)
} while (__n > 0);
}
template <class _Tp, class _Allocator>
_LIBCPP_INLINE_VISIBILITY inline
void
__split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n, true_type)
{
_STD::memset(this->__end_, 0, __n*sizeof(value_type));
this->__end_ += __n;
}
// Copy constructs __n objects starting at __end_ from __x
// throws if construction throws
// Precondition: __n > 0
@ -228,17 +207,8 @@ __split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n, true_type)
// Postcondition: size() == old size() + __n
// Postcondition: [i] == __x for all i in [size() - __n, __n)
template <class _Tp, class _Allocator>
_LIBCPP_INLINE_VISIBILITY inline
void
__split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x)
{
__construct_at_end(__n, __x, integral_constant<bool, is_trivially_copy_constructible<value_type>::value &&
is_trivially_copy_assignable<value_type>::value>());
}
template <class _Tp, class _Allocator>
void
__split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x, false_type)
{
__alloc_rr& __a = this->__alloc();
do
@ -249,15 +219,6 @@ __split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n, const_referen
} while (__n > 0);
}
template <class _Tp, class _Allocator>
_LIBCPP_INLINE_VISIBILITY inline
void
__split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x, true_type)
{
_STD::fill_n(this->__end_, __n, __x);
this->__end_ += __n;
}
template <class _Tp, class _Allocator>
template <class _InputIter>
typename enable_if

4
libcxx/include/string
View File

@ -3641,10 +3641,6 @@ swap(basic_string<_CharT, _Traits, _Allocator>& __lhs, basic_string<_CharT, _Tra
__lhs.swap(__rhs);
}
template<class _CharT, class _Traits, class _Allocator>
struct __is_zero_default_constructible<basic_string<_CharT, _Traits, _Allocator> >
: public integral_constant<bool, __is_zero_default_constructible<_Allocator>::value> {};
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
typedef basic_string<char16_t> u16string;

3
libcxx/include/type_traits
View File

@ -2302,9 +2302,6 @@ template <class _Tp> struct _LIBCPP_VISIBLE is_pod
#endif // _LIBCPP_HAS_TYPE_TRAITS
template <class _Tp> struct __is_zero_default_constructible
: public integral_constant<bool, is_scalar<_Tp>::value || is_empty<_Tp>::value> {};
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void

46
libcxx/include/vector
View File

@ -624,14 +624,8 @@ private:
void allocate(size_type __n);
void deallocate();
_LIBCPP_INLINE_VISIBILITY size_type __recommend(size_type __new_size) const;
_LIBCPP_INLINE_VISIBILITY void __construct_at_end(size_type __n);
void __construct_at_end(size_type __n, false_type);
_LIBCPP_INLINE_VISIBILITY void __construct_at_end(size_type __n, true_type);
_LIBCPP_INLINE_VISIBILITY
void __construct_at_end(size_type __n);
void __construct_at_end(size_type __n, const_reference __x);
void __construct_at_end(size_type __n, const_reference __x, false_type);
_LIBCPP_INLINE_VISIBILITY
void __construct_at_end(size_type __n, const_reference __x, true_type);
template <class _ForwardIterator>
typename enable_if
<
@ -741,16 +735,8 @@ vector<_Tp, _Allocator>::__recommend(size_type __new_size) const
// Precondition: size() + __n <= capacity()
// Postcondition: size() == size() + __n
template <class _Tp, class _Allocator>
_LIBCPP_INLINE_VISIBILITY inline
void
vector<_Tp, _Allocator>::__construct_at_end(size_type __n)
{
__construct_at_end(__n, __is_zero_default_constructible<value_type>());
}
template <class _Tp, class _Allocator>
void
vector<_Tp, _Allocator>::__construct_at_end(size_type __n, false_type)
{
allocator_type& __a = this->__alloc();
do
@ -761,15 +747,6 @@ vector<_Tp, _Allocator>::__construct_at_end(size_type __n, false_type)
} while (__n > 0);
}
template <class _Tp, class _Allocator>
_LIBCPP_INLINE_VISIBILITY inline
void
vector<_Tp, _Allocator>::__construct_at_end(size_type __n, true_type)
{
_STD::memset(this->__end_, 0, __n*sizeof(value_type));
this->__end_ += __n;
}
// Copy constructs __n objects starting at __end_ from __x
// throws if construction throws
// Precondition: __n > 0
@ -780,14 +757,6 @@ template <class _Tp, class _Allocator>
_LIBCPP_INLINE_VISIBILITY inline
void
vector<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x)
{
__construct_at_end(__n, __x, integral_constant<bool, is_trivially_copy_constructible<value_type>::value &&
is_trivially_copy_assignable<value_type>::value>());
}
template <class _Tp, class _Allocator>
void
vector<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x, false_type)
{
allocator_type& __a = this->__alloc();
do
@ -798,15 +767,6 @@ vector<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x,
} while (__n > 0);
}
template <class _Tp, class _Allocator>
_LIBCPP_INLINE_VISIBILITY inline
void
vector<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x, true_type)
{
_STD::fill_n(this->__end_, __n, __x);
this->__end_ += __n;
}
template <class _Tp, class _Allocator>
template <class _ForwardIterator>
typename enable_if
@ -2764,10 +2724,6 @@ struct _LIBCPP_VISIBLE hash<vector<bool, _Allocator> >
{return __vec.__hash_code();}
};
template <class _Tp, class _Allocator>
struct __is_zero_default_constructible<vector<_Tp, _Allocator> >
: public integral_constant<bool, __is_zero_default_constructible<_Allocator>::value> {};
template <class _Tp, class _Allocator>
_LIBCPP_INLINE_VISIBILITY inline
bool