re PR libstdc++/41763 (valarray_array.h seems to overuse __restrict__)
2009-10-20 Paolo Carlini <paolo.carlini@oracle.com> PR libstdc++/41763 * include/bits/valarray_array.h (__valarray_default_construct, __valarray_fill_construct, __valarray_copy_construct, __valarray_sum __valarray_destroy_elements, __valarray_product): Do not qualify with __restrict__ pointers accessing data also accessed by other pointers. From-SVN: r153039
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Paolo Carlini
Paolo Carlini
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ddd0c78101
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b6a182f28e
2 changed files with 21 additions and 18 deletions
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@ -1,3 +1,11 @@
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2009-10-20 Paolo Carlini <paolo.carlini@oracle.com>
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PR libstdc++/41763
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* include/bits/valarray_array.h (__valarray_default_construct,
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__valarray_fill_construct, __valarray_copy_construct, __valarray_sum
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__valarray_destroy_elements, __valarray_product): Do not qualify with
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__restrict__ pointers accessing data also accessed by other pointers.
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2009-10-20 Paolo Carlini <paolo.carlini@oracle.com>
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* include/bits/basic_string.h (_S_construct(const _CharT*, size_type,
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@ -1,7 +1,7 @@
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// The template and inlines for the -*- C++ -*- internal _Array helper class.
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// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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// 2006, 2007, 2009
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// 2006, 2007, 2008, 2009
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// Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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@ -73,7 +73,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
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// Please note that this isn't exception safe. But
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// valarrays aren't required to be exception safe.
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inline static void
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_S_do_it(_Tp* __restrict__ __b, _Tp* __restrict__ __e)
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_S_do_it(_Tp* __b, _Tp* __e)
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{
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while (__b != __e)
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new(__b++) _Tp();
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@ -85,13 +85,13 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
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{
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// For fundamental types, it suffices to say 'memset()'
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inline static void
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_S_do_it(_Tp* __restrict__ __b, _Tp* __restrict__ __e)
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_S_do_it(_Tp* __b, _Tp* __e)
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{ __builtin_memset(__b, 0, (__e - __b) * sizeof(_Tp)); }
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};
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template<typename _Tp>
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inline void
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__valarray_default_construct(_Tp* __restrict__ __b, _Tp* __restrict__ __e)
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__valarray_default_construct(_Tp* __b, _Tp* __e)
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{
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_Array_default_ctor<_Tp, __is_scalar<_Tp>::__value>::_S_do_it(__b, __e);
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}
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@ -105,7 +105,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
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// Please note that this isn't exception safe. But
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// valarrays aren't required to be exception safe.
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inline static void
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_S_do_it(_Tp* __restrict__ __b, _Tp* __restrict__ __e, const _Tp __t)
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_S_do_it(_Tp* __b, _Tp* __e, const _Tp __t)
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{
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while (__b != __e)
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new(__b++) _Tp(__t);
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@ -116,7 +116,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
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struct _Array_init_ctor<_Tp, true>
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{
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inline static void
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_S_do_it(_Tp* __restrict__ __b, _Tp* __restrict__ __e, const _Tp __t)
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_S_do_it(_Tp* __b, _Tp* __e, const _Tp __t)
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{
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while (__b != __e)
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*__b++ = __t;
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@ -125,8 +125,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
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template<typename _Tp>
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inline void
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__valarray_fill_construct(_Tp* __restrict__ __b, _Tp* __restrict__ __e,
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const _Tp __t)
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__valarray_fill_construct(_Tp* __b, _Tp* __e, const _Tp __t)
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{
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_Array_init_ctor<_Tp, __is_pod(_Tp)>::_S_do_it(__b, __e, __t);
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}
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@ -141,8 +140,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
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// Please note that this isn't exception safe. But
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// valarrays aren't required to be exception safe.
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inline static void
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_S_do_it(const _Tp* __restrict__ __b, const _Tp* __restrict__ __e,
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_Tp* __restrict__ __o)
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_S_do_it(const _Tp* __b, const _Tp* __e, _Tp* __restrict__ __o)
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{
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while (__b != __e)
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new(__o++) _Tp(*__b++);
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@ -153,15 +151,13 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
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struct _Array_copy_ctor<_Tp, true>
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{
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inline static void
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_S_do_it(const _Tp* __restrict__ __b, const _Tp* __restrict__ __e,
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_Tp* __restrict__ __o)
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_S_do_it(const _Tp* __b, const _Tp* __e, _Tp* __restrict__ __o)
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{ __builtin_memcpy(__o, __b, (__e - __b) * sizeof(_Tp)); }
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};
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template<typename _Tp>
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inline void
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__valarray_copy_construct(const _Tp* __restrict__ __b,
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const _Tp* __restrict__ __e,
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__valarray_copy_construct(const _Tp* __b, const _Tp* __e,
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_Tp* __restrict__ __o)
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{
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_Array_copy_ctor<_Tp, __is_pod(_Tp)>::_S_do_it(__b, __e, __o);
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@ -205,7 +201,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
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// Do the necessary cleanup when we're done with arrays.
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template<typename _Tp>
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inline void
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__valarray_destroy_elements(_Tp* __restrict__ __b, _Tp* __restrict__ __e)
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__valarray_destroy_elements(_Tp* __b, _Tp* __e)
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{
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if (!__is_pod(_Tp))
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while (__b != __e)
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@ -347,7 +343,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
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//
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template<typename _Tp>
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inline _Tp
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__valarray_sum(const _Tp* __restrict__ __f, const _Tp* __restrict__ __l)
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__valarray_sum(const _Tp* __f, const _Tp* __l)
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{
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_Tp __r = _Tp();
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while (__f != __l)
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@ -358,8 +354,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
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// Compute the product of all elements in range [__f, __l)
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template<typename _Tp>
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inline _Tp
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__valarray_product(const _Tp* __restrict__ __f,
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const _Tp* __restrict__ __l)
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__valarray_product(const _Tp* __f, const _Tp* __l)
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{
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_Tp __r = _Tp(1);
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while (__f != __l)
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