From: Ken Matsui <kmatsui@cs.washington.edu>
To: Ken Matsui <kmatsui@gcc.gnu.org>
Cc: gcc-patches@gcc.gnu.org, libstdc++@gcc.gnu.org,
Jonathan Wakely <jwakely@redhat.com>
Subject: Re: [PATCH v3 1/2] c++, libstdc++: Implement __is_pointer built-in trait
Date: Wed, 12 Jul 2023 18:15:55 -0700 [thread overview]
Message-ID: <CAML+3pU4u+FSAB+P6t5LyYND9ek3Rj=bVdRh5HJTuPJRwQyS8Q@mail.gmail.com> (raw)
In-Reply-To: <CAML+3pXRmCisq-hWV_N2c-5yV-hWMHnrWrQr8B_y2oeFYkpp0g@mail.gmail.com>
Also, here is the Kanban board for our GSoC project, which might be
useful for you to manage non-reviewed patches.
https://github.com/users/ken-matsui/projects/1/views/1
On Wed, Jul 12, 2023 at 6:13 PM Ken Matsui <kmatsui@cs.washington.edu> wrote:
>
> Hi,
>
> Here is the updated benchmark result for is_pointer:
>
> https://github.com/ken-matsui/gcc-benches/blob/main/is_pointer.md#wed-jul-12-055654-pm-pdt-2023
>
> Time: -2.79488%
> Peak Memory Usage: -2.39379%
> Total Memory Usage: -3.39559%
>
> Sincerely,
> Ken Matsui
>
> On Wed, Jul 12, 2023 at 6:12 PM Ken Matsui <kmatsui@gcc.gnu.org> wrote:
> >
> > This patch implements built-in trait for std::is_pointer.
> >
> > gcc/cp/ChangeLog:
> >
> > * cp-trait.def: Define __is_pointer.
> > * constraint.cc (diagnose_trait_expr): Handle CPTK_IS_POINTER.
> > * semantics.cc (trait_expr_value): Likewise.
> > (finish_trait_expr): Likewise.
> >
> > gcc/testsuite/ChangeLog:
> >
> > * g++.dg/ext/has-builtin-1.C: Test existence of __is_pointer.
> > * g++.dg/ext/is_pointer.C: New test.
> > * g++.dg/tm/pr46567.C (__is_pointer): Rename to ...
> > (__is_ptr): ... this.
> > * g++.dg/torture/20070621-1.C: Likewise.
> > * g++.dg/torture/pr57107.C: Likewise.
> >
> > libstdc++-v3/ChangeLog:
> >
> > * include/bits/cpp_type_traits.h (__is_pointer): Rename to ...
> > (__is_ptr): ... this.
> > * include/bits/deque.tcc: Use __is_ptr instead.
> > * include/bits/stl_algobase.h: Likewise.
> >
> > Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
> > ---
> > gcc/cp/constraint.cc | 3 ++
> > gcc/cp/cp-trait.def | 1 +
> > gcc/cp/semantics.cc | 4 ++
> > gcc/testsuite/g++.dg/ext/has-builtin-1.C | 3 ++
> > gcc/testsuite/g++.dg/ext/is_pointer.C | 51 +++++++++++++++++++++
> > gcc/testsuite/g++.dg/tm/pr46567.C | 22 ++++-----
> > gcc/testsuite/g++.dg/torture/20070621-1.C | 4 +-
> > gcc/testsuite/g++.dg/torture/pr57107.C | 4 +-
> > libstdc++-v3/include/bits/cpp_type_traits.h | 6 +--
> > libstdc++-v3/include/bits/deque.tcc | 6 +--
> > libstdc++-v3/include/bits/stl_algobase.h | 6 +--
> > 11 files changed, 86 insertions(+), 24 deletions(-)
> > create mode 100644 gcc/testsuite/g++.dg/ext/is_pointer.C
> >
> > diff --git a/gcc/cp/constraint.cc b/gcc/cp/constraint.cc
> > index 8cf0f2d0974..30266204eb5 100644
> > --- a/gcc/cp/constraint.cc
> > +++ b/gcc/cp/constraint.cc
> > @@ -3751,6 +3751,9 @@ diagnose_trait_expr (tree expr, tree args)
> > case CPTK_IS_UNION:
> > inform (loc, " %qT is not a union", t1);
> > break;
> > + case CPTK_IS_POINTER:
> > + inform (loc, " %qT is not a pointer", t1);
> > + break;
> > case CPTK_IS_AGGREGATE:
> > inform (loc, " %qT is not an aggregate", t1);
> > break;
> > diff --git a/gcc/cp/cp-trait.def b/gcc/cp/cp-trait.def
> > index 8b7fece0cc8..b7c263e9a77 100644
> > --- a/gcc/cp/cp-trait.def
> > +++ b/gcc/cp/cp-trait.def
> > @@ -82,6 +82,7 @@ DEFTRAIT_EXPR (IS_TRIVIALLY_ASSIGNABLE, "__is_trivially_assignable", 2)
> > DEFTRAIT_EXPR (IS_TRIVIALLY_CONSTRUCTIBLE, "__is_trivially_constructible", -1)
> > DEFTRAIT_EXPR (IS_TRIVIALLY_COPYABLE, "__is_trivially_copyable", 1)
> > DEFTRAIT_EXPR (IS_UNION, "__is_union", 1)
> > +DEFTRAIT_EXPR (IS_POINTER, "__is_pointer", 1)
> > DEFTRAIT_EXPR (REF_CONSTRUCTS_FROM_TEMPORARY, "__reference_constructs_from_temporary", 2)
> > DEFTRAIT_EXPR (REF_CONVERTS_FROM_TEMPORARY, "__reference_converts_from_temporary", 2)
> > /* FIXME Added space to avoid direct usage in GCC 13. */
> > diff --git a/gcc/cp/semantics.cc b/gcc/cp/semantics.cc
> > index 8fb47fd179e..68f8a4fe85b 100644
> > --- a/gcc/cp/semantics.cc
> > +++ b/gcc/cp/semantics.cc
> > @@ -12118,6 +12118,9 @@ trait_expr_value (cp_trait_kind kind, tree type1, tree type2)
> > case CPTK_IS_UNION:
> > return type_code1 == UNION_TYPE;
> >
> > + case CPTK_IS_POINTER:
> > + return TYPE_PTR_P (type1);
> > +
> > case CPTK_IS_ASSIGNABLE:
> > return is_xible (MODIFY_EXPR, type1, type2);
> >
> > @@ -12296,6 +12299,7 @@ finish_trait_expr (location_t loc, cp_trait_kind kind, tree type1, tree type2)
> > case CPTK_IS_ENUM:
> > case CPTK_IS_UNION:
> > case CPTK_IS_SAME:
> > + case CPTK_IS_POINTER:
> > break;
> >
> > case CPTK_IS_LAYOUT_COMPATIBLE:
> > diff --git a/gcc/testsuite/g++.dg/ext/has-builtin-1.C b/gcc/testsuite/g++.dg/ext/has-builtin-1.C
> > index f343e153e56..9dace5cbd48 100644
> > --- a/gcc/testsuite/g++.dg/ext/has-builtin-1.C
> > +++ b/gcc/testsuite/g++.dg/ext/has-builtin-1.C
> > @@ -146,3 +146,6 @@
> > #if !__has_builtin (__remove_cvref)
> > # error "__has_builtin (__remove_cvref) failed"
> > #endif
> > +#if !__has_builtin (__is_pointer)
> > +# error "__has_builtin (__is_pointer) failed"
> > +#endif
> > diff --git a/gcc/testsuite/g++.dg/ext/is_pointer.C b/gcc/testsuite/g++.dg/ext/is_pointer.C
> > new file mode 100644
> > index 00000000000..d6e39565950
> > --- /dev/null
> > +++ b/gcc/testsuite/g++.dg/ext/is_pointer.C
> > @@ -0,0 +1,51 @@
> > +// { dg-do compile { target c++11 } }
> > +
> > +#define SA(X) static_assert((X),#X)
> > +
> > +SA(!__is_pointer(int));
> > +SA(__is_pointer(int*));
> > +SA(__is_pointer(int**));
> > +
> > +SA(__is_pointer(const int*));
> > +SA(__is_pointer(const int**));
> > +SA(__is_pointer(int* const));
> > +SA(__is_pointer(int** const));
> > +SA(__is_pointer(int* const* const));
> > +
> > +SA(__is_pointer(volatile int*));
> > +SA(__is_pointer(volatile int**));
> > +SA(__is_pointer(int* volatile));
> > +SA(__is_pointer(int** volatile));
> > +SA(__is_pointer(int* volatile* volatile));
> > +
> > +SA(__is_pointer(const volatile int*));
> > +SA(__is_pointer(const volatile int**));
> > +SA(__is_pointer(const int* volatile));
> > +SA(__is_pointer(volatile int* const));
> > +SA(__is_pointer(int* const volatile));
> > +SA(__is_pointer(const int** volatile));
> > +SA(__is_pointer(volatile int** const));
> > +SA(__is_pointer(int** const volatile));
> > +SA(__is_pointer(int* const* const volatile));
> > +SA(__is_pointer(int* volatile* const volatile));
> > +SA(__is_pointer(int* const volatile* const volatile));
> > +
> > +SA(!__is_pointer(int&));
> > +SA(!__is_pointer(const int&));
> > +SA(!__is_pointer(volatile int&));
> > +SA(!__is_pointer(const volatile int&));
> > +
> > +SA(!__is_pointer(int&&));
> > +SA(!__is_pointer(const int&&));
> > +SA(!__is_pointer(volatile int&&));
> > +SA(!__is_pointer(const volatile int&&));
> > +
> > +SA(!__is_pointer(int[3]));
> > +SA(!__is_pointer(const int[3]));
> > +SA(!__is_pointer(volatile int[3]));
> > +SA(!__is_pointer(const volatile int[3]));
> > +
> > +SA(!__is_pointer(int(int)));
> > +SA(__is_pointer(int(*const)(int)));
> > +SA(__is_pointer(int(*volatile)(int)));
> > +SA(__is_pointer(int(*const volatile)(int)));
> > diff --git a/gcc/testsuite/g++.dg/tm/pr46567.C b/gcc/testsuite/g++.dg/tm/pr46567.C
> > index 6d791484448..f08bbf6fd7b 100644
> > --- a/gcc/testsuite/g++.dg/tm/pr46567.C
> > +++ b/gcc/testsuite/g++.dg/tm/pr46567.C
> > @@ -192,13 +192,13 @@ namespace std __attribute__ ((__visibility__ ("default"))) {
> > typedef __true_type __type;
> > };
> > template<typename _Tp>
> > - struct __is_pointer
> > + struct __is_ptr
> > {
> > enum { __value = 0 };
> > typedef __false_type __type;
> > };
> > template<typename _Tp>
> > - struct __is_pointer<_Tp*>
> > + struct __is_ptr<_Tp*>
> > {
> > enum { __value = 1 };
> > typedef __true_type __type;
> > @@ -226,7 +226,7 @@ namespace std __attribute__ ((__visibility__ ("default"))) {
> > { };
> > template<typename _Tp>
> > struct __is_scalar
> > - : public __traitor<__is_arithmetic<_Tp>, __is_pointer<_Tp> >
> > + : public __traitor<__is_arithmetic<_Tp>, __is_ptr<_Tp> >
> > { };
> > template<typename _Tp>
> > struct __is_char
> > @@ -1202,8 +1202,8 @@ namespace std __attribute__ ((__visibility__ ("default"))) {
> > typedef typename iterator_traits<_OI>::value_type _ValueTypeO;
> > typedef typename iterator_traits<_II>::iterator_category _Category;
> > const bool __simple = (__is_pod(_ValueTypeI)
> > - && __is_pointer<_II>::__value
> > - && __is_pointer<_OI>::__value
> > + && __is_ptr<_II>::__value
> > + && __is_ptr<_OI>::__value
> > && __are_same<_ValueTypeI, _ValueTypeO>::__value);
> > return std::__copy_move<_IsMove, __simple,
> > _Category>::__copy_m(__first, __last, __result);
> > @@ -1294,8 +1294,8 @@ namespace std __attribute__ ((__visibility__ ("default"))) {
> > typedef typename iterator_traits<_BI2>::value_type _ValueType2;
> > typedef typename iterator_traits<_BI1>::iterator_category _Category;
> > const bool __simple = (__is_pod(_ValueType1)
> > - && __is_pointer<_BI1>::__value
> > - && __is_pointer<_BI2>::__value
> > + && __is_ptr<_BI1>::__value
> > + && __is_ptr<_BI2>::__value
> > && __are_same<_ValueType1, _ValueType2>::__value);
> > return std::__copy_move_backward<_IsMove, __simple,
> > _Category>::__copy_move_b(__first,
> > @@ -1426,8 +1426,8 @@ namespace std __attribute__ ((__visibility__ ("default"))) {
> > typedef typename iterator_traits<_II1>::value_type _ValueType1;
> > typedef typename iterator_traits<_II2>::value_type _ValueType2;
> > const bool __simple = (__is_integer<_ValueType1>::__value
> > - && __is_pointer<_II1>::__value
> > - && __is_pointer<_II2>::__value
> > + && __is_ptr<_II1>::__value
> > + && __is_ptr<_II2>::__value
> > && __are_same<_ValueType1, _ValueType2>::__value);
> > return std::__equal<__simple>::equal(__first1, __last1, __first2);
> > }
> > @@ -1515,8 +1515,8 @@ namespace std __attribute__ ((__visibility__ ("default"))) {
> > (__is_byte<_ValueType1>::__value && __is_byte<_ValueType2>::__value
> > && !__gnu_cxx::__numeric_traits<_ValueType1>::__is_signed
> > && !__gnu_cxx::__numeric_traits<_ValueType2>::__is_signed
> > - && __is_pointer<_II1>::__value
> > - && __is_pointer<_II2>::__value);
> > + && __is_ptr<_II1>::__value
> > + && __is_ptr<_II2>::__value);
> > return std::__lexicographical_compare<__simple>::__lc(__first1, __last1,
> > __first2, __last2);
> > }
> > diff --git a/gcc/testsuite/g++.dg/torture/20070621-1.C b/gcc/testsuite/g++.dg/torture/20070621-1.C
> > index d8a6a76b6b0..b05136163e8 100644
> > --- a/gcc/testsuite/g++.dg/torture/20070621-1.C
> > +++ b/gcc/testsuite/g++.dg/torture/20070621-1.C
> > @@ -18,7 +18,7 @@ namespace std __attribute__ ((__visibility__ ("default"))) {
> > enum {
> > __value = 0 };
> > };
> > - template<typename _Tp> struct __is_pointer {
> > + template<typename _Tp> struct __is_ptr {
> > enum {
> > __value = 0 };
> > };
> > @@ -49,7 +49,7 @@ namespace std __attribute__ ((__visibility__ ("default"))) {
> > template<typename _II1, typename _II2> inline bool __equal_aux(_II1 __first1, _II1 __last1, _II2 __first2) {
> > typedef typename iterator_traits<_II1>::value_type _ValueType1;
> > typedef typename iterator_traits<_II2>::value_type _ValueType2;
> > - const bool __simple = (__is_integer<_ValueType1>::__value && __is_pointer<_II1>::__value && __is_pointer<_II2>::__value && __are_same<_ValueType1, _ValueType2>::__value);
> > + const bool __simple = (__is_integer<_ValueType1>::__value && __is_ptr<_II1>::__value && __is_ptr<_II2>::__value && __are_same<_ValueType1, _ValueType2>::__value);
> > return std::__equal<__simple>::equal(__first1, __last1, __first2);
> > }
> > template<typename _II1, typename _II2> inline bool equal(_II1 __first1, _II1 __last1, _II2 __first2) {
> > diff --git a/gcc/testsuite/g++.dg/torture/pr57107.C b/gcc/testsuite/g++.dg/torture/pr57107.C
> > index 4dbd32bd298..be0689096fb 100644
> > --- a/gcc/testsuite/g++.dg/torture/pr57107.C
> > +++ b/gcc/testsuite/g++.dg/torture/pr57107.C
> > @@ -17,7 +17,7 @@ namespace std __attribute__ ((__visibility__ ("default"))) {
> > enum {
> > __value = 0 };
> > };
> > - template<typename _Tp> struct __is_pointer {
> > + template<typename _Tp> struct __is_ptr {
> > enum {
> > __value = 0 };
> > };
> > @@ -27,7 +27,7 @@ namespace std __attribute__ ((__visibility__ ("default"))) {
> > };
> > template<typename _Tp> struct __is_arithmetic : public __traitor<__is_integer<_Tp>, __is_floating<_Tp> > {
> > };
> > - template<typename _Tp> struct __is_scalar : public __traitor<__is_arithmetic<_Tp>, __is_pointer<_Tp> > {
> > + template<typename _Tp> struct __is_scalar : public __traitor<__is_arithmetic<_Tp>, __is_ptr<_Tp> > {
> > };
> > }
> > namespace __gnu_cxx __attribute__ ((__visibility__ ("default"))) {
> > diff --git a/libstdc++-v3/include/bits/cpp_type_traits.h b/libstdc++-v3/include/bits/cpp_type_traits.h
> > index 4312f32a4e0..3711e4be526 100644
> > --- a/libstdc++-v3/include/bits/cpp_type_traits.h
> > +++ b/libstdc++-v3/include/bits/cpp_type_traits.h
> > @@ -364,14 +364,14 @@ __INT_N(__GLIBCXX_TYPE_INT_N_3)
> > // Pointer types
> > //
> > template<typename _Tp>
> > - struct __is_pointer
> > + struct __is_ptr
> > {
> > enum { __value = 0 };
> > typedef __false_type __type;
> > };
> >
> > template<typename _Tp>
> > - struct __is_pointer<_Tp*>
> > + struct __is_ptr<_Tp*>
> > {
> > enum { __value = 1 };
> > typedef __true_type __type;
> > @@ -390,7 +390,7 @@ __INT_N(__GLIBCXX_TYPE_INT_N_3)
> > //
> > template<typename _Tp>
> > struct __is_scalar
> > - : public __traitor<__is_arithmetic<_Tp>, __is_pointer<_Tp> >
> > + : public __traitor<__is_arithmetic<_Tp>, __is_ptr<_Tp> >
> > { };
> >
> > //
> > diff --git a/libstdc++-v3/include/bits/deque.tcc b/libstdc++-v3/include/bits/deque.tcc
> > index a212b8a6940..08d888ee8af 100644
> > --- a/libstdc++-v3/include/bits/deque.tcc
> > +++ b/libstdc++-v3/include/bits/deque.tcc
> > @@ -1273,7 +1273,7 @@ _GLIBCXX_END_NAMESPACE_CONTAINER
> > {
> > const bool __simple =
> > (__is_memcmp_ordered_with<_Tp1, _Tp2>::__value
> > - && __is_pointer<_Ptr>::__value
> > + && __is_ptr<_Ptr>::__value
> > #if __cplusplus > 201703L && __cpp_lib_concepts
> > // For C++20 iterator_traits<volatile T*>::value_type is non-volatile
> > // so __is_byte<T> could be true, but we can't use memcmp with
> > @@ -1329,8 +1329,8 @@ _GLIBCXX_END_NAMESPACE_CONTAINER
> > {
> > const bool __simple =
> > (__is_memcmp_ordered_with<_Tp1, _Tp2>::__value
> > - && __is_pointer<_Ptr1>::__value
> > - && __is_pointer<_Ptr2>::__value
> > + && __is_ptr<_Ptr1>::__value
> > + && __is_ptr<_Ptr2>::__value
> > #if __cplusplus > 201703L && __cpp_lib_concepts
> > // For C++20 iterator_traits<volatile T*>::value_type is non-volatile
> > // so __is_byte<T> could be true, but we can't use memcmp with
> > diff --git a/libstdc++-v3/include/bits/stl_algobase.h b/libstdc++-v3/include/bits/stl_algobase.h
> > index dd95e94f7e9..cf21611fa5c 100644
> > --- a/libstdc++-v3/include/bits/stl_algobase.h
> > +++ b/libstdc++-v3/include/bits/stl_algobase.h
> > @@ -1214,7 +1214,7 @@ _GLIBCXX_END_NAMESPACE_CONTAINER
> > {
> > typedef typename iterator_traits<_II1>::value_type _ValueType1;
> > const bool __simple = ((__is_integer<_ValueType1>::__value
> > - || __is_pointer<_ValueType1>::__value)
> > + || __is_ptr<_ValueType1>::__value)
> > && __memcmpable<_II1, _II2>::__value);
> > return std::__equal<__simple>::equal(__first1, __last1, __first2);
> > }
> > @@ -1377,8 +1377,8 @@ _GLIBCXX_END_NAMESPACE_CONTAINER
> > typedef typename iterator_traits<_II2>::value_type _ValueType2;
> > const bool __simple =
> > (__is_memcmp_ordered_with<_ValueType1, _ValueType2>::__value
> > - && __is_pointer<_II1>::__value
> > - && __is_pointer<_II2>::__value
> > + && __is_ptr<_II1>::__value
> > + && __is_ptr<_II2>::__value
> > #if __cplusplus > 201703L && __cpp_lib_concepts
> > // For C++20 iterator_traits<volatile T*>::value_type is non-volatile
> > // so __is_byte<T> could be true, but we can't use memcmp with
> > --
> > 2.41.0
> >
next prev parent reply other threads:[~2023-07-13 1:16 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-10 5:23 [PATCH 1/2] c++, libstdc++: implement " Ken Matsui
2023-07-10 5:23 ` [PATCH 2/2] libstdc++: use new built-in trait __is_pointer Ken Matsui
2023-07-10 5:32 ` Daniel Krügler
2023-07-10 5:34 ` Ken Matsui
2023-07-10 5:38 ` [PATCH v2 1/2] c++, libstdc++: implement __is_pointer built-in trait Ken Matsui
2023-07-10 5:38 ` [PATCH v2 2/2] libstdc++: use new built-in trait __is_pointer Ken Matsui
2023-07-10 5:50 ` [PATCH v2 1/2] c++, libstdc++: implement __is_pointer built-in trait Ken Matsui
2023-07-12 10:01 ` Jonathan Wakely
2023-07-12 20:42 ` Ken Matsui
2023-07-13 1:11 ` [PATCH v3 1/2] c++, libstdc++: Implement " Ken Matsui
2023-07-13 1:11 ` [PATCH v3 2/2] libstdc++: Use new built-in trait __is_pointer Ken Matsui
2023-07-13 1:13 ` [PATCH v3 1/2] c++, libstdc++: Implement __is_pointer built-in trait Ken Matsui
2023-07-13 1:15 ` Ken Matsui [this message]
2023-07-13 3:16 ` [PATCH v4 " Ken Matsui
2023-07-13 3:16 ` [PATCH v4 2/2] libstdc++: Use new built-in trait __is_pointer Ken Matsui
2023-07-13 3:19 ` [PATCH v5 1/2] c++, libstdc++: Implement __is_pointer built-in trait Ken Matsui
2023-07-13 3:19 ` [PATCH v5 2/2] libstdc++: Use new built-in trait __is_pointer Ken Matsui
2023-07-13 20:48 ` [PATCH v6 1/2] c++, libstdc++: Implement __is_pointer built-in trait Ken Matsui
2023-07-13 20:48 ` [PATCH v6 2/2] libstdc++: Use new built-in trait __is_pointer Ken Matsui
2023-09-01 13:00 ` [PING][PATCH " Ken Matsui
2023-07-13 9:21 ` [PATCH v2 1/2] c++, libstdc++: implement __is_pointer built-in trait Jonathan Wakely
2023-07-13 20:04 ` Ken Matsui
2023-07-14 10:48 ` Jonathan Wakely
2023-07-14 10:49 ` Jonathan Wakely
2023-07-14 19:55 ` Ken Matsui
2023-07-12 4:40 ` [PATCH " François Dumont
2023-07-12 9:47 ` Jonathan Wakely
2023-07-12 9:48 ` Jonathan Wakely
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