[PATCH] libstdc++: Rebase include/pstl to current upstream

[Jonathan Wakely]

On 21/09/20 15:40 +0100, Jonathan Wakely wrote:
>On 15/09/20 20:35 -0700, Thomas Rodgers wrote:
>>From: Thomas Rodgers <trodgers@redhat.com>
>>
>>From llvm-project/pstl @ 0b2e0e80d96
>>
>>libstdc++-v3/ChangeLog:
>>
>>	* include/pstl/algorithm_impl.h: Update file.
>>	* include/pstl/execution_impl.h: Likewise.
>>	* include/pstl/glue_algorithm_impl.h: Likewise.
>>	* include/pstl/glue_memory_impl.h: Likewise.
>>	* include/pstl/glue_numeric_impl.h: Likewise.
>>	* include/pstl/memory_impl.h: Likewise.
>>	* include/pstl/numeric_impl.h: Likewise.
>>	* include/pstl/parallel_backend.h: Likewise.
>>	* include/pstl/parallel_backend_serial.h: Likewise.
>>	* include/pstl/parallel_backend_tbb.h: Likewise.
>>	* include/pstl/parallel_backend_utils.h: Likewise.
>>	* include/pstl/pstl_config.h: Likewise.
>>	* include/pstl/unseq_backend_simd.h: Likewise.
>>---
>>libstdc++-v3/include/pstl/algorithm_impl.h    | 181 ++--
>>libstdc++-v3/include/pstl/execution_impl.h    |   4 +-
>>.../include/pstl/glue_algorithm_impl.h        | 543 +++++------
>>libstdc++-v3/include/pstl/glue_memory_impl.h  | 264 ++---
>>libstdc++-v3/include/pstl/glue_numeric_impl.h |  68 +-
>>libstdc++-v3/include/pstl/memory_impl.h       |  67 +-
>>libstdc++-v3/include/pstl/numeric_impl.h      |   8 +-
>>libstdc++-v3/include/pstl/parallel_backend.h  |   8 +
>>.../include/pstl/parallel_backend_serial.h    |   8 +-
>>.../include/pstl/parallel_backend_tbb.h       | 903 +++++++++++++++---
>>.../include/pstl/parallel_backend_utils.h     | 248 +++--
>>libstdc++-v3/include/pstl/pstl_config.h       |  24 +-
>>.../include/pstl/unseq_backend_simd.h         |  39 +-
>>13 files changed, 1586 insertions(+), 779 deletions(-)
>>
>>diff --git a/libstdc++-v3/include/pstl/glue_algorithm_impl.h b/libstdc++-v3/include/pstl/glue_algorithm_impl.h
>>index 379de4033ec..d2e30529f78 100644
>>--- a/libstdc++-v3/include/pstl/glue_algorithm_impl.h
>>+++ b/libstdc++-v3/include/pstl/glue_algorithm_impl.h
>>@@ -757,8 +743,7 @@ __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, bool>
>>equal(_ExecutionPolicy&& __exec, _ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2,
>>      _ForwardIterator2 __last2)
>>{
>>-    return std::equal(std::forward<_ExecutionPolicy>(__exec), __first1, __last1, __first2, __last2,
>>-                      __pstl::__internal::__pstl_equal());
>>+    return equal(std::forward<_ExecutionPolicy>(__exec), __first1, __last1, __first2, __last2, std::equal_to<>());
>
>Any idea why this is now called unqualified? I don't think we want ADL
>here.
>
>
>>diff --git a/libstdc++-v3/include/pstl/parallel_backend_tbb.h b/libstdc++-v3/include/pstl/parallel_backend_tbb.h
>>index 9c05ade0532..4476486d548 100644
>>--- a/libstdc++-v3/include/pstl/parallel_backend_tbb.h
>>+++ b/libstdc++-v3/include/pstl/parallel_backend_tbb.h
>
>This file is full of non-reserved names, like _root and _x_orig and
>move_y_range.
>
>Fixing those upstream might take a while though.

Please go ahead and commit this as is. The problems can be addressed
upstream and fixed here later.