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| author | Matthias Kretz <m.kretz@gsi.de> | 2023-01-14 23:32:38 +0100 |
|---|---|---|
| committer | Matthias Kretz <m.kretz@gsi.de> | 2023-02-23 15:01:49 +0100 |
| commit | 2e29e2fbeb8936e5c85cefaf547cba42e17e137b (patch) | |
| tree | 2806731224cdf955963323b7de8364ef726b9f91 | |
| parent | af46073dbe83d88e2d93d967da447346b22c70bb (diff) | |
| download | gcc-2e29e2fbeb8936e5c85cefaf547cba42e17e137b.zip gcc-2e29e2fbeb8936e5c85cefaf547cba42e17e137b.tar.gz gcc-2e29e2fbeb8936e5c85cefaf547cba42e17e137b.tar.bz2 | |
libstdc++: Simplify three helper functions into one
Broadcast is a very common function. This should reduce compile-time
effort.
Signed-off-by: Matthias Kretz <m.kretz@gsi.de>
libstdc++-v3/ChangeLog:
PR libstdc++/108030
* include/experimental/bits/simd.h (__vector_broadcast):
Implement via __vector_broadcast_impl instead of
__call_with_n_evaluations + 2 lambdas.
(__vector_broadcast_impl): New.
| -rw-r--r-- | libstdc++-v3/include/experimental/bits/simd.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/libstdc++-v3/include/experimental/bits/simd.h b/libstdc++-v3/include/experimental/bits/simd.h index 2f615d1..7482d10 100644 --- a/libstdc++-v3/include/experimental/bits/simd.h +++ b/libstdc++-v3/include/experimental/bits/simd.h @@ -1798,15 +1798,15 @@ template <typename _Tp, typename... _Args> // }}} // __vector_broadcast{{{ +template <size_t _Np, typename _Tp, size_t... _I> + _GLIBCXX_SIMD_INTRINSIC constexpr __vector_type_t<_Tp, _Np> + __vector_broadcast_impl(_Tp __x, index_sequence<_I...>) + { return __vector_type_t<_Tp, _Np>{((void)_I, __x)...}; } + template <size_t _Np, typename _Tp> _GLIBCXX_SIMD_INTRINSIC constexpr __vector_type_t<_Tp, _Np> __vector_broadcast(_Tp __x) - { - return __call_with_n_evaluations<_Np>( - [](auto... __xx) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA { - return __vector_type_t<_Tp, _Np>{__xx...}; - }, [&__x](int) _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA { return __x; }); - } + { return __vector_broadcast_impl<_Np, _Tp>(__x, make_index_sequence<_Np>()); } // }}} // __generate_vector{{{ |