From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 7857) id 507F1385B526; Thu, 23 Feb 2023 19:46:05 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 507F1385B526 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1677181565; bh=b+5izl5SspB2Afke269C4fuqtjQRwCKR8BjSU4EK9Xw=; h=From:To:Subject:Date:From; b=ssvLBDlQnpcGDIQckTsbkNA4o/H0Mq1b6N4Gqqj8iTecsx9idNJDt+Vf6/HU7yiBs S4o88TmtwSJoyecu0ofdcBV6g4DnJUGTHudWrCXWROp65F02E280+VC2ugBzj+i8eq WtEeeg2fRgchDn6BHJ7D45RdLSrIs2GWd5mZqNcs= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Matthias Kretz To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r11-10543] libstdc++: Simplify three helper functions into one X-Act-Checkin: gcc X-Git-Author: Matthias Kretz X-Git-Refname: refs/heads/releases/gcc-11 X-Git-Oldrev: 073ef7898411b7562cad0b375c57e0357a2ff1ee X-Git-Newrev: a1f70114f9bae5a1dbcec4b556c16716601fccf1 Message-Id: <20230223194605.507F1385B526@sourceware.org> Date: Thu, 23 Feb 2023 19:46:05 +0000 (GMT) List-Id: https://gcc.gnu.org/g:a1f70114f9bae5a1dbcec4b556c16716601fccf1 commit r11-10543-ga1f70114f9bae5a1dbcec4b556c16716601fccf1 Author: Matthias Kretz Date: Sat Jan 14 23:32:38 2023 +0100 libstdc++: Simplify three helper functions into one Broadcast is a very common function. This should reduce compile-time effort. Signed-off-by: Matthias Kretz 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. (cherry picked from commit 2e29e2fbeb8936e5c85cefaf547cba42e17e137b) Diff: --- libstdc++-v3/include/experimental/bits/simd.h | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/libstdc++-v3/include/experimental/bits/simd.h b/libstdc++-v3/include/experimental/bits/simd.h index cd811df7bfc..abbde6110a4 100644 --- a/libstdc++-v3/include/experimental/bits/simd.h +++ b/libstdc++-v3/include/experimental/bits/simd.h @@ -1665,14 +1665,15 @@ template // }}} // __vector_broadcast{{{ +template + _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 _GLIBCXX_SIMD_INTRINSIC constexpr __vector_type_t<_Tp, _Np> __vector_broadcast(_Tp __x) - { - return __call_with_n_evaluations<_Np>( - [](auto... __xx) { return __vector_type_t<_Tp, _Np>{__xx...}; }, - [&__x](int) { return __x; }); - } + { return __vector_broadcast_impl<_Np, _Tp>(__x, make_index_sequence<_Np>()); } // }}} // __generate_vector{{{