From patchwork Tue Jun 8 12:11:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Matthias Kretz X-Patchwork-Id: 1489403 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=8.43.85.97; helo=sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4FzpzB0N3gz9sWD for ; Tue, 8 Jun 2021 22:12:54 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 6D7C23950C9C for ; Tue, 8 Jun 2021 12:12:51 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from lxmtout1.gsi.de (lxmtout1.gsi.de [140.181.3.111]) by sourceware.org (Postfix) with ESMTPS id 995BE3838011; Tue, 8 Jun 2021 12:11:27 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 995BE3838011 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=gsi.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gsi.de Received: from localhost (localhost [127.0.0.1]) by lxmtout1.gsi.de (Postfix) with ESMTP id A81262050D0A; Tue, 8 Jun 2021 14:11:26 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at lxmtout1.gsi.de Received: from lxmtout1.gsi.de ([127.0.0.1]) by localhost (lxmtout1.gsi.de [127.0.0.1]) (amavisd-new, port 10024) with LMTP id FPz3Eji6stxQ; Tue, 8 Jun 2021 14:11:26 +0200 (CEST) Received: from srvex3.campus.gsi.de (unknown [10.10.4.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by lxmtout1.gsi.de (Postfix) with ESMTPS id 8D3452050D00; Tue, 8 Jun 2021 14:11:26 +0200 (CEST) Received: from excalibur.localnet (140.181.3.12) by srvex3.campus.gsi.de (10.10.4.16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2242.10; Tue, 8 Jun 2021 14:11:26 +0200 From: Matthias Kretz To: , Subject: [PATCH 01/11] libstdc++: Improve copysign codegen Date: Tue, 8 Jun 2021 14:11:25 +0200 Message-ID: <1909428.ZsUzbmURod@excalibur> Organization: GSI Helmholtzzentrum =?utf-8?q?f=C3=BCr?= Schwerionenforschung In-Reply-To: <270527782.u9WJ3AIrlG@excalibur> References: <270527782.u9WJ3AIrlG@excalibur> MIME-Version: 1.0 X-Originating-IP: [140.181.3.12] X-ClientProxiedBy: srvex4.Campus.gsi.de (10.10.4.36) To srvex3.campus.gsi.de (10.10.4.16) X-Spam-Status: No, score=-10.3 required=5.0 tests=BAYES_00, BODY_8BITS, GIT_PATCH_0, KAM_DMARC_STATUS, SPF_HELO_PASS, SPF_PASS, TXREP, URIBL_SBL, URIBL_SBL_A autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" From: Matthias Kretz This also resolves a test failure on aarch64 with -ffast-math and fixed_size with large N. Signed-off-by: Matthias Kretz libstdc++-v3/ChangeLog: * include/experimental/bits/simd.h: Add missing operator~ overload for simd to __float_bitwise_operators. * include/experimental/bits/simd_builtin.h (_SimdImplBuiltin::_S_complement): Bitcast to int (and back) to implement complement for floating-point vectors. * include/experimental/bits/simd_fixed_size.h (_SimdImplFixedSize::_S_copysign): New function, forwarding to copysign implementation of _SimdTuple members. * include/experimental/bits/simd_math.h (copysign): Call _SimdImpl::_S_copysign for fixed_size arguments. Simplify generic copysign implementation using the new ~ operator. --- libstdc++-v3/include/experimental/bits/simd.h | 6 ++++++ libstdc++-v3/include/experimental/bits/simd_builtin.h | 7 ++++++- libstdc++-v3/include/experimental/bits/simd_fixed_size.h | 2 +- libstdc++-v3/include/experimental/bits/simd_math.h | 4 +++- 4 files changed, 16 insertions(+), 3 deletions(-) -- ────────────────────────────────────────────────────────────────────────── Dr. Matthias Kretz https://mattkretz.github.io GSI Helmholtz Centre for Heavy Ion Research https://gsi.de std::experimental::simd https://github.com/VcDevel/std-simd ────────────────────────────────────────────────────────────────────────── diff --git a/libstdc++-v3/include/experimental/bits/simd.h b/libstdc++-v3/include/experimental/bits/simd.h index 59ddf3cc958..163f1b574e2 100644 --- a/libstdc++-v3/include/experimental/bits/simd.h +++ b/libstdc++-v3/include/experimental/bits/simd.h @@ -5189,6 +5189,12 @@ template return {__private_init, _Ap::_SimdImpl::_S_bit_and(__data(__a), __data(__b))}; } + +template + _GLIBCXX_SIMD_INTRINSIC _GLIBCXX_SIMD_CONSTEXPR + enable_if_t, simd<_Tp, _Ap>> + operator~(const simd<_Tp, _Ap>& __a) + { return {__private_init, _Ap::_SimdImpl::_S_complement(__data(__a))}; } } // namespace __float_bitwise_operators }}} _GLIBCXX_SIMD_END_NAMESPACE diff --git a/libstdc++-v3/include/experimental/bits/simd_builtin.h b/libstdc++-v3/include/experimental/bits/simd_builtin.h index e986ee91620..8cd338e313f 100644 --- a/libstdc++-v3/include/experimental/bits/simd_builtin.h +++ b/libstdc++-v3/include/experimental/bits/simd_builtin.h @@ -1632,7 +1632,12 @@ template template _GLIBCXX_SIMD_INTRINSIC static constexpr _SimdWrapper<_Tp, _Np> _S_complement(_SimdWrapper<_Tp, _Np> __x) noexcept - { return ~__x._M_data; } + { + if constexpr (is_floating_point_v<_Tp>) + return __vector_bitcast<_Tp>(~__vector_bitcast<__int_for_sizeof_t<_Tp>>(__x)); + else + return ~__x._M_data; + } // _S_unary_minus {{{2 template diff --git a/libstdc++-v3/include/experimental/bits/simd_fixed_size.h b/libstdc++-v3/include/experimental/bits/simd_fixed_size.h index 2722055c899..7c2c1df77c8 100644 --- a/libstdc++-v3/include/experimental/bits/simd_fixed_size.h +++ b/libstdc++-v3/include/experimental/bits/simd_fixed_size.h @@ -1663,7 +1663,7 @@ template _GLIBCXX_SIMD_APPLY_ON_TUPLE(_Tp, ldexp) _GLIBCXX_SIMD_APPLY_ON_TUPLE(_Tp, fmod) _GLIBCXX_SIMD_APPLY_ON_TUPLE(_Tp, remainder) - // copysign in simd_math.h + _GLIBCXX_SIMD_APPLY_ON_TUPLE(_Tp, copysign) _GLIBCXX_SIMD_APPLY_ON_TUPLE(_Tp, nextafter) _GLIBCXX_SIMD_APPLY_ON_TUPLE(_Tp, fdim) _GLIBCXX_SIMD_APPLY_ON_TUPLE(_Tp, fmax) diff --git a/libstdc++-v3/include/experimental/bits/simd_math.h b/libstdc++-v3/include/experimental/bits/simd_math.h index 4799803a200..d954e761eee 100644 --- a/libstdc++-v3/include/experimental/bits/simd_math.h +++ b/libstdc++-v3/include/experimental/bits/simd_math.h @@ -1304,6 +1304,8 @@ template { if constexpr (simd_size_v<_Tp, _Abi> == 1) return std::copysign(__x[0], __y[0]); + else if constexpr (__is_fixed_size_abi_v<_Abi>) + return {__private_init, _Abi::_SimdImpl::_S_copysign(__data(__x), __data(__y))}; else if constexpr (is_same_v<_Tp, long double> && sizeof(_Tp) == 12) // Remove this case once __bit_cast is implemented via __builtin_bit_cast. // It is necessary, because __signmask below cannot be computed at compile @@ -1315,7 +1317,7 @@ template using _V = simd<_Tp, _Abi>; using namespace std::experimental::__float_bitwise_operators; _GLIBCXX_SIMD_USE_CONSTEXPR_API auto __signmask = _V(1) ^ _V(-1); - return (__x & (__x ^ __signmask)) | (__y & __signmask); + return (__x & ~__signmask) | (__y & __signmask); } } From patchwork Tue Jun 8 12:11:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Matthias Kretz X-Patchwork-Id: 1489405 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; 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spf=pass smtp.mailfrom=gsi.de Received: from localhost (localhost [127.0.0.1]) by lxmtout1.gsi.de (Postfix) with ESMTP id 8492A2050D02; Tue, 8 Jun 2021 14:11:32 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at lxmtout1.gsi.de Received: from lxmtout1.gsi.de ([127.0.0.1]) by localhost (lxmtout1.gsi.de [127.0.0.1]) (amavisd-new, port 10024) with LMTP id OEgkvv3JPLDE; Tue, 8 Jun 2021 14:11:32 +0200 (CEST) Received: from srvex3.campus.gsi.de (unknown [10.10.4.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by lxmtout1.gsi.de (Postfix) with ESMTPS id 6A05C2050D00; Tue, 8 Jun 2021 14:11:32 +0200 (CEST) Received: from excalibur.localnet (140.181.3.12) by srvex3.campus.gsi.de (10.10.4.16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2242.10; Tue, 8 Jun 2021 14:11:31 +0200 From: Matthias Kretz To: , Subject: [PATCH 02/11] libstdc++: Remove dead code Date: Tue, 8 Jun 2021 14:11:31 +0200 Message-ID: <3674373.7O1Wp1SQZX@excalibur> Organization: GSI Helmholtzzentrum =?utf-8?q?f=C3=BCr?= Schwerionenforschung In-Reply-To: <270527782.u9WJ3AIrlG@excalibur> References: <270527782.u9WJ3AIrlG@excalibur> MIME-Version: 1.0 X-Originating-IP: [140.181.3.12] X-ClientProxiedBy: srvex1.Campus.gsi.de (10.10.4.11) To srvex3.campus.gsi.de (10.10.4.16) X-Spam-Status: No, score=-10.3 required=5.0 tests=BAYES_00, BODY_8BITS, GIT_PATCH_0, KAM_DMARC_STATUS, SPF_HELO_PASS, SPF_PASS, TXREP, URIBL_SBL, URIBL_SBL_A autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" From: Matthias Kretz This helper type became unused at some point. Signed-off-by: Matthias Kretz libstdc++-v3/ChangeLog: * include/experimental/bits/simd_fixed_size.h (_AbisInSimdTuple): Removed. --- .../experimental/bits/simd_fixed_size.h | 49 ------------------- 1 file changed, 49 deletions(-) -- ────────────────────────────────────────────────────────────────────────── Dr. Matthias Kretz https://mattkretz.github.io GSI Helmholtz Centre for Heavy Ion Research https://gsi.de std::experimental::simd https://github.com/VcDevel/std-simd ────────────────────────────────────────────────────────────────────────── diff --git a/libstdc++-v3/include/experimental/bits/simd_fixed_size.h b/libstdc++-v3/include/experimental/bits/simd_fixed_size.h index 7c2c1df77c8..b6fb47cdf39 100644 --- a/libstdc++-v3/include/experimental/bits/simd_fixed_size.h +++ b/libstdc++-v3/include/experimental/bits/simd_fixed_size.h @@ -1025,55 +1025,6 @@ template _Tp, _Remain, _SimdTuple<_Tp, _As..., typename _Next::abi_type>>::type; }; -// }}} -// _AbisInSimdTuple {{{ -template - struct _SeqOp; - -template - struct _SeqOp> - { - using _FirstPlusOne = index_sequence<_I0 + 1, _Is...>; - using _NotFirstPlusOne = index_sequence<_I0, (_Is + 1)...>; - template - using _Prepend = index_sequence<_First, _I0 + _Add, (_Is + _Add)...>; - }; - -template - struct _AbisInSimdTuple; - -template - struct _AbisInSimdTuple<_SimdTuple<_Tp>> - { - using _Counts = index_sequence<0>; - using _Begins = index_sequence<0>; - }; - -template - struct _AbisInSimdTuple<_SimdTuple<_Tp, _Ap>> - { - using _Counts = index_sequence<1>; - using _Begins = index_sequence<0>; - }; - -template - struct _AbisInSimdTuple<_SimdTuple<_Tp, _A0, _A0, _As...>> - { - using _Counts = typename _SeqOp>::_Counts>::_FirstPlusOne; - using _Begins = typename _SeqOp>::_Begins>::_NotFirstPlusOne; - }; - -template - struct _AbisInSimdTuple<_SimdTuple<_Tp, _A0, _A1, _As...>> - { - using _Counts = typename _SeqOp>::_Counts>::template _Prepend<1, 0>; - using _Begins = typename _SeqOp>::_Begins>::template _Prepend<0, 1>; - }; - // }}} // __autocvt_to_simd {{{ template >> From patchwork Tue Jun 8 12:11:35 2021 Content-Type: text/plain; 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Tue, 8 Jun 2021 14:11:35 +0200 From: Matthias Kretz To: , Subject: [PATCH 03/11] libstdc++: Improve fixed_size codegen Date: Tue, 8 Jun 2021 14:11:35 +0200 Message-ID: <2942575.PJNiXcIEje@excalibur> Organization: GSI Helmholtzzentrum =?utf-8?q?f=C3=BCr?= Schwerionenforschung In-Reply-To: <270527782.u9WJ3AIrlG@excalibur> References: <270527782.u9WJ3AIrlG@excalibur> MIME-Version: 1.0 X-Originating-IP: [140.181.3.12] X-ClientProxiedBy: srvex3.Campus.gsi.de (10.10.4.16) To srvex3.campus.gsi.de (10.10.4.16) X-Spam-Status: No, score=-10.3 required=5.0 tests=BAYES_00, BODY_8BITS, GIT_PATCH_0, KAM_DMARC_STATUS, SPF_HELO_PASS, SPF_PASS, TXREP, URIBL_SBL, URIBL_SBL_A autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" From: Matthias Kretz Sometimes fixed_size objects will get unnecessarily copied on the stack. The simd implementation should never pass _SimdTuple by value to avoid requiring the optimizer to see through these copies. Signed-off-by: Matthias Kretz libstdc++-v3/ChangeLog: * include/experimental/bits/simd_converter.h (_SimdConverter::operator()): Pass _SimdTuple by const-ref. * include/experimental/bits/simd_fixed_size.h (_GLIBCXX_SIMD_FIXED_OP): Pass binary operator _SimdTuple arguments by const-ref. (_S_masked_unary): Pass _SimdTuple by const-ref. --- libstdc++-v3/include/experimental/bits/simd_converter.h | 2 +- libstdc++-v3/include/experimental/bits/simd_fixed_size.h | 5 ++--- 2 files changed, 3 insertions(+), 4 deletions(-) -- ────────────────────────────────────────────────────────────────────────── Dr. Matthias Kretz https://mattkretz.github.io GSI Helmholtz Centre for Heavy Ion Research https://gsi.de std::experimental::simd https://github.com/VcDevel/std-simd ────────────────────────────────────────────────────────────────────────── diff --git a/libstdc++-v3/include/experimental/bits/simd_converter.h b/libstdc++-v3/include/experimental/bits/simd_converter.h index 9c8bf382df9..11999df25e4 100644 --- a/libstdc++-v3/include/experimental/bits/simd_converter.h +++ b/libstdc++-v3/include/experimental/bits/simd_converter.h @@ -316,7 +316,7 @@ template _GLIBCXX_SIMD_INTRINSIC constexpr typename _SimdTraits<_To, _Ap>::_SimdMember - operator()(_Arg __x) const noexcept + operator()(const _Arg& __x) const noexcept { if constexpr (_Arg::_S_tuple_size == 1) return __vector_convert<__vector_type_t<_To, _Np>>(__x.first); diff --git a/libstdc++-v3/include/experimental/bits/simd_fixed_size.h b/libstdc++-v3/include/experimental/bits/simd_fixed_size.h index b6fb47cdf39..dc2fb90b9b2 100644 --- a/libstdc++-v3/include/experimental/bits/simd_fixed_size.h +++ b/libstdc++-v3/include/experimental/bits/simd_fixed_size.h @@ -1480,7 +1480,7 @@ template #define _GLIBCXX_SIMD_FIXED_OP(name_, op_) \ template \ static inline constexpr _SimdTuple<_Tp, _As...> name_( \ - const _SimdTuple<_Tp, _As...> __x, const _SimdTuple<_Tp, _As...> __y) \ + const _SimdTuple<_Tp, _As...>& __x, const _SimdTuple<_Tp, _As...>& __y)\ { \ return __x._M_apply_per_chunk( \ [](auto __impl, auto __xx, auto __yy) constexpr { \ @@ -1780,8 +1780,7 @@ template // _S_masked_unary {{{2 template