From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from xry111.site (xry111.site [89.208.246.23]) by sourceware.org (Postfix) with ESMTPS id 209783858D1E for ; Mon, 15 Jan 2024 04:10:38 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 209783858D1E Authentication-Results: sourceware.org; dmarc=pass (p=reject dis=none) header.from=xry111.site Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=xry111.site ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 209783858D1E Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=89.208.246.23 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1705291840; cv=none; b=rAlinuxbBFane2Ap1cnQXLHLA6GWAsL7xWTfcEBVhU7E+IbiWa55vPC2WpzGDPlzoP3SCYb4CNR06gj7FQX9u3tf0VueP07FFIXFOyQfogXqY1Eb77gRx46hfYsSDGVYgAr7DPs8n6IVoPhsp2FQa4cqrPWN8e/X3evFGKBd2fQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1705291840; c=relaxed/simple; bh=6S94IpNKCgNNlDwPw+3x+SuXSQAWBOHW5gVSdxq9ft8=; h=DKIM-Signature:Message-ID:Subject:From:To:Date:MIME-Version; b=dHUTXR+2ueIWTXdxETK6PlHhMErWJ8nrVjd5GA4cWMOUoTRPCJap4eNHCk9cRt7B/8RXtPHQ27TShdmbA1dquNS3lpiiDy2mRgeuG5w89w1rHdaRrclgOk1I8hdL38Ii5AFBKkz9fbz4Z2KlU67jYBa32BAxYP/w13yHLLon+90= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=xry111.site; s=default; t=1705291836; bh=6S94IpNKCgNNlDwPw+3x+SuXSQAWBOHW5gVSdxq9ft8=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=C6g7kB6+/lJHO9vlQtwkFr4JvFrb/esNZ5xa14E35eFLWQiKZE77jdg81ylZn6G8t NLuTkJQou4Zsev9RRSW0BHrvEEIxo26bh58HYk2CmWY+yB+jBq6C3ekpy12ScsEuIv M7YMuRcgpBi2+IlCvu25Boqld+7DUKnC9f//bjPI= Received: from [127.0.0.1] (unknown [IPv6:2001:470:683e::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-384) server-digest SHA384) (Client did not present a certificate) (Authenticated sender: xry111@xry111.site) by xry111.site (Postfix) with ESMTPSA id 0D77F66976; Sun, 14 Jan 2024 23:10:34 -0500 (EST) Message-ID: Subject: Re: [PATCH v2] LoongArch: testsuite:Added additional vectorization "-mlsx" option. From: Xi Ruoyao To: chenxiaolong , gcc-patches@gcc.gnu.org Cc: i@xen0n.name, xuchenghua@loongson.cn, chenglulu@loongson.cn, schwab@linux-m68k.org, ci_notify@linaro.org Date: Mon, 15 Jan 2024 12:10:33 +0800 In-Reply-To: <8654a1de861c86eda083dced141bc928df3930f4.camel@loongson.cn> References: <20240113072817.31932-1-chenxiaolong@loongson.cn> <36fa3e47dfb106a150f113a300ecff6a7c869237.camel@xry111.site> <8654a1de861c86eda083dced141bc928df3930f4.camel@loongson.cn> Autocrypt: addr=xry111@xry111.site; prefer-encrypt=mutual; keydata=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 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.50.3 MIME-Version: 1.0 X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,LIKELY_SPAM_FROM,SPF_HELO_PASS,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On Mon, 2024-01-15 at 09:29 +0800, chenxiaolong wrote: > At 21:13 +0800 on Saturday, 2024-01-13, Xi Ruoyao wrote=EF=BC=9A > > At 15:28 +0800 on Saturday 2024-01-13, chenxiaolong wrote=EF=BC=9A > > > gcc/testsuite/ChangeLog: > > >=20 > > > * gcc.dg/pr104992.c: Added additional "-mlsx" compilation > > > options. > > > * gcc.dg/signbit-2.c: Dito. > > > * gcc.dg/tree-ssa/scev-16.c: Dito. > > > * gfortran.dg/graphite/vect-pr40979.f90: Dito. > > > * gfortran.dg/vect/fast-math-mgrid-resid.f: Dito. > >=20 > > I don't feel it right about the changes to pr104992.c and scev-16.c > > because no other architectures add special options there.=C2=A0 Why are= we > > so special? >=20 > Because on the LoongArch architecture, GCC requires the addition of > vectorization options in order to generate vector code. Use the > check_effective_target_vect_cmdline_needed command in the lib/target- > supports.exp file to set whether the command line option is needed to > enable vectorizations. For example, ia64,x86,aarch64, and riscv > architectures, vectorization is enabled by default. But no. The default baseline of 32-bit x86 is i686, which is basically a Pentium III launched in 1999 without any vector instructions. We are still missing something here. --=20 Xi Ruoyao School of Aerospace Science and Technology, Xidian University