From nobody Sun Nov 9 16:21:51 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1551290010055556.553664659672; Wed, 27 Feb 2019 09:53:30 -0800 (PST) Received: from localhost ([127.0.0.1]:48404 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gz3OY-0000Wp-Ve for importer@patchew.org; Wed, 27 Feb 2019 12:53:27 -0500 Received: from eggs.gnu.org ([209.51.188.92]:56849) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gz3Dh-0000SQ-Uh for qemu-devel@nongnu.org; Wed, 27 Feb 2019 12:42:15 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gz3De-0001Hh-8l for qemu-devel@nongnu.org; Wed, 27 Feb 2019 12:42:13 -0500 Received: from mx2.rt-rk.com ([89.216.37.149]:53606 helo=mail.rt-rk.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gz3DW-000054-Ap for qemu-devel@nongnu.org; Wed, 27 Feb 2019 12:42:08 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id A72F91A221C; Wed, 27 Feb 2019 18:40:24 +0100 (CET) Received: from rtrkw310-lin.domain.local (rtrkw310-lin.domain.local [10.10.13.57]) by mail.rt-rk.com (Postfix) with ESMTPSA id 86CCF1A221D; Wed, 27 Feb 2019 18:40:24 +0100 (CET) X-Virus-Scanned: amavisd-new at rt-rk.com From: Mateja Marjanovic To: qemu-devel@nongnu.org Date: Wed, 27 Feb 2019 18:40:17 +0100 Message-Id: <1551289217-10072-5-git-send-email-mateja.marjanovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1551289217-10072-1-git-send-email-mateja.marjanovic@rt-rk.com> References: <1551289217-10072-1-git-send-email-mateja.marjanovic@rt-rk.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 89.216.37.149 Subject: [Qemu-devel] [PATCH 4/4] target/mips: Optimize support for MSA instructions ILVR. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: arikalo@wavecomp.com, amarkovic@wavecomp.com, aurelien@aurel32.net Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Mateja Marjanovic Optimize support for MSA instructions ILVR.B, ILVR.H, ILVR.W, and ILVR.D. Optimization is done by eliminating loops, and explicitly assigning desired values to individual data elements. Performance measurement is done by executing the instructions large number of times on a computer with Intel Core i7-3770 CPU @ 3.40GHz=C3=978. Measured time before optimization: ILVR.B: 115.84 ms ILVR.H: 94.20 ms ILVR.W: 121.12 ms ILVR.D: 41.36 ms Measured time after optimization: ILVR.B: 61.06 ms ILVR.H: 43.03 ms ILVR.W: 39.21 ms ILVR.D: 39.18 ms Signed-off-by: Mateja Marjanovic --- target/mips/msa_helper.c | 59 +++++++++++++++++++++++++++++++++++++++++---= ---- 1 file changed, 51 insertions(+), 8 deletions(-) diff --git a/target/mips/msa_helper.c b/target/mips/msa_helper.c index 59aac72..ab797b1 100644 --- a/target/mips/msa_helper.c +++ b/target/mips/msa_helper.c @@ -1182,14 +1182,6 @@ MSA_FN_DF(pckev_df) MSA_FN_DF(pckod_df) #undef MSA_DO =20 -#define MSA_DO(DF) \ - do { \ - pwx->DF[2*i] =3D R##DF(pwt, i); \ - pwx->DF[2*i+1] =3D R##DF(pws, i); \ - } while (0) -MSA_FN_DF(ilvr_df) -#undef MSA_DO - #undef MSA_LOOP_COND =20 #define MSA_LOOP_COND(DF) \ @@ -1361,6 +1353,57 @@ void helper_msa_ilvl_df(CPUMIPSState *env, uint32_t = df, uint32_t wd, } } =20 +void helper_msa_ilvr_df(CPUMIPSState *env, uint32_t df, uint32_t wd, + uint32_t ws, uint32_t wt) +{ + wr_t *pwd =3D &(env->active_fpu.fpr[wd].wr); + wr_t *pws =3D &(env->active_fpu.fpr[ws].wr); + wr_t *pwt =3D &(env->active_fpu.fpr[wt].wr); + + switch (df) { + case DF_BYTE: + pwd->b[0] =3D pwt->b[0]; + pwd->b[1] =3D pws->b[0]; + pwd->b[2] =3D pwt->b[1]; + pwd->b[3] =3D pws->b[1]; + pwd->b[4] =3D pwt->b[2]; + pwd->b[5] =3D pws->b[2]; + pwd->b[6] =3D pwt->b[3]; + pwd->b[7] =3D pws->b[3]; + pwd->b[8] =3D pwt->b[4]; + pwd->b[9] =3D pws->b[4]; + pwd->b[10] =3D pwt->b[5]; + pwd->b[11] =3D pws->b[5]; + pwd->b[12] =3D pwt->b[6]; + pwd->b[13] =3D pws->b[6]; + pwd->b[14] =3D pwt->b[7]; + pwd->b[15] =3D pws->b[7]; + break; + case DF_HALF: + pwd->h[0] =3D pwt->h[0]; + pwd->h[1] =3D pws->h[0]; + pwd->h[2] =3D pwt->h[1]; + pwd->h[3] =3D pws->h[1]; + pwd->h[4] =3D pwt->h[2]; + pwd->h[5] =3D pws->h[2]; + pwd->h[6] =3D pwt->h[3]; + pwd->h[7] =3D pws->h[3]; + break; + case DF_WORD: + pwd->w[0] =3D pwt->w[0]; + pwd->w[1] =3D pws->w[0]; + pwd->w[2] =3D pwt->w[1]; + pwd->w[3] =3D pws->w[1]; + break; + case DF_DOUBLE: + pwd->d[0] =3D pwt->d[0]; + pwd->d[1] =3D pws->d[0]; + break; + default: + assert(0); + } +} + void helper_msa_sldi_df(CPUMIPSState *env, uint32_t df, uint32_t wd, uint32_t ws, uint32_t n) { --=20 2.7.4