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[79.124.17.100]) by mx.google.com with ESMTP id e22-20020a50ec96000000b0051debfa935asi7485683edr.141.2023.07.13.13.24.06; Thu, 13 Jul 2023 13:24:07 -0700 (PDT) Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; Authentication-Results: mx.google.com; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id F383068C66A; Thu, 13 Jul 2023 23:24:03 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from ursule.remlab.net (vps-a2bccee9.vps.ovh.net [51.75.19.47]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 4003B68C568 for ; Thu, 13 Jul 2023 23:23:57 +0300 (EEST) Received: from basile.remlab.net (localhost [IPv6:::1]) by ursule.remlab.net (Postfix) with ESMTP id DBE60C01C3 for ; Thu, 13 Jul 2023 23:23:56 +0300 (EEST) From: =?utf-8?q?R=C3=A9mi_Denis-Courmont?= To: ffmpeg-devel@ffmpeg.org Date: Thu, 13 Jul 2023 23:23:56 +0300 Message-Id: <20230713202356.11127-1-remi@remlab.net> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH] lavc/alacdsp: unroll RISC-V V loops X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: o72zgu7gkTbN This increases the group multiplier as per T-Head C910 benchmarks: alac_append_extra_bits_mono_c: 803.0 alac_append_extra_bits_stereo_c: 1604.2 alac_decorrelate_stereo_c: 1077.5 LMUL=1 alac_append_extra_bits_mono_rvv_i32: 418.2 alac_append_extra_bits_stereo_rvv_i32: 693.2 alac_decorrelate_stereo_rvv_i32: 673.5 LMUL=2 alac_append_extra_bits_mono_rvv_i32: 382.2 alac_append_extra_bits_stereo_rvv_i32: 648.2 alac_decorrelate_stereo_rvv_i32: 542.7 LMUL=4 alac_append_extra_bits_mono_rvv_i32: 241.5 alac_append_extra_bits_stereo_rvv_i32: 512.7 alac_decorrelate_stereo_rvv_i32: 364.2 LMUL=8 alac_append_extra_bits_mono_rvv_i32: 239.7 alac_append_extra_bits_stereo_rvv_i32: 497.2 alac_decorrelate_stereo_rvv_i32: 426.7 --- libavcodec/riscv/alacdsp_rvv.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/libavcodec/riscv/alacdsp_rvv.S b/libavcodec/riscv/alacdsp_rvv.S index 8fbe3fbe77..8efb04e0c8 100644 --- a/libavcodec/riscv/alacdsp_rvv.S +++ b/libavcodec/riscv/alacdsp_rvv.S @@ -25,7 +25,7 @@ func ff_alac_decorrelate_stereo_rvv, zve32x ld a4, 8(a0) ld a0, 0(a0) 1: - vsetvli t0, a1, e32, m1, ta, ma + vsetvli t0, a1, e32, m4, ta, ma vle32.v v24, (a4) sub a1, a1, t0 vle32.v v16, (a0) @@ -47,7 +47,7 @@ func ff_alac_append_extra_bits_mono_rvv, zve32x ld a0, (a0) ld a1, (a1) 1: - vsetvli t0, a4, e32, m1, ta, ma + vsetvli t0, a4, e32, m8, ta, ma vle32.v v16, (a0) sub a4, a4, t0 vle32.v v24, (a1) @@ -67,7 +67,7 @@ func ff_alac_append_extra_bits_stereo_rvv, zve32x ld a7, 8(a1) ld a1, (a1) 1: - vsetvli t0, a4, e32, m1, ta, ma + vsetvli t0, a4, e32, m8, ta, ma vle32.v v16, (a0) sub a4, a4, t0 vle32.v v0, (a6)