From patchwork Mon Jan 22 13:46:08 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Machado X-Patchwork-Id: 125423 Delivered-To: patch@linaro.org Received: by 10.46.66.141 with SMTP id h13csp1164453ljf; Mon, 22 Jan 2018 05:46:47 -0800 (PST) X-Google-Smtp-Source: AH8x226vIApuby8B7nU0IqhomZK0PsMncKMf5BaVeu89uATvOv1Z/Ki2ErYWrTOtzvpSihlVjj94 X-Received: by 2002:a17:902:b605:: with SMTP id b5-v6mr3644903pls.208.1516628807386; Mon, 22 Jan 2018 05:46:47 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1516628807; cv=none; d=google.com; s=arc-20160816; b=b0Ra9cA+T5kyLigVrUUoblgxYGRUkkopYlcmjFkIhieaS4S2T0QRzqkjB/AdqLfUEn ApbSEHxbd4cYE3FvaVgOhQuoo6uj8WZUMJVOJMvaPLshDj4O9xX8YdbEQjHKdrjJo5wK a2Ob6AN0ifdhHa8XlkePAn/d3qlGlrtWnowx2zVtz10tzc5Gfx5pKxAiieuSRtDzhWHd Lb4BhaEdBcaFHkqr2Fczb0oF3Zmafl3JpGstCwV7EtSsxsuFXByCnQ3eisH2H/xl5eJL SQcvpNzHBucwW1DAArkwSZFXJ7pKC6HVuJt0GKJE8NagvVRY5ySmuwqk5MwWJ328bAw5 cA9Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=message-id:date:subject:cc:to:from:delivered-to:sender:list-help :list-post:list-archive:list-unsubscribe:list-id:precedence :mailing-list:dkim-signature:domainkey-signature :arc-authentication-results; bh=/adTDgWe27VyTCJ0NIoboYekWC8kmcNE67EbovS9Mz8=; b=Ms6UT+SEwdLHDpv+HyxeS9iGNrP1CXB5pCyJZUHQm677yNb60KgXdmNSlB6RsoCCRw HQFZlEsk4h8u2K/IWKYq4Ci0rUOV12js1rU+JRQtaHqQNTf6m4A7N/USQg+UUK4WXlXn kj2fALpV395QTfq6awMt3yPh+p6lks7mYKtZLWbZHq2lwwIyQkHkfryDiVu18PW7cXVE dTNV04+BY4+csF/9TQeOs3Nm4UU+/8FLSj6G8kp1NoNQVuCKB1/Db3Dih+5UuRacm+Qp h5po6DemR9cdcURhZ/WHGUdvIzBGcHEQuDYHyfShAEIm1vazg3GGArJATvcn0wgseNkE Md/A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=TgxgLeJP; spf=pass (google.com: domain of gcc-patches-return-471792-patch=linaro.org@gcc.gnu.org designates 209.132.180.131 as permitted sender) smtp.mailfrom=gcc-patches-return-471792-patch=linaro.org@gcc.gnu.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from sourceware.org (server1.sourceware.org. [209.132.180.131]) by mx.google.com with ESMTPS id q10-v6si3546059pli.698.2018.01.22.05.46.47 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 22 Jan 2018 05:46:47 -0800 (PST) Received-SPF: pass (google.com: domain of gcc-patches-return-471792-patch=linaro.org@gcc.gnu.org designates 209.132.180.131 as permitted sender) client-ip=209.132.180.131; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=TgxgLeJP; spf=pass (google.com: domain of gcc-patches-return-471792-patch=linaro.org@gcc.gnu.org designates 209.132.180.131 as permitted sender) smtp.mailfrom=gcc-patches-return-471792-patch=linaro.org@gcc.gnu.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org DomainKey-Signature: a=rsa-sha1; c=nofws; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender:from :to:cc:subject:date:message-id; q=dns; s=default; b=r3YPckVOAtJD oIMbHsAK+aSNflMTooiZm3a092KtSf2Fv2XOJCI0n/ZY4vHetl2z6jjFjAGyiRVb F+x7dSlpALtL6iPd/U9gvmvH0rMQ4ospbE+rgi9zE1updkcUAj7rinIzjzqgaiPS laUKTos5CyWjMTZYaqIDeNCN6lOR0RQ= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender:from :to:cc:subject:date:message-id; s=default; bh=BfIwQmJgctch2LuN6i CHVXtBkP8=; b=TgxgLeJPgfDcUwzFcyd+55IvNQndJu2qPn+HEHuf+ZmzKv3WiV QD8DOqJo893dAmxgoD4k+lfOd4QQ2n54mlD4gZnbm7Leq7T0RcI/7ojURNYpbJRW pGXTXXLcdSsSOcwn89jEQVokKeVVNwB4EK3sLXizn1LtisB8X5VvcWdYQ= Received: (qmail 863 invoked by alias); 22 Jan 2018 13:46:35 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Delivered-To: mailing list gcc-patches@gcc.gnu.org Received: (qmail 312 invoked by uid 89); 22 Jan 2018 13:46:35 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-6.9 required=5.0 tests=BAYES_00, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, SPF_PASS autolearn=ham version=3.3.2 spammy=luis, params.h, UD:params.def, paramsdef X-HELO: mail-qt0-f196.google.com Received: from mail-qt0-f196.google.com (HELO mail-qt0-f196.google.com) (209.85.216.196) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 22 Jan 2018 13:46:33 +0000 Received: by mail-qt0-f196.google.com with SMTP id d54so20791444qtd.4 for ; Mon, 22 Jan 2018 05:46:33 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=/adTDgWe27VyTCJ0NIoboYekWC8kmcNE67EbovS9Mz8=; b=PHMl9KgkQrUxWvU0Cug4V+9howVMZXHHRJ/hG+DKx/ouWdd2+uIVwyOsFKnMJ+tL0O KM+K/KLyGB+XWaTLFHODEGJBaervpqBPZvRJlxzJfhDQIgwOuP/o41rEG42SJR+0EKUG oHeUdR+jg8UA5Z1ArqU7vAd3OztBfS7xrxAK9bl3JUuAMMi/IawMj52UrRJW80UCcbCP ZE70lF4BCcoBogE0lI+n9pQaKzkN4o5inbubHHeUC8J4vrsUSN4hUrKbPq09R+uk0UPS fMVlLx5btrW0gdkWGpFdErIF8EDFu08T5V9C5uEPTjgM6sZhlXOEIqKToPKJHxk4J9Xp B3mw== X-Gm-Message-State: AKwxytdndmXy25OlNovWPE6rHYp5HxHNF7k7pfyKfQPt+J4yO5Nk6Z29 iKQ4gMWsRqLuE6teiEysoR8cXChwyOw= X-Received: by 10.200.43.13 with SMTP id 13mr11030616qtu.341.1516628791896; Mon, 22 Jan 2018 05:46:31 -0800 (PST) Received: from localhost.localdomain ([177.180.105.91]) by smtp.gmail.com with ESMTPSA id s39sm10492452qth.67.2018.01.22.05.46.29 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 22 Jan 2018 05:46:31 -0800 (PST) From: Luis Machado To: gcc-patches@gcc.gnu.org Cc: james.greenhalgh@arm.com, Richard.Earnshaw@arm.com Subject: [PATCH 0/2] Add a couple new options to control loop prefetch pass Date: Mon, 22 Jan 2018 11:46:08 -0200 Message-Id: <1516628770-25036-1-git-send-email-luis.machado@linaro.org> X-IsSubscribed: yes The following couple patches add options to better control the loop prefetch pass. With the current settings the pass tends to be very aggressive, issuing a lot of prefetch hints. Most of these don't translate to better performance. Some of these issued hints may even cause more cache evictions. Luis Machado (2): Introduce prefetch-minimum stride option Introduce prefetch-dynamic-strides option. gcc/config/aarch64/aarch64-protos.h | 6 ++++++ gcc/config/aarch64/aarch64.c | 24 +++++++++++++++++++++++- gcc/doc/invoke.texi | 25 +++++++++++++++++++++++++ gcc/params.def | 18 ++++++++++++++++++ gcc/params.h | 4 ++++ gcc/tree-ssa-loop-prefetch.c | 26 ++++++++++++++++++++++++++ 6 files changed, 102 insertions(+), 1 deletion(-) -- 2.7.4