{"id":816181,"url":"http://patchwork.ozlabs.org/api/patches/816181/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/87377h1rne.fsf@linaro.org/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/projects/17/?format=json","name":"GNU Compiler Collection","link_name":"gcc","list_id":"gcc-patches.gcc.gnu.org","list_email":"gcc-patches@gcc.gnu.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<87377h1rne.fsf@linaro.org>","list_archive_url":null,"date":"2017-09-20T12:27:49","name":"Add copy_rtx call to RTL loop unroller","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"49f54749f62f6763d8dd835b46812e6fbe798fbe","submitter":{"id":5450,"url":"http://patchwork.ozlabs.org/api/people/5450/?format=json","name":"Richard Sandiford","email":"richard.sandiford@linaro.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/87377h1rne.fsf@linaro.org/mbox/","series":[{"id":4103,"url":"http://patchwork.ozlabs.org/api/series/4103/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=4103","date":"2017-09-20T12:27:49","name":"Add copy_rtx call to RTL loop unroller","version":1,"mbox":"http://patchwork.ozlabs.org/series/4103/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/816181/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/816181/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list gcc-patches@gcc.gnu.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=gcc-patches-return-462584-incoming=patchwork.ozlabs.org@gcc.gnu.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org\n\theader.b=\"YASUO1HM\"; dkim-atps=neutral","sourceware.org; auth=none"],"Received":["from sourceware.org (server1.sourceware.org [209.132.180.131])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xxzY30RvRz9t2Q\n\tfor ;\n\tWed, 20 Sep 2017 22:28:06 +1000 (AEST)","(qmail 64539 invoked by alias); 20 Sep 2017 12:27:57 -0000","(qmail 64309 invoked by uid 89); 20 Sep 2017 12:27:56 -0000","from mail-wm0-f47.google.com (HELO mail-wm0-f47.google.com)\n\t(74.125.82.47) by sourceware.org\n\t(qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP;\n\tWed, 20 Sep 2017 12:27:54 +0000","by mail-wm0-f47.google.com with SMTP id g206so6739617wme.0 for\n\t; Wed, 20 Sep 2017 05:27:54 -0700 (PDT)","from localhost (92.40.248.127.threembb.co.uk. [92.40.248.127]) by\n\tsmtp.gmail.com with ESMTPSA id\n\tl15sm1739298wrl.47.2017.09.20.05.27.51 for\n\t (version=TLS1_2\n\tcipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256);\n\tWed, 20 Sep 2017 05:27:51 -0700 (PDT)"],"DomainKey-Signature":"a=rsa-sha1; c=nofws; d=gcc.gnu.org; h=list-id\n\t:list-unsubscribe:list-archive:list-post:list-help:sender:from\n\t:to:subject:date:message-id:mime-version:content-type; q=dns; s=\n\tdefault; b=QGpFJpqzdtRdchMueqPKAWdBooZcb1/9oybDjZTRTZzCbXjOGm4EQ\n\tzpWnqmCsbLGvj6egnpj0toH1gXWMn3oIpirhlR5dpjWSkIk+4oT3nJ2OGUC7kI9I\n\tm13wfvC1OURJBVvvcfEw9kqz2GVzB8PnDgMAuw8reh2YUexG9F1XdM=","DKIM-Signature":"v=1; a=rsa-sha1; c=relaxed; d=gcc.gnu.org; h=list-id\n\t:list-unsubscribe:list-archive:list-post:list-help:sender:from\n\t:to:subject:date:message-id:mime-version:content-type; s=\n\tdefault; bh=lj8YD6j89Nu5aUOCE47tIh03uCI=; b=YASUO1HMRCVmRLaUSUMT\n\tNxH1I6b0Hprx9LNeNq4pdvfZs4wb5GOWrf35oOcTmOV6ptuFrYTrQBXTXmkXuxan\n\tfyzCatagAOJmuQgTpkLN+95bWp4KlFwFJ3tjOvexNWtGNMe2yJ4PKRzCVj80HJw7\n\tHHxcn4VZLRN0zvN0/WaGIkc=","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","X-Virus-Found":"No","X-Spam-SWARE-Status":"No, score=-11.3 required=5.0 tests=AWL, BAYES_00,\n\tGIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE,\n\tRCVD_IN_SORBS_SPAM,\n\tSPF_PASS autolearn=ham version=3.3.2 spammy=","X-HELO":"mail-wm0-f47.google.com","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net;\n\ts=20161025;\n\th=x-gm-message-state:from:to:mail-followup-to:subject:date:message-id\n\t:user-agent:mime-version;\n\tbh=zv/C8DeWVk+OPvSc+mshKtVR8zP7oVW8/6sVp7u2OyA=;\n\tb=iaWB6XiMxnCrVLU7JsPeFH2YU4qH7n1ZndMtESQ7KGD7NdyBPTo2RzmtuxyaiMqIqn\n\tS5gf5A/KC6m+35yY1pyy6WbL+YwGdxFuBIIvVr+KTbAal1+sGcD9WrI5xER5lRTobr4U\n\t4abe8VVzBBG/E546Oa48QRSVS/noXzjHgmhZC1hZRt3WpGdDAtV7bRyim9CHeW8CbA/K\n\twV7iZYYgTjC0w+K1UHrZ2lxGLUHs6Yhad58k46o91aq298PBknXEc/ZdBENjCBVy9BrF\n\tllXo/A1ydEEFmSrWbpEvzdlFmwHHyyBJfrvrGaBEzlU8CIvI4Y06nmGzPDjFtWfYVJUv\n\tJShg==","X-Gm-Message-State":"AHPjjUiJdyXxUlFU74n7wT/Y3VqFslLGqv0Ocnin5Gx/R8yUj3r/3f6/\tUm72keBkdQ/GUSV5wLMNjUK4mWKAxb0=","X-Google-Smtp-Source":"AOwi7QBRU/fJYlj5Dr2j33mTj0hlZkKgi3cmw+uZ6QC8crtMQ7sz7P/RFTBQGgfaoUyFJ3WbFE48aQ==","X-Received":"by 10.28.45.5 with SMTP id t5mr3699949wmt.108.1505910472267;\n\tWed, 20 Sep 2017 05:27:52 -0700 (PDT)","From":"Richard Sandiford ","To":"gcc-patches@gcc.gnu.org","Mail-Followup-To":"gcc-patches@gcc.gnu.org, richard.sandiford@linaro.org","Subject":"Add copy_rtx call to RTL loop unroller","Date":"Wed, 20 Sep 2017 13:27:49 +0100","Message-ID":"<87377h1rne.fsf@linaro.org>","User-Agent":"Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)","MIME-Version":"1.0","Content-Type":"text/plain"},"content":"This is needed if the step is an unshared constant, like many\n(const ...)s are. Without this patch, libgfortran would fail\nto build for SVE.\n\nTested on aarch64-linux-gnu, x86_64-linux-gnu and powerpc64le-linus-gnu.\nOK to install?\n\nRichard\n\n\n2017-09-20 Richard Sandiford \n\t Alan Hayward \n\t David Sherwood \n\ngcc/\n\t* loop-unroll.c (split_iv): Call copy_rtx on the step.","diff":"Index: gcc/loop-unroll.c\n===================================================================\n--- gcc/loop-unroll.c\t2017-08-30 12:13:52.715828832 +0100\n+++ gcc/loop-unroll.c\t2017-09-20 13:26:14.451718893 +0100\n@@ -1731,7 +1731,8 @@ split_iv (struct iv_to_split *ivts, rtx_\n else\n {\n incr = simplify_gen_binary (MULT, mode,\n-\t\t\t\t ivts->step, gen_int_mode (delta, mode));\n+\t\t\t\t copy_rtx (ivts->step),\n+\t\t\t\t gen_int_mode (delta, mode));\n expr = simplify_gen_binary (PLUS, GET_MODE (ivts->base_var),\n \t\t\t\t ivts->base_var, incr);\n }\n","prefixes":[]}