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GET /api/patches/808670/?format=api
{ "id": 808670, "url": "http://patchwork.ozlabs.org/api/patches/808670/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/1504269130-29760-1-git-send-email-claziss@synopsys.com/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/projects/17/?format=api", "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": "<1504269130-29760-1-git-send-email-claziss@synopsys.com>", "list_archive_url": null, "date": "2017-09-01T12:32:10", "name": "[ARC,ZOL] Account for empty body loops", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "7ea58f0b036c3958921406f6c1a7614023c59a51", "submitter": { "id": 67086, "url": "http://patchwork.ozlabs.org/api/people/67086/?format=api", "name": "Claudiu Zissulescu", "email": "Claudiu.Zissulescu@synopsys.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/1504269130-29760-1-git-send-email-claziss@synopsys.com/mbox/", "series": [ { "id": 1015, "url": "http://patchwork.ozlabs.org/api/series/1015/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=1015", "date": "2017-09-01T12:32:10", "name": "[ARC,ZOL] Account for empty body loops", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/1015/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/808670/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/808670/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-return-461279-incoming=patchwork.ozlabs.org@gcc.gnu.org>", "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-461279-incoming=patchwork.ozlabs.org@gcc.gnu.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org\n\theader.b=\"oRyvktPS\"; 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 3xkJdG6wkCz9s7c\n\tfor <incoming@patchwork.ozlabs.org>;\n\tFri, 1 Sep 2017 22:36:18 +1000 (AEST)", "(qmail 10426 invoked by alias); 1 Sep 2017 12:36:12 -0000", "(qmail 10417 invoked by uid 89); 1 Sep 2017 12:36:11 -0000", "from us01smtprelay-2.synopsys.com (HELO smtprelay.synopsys.com)\n\t(198.182.47.9) by sourceware.org\n\t(qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP;\n\tFri, 01 Sep 2017 12:36:10 +0000", "from mailhost.synopsys.com (mailhost2.synopsys.com\n\t[10.13.184.66])\tby smtprelay.synopsys.com (Postfix) with\n\tESMTP id F07CD24E171D; Fri, 1 Sep 2017 05:36:08 -0700 (PDT)", "from mailhost.synopsys.com (localhost [127.0.0.1])\tby\n\tmailhost.synopsys.com (Postfix) with ESMTP id D9E6964E;\n\tFri, 1 Sep 2017 05:36:08 -0700 (PDT)", "from us01wehtc1.internal.synopsys.com\n\t(us01wehtc1.internal.synopsys.com [10.12.239.235])\tby\n\tmailhost.synopsys.com (Postfix) with ESMTP id A5652609;\n\tFri, 1 Sep 2017 05:36:04 -0700 (PDT)", "from IN01WEHTCB.internal.synopsys.com (10.144.199.106) by\n\tus01wehtc1.internal.synopsys.com (10.12.239.231) with\n\tMicrosoft SMTP Server (TLS) id 14.3.266.1;\n\tFri, 1 Sep 2017 05:35:44 -0700", "from IN01WEHTCA.internal.synopsys.com (10.144.199.104) by\n\tIN01WEHTCB.internal.synopsys.com (10.144.199.105) with\n\tMicrosoft SMTP Server (TLS) id 14.3.266.1;\n\tFri, 1 Sep 2017 18:05:41 +0530", "from nl20droid1.internal.synopsys.com (10.100.24.228) by\n\tIN01WEHTCA.internal.synopsys.com (10.144.199.243) with\n\tMicrosoft SMTP Server (TLS) id 14.3.266.1;\n\tFri, 1 Sep 2017 18:05:40 +0530" ], "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:cc:subject:date:message-id:in-reply-to:references\n\t:mime-version:content-type; q=dns; s=default; b=ITabox+CWObgSZb7\n\tVqzqBuZ1fvHHWsJ1iPS38Xvs/YGLNqCeu86EGhZDtj/m276g8NCHHpqIuC80LLZH\n\tGrtUUxxyIxdfNvuCcw5m+GucWd7t5WfcIkk7i7CADCJpxxxl2zppnwUp3y0kHplO\n\tmIy6n7TDjalmd9aIM+Ayv5yti+g=", "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:cc:subject:date:message-id:in-reply-to:references\n\t:mime-version:content-type; s=default; bh=UFTjMF7coq/32of2nCTXPd\n\tkXIrg=; b=oRyvktPS/aYUGc2OOhduQh6tVLmKWXJMwNorUgnXmeHIDoIzGXchPg\n\tRyuUwMLEtoPrlOy2odzAzVCh+Vc/tCp+6t8ApNzPkItDDbnsAmFDQGoB8j4idHnI\n\t/JTg/KQJ11rwqg24A1ocGbSdNqFiTZt75sPYOI9wcJ1vJjdvyJAKs=", "Mailing-List": "contact gcc-patches-help@gcc.gnu.org; run by ezmlm", "Precedence": "bulk", "List-Id": "<gcc-patches.gcc.gnu.org>", "List-Unsubscribe": "<mailto:gcc-patches-unsubscribe-incoming=patchwork.ozlabs.org@gcc.gnu.org>", "List-Archive": "<http://gcc.gnu.org/ml/gcc-patches/>", "List-Post": "<mailto:gcc-patches@gcc.gnu.org>", "List-Help": "<mailto:gcc-patches-help@gcc.gnu.org>", "Sender": "gcc-patches-owner@gcc.gnu.org", "X-Virus-Found": "No", "X-Spam-SWARE-Status": "No, score=-23.9 required=5.0 tests=AWL, BAYES_00,\n\tGIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3,\n\tKAM_LAZY_DOMAIN_SECURITY, RCVD_IN_DNSWL_NONE,\n\tRP_MATCHES_RCVD autolearn=ham version=3.3.2 spammy=H*F:D*synopsys.com,\n\tH*r:10.100.24", "X-HELO": "smtprelay.synopsys.com", "From": "Claudiu Zissulescu <Claudiu.Zissulescu@synopsys.com>", "To": "<gcc-patches@gcc.gnu.org>", "CC": "<Claudiu.Zissulescu@synopsys.com>, <Francois.Bedard@synopsys.com>,\n\t<andrew.burgess@embecosm.com>", "Subject": "[PATCH] [ARC][ZOL] Account for empty body loops", "Date": "Fri, 1 Sep 2017 14:32:10 +0200", "Message-ID": "<1504269130-29760-1-git-send-email-claziss@synopsys.com>", "In-Reply-To": "<20170831190757.GO22260@embecosm.com>", "References": "<20170831190757.GO22260@embecosm.com>", "MIME-Version": "1.0", "Content-Type": "text/plain" }, "content": "From: claziss <claziss@synopsys.com>\n\nHi Andrew,\n\nBy mistake I've pushed an incoplete ZOL-rework patch, and it missing the attached parts. Please can you check if it is ok?\n\nThank you,\nClaudiu\n\ngcc/\n2017-09-01 Claudiu Zissulescu <claziss@synopsys.com>\n\n\t * config/arc/arc.c (hwloop_optimize): Account for empty\n\t body loops.\n\ntestsuite/\n2017-09-01 Claudiu Zissulescu <claziss@synopsys.com>\n\n \t * gcc.target/arc/loop-1.c: Add test.\n---\n gcc/config/arc/arc.c | 13 +++++++++++--\n gcc/testsuite/gcc.target/arc/loop-1.c | 12 ++++++++++++\n 2 files changed, 23 insertions(+), 2 deletions(-)\n create mode 100755 gcc/testsuite/gcc.target/arc/loop-1.c", "diff": "diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c\nindex 52a9b24..d519063 100644\n--- a/gcc/config/arc/arc.c\n+++ b/gcc/config/arc/arc.c\n@@ -7240,6 +7240,12 @@ hwloop_optimize (hwloop_info loop)\n \tfprintf (dump_file, \";; loop %d too long\\n\", loop->loop_no);\n return false;\n }\n+ else if (!loop->length)\n+ {\n+ if (dump_file)\n+\tfprintf (dump_file, \";; loop %d is empty\\n\", loop->loop_no);\n+ return false;\n+ }\n \n /* Check if we use a register or not. */\n if (!REG_P (loop->iter_reg))\n@@ -7311,8 +7317,11 @@ hwloop_optimize (hwloop_info loop)\n && INSN_P (last_insn)\n && (JUMP_P (last_insn) || CALL_P (last_insn)\n \t || GET_CODE (PATTERN (last_insn)) == SEQUENCE\n-\t || get_attr_type (last_insn) == TYPE_BRCC\n-\t || get_attr_type (last_insn) == TYPE_BRCC_NO_DELAY_SLOT))\n+\t /* At this stage we can have (insn (clobber (mem:BLK\n+\t (reg)))) instructions, ignore them. */\n+\t || (GET_CODE (PATTERN (last_insn)) != CLOBBER\n+\t && (get_attr_type (last_insn) == TYPE_BRCC\n+\t\t || get_attr_type (last_insn) == TYPE_BRCC_NO_DELAY_SLOT))))\n {\n if (loop->length + 2 > ARC_MAX_LOOP_LENGTH)\n \t{\ndiff --git a/gcc/testsuite/gcc.target/arc/loop-1.c b/gcc/testsuite/gcc.target/arc/loop-1.c\nnew file mode 100755\nindex 0000000..274bb46\n--- /dev/null\n+++ b/gcc/testsuite/gcc.target/arc/loop-1.c\n@@ -0,0 +1,12 @@\n+/* { dg-do compile } */\n+/* { dg-options \"-O2\" } */\n+\n+/* Check how we handle empty body loops. */\n+\n+int a;\n+void fn1(void) {\n+ int i;\n+ for (; i < 8; i++) {\n+ double A[a];\n+ }\n+}\n", "prefixes": [ "ARC", "ZOL" ] }