From patchwork Mon Nov 12 11:25:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Zissulescu Ianculescu X-Patchwork-Id: 996352 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org (client-ip=209.132.180.131; helo=sourceware.org; envelope-from=gcc-patches-return-489712-incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.b="rClPpQ5V"; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="c2D4QKL/"; dkim-atps=neutral Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 42tpNK53n6z9s1x for ; Mon, 12 Nov 2018 22:25:53 +1100 (AEDT) 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:in-reply-to:references :mime-version:content-transfer-encoding; q=dns; s=default; b=b3H NdbWT8OQmyY9hed3Hpf14ywH7G1uXVhBg7haNX4GPhTSgFpRGOlT8g8k3qR9p5xN fnmd2sT/aAJT+OgaoF9n+li+ZcfUYXFXPn2REkSB5a2mIEsljxvB7BsbWnI2mgTi JCAdxLHvnNP/WvuTc2E6SRHoRxa7Qm1tP/1fi5gg= 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:in-reply-to:references :mime-version:content-transfer-encoding; s=default; bh=7OO8awtm2 PMczRn0lIZcOErvbRk=; b=rClPpQ5VYhb8/Act7H+tYgEtWpifD/dxY2qbHAv0A n1P2Vjq/gn9/uYAKhtx5IdpdxVpMRl8wfe3FEr7pySMS68TrFhZtPP0mvJmpPs4o r3bdLv5oe/AGIyPHuaTpubFYTzEE6iq17IVLGc2gHEUfY0561RdYd8+yoxzW7Bqm 6U= Received: (qmail 34756 invoked by alias); 12 Nov 2018 11:25:26 -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 34636 invoked by uid 89); 12 Nov 2018 11:25:26 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-26.4 required=5.0 tests=AWL, BAYES_00, FREEMAIL_FROM, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, SPF_PASS autolearn=ham version=3.3.2 spammy=U*claziss, sk:claziss, HX-Received:sk:g6-v6mr, Hx-languages-length:1056 X-HELO: mail-wr1-f65.google.com Received: from mail-wr1-f65.google.com (HELO mail-wr1-f65.google.com) (209.85.221.65) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 12 Nov 2018 11:25:24 +0000 Received: by mail-wr1-f65.google.com with SMTP id b13so8878367wrx.6 for ; Mon, 12 Nov 2018 03:25:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=WqXB2QEjMhJSv58bQXAinNrBQIhc4QlVvoPZG8tPGHI=; b=c2D4QKL/p1M8JeHR442mbPqQeZpdXB8BJAM53Id/AzkCzBLgWRwoH6MSIjC+rFeQ75 1ELzorO/Hz7j0j/XOGRbw2RVFCBBWVEB2yodXDNPWTCcq/PQ2dJiOUH48+lJAMA5g1ex qZowPEm4POdFwr+xkSr35VhOSJonnVYtqbRfkfj+6mFER8QpfpNvf8omDOlsHOr4mAtH cKKzXP8p6T9QlqtD9kba++YKGHKUyAGGfjtTQonPJhAOtskngMffF7ZTaiM1W+0ugmJB 6wAC4T5FVwmHeutiVwQfepGFQcrqIF7PEucQlscptQk9lVKW1F6ZI3+VmEj8E87nuVw6 qcPg== Received: from localhost.localdomain ([86.120.4.133]) by smtp.gmail.com with ESMTPSA id g5-v6sm20317844wrw.97.2018.11.12.03.25.21 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 12 Nov 2018 03:25:21 -0800 (PST) From: Claudiu Zissulescu To: gcc-patches@gcc.gnu.org Cc: fbedard@synopsys.com, andrew.burgess@embecosm.com, claziss@synopsys.com Subject: [PATCH 2/3] [ARC] Do not emit ZOL in the presence of text jump tables. Date: Mon, 12 Nov 2018 13:25:12 +0200 Message-Id: <20181112112513.4369-3-claziss@gmail.com> In-Reply-To: <20181112112513.4369-1-claziss@gmail.com> References: <20181112112513.4369-1-claziss@gmail.com> MIME-Version: 1.0 X-IsSubscribed: yes Avoid emitting lp instruction when in its ZOL body we find a jump table data in text section. gcc/ xxxx-xx-xx Claudiu Zissulescu * config/arc/arc.c (hwloop_optimize): Bailout when detecting a jump table data in the text section. --- gcc/config/arc/arc.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c index a92456b457d..9eab4c27284 100644 --- a/gcc/config/arc/arc.c +++ b/gcc/config/arc/arc.c @@ -7791,7 +7791,17 @@ hwloop_optimize (hwloop_info loop) for (insn = loop->start_label; insn && insn != loop->loop_end; insn = NEXT_INSN (insn)) - length += NONDEBUG_INSN_P (insn) ? get_attr_length (insn) : 0; + { + length += NONDEBUG_INSN_P (insn) ? get_attr_length (insn) : 0; + if (JUMP_TABLES_IN_TEXT_SECTION + && JUMP_TABLE_DATA_P (insn)) + { + if (dump_file) + fprintf (dump_file, ";; loop %d has a jump table\n", + loop->loop_no); + return false; + } + } if (!insn) {