From patchwork Thu Dec 3 11:35:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Maciej W. Rozycki" X-Patchwork-Id: 1410344 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=sourceware.org; envelope-from=gcc-patches-bounces@gcc.gnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux-mips.org Received: from sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4Cmtzt2Gvbz9sW0 for ; Thu, 3 Dec 2020 22:35:06 +1100 (AEDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 98C263971814; Thu, 3 Dec 2020 11:35:03 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from cvs.linux-mips.org (eddie.linux-mips.org [148.251.95.138]) by sourceware.org (Postfix) with ESMTP id 2E6F4386186A for ; Thu, 3 Dec 2020 11:35:01 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 2E6F4386186A Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=linux-mips.org Authentication-Results: sourceware.org; spf=none smtp.mailfrom=macro@linux-mips.org Received: from localhost.localdomain ([127.0.0.1]:34296 "EHLO localhost" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S23990827AbgLCLfBBGt0g (ORCPT ); Thu, 3 Dec 2020 12:35:01 +0100 Date: Thu, 3 Dec 2020 11:35:01 +0000 (GMT) From: "Maciej W. Rozycki" To: gcc-patches@gcc.gnu.org Subject: [PATCH 5/6] loop-doloop: Add missing call to `onlyjump_p' In-Reply-To: Message-ID: References: MIME-Version: 1.0 X-Spam-Status: No, score=-3.2 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, KHOP_HELO_FCRDNS, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces@gcc.gnu.org Sender: "Gcc-patches" Keep any jump that has side effects as those must not be removed. gcc/ * loop-doloop.c (add_test): Only remove the jump if `onlyjump_p'. --- gcc/loop-doloop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) gcc-loop-doloop-add-test-only-jump.diff Index: gcc/gcc/loop-doloop.c =================================================================== --- gcc.orig/gcc/loop-doloop.c +++ gcc/gcc/loop-doloop.c @@ -378,7 +378,7 @@ add_test (rtx cond, edge *e, basic_block bb = split_edge_and_insert (*e, seq); *e = single_succ_edge (bb); - if (any_uncondjump_p (jump)) + if (any_uncondjump_p (jump) && onlyjump_p (jump)) { /* The condition is always true. */ delete_insn (jump);