From patchwork Tue Aug 22 02:29:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Xu X-Patchwork-Id: 1823816 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=server2.sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=patchwork.ozlabs.org) Received: from server2.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 ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RVCx968r3z1yNm for ; Tue, 22 Aug 2023 12:30:03 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 1AA1E385DC0D for ; Tue, 22 Aug 2023 02:30:01 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from azure-sdnproxy.icoremail.net (azure-sdnproxy.icoremail.net [207.46.229.174]) by sourceware.org (Postfix) with ESMTP id 657763858D33 for ; Tue, 22 Aug 2023 02:29:45 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 657763858D33 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=eswincomputing.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=eswincomputing.com Received: from host014-ubuntu-1804.lxd (unknown [10.12.130.31]) by app1 (Coremail) with SMTP id EwgMCgDXdcWRHeRkvug_AA--.1122S4; Tue, 22 Aug 2023 10:29:38 +0800 (CST) From: Li Xu To: gcc-patches@gcc.gnu.org Cc: kito.cheng@gmail.com, palmer@dabbelt.com, juzhe.zhong@rivai.ai, xuli Subject: [PATCH] RISCV: Fix PR111074 [GCC13 BUG] Date: Tue, 22 Aug 2023 02:29:35 +0000 Message-Id: <20230822022935.9877-1-xuli1@eswincomputing.com> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: EwgMCgDXdcWRHeRkvug_AA--.1122S4 X-Coremail-Antispam: 1UD129KBjvdXoWrZry5Kw48Cr4rWry3ZFyrZwb_yoWDGwc_ur y8WrZFvrWUGayrKF4kAF40qFy3G395JryqgrZ7Cw12kF17Wr13A34vkFWkKr15uryIk3Wx Was3Wr93tr17WjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUb28FF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j 6F4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oV Cq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0 I7IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r 4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwCY02Avz4vE-syl42xK 82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGw C20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48J MIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMI IF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E 87Iv6xkF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU0xZFpf9x0JUdHUDUUUUU= X-CM-SenderInfo: 50xoxi46hv4xpqfrz1xxwl0woofrz/ X-Spam-Status: No, score=-12.9 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, KAM_SHORT, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) 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+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" From: xuli This patch fixes this issue happens on GCC-13. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111074 This patch should be backported to GCC-13. GCC-14 has rewritten propagate_avl function, so there is no issue. PR target/111074 gcc/ChangeLog: * config/riscv/riscv-vsetvl.cc (extract_single_source): Fix bug. --- gcc/config/riscv/riscv-vsetvl.cc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/gcc/config/riscv/riscv-vsetvl.cc b/gcc/config/riscv/riscv-vsetvl.cc index 789eb04b78d..bd45cb97e63 100644 --- a/gcc/config/riscv/riscv-vsetvl.cc +++ b/gcc/config/riscv/riscv-vsetvl.cc @@ -1183,6 +1183,9 @@ extract_single_source (set_info *set) return nullptr; hash_set sets = get_all_sets (set, true, false, true); + if (sets.is_empty ()) + return nullptr; + insn_info *first_insn = (*sets.begin ())->insn (); if (first_insn->is_artificial ()) return nullptr;