From patchwork Wed Feb 16 10:24:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Sandiford X-Patchwork-Id: 51155 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 40AEF3858420 for ; Wed, 16 Feb 2022 10:25:20 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 40AEF3858420 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1645007120; bh=amAnqQ2+TrbTNm/xC/HH0383D0DXkD1PxHXENmy1yWU=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=wYaJM9FY/6EaJ/9VxPQqhl0zXqgFBahedmkB64iBw6Q0QfpA89noA/Zq6NP7nKIr7 hjmpnN5nYEfDaMIHcZL8kGZNGnGLZ6bPo0ZSWB/xVA4ZWzEcXoNH3iu+OhW+2iygNc qLr0eWB4zMWsIIG4qJmzbnqqOBYOZ1CwkxULtHNw= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by sourceware.org (Postfix) with ESMTP id 8ECA13857C6E for ; Wed, 16 Feb 2022 10:24:09 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 8ECA13857C6E Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 21868D6E for ; Wed, 16 Feb 2022 02:24:09 -0800 (PST) Received: from localhost (unknown [10.32.98.88]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 999463F718 for ; Wed, 16 Feb 2022 02:24:08 -0800 (PST) To: gcc-patches@gcc.gnu.org Mail-Followup-To: gcc-patches@gcc.gnu.org, richard.sandiford@arm.com Subject: [pushed] aarch64: Tweak atomic-inst-cas.c options Date: Wed, 16 Feb 2022 10:24:07 +0000 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 X-Spam-Status: No, score=-12.4 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, KAM_SHORT, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) 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: , X-Patchwork-Original-From: Richard Sandiford via Gcc-patches From: Richard Sandiford Reply-To: Richard Sandiford Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" atomic-inst-cas.c has code to skip __atomic_compare_exchange_n calls for invalid memory orderings, but -Winvalid-memory-model applies before the dead code is removed (which is the right behaviour IMO). This patch therefore suppresses the warning for this test. Tested on aarch64-linux-gnu & pushed. Richard gcc/testsuite/ * gcc.target/aarch64/atomic-inst-cas.c: Add -Wno-invalid-memory-model. --- gcc/testsuite/gcc.target/aarch64/atomic-inst-cas.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/gcc/testsuite/gcc.target/aarch64/atomic-inst-cas.c b/gcc/testsuite/gcc.target/aarch64/atomic-inst-cas.c index f6f28922319..0b4533adade 100644 --- a/gcc/testsuite/gcc.target/aarch64/atomic-inst-cas.c +++ b/gcc/testsuite/gcc.target/aarch64/atomic-inst-cas.c @@ -1,5 +1,7 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -march=armv8-a+lse" } */ +/* -Winvalid-memory-model warnings are issued before the dead invalid calls + are removed. */ +/* { dg-options "-O2 -march=armv8-a+lse -Wno-invalid-memory-model" } */ /* Test ARMv8.1-A CAS instruction. */