From patchwork Fri Dec 25 06:22:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Oliva X-Patchwork-Id: 1420576 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=8.43.85.97; helo=sourceware.org; envelope-from=gcc-patches-bounces@gcc.gnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=adacore.com Received: from sourceware.org (unknown [8.43.85.97]) (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 4D2H155tYnz9sW0 for ; Fri, 25 Dec 2020 17:22:33 +1100 (AEDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id BB3E93857005; Fri, 25 Dec 2020 06:22:31 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from rock.gnat.com (rock.gnat.com [IPv6:2620:20:4000:0:a9e:1ff:fe9b:1d1]) by sourceware.org (Postfix) with ESMTP id D702A3858026 for ; Fri, 25 Dec 2020 06:22:29 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org D702A3858026 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=adacore.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=oliva@adacore.com Received: from localhost (localhost.localdomain [127.0.0.1]) by filtered-rock.gnat.com (Postfix) with ESMTP id B5EFE1174F9; Fri, 25 Dec 2020 01:22:29 -0500 (EST) X-Virus-Scanned: Debian amavisd-new at gnat.com Received: from rock.gnat.com ([127.0.0.1]) by localhost (rock.gnat.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id U5hoyxsFEEZH; Fri, 25 Dec 2020 01:22:29 -0500 (EST) Received: from free.home (tron.gnat.com [IPv6:2620:20:4000:0:46a8:42ff:fe0e:e294]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by rock.gnat.com (Postfix) with ESMTPS id 83C691174F7; Fri, 25 Dec 2020 01:22:29 -0500 (EST) Received: from livre (livre.home [172.31.160.2]) by free.home (8.15.2/8.15.2) with ESMTPS id 0BP6MNGt128415 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 25 Dec 2020 03:22:23 -0300 From: Alexandre Oliva To: gcc-patches@gcc.gnu.org Subject: -mno-long-calls for expected regalloc in arm/fp16-aapcs-2.c test Organization: Free thinker, does not speak for AdaCore Date: Fri, 25 Dec 2020 03:22:23 -0300 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 X-Spam-Status: No, score=-11.9 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham 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" The implicit -mlong-calls used in our arm-vxworks configurations changes the register allocation patterns in the arm/fp16-aapcs-2.c test: r3 ends up used in the long-call sequence, and we end up using ip as a temporary, which doesn't match the expected mov patterns. This patch adds an explicit -mno-long-calls for the generated code to match the expectation. Regstrapped on x86_64-linux-gnu, also tested on arm-vxworks7r2. Ok to install? for gcc/testsuite/ChangeLog * gcc.target/arm/fp16-aapcs-2.c: Use -mno-long-calls. --- gcc/testsuite/gcc.target/arm/fp16-aapcs-2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/testsuite/gcc.target/arm/fp16-aapcs-2.c b/gcc/testsuite/gcc.target/arm/fp16-aapcs-2.c index 51a76fc069353..c34387f57828d 100644 --- a/gcc/testsuite/gcc.target/arm/fp16-aapcs-2.c +++ b/gcc/testsuite/gcc.target/arm/fp16-aapcs-2.c @@ -1,6 +1,6 @@ /* { dg-do compile } */ /* { dg-require-effective-target arm_fp16_ok } */ -/* { dg-options "-mfloat-abi=softfp -O2" } */ +/* { dg-options "-mfloat-abi=softfp -O2 -mno-long-calls" } */ /* { dg-add-options arm_fp16_ieee } */ /* { dg-skip-if "incompatible float-abi" { arm*-*-* } { "-mfloat-abi=hard" } } */