From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from rock.gnat.com (rock.gnat.com [IPv6:2620:20:4000:0:a9e:1ff:fe9b:1d1]) by sourceware.org (Postfix) with ESMTPS id 7EE423858C53 for ; Fri, 2 Dec 2022 09:26:46 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 7EE423858C53 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=adacore.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=adacore.com Received: from localhost (localhost.localdomain [127.0.0.1]) by filtered-rock.gnat.com (Postfix) with ESMTP id 49EF3116B1E; Fri, 2 Dec 2022 04:26:46 -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 oav-WUN9M6FA; Fri, 2 Dec 2022 04:26:46 -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 12AF8116B1A; Fri, 2 Dec 2022 04:26:45 -0500 (EST) Received: from livre (livre.home [172.31.160.2]) by free.home (8.15.2/8.15.2) with ESMTPS id 2B29QdcW1291259 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Fri, 2 Dec 2022 06:26:39 -0300 From: Alexandre Oliva To: gcc-patches@gcc.gnu.org Cc: Rainer Orth , Mike Stump Subject: [PATCH] [PR42093] [arm] [thumb2] disable tree-dce for test Organization: Free thinker, does not speak for AdaCore Errors-To: aoliva@lxoliva.fsfla.org Date: Fri, 02 Dec 2022 06:26:39 -0300 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.84 X-Spam-Status: No, score=-12.2 required=5.0 tests=BAYES_00,GIT_PATCH_0,KAM_DMARC_STATUS,KAM_SHORT,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 List-Id: CD-DCE introduces blocks to share common PHI nodes, which replaces a backwards branch that used to prevent the thumb2 jump table shortening that PR42093 tested for. In order to keep on testing that the backward branch prevents the jumptable shortening, disable tree-dce. Regstraped on x86_64-linux-gnu, also tested with crosses to riscv64-elf and arm-eabi. Ok to install? for gcc/testsuite/ChangeLog PR target/42093 * gcc.target/arm/pr42093.c: Disable tree-dce. --- gcc/testsuite/gcc.target/arm/pr42093.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/testsuite/gcc.target/arm/pr42093.c b/gcc/testsuite/gcc.target/arm/pr42093.c index 7ba2f933eef81..69b1470607c7f 100644 --- a/gcc/testsuite/gcc.target/arm/pr42093.c +++ b/gcc/testsuite/gcc.target/arm/pr42093.c @@ -1,4 +1,4 @@ -/* { dg-options "-mthumb -O2 -fno-reorder-blocks" } */ +/* { dg-options "-mthumb -O2 -fno-reorder-blocks -fno-tree-dce" } */ /* { dg-require-effective-target arm_thumb2_ok } */ /* { dg-final { scan-assembler-not "tbb" } } */ /* { dg-final { scan-assembler-not "tbh" } } */ -- Alexandre Oliva, happy hacker https://FSFLA.org/blogs/lxo/ Free Software Activist GNU Toolchain Engineer Disinformation flourishes because many people care deeply about injustice but very few check the facts. Ask me about