From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2223 invoked by alias); 5 Sep 2019 11:11:16 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 2160 invoked by uid 89); 5 Sep 2019 11:11:16 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-23.4 required=5.0 tests=AWL,BAYES_00,GIT_PATCH_0,GIT_PATCH_1,GIT_PATCH_2,GIT_PATCH_3,KAM_NUMSUBJECT,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.1 spammy=HX-Languages-Length:1640 X-HELO: mx0a-001b2d01.pphosted.com Received: from mx0a-001b2d01.pphosted.com (HELO mx0a-001b2d01.pphosted.com) (148.163.156.1) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 05 Sep 2019 11:11:14 +0000 Received: from pps.filterd (m0098409.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x85B7o16143367 for ; Thu, 5 Sep 2019 07:11:12 -0400 Received: from e06smtp02.uk.ibm.com (e06smtp02.uk.ibm.com [195.75.94.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 2uty9dd974-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 05 Sep 2019 07:11:11 -0400 Received: from localhost by e06smtp02.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 5 Sep 2019 12:11:09 +0100 Received: from b06cxnps4075.portsmouth.uk.ibm.com (9.149.109.197) by e06smtp02.uk.ibm.com (192.168.101.132) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 5 Sep 2019 12:11:07 +0100 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x85BB5xq55771348 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 5 Sep 2019 11:11:06 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CB676A4040; Thu, 5 Sep 2019 11:11:05 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 85F86A405D; Thu, 5 Sep 2019 11:11:05 +0000 (GMT) Received: from white.boeblingen.de.ibm.com (unknown [9.152.97.226]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 5 Sep 2019 11:11:05 +0000 (GMT) From: Ilya Leoshkevich To: gcc-patches@gcc.gnu.org Cc: richard.guenther@gmail.com, richard.sandiford@arm.com, segher@kernel.crashing.org, joseph@codesourcery.com, krebbel@linux.ibm.com, rdapp@linux.ibm.com, Ilya Leoshkevich Subject: [PATCH v3 4/9] S/390: Do not use signaling vector comparisons on z13 Date: Thu, 05 Sep 2019 11:11:00 -0000 In-Reply-To: <20190905111019.8951-1-iii@linux.ibm.com> References: <20190905111019.8951-1-iii@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit x-cbid: 19090511-0008-0000-0000-00000311629B X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19090511-0009-0000-0000-00004A2FBBD3 Message-Id: <20190905111019.8951-5-iii@linux.ibm.com> X-IsSubscribed: yes X-SW-Source: 2019-09/txt/msg00274.txt.bz2 z13 supports only non-signaling vector comparisons. This means we cannot vectorize LT, LE, GT, GE and LTGT when compiling for z13. Notify middle-end about this using more restrictive operator predicate in vcond. gcc/ChangeLog: 2019-08-21 Ilya Leoshkevich PR target/77918 * config/s390/vector.md (vcond_comparison_operator): New predicate. (vcond): Use vcond_comparison_operator. --- gcc/config/s390/vector.md | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/gcc/config/s390/vector.md b/gcc/config/s390/vector.md index 0702e1de835..d7a266c5605 100644 --- a/gcc/config/s390/vector.md +++ b/gcc/config/s390/vector.md @@ -614,10 +614,30 @@ operands[2] = GEN_INT (GET_MODE_NUNITS (mode) - 1); }) +(define_predicate "vcond_comparison_operator" + (match_operand 0 "comparison_operator") +{ + if (!HONOR_NANS (GET_MODE (XEXP (op, 0))) + && !HONOR_NANS (GET_MODE (XEXP (op, 1)))) + return true; + switch (GET_CODE (op)) + { + case LE: + case LT: + case GE: + case GT: + case LTGT: + /* Signaling vector comparisons are supported only on z14+. */ + return TARGET_Z14; + default: + return true; + } +}) + (define_expand "vcond" [(set (match_operand:V_HW 0 "register_operand" "") (if_then_else:V_HW - (match_operator 3 "comparison_operator" + (match_operator 3 "vcond_comparison_operator" [(match_operand:V_HW2 4 "register_operand" "") (match_operand:V_HW2 5 "nonmemory_operand" "")]) (match_operand:V_HW 1 "nonmemory_operand" "") -- 2.21.0