From patchwork Tue Jun 6 09:53:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oluwatamilore Adebayo X-Patchwork-Id: 1791019 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=sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=Kq/pYqQQ; dkim-atps=neutral Received: from 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 (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Qb5RC3hSWz20WK for ; Tue, 6 Jun 2023 19:54:15 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 659523858000 for ; Tue, 6 Jun 2023 09:54:13 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 659523858000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1686045253; bh=Bfrf+7/mnhnKsf4Xz632AI0GE67hB/Mspb0KLTWh49c=; h=To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=Kq/pYqQQP/AZgxA2L883KayqiD1BV1co88JDixnbUR3WR+5wAL1+JlXCabb69agFD M/8HlAyir6G45pJVrCwHTh7lCZ44iKbCNiYpTcJu3DnTyph+Z8BlI6r+4yqYtR1Ha5 iCweM9+kjUEaSWwURTeu7gW61aDp4jNps9GrjmSo= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from EUR05-DB8-obe.outbound.protection.outlook.com (mail-db8eur05on2066.outbound.protection.outlook.com [40.107.20.66]) by sourceware.org (Postfix) with ESMTPS id EA8063858C5F for ; Tue, 6 Jun 2023 09:53:49 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org EA8063858C5F Received: from DUZPR01CA0155.eurprd01.prod.exchangelabs.com (2603:10a6:10:4bd::11) by AS8PR08MB8658.eurprd08.prod.outlook.com (2603:10a6:20b:564::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6455.32; Tue, 6 Jun 2023 09:53:43 +0000 Received: from DBAEUR03FT016.eop-EUR03.prod.protection.outlook.com (2603:10a6:10:4bd:cafe::57) by DUZPR01CA0155.outlook.office365.com (2603:10a6:10:4bd::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6455.33 via Frontend Transport; Tue, 6 Jun 2023 09:53:43 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 63.35.35.123) smtp.mailfrom=arm.com; dkim=pass (signature was verified) header.d=armh.onmicrosoft.com;dmarc=pass action=none header.from=arm.com; Received-SPF: Pass (protection.outlook.com: domain of arm.com designates 63.35.35.123 as permitted sender) receiver=protection.outlook.com; client-ip=63.35.35.123; helo=64aa7808-outbound-1.mta.getcheckrecipient.com; pr=C Received: from 64aa7808-outbound-1.mta.getcheckrecipient.com (63.35.35.123) by DBAEUR03FT016.mail.protection.outlook.com (100.127.142.204) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6477.19 via Frontend Transport; Tue, 6 Jun 2023 09:53:43 +0000 Received: ("Tessian outbound e13c2446394c:v136"); Tue, 06 Jun 2023 09:53:43 +0000 X-CheckRecipientChecked: true X-CR-MTA-CID: 2011a4ea00953b13 X-CR-MTA-TID: 64aa7808 Received: from 576f475cd743.1 by 64aa7808-outbound-1.mta.getcheckrecipient.com id 7A4CF2A3-0E79-400F-90FD-C6EF890947CF.1; Tue, 06 Jun 2023 09:53:37 +0000 Received: from EUR05-AM6-obe.outbound.protection.outlook.com by 64aa7808-outbound-1.mta.getcheckrecipient.com with ESMTPS id 576f475cd743.1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384); Tue, 06 Jun 2023 09:53:37 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=FJ/QLZ/QlQsfPxiUnyWmbXuEaJXQQM4kMtAybBj3LTLd+H50dGKim0eKfT32rSzybSTCODiPjWR7R5hJbwITJVfRcvSDiKy34ozk5YW9uYHSKXDSy5z/Tc8A+oq8XZN+k3wmTA/S4S/M1BYcnf7OMWZlRiDLxWkDwaXlRBiUcsDvO/1fcmWLHAtPO3Ki3P2acV9I8nfd7BxFWlegvJc+mPiUzlwI0Vqd6bg1rzPL1VmS2VpXMv8i26sVDU91cnrwogkauvbMuUJQ/LU9vderaFy92uNN0iGiPmDSSx9dYVJ13/zg9kN+BlDMShcT7yFNg8c/zW/YEDPj7+weiXzi7Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=Bfrf+7/mnhnKsf4Xz632AI0GE67hB/Mspb0KLTWh49c=; b=XNBaVbSCwxHOV9Kwri1fEvQj02saV8inmL8wHyMTegBIcPtIBlo0CQUDzWqA2hBHIkzBWvWD1epUt8jYiA0EQdcDKuPZPFLSHz8TZy/fFHCTeFxwxEQ2HUprHsVj33XXCKXmJN+63b/Lgr4ds0H3TZnDWJsRH7ocNNT5pNZtZFMY+WIl5p75I165+SsIKECHoKklcXrncJPZ3QcVUhYe0csZdrx/65PvJBEcoV6D/4wNVEJX9TALCg9bjpS4ODRwENJNzsDmLH6x7odfF/ixWKmgPMn7E++mJayMiiWazLLl2sPbK1IVMMCKG7KGD1ZY9L3pYbOyTCwxE6Qw02DZYw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 40.67.248.234) smtp.rcpttodomain=armh.onmicrosoft.com smtp.mailfrom=arm.com; dmarc=pass (p=none sp=none pct=100) action=none header.from=arm.com; dkim=none (message not signed); arc=none Received: from AM0PR02CA0014.eurprd02.prod.outlook.com (2603:10a6:208:3e::27) by PA4PR08MB7522.eurprd08.prod.outlook.com (2603:10a6:102:26b::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6455.32; Tue, 6 Jun 2023 09:53:33 +0000 Received: from AM7EUR03FT020.eop-EUR03.prod.protection.outlook.com (2603:10a6:208:3e:cafe::fb) by AM0PR02CA0014.outlook.office365.com (2603:10a6:208:3e::27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6455.32 via Frontend Transport; Tue, 6 Jun 2023 09:53:33 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 40.67.248.234) smtp.mailfrom=arm.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=arm.com; Received-SPF: Pass (protection.outlook.com: domain of arm.com designates 40.67.248.234 as permitted sender) receiver=protection.outlook.com; client-ip=40.67.248.234; helo=nebula.arm.com; pr=C Received: from nebula.arm.com (40.67.248.234) by AM7EUR03FT020.mail.protection.outlook.com (100.127.140.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6477.19 via Frontend Transport; Tue, 6 Jun 2023 09:53:33 +0000 Received: from AZ-NEU-EX04.Arm.com (10.251.24.32) by AZ-NEU-EX04.Arm.com (10.251.24.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23; Tue, 6 Jun 2023 09:53:32 +0000 Received: from e119885.cambridge.arm.com (10.2.78.52) by mail.arm.com (10.251.24.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23 via Frontend Transport; Tue, 6 Jun 2023 09:53:32 +0000 To: CC: , , Subject: [PATCH 1/2] Missed opportunity to use [SU]ABD Date: Tue, 6 Jun 2023 10:53:21 +0100 Message-ID: <20230606095321.24585-1-oluwatamilore.adebayo@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230606095044.24470-1-oluwatamilore.adebayo@arm.com> References: <20230606095044.24470-1-oluwatamilore.adebayo@arm.com> MIME-Version: 1.0 X-EOPAttributedMessage: 1 X-MS-TrafficTypeDiagnostic: AM7EUR03FT020:EE_|PA4PR08MB7522:EE_|DBAEUR03FT016:EE_|AS8PR08MB8658:EE_ X-MS-Office365-Filtering-Correlation-Id: e547e576-a767-4c09-5e02-08db6673ea05 x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:40.67.248.234; CTRY:IE; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:nebula.arm.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230028)(4636009)(396003)(376002)(346002)(136003)(39860400002)(451199021)(36840700001)(46966006)(40470700004)(82310400005)(47076005)(83380400001)(7049001)(336012)(426003)(478600001)(37006003)(82740400003)(44832011)(40480700001)(6862004)(8676002)(8936002)(316002)(81166007)(4326008)(70586007)(70206006)(356005)(5660300002)(40460700003)(45080400002)(41300700001)(86362001)(36756003)(6666004)(30864003)(7696005)(2906002)(54906003)(36860700001)(6200100001)(186003)(1076003)(26005)(2616005)(36900700001); DIR:OUT; SFP:1101; X-MS-Exchange-Transport-CrossTenantHeadersStamped: PA4PR08MB7522 X-MS-Exchange-Transport-CrossTenantHeadersStripped: DBAEUR03FT016.eop-EUR03.prod.protection.outlook.com X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id-Prvs: e520a66f-5b41-437b-69ed-08db6673e42d X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:63.35.35.123; CTRY:IE; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:64aa7808-outbound-1.mta.getcheckrecipient.com; PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com; CAT:NONE; SFS:(13230028)(4636009)(346002)(136003)(376002)(39860400002)(396003)(451199021)(40470700004)(36840700001)(46966006)(36756003)(37006003)(54906003)(40460700003)(6200100001)(30864003)(2906002)(82310400005)(45080400002)(478600001)(86362001)(41300700001)(6862004)(8676002)(5660300002)(8936002)(82740400003)(316002)(44832011)(81166007)(40480700001)(4326008)(70586007)(70206006)(83380400001)(47076005)(1076003)(2616005)(26005)(186003)(426003)(36860700001)(336012)(7049001)(7696005)(6666004); DIR:OUT; SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Jun 2023 09:53:43.5924 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e547e576-a767-4c09-5e02-08db6673ea05 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: DBAEUR03FT016.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR08MB8658 X-Spam-Status: No, score=-11.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, FORGED_SPF_HELO, GIT_PATCH_0, KAM_DMARC_NONE, KAM_LOTSOFHASH, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE, UNPARSEABLE_RELAY 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: , X-Patchwork-Original-From: Oluwatamilore Adebayo via Gcc-patches From: Oluwatamilore Adebayo Reply-To: Oluwatamilore Adebayo Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" From: oluade01 This adds a recognition pattern for the non-widening absolute difference (ABD). gcc/ChangeLog: * doc/md.texi (sabd, uabd): Document them. * internal-fn.def (ABD): Use new optab. * optabs.def (sabd_optab, uabd_optab): New optabs, * tree-vect-patterns.cc (vect_recog_absolute_difference): Recognize the following idiom abs (a - b). (vect_recog_sad_pattern): Refactor to use vect_recog_absolute_difference. (vect_recog_abd_pattern): Use patterns found by vect_recog_absolute_difference to build a new ABD internal call. --- gcc/doc/md.texi | 10 ++ gcc/internal-fn.def | 3 + gcc/optabs.def | 2 + gcc/tree-vect-patterns.cc | 246 +++++++++++++++++++++++++++++++++----- 4 files changed, 232 insertions(+), 29 deletions(-) diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index 07bf8bdebffb2e523f25a41f2b57e43c0276b745..77c77c6ecb0c29ef764e914e88d1090c45fb9a9e 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -5778,6 +5778,16 @@ Other shift and rotate instructions, analogous to the Vector shift and rotate instructions that take vectors as operand 2 instead of a scalar type. +@cindex @code{uabd@var{m}} instruction pattern +@cindex @code{sabd@var{m}} instruction pattern +@item @samp{uabd@var{m}}, @samp{sabd@var{m}} +Signed and unsigned absolute difference instructions. These +instructions find the difference between operands 1 and 2 +then return the absolute value. A C code equivalent would be: +@smallexample +op0 = op1 > op2 ? op1 - op2 : op2 - op1; +@end smallexample + @cindex @code{avg@var{m}3_floor} instruction pattern @cindex @code{uavg@var{m}3_floor} instruction pattern @item @samp{avg@var{m}3_floor} diff --git a/gcc/internal-fn.def b/gcc/internal-fn.def index 7fe742c2ae713e7152ab05cfdfba86e4e0aa3456..0f1724ecf37a31c231572edf90b5577e2d82f468 100644 --- a/gcc/internal-fn.def +++ b/gcc/internal-fn.def @@ -167,6 +167,9 @@ DEF_INTERNAL_OPTAB_FN (FMS, ECF_CONST, fms, ternary) DEF_INTERNAL_OPTAB_FN (FNMA, ECF_CONST, fnma, ternary) DEF_INTERNAL_OPTAB_FN (FNMS, ECF_CONST, fnms, ternary) +DEF_INTERNAL_SIGNED_OPTAB_FN (ABD, ECF_CONST | ECF_NOTHROW, first, + sabd, uabd, binary) + DEF_INTERNAL_SIGNED_OPTAB_FN (AVG_FLOOR, ECF_CONST | ECF_NOTHROW, first, savg_floor, uavg_floor, binary) DEF_INTERNAL_SIGNED_OPTAB_FN (AVG_CEIL, ECF_CONST | ECF_NOTHROW, first, diff --git a/gcc/optabs.def b/gcc/optabs.def index 695f5911b300c9ca5737de9be809fa01aabe5e01..29bc92281a2175f898634cbe6af63c18021e5268 100644 --- a/gcc/optabs.def +++ b/gcc/optabs.def @@ -359,6 +359,8 @@ OPTAB_D (mask_fold_left_plus_optab, "mask_fold_left_plus_$a") OPTAB_D (extract_last_optab, "extract_last_$a") OPTAB_D (fold_extract_last_optab, "fold_extract_last_$a") +OPTAB_D (uabd_optab, "uabd$a3") +OPTAB_D (sabd_optab, "sabd$a3") OPTAB_D (savg_floor_optab, "avg$a3_floor") OPTAB_D (uavg_floor_optab, "uavg$a3_floor") OPTAB_D (savg_ceil_optab, "avg$a3_ceil") diff --git a/gcc/tree-vect-patterns.cc b/gcc/tree-vect-patterns.cc index a49b09539776c0056e77f99b10365d0a8747fbc5..96dfeb25cdc307e8a795af1fef41fac1c0195515 100644 --- a/gcc/tree-vect-patterns.cc +++ b/gcc/tree-vect-patterns.cc @@ -770,6 +770,86 @@ vect_split_statement (vec_info *vinfo, stmt_vec_info stmt2_info, tree new_rhs, } } +/* Look for the following pattern + X = x[i] + Y = y[i] + DIFF = X - Y + DAD = ABS_EXPR + + ABS_STMT should point to a statement of code ABS_EXPR or ABSU_EXPR. + HALF_TYPE and UNPROM will be set should the statement be found to + be a widened operation. + DIFF_OPRNDS will be set to the two inputs of the MINUS_EXPR preceding + ABS_STMT, otherwise it will be set the operations found by + vect_widened_op_tree. + */ +static bool +vect_recog_absolute_difference (vec_info *vinfo, gassign *abs_stmt, + tree *half_type, + vect_unpromoted_value unprom[2], + gassign **diff_stmt) +{ + if (!abs_stmt) + return false; + + /* FORNOW. Can continue analyzing the def-use chain when this stmt in a phi + inside the loop (in case we are analyzing an outer-loop). */ + enum tree_code code = gimple_assign_rhs_code (abs_stmt); + if (code != ABS_EXPR && code != ABSU_EXPR) + return false; + + tree abs_oprnd = gimple_assign_rhs1 (abs_stmt); + tree abs_type = TREE_TYPE (abs_oprnd); + if (!abs_oprnd) + return false; + if (!ANY_INTEGRAL_TYPE_P (abs_type) + || TYPE_OVERFLOW_WRAPS (abs_type) + || TYPE_UNSIGNED (abs_type)) + return false; + + /* Peel off conversions from the ABS input. This can involve sign + changes (e.g. from an unsigned subtraction to a signed ABS input) + or signed promotion, but it can't include unsigned promotion. + (Note that ABS of an unsigned promotion should have been folded + away before now anyway.) */ + vect_unpromoted_value unprom_diff; + abs_oprnd = vect_look_through_possible_promotion (vinfo, abs_oprnd, + &unprom_diff); + if (!abs_oprnd) + return false; + if (TYPE_PRECISION (unprom_diff.type) != TYPE_PRECISION (abs_type) + && TYPE_UNSIGNED (unprom_diff.type)) + return false; + + /* We then detect if the operand of abs_expr is defined by a minus_expr. */ + stmt_vec_info diff_stmt_vinfo = vect_get_internal_def (vinfo, abs_oprnd); + if (!diff_stmt_vinfo) + return false; + + gassign *diff = dyn_cast (STMT_VINFO_STMT (diff_stmt_vinfo)); + + if (diff_stmt) + *diff_stmt = diff; + + /* FORNOW. Can continue analyzing the def-use chain when this stmt in a phi + inside the loop (in case we are analyzing an outer-loop). */ + if (vect_widened_op_tree (vinfo, diff_stmt_vinfo, + MINUS_EXPR, WIDEN_MINUS_EXPR, + false, 2, unprom, half_type)) + return true; + + /* Failed to find a widen operation so we check for a regular MINUS_EXPR. */ + if (diff + && gimple_assign_rhs_code (diff) == MINUS_EXPR + && (TYPE_UNSIGNED (abs_type) || TYPE_OVERFLOW_UNDEFINED (abs_type))) + { + *half_type = NULL_TREE; + return true; + } + + return false; +} + /* Convert UNPROM to TYPE and return the result, adding new statements to STMT_INFO's pattern definition statements if no better way is available. VECTYPE is the vector form of TYPE. @@ -1308,40 +1388,31 @@ vect_recog_sad_pattern (vec_info *vinfo, /* FORNOW. Can continue analyzing the def-use chain when this stmt in a phi inside the loop (in case we are analyzing an outer-loop). */ gassign *abs_stmt = dyn_cast (abs_stmt_vinfo->stmt); - if (!abs_stmt - || (gimple_assign_rhs_code (abs_stmt) != ABS_EXPR - && gimple_assign_rhs_code (abs_stmt) != ABSU_EXPR)) - return NULL; + vect_unpromoted_value unprom[2]; - tree abs_oprnd = gimple_assign_rhs1 (abs_stmt); - tree abs_type = TREE_TYPE (abs_oprnd); - if (TYPE_UNSIGNED (abs_type)) - return NULL; + if (!abs_stmt) + { + gcall *abd_stmt = dyn_cast (abs_stmt_vinfo->stmt); + if (!abd_stmt + || !gimple_call_internal_p (abd_stmt) + || gimple_call_internal_fn (abd_stmt) != IFN_ABD) + return NULL; - /* Peel off conversions from the ABS input. This can involve sign - changes (e.g. from an unsigned subtraction to a signed ABS input) - or signed promotion, but it can't include unsigned promotion. - (Note that ABS of an unsigned promotion should have been folded - away before now anyway.) */ - vect_unpromoted_value unprom_diff; - abs_oprnd = vect_look_through_possible_promotion (vinfo, abs_oprnd, - &unprom_diff); - if (!abs_oprnd) - return NULL; - if (TYPE_PRECISION (unprom_diff.type) != TYPE_PRECISION (abs_type) - && TYPE_UNSIGNED (unprom_diff.type)) - return NULL; + tree abd_oprnd0 = gimple_call_arg (abd_stmt, 0); + tree abd_oprnd1 = gimple_call_arg (abd_stmt, 1); - /* We then detect if the operand of abs_expr is defined by a minus_expr. */ - stmt_vec_info diff_stmt_vinfo = vect_get_internal_def (vinfo, abs_oprnd); - if (!diff_stmt_vinfo) + if (!vect_look_through_possible_promotion (vinfo, abd_oprnd0, &unprom[0]) + || !vect_look_through_possible_promotion (vinfo, abd_oprnd1, + &unprom[1])) + return NULL; + + half_type = unprom[0].type; + } + else if (!vect_recog_absolute_difference (vinfo, abs_stmt, &half_type, + unprom, NULL)) return NULL; - /* FORNOW. Can continue analyzing the def-use chain when this stmt in a phi - inside the loop (in case we are analyzing an outer-loop). */ - vect_unpromoted_value unprom[2]; - if (!vect_widened_op_tree (vinfo, diff_stmt_vinfo, MINUS_EXPR, WIDEN_MINUS_EXPR, - false, 2, unprom, &half_type)) + if (!half_type) return NULL; vect_pattern_detected ("vect_recog_sad_pattern", last_stmt); @@ -1363,6 +1434,122 @@ vect_recog_sad_pattern (vec_info *vinfo, return pattern_stmt; } +/* Function vect_recog_abd_pattern + + Try to find the following ABsolute Difference (ABD) pattern: + + VTYPE x, y, out; + type diff; + loop i in range: + S1 diff = x[i] - y[i] + S2 out[i] = ABS_EXPR ; + + where 'type' is a integer and 'VTYPE' is a vector of integers + the same size as 'type' + + Input: + + * STMT_VINFO: The stmt from which the pattern search begins + + Output: + + * TYPE_out: The type of the output of this pattern + + * Return value: A new stmt that will be used to replace the sequence of + stmts that constitute the pattern; either SABD or UABD: + SABD_EXPR + UABD_EXPR + */ + +static gimple * +vect_recog_abd_pattern (vec_info *vinfo, + stmt_vec_info stmt_vinfo, tree *type_out) +{ + /* Look for the following patterns + X = x[i] + Y = y[i] + DIFF = X - Y + DAD = ABS_EXPR + out[i] = DAD + + In which + - X, Y, DIFF, DAD all have the same type + - x, y, out are all vectors of the same type + */ + + gassign *last_stmt = dyn_cast (STMT_VINFO_STMT (stmt_vinfo)); + if (!last_stmt) + return NULL; + + tree out_type = TREE_TYPE (gimple_assign_lhs (last_stmt)); + + vect_unpromoted_value unprom[2]; + gassign *diff_stmt; + tree half_type; + if (!vect_recog_absolute_difference (vinfo, last_stmt, &half_type, + unprom, &diff_stmt)) + return NULL; + +#define SAME_TYPE(A, B) (TYPE_PRECISION (A) == TYPE_PRECISION (B)) + + tree abd_type = out_type, vectype; + tree abd_oprnds[2]; + bool extend = false; + if (half_type) + { + vectype = get_vectype_for_scalar_type (vinfo, half_type); + if (!vectype) + return NULL; + + abd_type = half_type; + vect_convert_inputs (vinfo, stmt_vinfo, 2, abd_oprnds, + half_type, unprom, vectype); + + extend = TYPE_PRECISION (abd_type) < TYPE_PRECISION (out_type); + } + else + { + unprom[0].op = gimple_assign_rhs1 (diff_stmt); + unprom[1].op = gimple_assign_rhs2 (diff_stmt); + tree signed_out = signed_type_for (out_type); + vectype = get_vectype_for_scalar_type (vinfo, signed_out); + if (!vectype) + return NULL; + + vect_convert_inputs (vinfo, stmt_vinfo, 2, abd_oprnds, + signed_out, unprom, vectype); + } + + vect_pattern_detected ("vect_recog_abd_pattern", last_stmt); + + if (!vectype + || !direct_internal_fn_supported_p (IFN_ABD, vectype, + OPTIMIZE_FOR_SPEED)) + return NULL; + + *type_out = get_vectype_for_scalar_type (vinfo, out_type); + + tree abd_result = vect_recog_temp_ssa_var (abd_type, NULL); + gcall *abd_stmt = gimple_build_call_internal (IFN_ABD, 2, + abd_oprnds[0], abd_oprnds[1]); + gimple_call_set_lhs (abd_stmt, abd_result); + gimple_set_location (abd_stmt, gimple_location (last_stmt)); + + if (!extend) + return abd_stmt; + + gimple *stmt = abd_stmt; + if (!TYPE_UNSIGNED (abd_type)) + { + tree unsign = unsigned_type_for (abd_type); + tree unsign_vectype = get_vectype_for_scalar_type (vinfo, unsign); + stmt = vect_convert_output (vinfo, stmt_vinfo, unsign, stmt, + unsign_vectype); + } + + return vect_convert_output (vinfo, stmt_vinfo, out_type, stmt, vectype); +} + /* Recognize an operation that performs ORIG_CODE on widened inputs, so that it can be treated as though it had the form: @@ -6439,6 +6626,7 @@ struct vect_recog_func static vect_recog_func vect_vect_recog_func_ptrs[] = { { vect_recog_bitfield_ref_pattern, "bitfield_ref" }, { vect_recog_bit_insert_pattern, "bit_insert" }, + { vect_recog_abd_pattern, "abd" }, { vect_recog_over_widening_pattern, "over_widening" }, /* Must come after over_widening, which narrows the shift as much as possible beforehand. */