From patchwork Mon Jul 17 07:16:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aldy Hernandez X-Patchwork-Id: 1808572 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=8.43.85.97; helo=server2.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=Kj8XxI7q; dkim-atps=neutral Received: from server2.sourceware.org (ip-8-43-85-97.sourceware.org [8.43.85.97]) (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 4R4D2D0Dm3z20FM for ; Mon, 17 Jul 2023 17:18:11 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 469193856DCE for ; Mon, 17 Jul 2023 07:18:09 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 469193856DCE DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1689578289; bh=3IbY5K4oRoT8oL1vTxF2Gt3HvjdL+fOuCI7KeuGkCH0=; 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=Kj8XxI7qOnKD0KNgJRFfru93PAF/AsHFbpViX8PzOVhHKR0LpgvkQUNj+Ef+ODHEP /64/ogFYh1SG1EJXkEHEz6SGaQg3ZTEpT7xwfuLxy8xJd2442MUQK7RIGIc67/+vIV VauDojS1m9fi78iXSXnkUhKpGoAOPvLdGyB1GD58= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 85B6A3858D28 for ; Mon, 17 Jul 2023 07:17:49 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 85B6A3858D28 Received: from mimecast-mx02.redhat.com (66.187.233.73 [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-346-ZiVvR68AOcO2iF6ncmr3BA-1; Mon, 17 Jul 2023 03:17:46 -0400 X-MC-Unique: ZiVvR68AOcO2iF6ncmr3BA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9F6A23803914 for ; Mon, 17 Jul 2023 07:17:46 +0000 (UTC) Received: from abulafia.quesejoda.com (unknown [10.39.193.153]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3AB6110E58; Mon, 17 Jul 2023 07:17:46 +0000 (UTC) Received: from abulafia.quesejoda.com (localhost [127.0.0.1]) by abulafia.quesejoda.com (8.17.1/8.17.1) with ESMTPS id 36H7HiHi242467 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 17 Jul 2023 09:17:44 +0200 Received: (from aldyh@localhost) by abulafia.quesejoda.com (8.17.1/8.17.1/Submit) id 36H7Hiim242466; Mon, 17 Jul 2023 09:17:44 +0200 To: GCC patches Cc: Andrew MacLeod , Aldy Hernandez Subject: [COMMITTED] Add global setter for value/mask pair for SSA names. Date: Mon, 17 Jul 2023 09:16:03 +0200 Message-Id: <20230717071603.242424-2-aldyh@redhat.com> In-Reply-To: <20230717071603.242424-1-aldyh@redhat.com> References: <20230717071603.242424-1-aldyh@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-11.7 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE 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: Aldy Hernandez via Gcc-patches From: Aldy Hernandez Reply-To: Aldy Hernandez Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" This patch provides a way to set the value/mask pair of known bits globally, similarly to how we can use set_nonzero_bits for known 0 bits. This can then be used by CCP and IPA to set value/mask info instead of throwing away the known 1 bits. In further clean-ups, I will see if it makes sense to remove set_nonzero_bits altogether, since it is subsumed by value/mask. gcc/ChangeLog: * tree-ssanames.cc (set_bitmask): New. * tree-ssanames.h (set_bitmask): New. --- gcc/tree-ssanames.cc | 15 +++++++++++++++ gcc/tree-ssanames.h | 1 + 2 files changed, 16 insertions(+) diff --git a/gcc/tree-ssanames.cc b/gcc/tree-ssanames.cc index 5fdb6a37e9f..f54394363a0 100644 --- a/gcc/tree-ssanames.cc +++ b/gcc/tree-ssanames.cc @@ -465,6 +465,21 @@ set_nonzero_bits (tree name, const wide_int &mask) set_range_info (name, r); } +/* Update the known bits of NAME. + + Zero bits in MASK cover constant values. Set bits in MASK cover + unknown values. VALUE are the known bits. */ + +void +set_bitmask (tree name, const wide_int &value, const wide_int &mask) +{ + gcc_assert (!POINTER_TYPE_P (TREE_TYPE (name))); + + int_range<2> r (TREE_TYPE (name)); + r.update_bitmask (irange_bitmask (value, mask)); + set_range_info (name, r); +} + /* Return a widest_int with potentially non-zero bits in SSA_NAME NAME, the constant for INTEGER_CST, or -1 if unknown. */ diff --git a/gcc/tree-ssanames.h b/gcc/tree-ssanames.h index f3fa609208a..b5e3f228ee8 100644 --- a/gcc/tree-ssanames.h +++ b/gcc/tree-ssanames.h @@ -59,6 +59,7 @@ struct GTY(()) ptr_info_def /* Sets the value range to SSA. */ extern bool set_range_info (tree, const vrange &); extern void set_nonzero_bits (tree, const wide_int &); +extern void set_bitmask (tree, const wide_int &value, const wide_int &mask); extern wide_int get_nonzero_bits (const_tree); extern bool ssa_name_has_boolean_range (tree); extern void init_ssanames (struct function *, int);