From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 1BC3A3856961 for ; Wed, 17 May 2023 14:10:57 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 1BC3A3856961 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1684332656; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=XT7Sf3u9mKalPXdU9l3EQCyjqqx8W64W8U2cRX7auEY=; b=PHZeRO/FpgA41zh5dUf+gKNrhfqy2IY9IndCliynsckJiAt9UsCsrFM8pEX/lTOs+wZRVZ /2lILvfd7wMAsol8e3rHXEdW4s1k7eYYh0Xkv9tw4Iw9yAXpX4ZmM6uMJUeYw7AcMc/Kl5 AAgY41vZCr0FKSDCbL2NxCOklGhWTVA= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [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-390-f4VRdV9vNMOMvG_-c44_cg-1; Wed, 17 May 2023 10:10:54 -0400 X-MC-Unique: f4VRdV9vNMOMvG_-c44_cg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id E19141C27D96 for ; Wed, 17 May 2023 14:10:27 +0000 (UTC) Received: from abulafia.quesejoda.com (unknown [10.39.194.72]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 89E3B40C206F; Wed, 17 May 2023 14:10:27 +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 34HEAP8e464124 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Wed, 17 May 2023 16:10:25 +0200 Received: (from aldyh@localhost) by abulafia.quesejoda.com (8.17.1/8.17.1/Submit) id 34HEAPak464123; Wed, 17 May 2023 16:10:25 +0200 From: Aldy Hernandez To: GCC patches Cc: Andrew MacLeod , Aldy Hernandez Subject: [COMMITTED] Provide support for copying unsupported ranges. Date: Wed, 17 May 2023 16:10:19 +0200 Message-Id: <20230517141020.464106-1-aldyh@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true 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_H2,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 List-Id: The unsupported_range class is provided for completness sake. It is a way to set VARYING/UNDEFINED ranges for unsupported ranges (currently anything not float, integer, or pointer). You can't do anything with them, except set_varying, and set_undefined. We will trap on any other operation. This patch provides a way to copy them, just in case they creep in. This could happen in IPA under certain circumstances. gcc/ChangeLog: * value-range.cc (vrange::operator=): Add a stub to copy unsupported ranges. * value-range.h (is_a ): New. (Value_Range::operator=): Support copying unsupported ranges. --- gcc/value-range.cc | 5 ++++- gcc/value-range.h | 12 ++++++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/gcc/value-range.cc b/gcc/value-range.cc index 93c44a68365..45b1e655967 100644 --- a/gcc/value-range.cc +++ b/gcc/value-range.cc @@ -203,7 +203,10 @@ vrange::operator= (const vrange &src) else if (is_a (src)) as_a (*this) = as_a (src); else - gcc_unreachable (); + { + gcc_checking_assert (is_a (src)); + m_kind = src.m_kind; + } return *this; } diff --git a/gcc/value-range.h b/gcc/value-range.h index 0da2a42764a..ab982d18402 100644 --- a/gcc/value-range.h +++ b/gcc/value-range.h @@ -460,6 +460,13 @@ is_a (vrange &v) return v.m_discriminator == VR_FRANGE; } +template <> +inline bool +is_a (vrange &v) +{ + return v.m_discriminator == VR_UNKNOWN; +} + // For resizable ranges, resize the range up to HARD_MAX_RANGES if the // NEEDED pairs is greater than the current capacity of the range. @@ -624,6 +631,11 @@ Value_Range::operator= (const vrange &r) m_frange = as_a (r); m_vrange = &m_frange; } + else if (is_a (r)) + { + m_unsupported = as_a (r); + m_vrange = &m_unsupported; + } else gcc_unreachable (); -- 2.40.0