From patchwork Fri Oct 14 14:26:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aldy Hernandez X-Patchwork-Id: 1690052 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=PWQlbHzc; 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 4Mppcp0N1vz23k1 for ; Sat, 15 Oct 2022 01:27:22 +1100 (AEDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 0E7D3385023D for ; Fri, 14 Oct 2022 14:27:20 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0E7D3385023D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1665757640; bh=1/XQHtA10jtkJqjhlASQ9818Y1+XDRwnpN6gkiVObi0=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=PWQlbHzc455PsfPKAzlYpLv1FSD1h+h5ZeLPqzoQDNiC1FgUoT2ezPzAL32kmD40E pjtKDlMlDr/xq5kDxdlCIPYZMY0+f4saK7QP/dAXK84kWVtIUZIFR2OudlaUBHTBf3 5gCI7hob++ckIDTgY+1fnGb4fNk0aLgFYPAhvC0o= 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 6B5E338582B7 for ; Fri, 14 Oct 2022 14:27:01 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 6B5E338582B7 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-594-sEy8cTLQOC6HuHjkPxpXQQ-1; Fri, 14 Oct 2022 10:26:59 -0400 X-MC-Unique: sEy8cTLQOC6HuHjkPxpXQQ-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A4D8F380673F for ; Fri, 14 Oct 2022 14:26:59 +0000 (UTC) Received: from abulafia.quesejoda.com (unknown [10.39.195.163]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5E36B416361; Fri, 14 Oct 2022 14:26:59 +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 29EEQvX9671512 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Fri, 14 Oct 2022 16:26:57 +0200 Received: (from aldyh@localhost) by abulafia.quesejoda.com (8.17.1/8.17.1/Submit) id 29EEQv2d671511; Fri, 14 Oct 2022 16:26:57 +0200 To: GCC patches Subject: [COMMITTED] Normalize ranges over the range for both bounds when -ffinite-math-only. Date: Fri, 14 Oct 2022 16:26:51 +0200 Message-Id: <20221014142652.671475-2-aldyh@redhat.com> In-Reply-To: <20221014142652.671475-1-aldyh@redhat.com> References: <20221014142652.671475-1-aldyh@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-12.0 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, SPF_HELO_NONE, SPF_NONE, 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 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" [-Inf, +Inf] was being chopped correctly for -ffinite-math-only, but [-Inf, -Inf] was not. This was latent because a bug in real_isdenormal is causing us to flush -Inf to zero. gcc/ChangeLog: * value-range.cc (frange::set): Normalize ranges for both bounds. --- gcc/value-range.cc | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/gcc/value-range.cc b/gcc/value-range.cc index 86550f158b8..6b4f3dddcd5 100644 --- a/gcc/value-range.cc +++ b/gcc/value-range.cc @@ -340,8 +340,12 @@ frange::set (tree type, REAL_VALUE_TYPE max_repr = frange_val_max (m_type); if (real_less (&m_min, &min_repr)) m_min = min_repr; + else if (real_less (&max_repr, &m_min)) + m_min = max_repr; if (real_less (&max_repr, &m_max)) m_max = max_repr; + else if (real_less (&m_max, &min_repr)) + m_max = min_repr; } // Check for swapped ranges.