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 [170.10.129.124]) by sourceware.org (Postfix) with ESMTPS id 6C5503858C60 for ; Wed, 26 Apr 2023 11:48:00 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 6C5503858C60 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=1682509680; 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: in-reply-to:in-reply-to:references:references; bh=fv3NN8kfbajSJGpjshnjIahE0CghCHwcSg7thsE6VkY=; b=IbAjz+rnLnnZG2mCh4neXwSjhuq9cFzE5WDGcPEk8ihhVmejXSeCaTONfVMy3M576+RSgI wy8f69HlXK7b/6VADrgXpxD048sLg2PN4iIbFZLtbY+6bGR35TKjOqCqrVLWOUH5g7UEaM 8kZlSr7zq3QyFOhrmwt1pwhr+kOA7I8= 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-617-0Z0cIZcJNdCSdkssaRh2Ew-1; Wed, 26 Apr 2023 07:47:59 -0400 X-MC-Unique: 0Z0cIZcJNdCSdkssaRh2Ew-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A3DF038123AB for ; Wed, 26 Apr 2023 11:47:58 +0000 (UTC) Received: from abulafia.quesejoda.com (unknown [10.39.195.54]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 2B0DE1121314; Wed, 26 Apr 2023 11:47:58 +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 33QBlu3S336966 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Wed, 26 Apr 2023 13:47:56 +0200 Received: (from aldyh@localhost) by abulafia.quesejoda.com (8.17.1/8.17.1/Submit) id 33QBluI8336965; Wed, 26 Apr 2023 13:47:56 +0200 From: Aldy Hernandez To: GCC patches Cc: Andrew MacLeod , Aldy Hernandez Subject: [COMMITTED] Convert compare_nonzero_chars to wide_ints. Date: Wed, 26 Apr 2023 13:47:49 +0200 Message-Id: <20230426114752.336928-4-aldyh@redhat.com> In-Reply-To: <20230426114752.336928-1-aldyh@redhat.com> References: <20230426114752.336928-1-aldyh@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 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: gcc/ChangeLog: * tree-ssa-strlen.cc (compare_nonzero_chars): Convert to wide_ints. --- gcc/tree-ssa-strlen.cc | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/gcc/tree-ssa-strlen.cc b/gcc/tree-ssa-strlen.cc index 0bbcb04834f..de785281b27 100644 --- a/gcc/tree-ssa-strlen.cc +++ b/gcc/tree-ssa-strlen.cc @@ -359,10 +359,10 @@ compare_nonzero_chars (strinfo *si, gimple *stmt, of the length range are equal return the result of the comparison same as in the constant case. Otherwise return a conservative result. */ - tree lower = wide_int_to_tree (vr.type (), vr.lower_bound ()); - tree upper = wide_int_to_tree (vr.type (), vr.upper_bound ()); - int cmpmin = compare_tree_int (lower, off); - if (cmpmin > 0 || tree_int_cst_equal (lower, upper)) + signop sign = TYPE_SIGN (vr.type ()); + unsigned prec = TYPE_PRECISION (vr.type ()); + int cmpmin = wi::cmp (vr.lower_bound (), wi::uhwi (off, prec), sign); + if (cmpmin > 0 || vr.singleton_p ()) return cmpmin; return -1; -- 2.40.0