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 BE5D03858032 for ; Mon, 26 Sep 2022 10:36:50 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org BE5D03858032 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=1664188610; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:resent-to:resent-from:resent-message-id; bh=A4W9RLfPOdK2yaaCl1Wy0bvCGbUADcKUW5YJ1RDwoCQ=; b=iBmaZHFsssNLIrJNT+uFl/w3ZSVvdiU/yv+JlI80K9ombE5xJ5SChZYIlyK/6iZK/O+xkp cUM3nnVOxNJTsVcr7AYw0ZdCXo8JDLxlXYH4sr7GO+eDA+UYI0L91t3db4PJXg7Bvz0ems 14QTuv07l4CckzgF37LTtTwZICHakjM= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-228-YMukfMywNYWqwCY79gIeDA-1; Mon, 26 Sep 2022 06:36:47 -0400 X-MC-Unique: YMukfMywNYWqwCY79gIeDA-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 08D04101A52A; Mon, 26 Sep 2022 10:36:47 +0000 (UTC) Received: from tucnak.zalov.cz (unknown [10.39.192.194]) by smtp.corp.redhat.com (Postfix) with ESMTPS id BC9521121314; Mon, 26 Sep 2022 10:36:46 +0000 (UTC) Received: from tucnak.zalov.cz (localhost [127.0.0.1]) by tucnak.zalov.cz (8.17.1/8.17.1) with ESMTPS id 28QAaias3964141 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 26 Sep 2022 12:36:44 +0200 Received: (from jakub@localhost) by tucnak.zalov.cz (8.17.1/8.17.1/Submit) id 28QAahnA3964140; Mon, 26 Sep 2022 12:36:43 +0200 Resent-From: Jakub Jelinek Resent-Date: Mon, 26 Sep 2022 12:36:43 +0200 Resent-Message-ID: Resent-To: Richard Biener , gcc-patches@gcc.gnu.org Date: Mon, 26 Sep 2022 10:30:44 +0200 From: Jakub Jelinek To: Richard Biener Cc: gcc-patches@gcc.gnu.org Subject: [PATCH] reassoc: Handle OFFSET_TYPE like POINTER_TYPE in optimize_range_tests_cmp_bitwise [PR107029[ Message-ID: Reply-To: Jakub Jelinek 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-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spam-Status: No, score=-3.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,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 List-Id: Hi! As the testcase shows, OFFSET_TYPE needs the same treatment as POINTER_TYPE/REFERENCE_TYPE, otherwise we fail the same during the newly added verification. OFFSET_TYPE is signed though, so unlike POINTER_TYPE/REFERENCE_TYPE it can also trigger with the x < 0 && y < 0 && z < 0 to (x | y | z) < 0 optimization. Fixed thusly, bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk? 2022-09-26 Jakub Jelinek PR tree-optimization/107029 * tree-ssa-reassoc.cc (optimize_range_tests_cmp_bitwise): Treat OFFSET_TYPE like POINTER_TYPE, except that OFFSET_TYPE may be signed and so can trigger even the (b % 4) == 3 case. * g++.dg/torture/pr107029.C: New test. --- gcc/tree-ssa-reassoc.cc.jj 2022-09-17 08:18:16.935880254 +0200 +++ gcc/tree-ssa-reassoc.cc 2022-09-25 14:46:21.746367580 +0200 @@ -3608,13 +3608,13 @@ optimize_range_tests_cmp_bitwise (enum t tree type2 = NULL_TREE; bool strict_overflow_p = false; candidates.truncate (0); - if (POINTER_TYPE_P (type1)) + if (POINTER_TYPE_P (type1) || TREE_CODE (type1) == OFFSET_TYPE) type1 = pointer_sized_int_node; for (j = i; j; j = chains[j - 1]) { tree type = TREE_TYPE (ranges[j - 1].exp); strict_overflow_p |= ranges[j - 1].strict_overflow_p; - if (POINTER_TYPE_P (type)) + if (POINTER_TYPE_P (type) || TREE_CODE (type) == OFFSET_TYPE) type = pointer_sized_int_node; if ((b % 4) == 3) { @@ -3646,7 +3646,7 @@ optimize_range_tests_cmp_bitwise (enum t tree type = TREE_TYPE (ranges[j - 1].exp); if (j == k) continue; - if (POINTER_TYPE_P (type)) + if (POINTER_TYPE_P (type) || TREE_CODE (type) == OFFSET_TYPE) type = pointer_sized_int_node; if ((b % 4) == 3) { @@ -3677,10 +3677,20 @@ optimize_range_tests_cmp_bitwise (enum t op = r->exp; continue; } - if (id == l || POINTER_TYPE_P (TREE_TYPE (op))) + if (id == l + || POINTER_TYPE_P (TREE_TYPE (op)) + || TREE_CODE (TREE_TYPE (op)) == OFFSET_TYPE) { code = (b % 4) == 3 ? BIT_NOT_EXPR : NOP_EXPR; tree type3 = id >= l ? type1 : pointer_sized_int_node; + if (code == BIT_NOT_EXPR + && TREE_CODE (TREE_TYPE (op)) == OFFSET_TYPE) + { + g = gimple_build_assign (make_ssa_name (type3), + NOP_EXPR, op); + gimple_seq_add_stmt_without_update (&seq, g); + op = gimple_assign_lhs (g); + } g = gimple_build_assign (make_ssa_name (type3), code, op); gimple_seq_add_stmt_without_update (&seq, g); op = gimple_assign_lhs (g); @@ -3688,6 +3698,7 @@ optimize_range_tests_cmp_bitwise (enum t tree type = TREE_TYPE (r->exp); tree exp = r->exp; if (POINTER_TYPE_P (type) + || TREE_CODE (type) == OFFSET_TYPE || (id >= l && !useless_type_conversion_p (type1, type))) { tree type3 = id >= l ? type1 : pointer_sized_int_node; @@ -3705,7 +3716,7 @@ optimize_range_tests_cmp_bitwise (enum t op = gimple_assign_lhs (g); } type1 = TREE_TYPE (ranges[k - 1].exp); - if (POINTER_TYPE_P (type1)) + if (POINTER_TYPE_P (type1) || TREE_CODE (type1) == OFFSET_TYPE) { gimple *g = gimple_build_assign (make_ssa_name (type1), NOP_EXPR, op); --- gcc/testsuite/g++.dg/torture/pr107029.C.jj 2022-09-25 14:49:18.427954682 +0200 +++ gcc/testsuite/g++.dg/torture/pr107029.C 2022-09-25 14:49:00.654197418 +0200 @@ -0,0 +1,19 @@ +// PR tree-optimization/107029 +// { dg-do compile } + +struct S { long long a; int b; }; +long long S::*a; +int S::*b; +struct A { void foo (bool, bool); void bar (); int c; }; + +void +A::foo (bool a, bool b) +{ + c = a || b; +} + +void +A::bar() +{ + foo (a, b); +} Jakub