From patchwork Tue Oct 26 03:40:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kewen.Lin" X-Patchwork-Id: 46648 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 4E6CA3857830 for ; Tue, 26 Oct 2021 03:40:42 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 4E6CA3857830 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1635219642; bh=fi3bSgOA1VVAgTbdNVracil+cSB7kXLqi8r6q1DG6/I=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=C0uwZPk/Ud59/329MuE/AMYFFP1oa43tKSsbPP63pvy6xzf1Xz5lUhXB8SqvYXIxB gbh8G3rKNuUPDiF44qbXtAzqmBT4Xp0FqdJroNHvCnXKLDb9Jrj+M44zeUj+KKJqG7 2k9XdPFXhfD4dGdjRyTyqofLYhwnbB73O1wZJ0Vk= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by sourceware.org (Postfix) with ESMTPS id 6EB013857C50 for ; 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Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 Content-Language: en-US X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: eia2e1YezUf-4OoX4HhUSEfwPQ40ir6D X-Proofpoint-GUID: 4GApBSZXTUMMmTttCCY5hoL65Od92Yzj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-10-25_08,2021-10-25_02,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 impostorscore=0 clxscore=1015 suspectscore=0 adultscore=0 priorityscore=1501 bulkscore=0 mlxlogscore=999 lowpriorityscore=0 malwarescore=0 phishscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2110260016 X-Spam-Status: No, score=-11.7 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) 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: "Kewen.Lin via Gcc-patches" From: "Kewen.Lin" Reply-To: "Kewen.Lin" Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" Hi, As PR102897 shows, there is one incorrect assertion in function simplify_permutation, which is based on the wrong assumption that all cases with op2_type == tgt_type are handled previously, the proposed fix is to remove this wrong assertion. Bootstrapped and regtested on x86_64-redhat-linux, aarch64-linux-gnu and powerpc64{,le}-linux-gnu. BR, Kewen ----- gcc/ChangeLog: PR tree-optimization/102897 * tree-ssa-forwprop.c (simplify_permutation): Remove a wrong assertion. gcc/testsuite/ChangeLog: * gcc.dg/pr102897.c: New test. --- gcc/testsuite/gcc.dg/pr102897.c | 16 ++++++++++++++++ gcc/tree-ssa-forwprop.c | 2 -- 2 files changed, 16 insertions(+), 2 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/pr102897.c -- 2.27.0 diff --git a/gcc/testsuite/gcc.dg/pr102897.c b/gcc/testsuite/gcc.dg/pr102897.c new file mode 100644 index 00000000000..d96b0e48ccc --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr102897.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ +/* Specify C99 to avoid the warning/error on compound literals. */ +/* { dg-options "-std=c99" } */ + +/* Verify that there is no ICE. */ + +typedef __attribute__((vector_size(8))) signed char int8x8_t; +typedef __attribute__((vector_size(8))) unsigned char uint8x8_t; + +int8x8_t fn1 (int8x8_t val20, char tmp) +{ + uint8x8_t __trans_tmp_3; + __trans_tmp_3 = (uint8x8_t){tmp}; + int8x8_t __a = (int8x8_t) __trans_tmp_3; + return __builtin_shuffle (__a, val20, (uint8x8_t){0}); +} diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c index 5b30d4c1a76..a830bab78ba 100644 --- a/gcc/tree-ssa-forwprop.c +++ b/gcc/tree-ssa-forwprop.c @@ -2267,8 +2267,6 @@ simplify_permutation (gimple_stmt_iterator *gsi) if (!VECTOR_TYPE_P (tgt_type)) return 0; tree op2_type = TREE_TYPE (op2); - /* Should have folded this before. */ - gcc_assert (op2_type != tgt_type); /* Figure out the shrunk factor. */ poly_uint64 tgt_units = TYPE_VECTOR_SUBPARTS (tgt_type);