From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1666) id 893583857352; Thu, 2 Nov 2023 13:59:25 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 893583857352 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1698933565; bh=FVuaYmpPjp6Gy33aTeklH777JvZ7+f3LscWFbMnBFyQ=; h=From:To:Subject:Date:From; b=if4YqaJbSA41gp4Zbx72Rn/m8AJbWlNI1vFRH37iRVDAddgZHq77PKA5DeSc28m1/ 8c1O3vqYLxaZMFfAJEfso0ZDUnfAU3a8158Hg66Ac7lsg8Mf04M9cL/AyGnczLTqai ftN/Q0RTuj5/I6YTFMlj0SJel8+6TPKUEQ6CCU34= Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Richard Biener To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/users/rguenth/heads/vect-force-slp)] Guard SLP optimize latch edge discovery X-Act-Checkin: gcc X-Git-Author: Richard Biener X-Git-Refname: refs/users/rguenth/heads/vect-force-slp X-Git-Oldrev: 125dfb199c5603a807cd26fc31a1d4047efb0e47 X-Git-Newrev: e34ba8d693265de0cfdca71e04e4becc5756afbc Message-Id: <20231102135925.893583857352@sourceware.org> Date: Thu, 2 Nov 2023 13:59:25 +0000 (GMT) List-Id: https://gcc.gnu.org/g:e34ba8d693265de0cfdca71e04e4becc5756afbc commit e34ba8d693265de0cfdca71e04e4becc5756afbc Author: Richard Biener Date: Fri Sep 29 12:57:59 2023 +0200 Guard SLP optimize latch edge discovery When inserting additional VEC_PERM nodes it seems we can run is_cfg_latch_edge but given there's eventually no representative we should avoid ICEing on it. * tree-vect-slp.cc (vect_optimize_slp_pass::is_cfg_latch_edge): VER_PERM node use is never the destination of a latch. Diff: --- gcc/tree-vect-slp.cc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc index c11b58107a3d..473d606a3359 100644 --- a/gcc/tree-vect-slp.cc +++ b/gcc/tree-vect-slp.cc @@ -4306,7 +4306,8 @@ vect_optimize_slp_pass::is_cfg_latch_edge (graph_edge *ud) slp_tree use = m_vertices[ud->src].node; slp_tree def = m_vertices[ud->dest].node; if (SLP_TREE_DEF_TYPE (use) != vect_internal_def - || SLP_TREE_DEF_TYPE (def) != vect_internal_def) + || SLP_TREE_DEF_TYPE (def) != vect_internal_def + || SLP_TREE_CODE (use) == VEC_PERM_EXPR) return false; stmt_vec_info use_rep = vect_orig_stmt (SLP_TREE_REPRESENTATIVE (use));