From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1666) id BC99D385843E; Thu, 19 Oct 2023 13:29:01 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org BC99D385843E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1697722141; bh=agv1r3sXxu6KviP0mzNNaGJm5QG7dOIrPy4in10stlY=; h=From:To:Subject:Date:From; b=j7TTdn6bNpVcK23LPdg0lSyGkJAH0sFtWi857bRtaoqDw3WqxgnI77JlGO35CiW+o 3MH9k2NjU+lbDkYZZ3TdJmIGBCDY1rKW63ToaYlzBMzBqNCvwlIKthetN8ePKV9PG/ X/XaR33y6queYgS/FdHbUYQ96FxtkOcMnPvEs2BQ= 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)] Allow bigger SLP graphs X-Act-Checkin: gcc X-Git-Author: Richard Biener X-Git-Refname: refs/users/rguenth/heads/vect-force-slp X-Git-Oldrev: b348c0c3fd7edaa70e09eef193105165f7313e1b X-Git-Newrev: 46e34eee40aea108f3db710382545895834f0000 Message-Id: <20231019132901.BC99D385843E@sourceware.org> Date: Thu, 19 Oct 2023 13:29:01 +0000 (GMT) List-Id: https://gcc.gnu.org/g:46e34eee40aea108f3db710382545895834f0000 commit 46e34eee40aea108f3db710382545895834f0000 Author: Richard Biener Date: Fri Sep 29 13:05:01 2023 +0200 Allow bigger SLP graphs When doing single-lane SLP discovery only we're easily running into the SLP graph size limit when patterns are involved. The following ups the limit from the number of scalar stmts to the number of scalar or pattern stmts by using the number of stmt_vec_infos created. * tree-vect-loop.cc (vect_analyze_loop_2): Use the number of stmt_vec_infos created to limit the SLP graph size. Diff: --- gcc/tree-vect-loop.cc | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc index 8877ebde2466..0de43168460a 100644 --- a/gcc/tree-vect-loop.cc +++ b/gcc/tree-vect-loop.cc @@ -2813,8 +2813,10 @@ vect_analyze_loop_2 (loop_vec_info loop_vinfo, bool &fatal, if (slp) { /* Check the SLP opportunities in the loop, analyze and build - SLP trees. */ - ok = vect_analyze_slp (loop_vinfo, LOOP_VINFO_N_STMTS (loop_vinfo)); + SLP trees. Use the number of stmt_vec_infos as graph limit + since that also includes pattern stmts which LOOP_VINFO_N_STMTS + does not. */ + ok = vect_analyze_slp (loop_vinfo, loop_vinfo->stmt_vec_infos.length ()); if (!ok) return ok;