From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2136) id 1C5F5385BAF5; Sat, 9 Jul 2022 19:09:30 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1C5F5385BAF5 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Aldy Hernandez To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-1589] Set VR_VARYING in irange::irange_single_pair_union. X-Act-Checkin: gcc X-Git-Author: Aldy Hernandez X-Git-Refname: refs/heads/master X-Git-Oldrev: 7a16d39903ed1bf159f7933a19ccae62155b371b X-Git-Newrev: 030a53c613031d11e11fb7b1b08aec1a736da067 Message-Id: <20220709190930.1C5F5385BAF5@sourceware.org> Date: Sat, 9 Jul 2022 19:09:30 +0000 (GMT) X-BeenThere: gcc-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 09 Jul 2022 19:09:30 -0000 https://gcc.gnu.org/g:030a53c613031d11e11fb7b1b08aec1a736da067 commit r13-1589-g030a53c613031d11e11fb7b1b08aec1a736da067 Author: Aldy Hernandez Date: Sat Jul 9 17:43:44 2022 +0200 Set VR_VARYING in irange::irange_single_pair_union. The fast union operation is sometimes setting a range of the entire domain, but leaving the kind bit as VR_RANGE instead of downgrading it to VR_VARYING. Tested on x86-64 Linux. gcc/ChangeLog: * value-range.cc (irange::irange_single_pair_union): Set VR_VARYING when appropriate. Diff: --- gcc/value-range.cc | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/gcc/value-range.cc b/gcc/value-range.cc index 25f1acff4a3..fd549b9ca59 100644 --- a/gcc/value-range.cc +++ b/gcc/value-range.cc @@ -1777,11 +1777,7 @@ irange::irange_single_pair_union (const irange &r) // Check for overlap/touching ranges, or single target range. if (m_max_ranges == 1 || wi::to_widest (m_base[1]) + 1 >= wi::to_widest (r.m_base[0])) - { - m_base[1] = r.m_base[1]; - if (varying_compatible_p ()) - m_kind = VR_VARYING; - } + m_base[1] = r.m_base[1]; else { // This is a dual range result. @@ -1789,8 +1785,8 @@ irange::irange_single_pair_union (const irange &r) m_base[3] = r.m_base[1]; m_num_ranges = 2; } - if (flag_checking) - verify_range (); + if (varying_compatible_p ()) + m_kind = VR_VARYING; return true; } @@ -1817,8 +1813,8 @@ irange::irange_single_pair_union (const irange &r) m_base[3] = m_base[1]; m_base[1] = r.m_base[1]; } - if (flag_checking) - verify_range (); + if (varying_compatible_p ()) + m_kind = VR_VARYING; return true; } @@ -1857,6 +1853,8 @@ irange::irange_union (const irange &r) { bool ret = irange_single_pair_union (r); set_nonzero_bits (saved_nz); + if (flag_checking) + verify_range (); return ret || ret_nz; }