From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1666) id 3EE06383469E; Fri, 22 Jul 2022 11:21:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3EE06383469E MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Richard Biener To: gcc-cvs@gcc.gnu.org Subject: [gcc r11-10168] middle-end/103193 - avoid canonicalizing <= and >= to == for floats X-Act-Checkin: gcc X-Git-Author: Richard Biener X-Git-Refname: refs/heads/releases/gcc-11 X-Git-Oldrev: ff408622a5f8fb395e5584a494aaaad05b3611db X-Git-Newrev: e2b97d6883a72b0c51dd0455acea43e21b5537d9 Message-Id: <20220722112153.3EE06383469E@sourceware.org> Date: Fri, 22 Jul 2022 11:21:53 +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: Fri, 22 Jul 2022 11:21:53 -0000 https://gcc.gnu.org/g:e2b97d6883a72b0c51dd0455acea43e21b5537d9 commit r11-10168-ge2b97d6883a72b0c51dd0455acea43e21b5537d9 Author: Richard Biener Date: Mon Nov 15 12:13:40 2021 +0100 middle-end/103193 - avoid canonicalizing <= and >= to == for floats This avoids doing aforementioned canoncalization when -ftrapping-math is in effect and we honor NaNs. 2021-11-15 Richard Biener PR middle-end/103193 * match.pd: Avoid canonicalizing (le/ge @0 @0) to (eq @0 @0) with NaNs and -ftrapping-math. (cherry picked from commit d9ca2ca381e44a332703155d07b50b84aa21f80d) Diff: --- gcc/match.pd | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/gcc/match.pd b/gcc/match.pd index e89601c0c14..8126f90ee75 100644 --- a/gcc/match.pd +++ b/gcc/match.pd @@ -4114,7 +4114,10 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT) (if (! FLOAT_TYPE_P (TREE_TYPE (@0)) || ! HONOR_NANS (@0)) { constant_boolean_node (true, type); } - (if (cmp != EQ_EXPR) + (if (cmp != EQ_EXPR + /* With -ftrapping-math conversion to EQ loses an exception. */ + && (! FLOAT_TYPE_P (TREE_TYPE (@0)) + || ! flag_trapping_math)) (eq @0 @0))))) (for cmp (ne gt lt) (simplify