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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/109008] [13 Regression] Wrong code in scipy package since r13-3926-gd4c2f1d376da6f Date: Fri, 03 Mar 2023 12:24:41 +0000 [thread overview] Message-ID: <bug-109008-4-3F7JM638vp@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-109008-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109008 --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- So with [1., 1.] = [1., 1.] + op2 we are calculating op2 = [1., 1.] - [1., 1.] but with FP math we cannot apply such simplification without considering rounding or exponent ranges. Maybe it's enough to "fuzz" the results by half an ulp of both(?) input ranges ...
next prev parent reply other threads:[~2023-03-03 12:24 UTC|newest] Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-03-03 12:08 [Bug tree-optimization/109008] New: [13 Regression ]Maybe wrong " marxin at gcc dot gnu.org 2023-03-03 12:11 ` [Bug tree-optimization/109008] [13 Regression] Maybe " rguenth at gcc dot gnu.org 2023-03-03 12:14 ` rguenth at gcc dot gnu.org 2023-03-03 12:18 ` [Bug tree-optimization/109008] [13 Regression] Wrong " rguenth at gcc dot gnu.org 2023-03-03 12:24 ` rguenth at gcc dot gnu.org [this message] 2023-03-03 12:27 ` rguenth at gcc dot gnu.org 2023-03-03 12:31 ` jakub at gcc dot gnu.org 2023-03-03 12:54 ` jakub at gcc dot gnu.org 2023-03-03 13:03 ` rguenth at gcc dot gnu.org 2023-03-03 13:10 ` rguenth at gcc dot gnu.org 2023-03-03 13:14 ` rguenth at gcc dot gnu.org 2023-03-03 13:34 ` jakub at gcc dot gnu.org 2023-03-03 13:50 ` rguenth at gcc dot gnu.org 2023-03-03 14:28 ` jakub at gcc dot gnu.org 2023-03-07 12:06 ` rguenth at gcc dot gnu.org 2023-03-07 12:12 ` jakub at gcc dot gnu.org 2023-03-07 12:20 ` jakub at gcc dot gnu.org 2023-03-07 12:23 ` rguenth at gcc dot gnu.org 2023-03-07 12:25 ` rguenth at gcc dot gnu.org 2023-03-07 13:16 ` jakub at gcc dot gnu.org 2023-03-07 13:18 ` rguenth at gcc dot gnu.org 2023-03-07 13:29 ` rguenth at gcc dot gnu.org 2023-03-07 13:58 ` rguenth at gcc dot gnu.org 2023-03-07 14:10 ` rguenth at gcc dot gnu.org 2023-03-07 18:52 ` jakub at gcc dot gnu.org 2023-03-07 19:39 ` jakub at gcc dot gnu.org 2023-03-07 20:49 ` jakub at gcc dot gnu.org 2023-03-08 9:26 ` aldyh at gcc dot gnu.org 2023-03-08 9:29 ` aldyh at gcc dot gnu.org 2023-03-08 9:36 ` jakub at gcc dot gnu.org 2023-03-08 10:09 ` aldyh at gcc dot gnu.org 2023-03-08 11:29 ` jakub at gcc dot gnu.org 2023-03-08 11:30 ` jakub at gcc dot gnu.org 2023-03-08 14:51 ` jakub at gcc dot gnu.org 2023-03-08 14:52 ` jakub at gcc dot gnu.org 2023-03-08 15:07 ` jakub at gcc dot gnu.org 2023-03-08 15:54 ` jakub at gcc dot gnu.org 2023-03-08 16:37 ` jakub at gcc dot gnu.org 2023-03-08 18:56 ` jakub at gcc dot gnu.org 2023-03-08 20:02 ` jakub at gcc dot gnu.org 2023-03-09 8:52 ` cvs-commit at gcc dot gnu.org 2023-03-09 10:24 ` rguenth at gcc dot gnu.org 2023-03-09 11:06 ` jakub at gcc dot gnu.org 2023-03-09 11:12 ` marxin at gcc dot gnu.org 2023-03-09 11:50 ` jakub at gcc dot gnu.org 2023-03-09 12:34 ` rguenth at gcc dot gnu.org 2023-03-09 12:56 ` jakub at gcc dot gnu.org 2023-03-09 13:03 ` jakub at gcc dot gnu.org 2023-03-09 13:25 ` jakub at gcc dot gnu.org 2023-03-10 9:08 ` cvs-commit at gcc dot gnu.org 2023-03-10 11:41 ` cvs-commit at gcc dot gnu.org 2023-03-22 9:07 ` cvs-commit at gcc dot gnu.org
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