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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/100393] [9/10/11 Regression] Very slow compilation of switch statement with thousands of cases
Date: Fri, 05 Nov 2021 16:09:39 +0000 [thread overview]
Message-ID: <bug-100393-4-Oykw56Se1l@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-100393-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100393
--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Martin Liska
<marxin@gcc.gnu.org>:
https://gcc.gnu.org/g:95c7ef9fbcf2c4b760c296fae597f093b6ee9aaa
commit r11-9209-g95c7ef9fbcf2c4b760c296fae597f093b6ee9aaa
Author: Martin Liska <mliska@suse.cz>
Date: Fri Aug 13 17:22:35 2021 +0200
Speed up jump table switch detection.
PR tree-optimization/100393
gcc/ChangeLog:
* tree-switch-conversion.c (group_cluster::dump): Use
get_comparison_count.
(jump_table_cluster::find_jump_tables): Pre-compute number of
comparisons and then decrement it. Cache also max_ratio.
(jump_table_cluster::can_be_handled): Change signature.
* tree-switch-conversion.h (get_comparison_count): New.
(cherry picked from commit c517cf2e685e2903b591d63c1034ff9726cb3822)
next prev parent reply other threads:[~2021-11-05 16:09 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-03 11:46 [Bug c/100393] New: " curiousdannii at gmail dot com
2021-05-03 12:04 ` [Bug c/100393] " curiousdannii at gmail dot com
2021-05-03 13:37 ` [Bug tree-optimization/100393] [9/10/11/12 Regression] " rguenth at gcc dot gnu.org
2021-05-03 13:48 ` rguenth at gcc dot gnu.org
2021-05-03 13:58 ` rguenth at gcc dot gnu.org
2021-05-10 12:22 ` marxin at gcc dot gnu.org
2021-06-01 8:20 ` rguenth at gcc dot gnu.org
2021-08-13 15:25 ` marxin at gcc dot gnu.org
2021-08-13 15:26 ` marxin at gcc dot gnu.org
2021-08-16 11:38 ` cvs-commit at gcc dot gnu.org
2021-08-16 11:38 ` [Bug tree-optimization/100393] [9/10/11 " marxin at gcc dot gnu.org
2021-11-05 16:09 ` cvs-commit at gcc dot gnu.org [this message]
2021-11-05 16:10 ` marxin at gcc dot gnu.org
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