public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug other/100826] New: Add that "-fgcse-after-reload" is enabled at "-O3" @ 2021-05-29 12:13 firasuke at gmail dot com 2021-05-31 8:44 ` [Bug other/100826] " marxin at gcc dot gnu.org ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: firasuke at gmail dot com @ 2021-05-29 12:13 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100826 Bug ID: 100826 Summary: Add that "-fgcse-after-reload" is enabled at "-O3" Product: gcc Version: 11.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other Assignee: unassigned at gcc dot gnu.org Reporter: firasuke at gmail dot com Target Milestone: --- Hello there, Upon reading the GCC manual I stumbled upon the following flag `-fgcse-after-reload`, which happens to be mentioned twice, the first time being at: ``` -O3 Optimize yet more. -O3 turns on all optimizations specified by -O2 and also turns on the following optimization flags: -fgcse-after-reload -fipa-cp-clone ... ``` and the second time: ``` -fgcse-after-reload When -fgcse-after-reload is enabled, a redundant load elimination pass is performed after reload. The purpose of this pass is to clean up redundant spilling. Enabled by -fprofile-use and -fauto-profile. ``` I think it'd be better if the following statement: "Enabled by -fprofile-use and -fauto-profile." be changed to: "Enabled by -O3, -fprofile-use, and -fauto-profile." to show that it is also enabled by `-O3`, similar to `-fpeel-loops`. Thanks in advance! ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug other/100826] Add that "-fgcse-after-reload" is enabled at "-O3" 2021-05-29 12:13 [Bug other/100826] New: Add that "-fgcse-after-reload" is enabled at "-O3" firasuke at gmail dot com @ 2021-05-31 8:44 ` marxin at gcc dot gnu.org 2021-06-01 12:21 ` cvs-commit at gcc dot gnu.org ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: marxin at gcc dot gnu.org @ 2021-05-31 8:44 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100826 Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2021-05-31 Assignee|unassigned at gcc dot gnu.org |marxin at gcc dot gnu.org Ever confirmed|0 |1 CC| |marxin at gcc dot gnu.org Status|UNCONFIRMED |ASSIGNED --- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> --- I'll take a look. Thanks for the report. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug other/100826] Add that "-fgcse-after-reload" is enabled at "-O3" 2021-05-29 12:13 [Bug other/100826] New: Add that "-fgcse-after-reload" is enabled at "-O3" firasuke at gmail dot com 2021-05-31 8:44 ` [Bug other/100826] " marxin at gcc dot gnu.org @ 2021-06-01 12:21 ` cvs-commit at gcc dot gnu.org 2021-06-01 12:22 ` marxin at gcc dot gnu.org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2021-06-01 12:21 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100826 --- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Martin Liska <marxin@gcc.gnu.org>: https://gcc.gnu.org/g:fdbd0cb73af527f0630f0cbb26edb8584f593fea commit r12-1140-gfdbd0cb73af527f0630f0cbb26edb8584f593fea Author: Martin Liska <mliska@suse.cz> Date: Tue Jun 1 14:17:39 2021 +0200 docs: Mention that -fgcse-after-reload is enabled with -O3. gcc/ChangeLog: PR other/100826 * doc/invoke.texi: Mention that -fgcse-after-reload is enabled with -O3. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug other/100826] Add that "-fgcse-after-reload" is enabled at "-O3" 2021-05-29 12:13 [Bug other/100826] New: Add that "-fgcse-after-reload" is enabled at "-O3" firasuke at gmail dot com 2021-05-31 8:44 ` [Bug other/100826] " marxin at gcc dot gnu.org 2021-06-01 12:21 ` cvs-commit at gcc dot gnu.org @ 2021-06-01 12:22 ` marxin at gcc dot gnu.org 2021-06-01 13:53 ` firasuke at gmail dot com ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: marxin at gcc dot gnu.org @ 2021-06-01 12:22 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100826 Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|ASSIGNED |RESOLVED --- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> --- Fixed. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug other/100826] Add that "-fgcse-after-reload" is enabled at "-O3" 2021-05-29 12:13 [Bug other/100826] New: Add that "-fgcse-after-reload" is enabled at "-O3" firasuke at gmail dot com ` (2 preceding siblings ...) 2021-06-01 12:22 ` marxin at gcc dot gnu.org @ 2021-06-01 13:53 ` firasuke at gmail dot com 2021-06-01 13:59 ` marxin at gcc dot gnu.org 2021-09-17 6:43 ` pinskia at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: firasuke at gmail dot com @ 2021-06-01 13:53 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100826 --- Comment #4 from Firas Khalil Khana <firasuke at gmail dot com> --- Glad I could help. Thanks for your time and effort! ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug other/100826] Add that "-fgcse-after-reload" is enabled at "-O3" 2021-05-29 12:13 [Bug other/100826] New: Add that "-fgcse-after-reload" is enabled at "-O3" firasuke at gmail dot com ` (3 preceding siblings ...) 2021-06-01 13:53 ` firasuke at gmail dot com @ 2021-06-01 13:59 ` marxin at gcc dot gnu.org 2021-09-17 6:43 ` pinskia at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: marxin at gcc dot gnu.org @ 2021-06-01 13:59 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100826 --- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Firas Khalil Khana from comment #4) > Glad I could help. Thanks for your time and effort! You're welcome. We thank you for reporting that! ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug other/100826] Add that "-fgcse-after-reload" is enabled at "-O3" 2021-05-29 12:13 [Bug other/100826] New: Add that "-fgcse-after-reload" is enabled at "-O3" firasuke at gmail dot com ` (4 preceding siblings ...) 2021-06-01 13:59 ` marxin at gcc dot gnu.org @ 2021-09-17 6:43 ` pinskia at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-09-17 6:43 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100826 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |documentation Target Milestone|--- |12.0 ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2021-09-17 6:43 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-05-29 12:13 [Bug other/100826] New: Add that "-fgcse-after-reload" is enabled at "-O3" firasuke at gmail dot com 2021-05-31 8:44 ` [Bug other/100826] " marxin at gcc dot gnu.org 2021-06-01 12:21 ` cvs-commit at gcc dot gnu.org 2021-06-01 12:22 ` marxin at gcc dot gnu.org 2021-06-01 13:53 ` firasuke at gmail dot com 2021-06-01 13:59 ` marxin at gcc dot gnu.org 2021-09-17 6:43 ` pinskia at gcc dot gnu.org
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).