public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug rtl-optimization/14418] Unnecessary loads and stores for tail call
[not found] <bug-14418-4@http.gcc.gnu.org/bugzilla/>
@ 2021-07-19 23:44 ` pinskia at gcc dot gnu.org
2024-03-18 11:59 ` mikolajpirog at gmail dot com
2024-03-18 12:59 ` mikolajpirog at gmail dot com
2 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-07-19 23:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14418
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2006-10-22 21:08:49 |2021-7-19
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
-m32:
pushl %esi
pushl %ebx
subl $16, %esp
movl 28(%esp), %ebx
movl 32(%esp), %esi
leal (%ebx,%ebx), %eax
pushl %eax
call bar
movl %esi, 36(%esp)
movl %ebx, 32(%esp)
addl $20, %esp
popl %ebx
popl %esi
jmp quux
-m32 -march=i686:
subl $28, %esp
movl %ebx, 20(%esp)
movl 32(%esp), %ebx
movl %esi, 24(%esp)
movl 36(%esp), %esi
leal (%ebx,%ebx), %eax
movl %eax, (%esp)
call bar
movl %esi, 36(%esp)
movl 24(%esp), %esi
movl %ebx, 32(%esp)
movl 20(%esp), %ebx
addl $28, %esp
jmp quux
So in the non-i686 case, it is doing push/pop's do the same as the mov's.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/14418] Unnecessary loads and stores for tail call
[not found] <bug-14418-4@http.gcc.gnu.org/bugzilla/>
2021-07-19 23:44 ` [Bug rtl-optimization/14418] Unnecessary loads and stores for tail call pinskia at gcc dot gnu.org
@ 2024-03-18 11:59 ` mikolajpirog at gmail dot com
2024-03-18 12:59 ` mikolajpirog at gmail dot com
2 siblings, 0 replies; 5+ messages in thread
From: mikolajpirog at gmail dot com @ 2024-03-18 11:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14418
Mikołaj Piróg <mikolajpirog at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mikolajpirog at gmail dot com
--- Comment #5 from Mikołaj Piróg <mikolajpirog at gmail dot com> ---
Is there any update regarding this bug? This still occurs in GCC 13.2 and
slightly hinders performance of applications with heavy usage of tail calls.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/14418] Unnecessary loads and stores for tail call
[not found] <bug-14418-4@http.gcc.gnu.org/bugzilla/>
2021-07-19 23:44 ` [Bug rtl-optimization/14418] Unnecessary loads and stores for tail call pinskia at gcc dot gnu.org
2024-03-18 11:59 ` mikolajpirog at gmail dot com
@ 2024-03-18 12:59 ` mikolajpirog at gmail dot com
2 siblings, 0 replies; 5+ messages in thread
From: mikolajpirog at gmail dot com @ 2024-03-18 12:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14418
--- Comment #6 from Mikołaj Piróg <mikolajpirog at gmail dot com> ---
Oh, this is for i486-pc-linux-gnu, I overlooked that. Nevertheless, this still
occurs on x86_64-linux-gnu. Should I file new bug report regarding this?
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/14418] Unnecessary loads and stores for tail call
[not found] <bug-14418-1011@http.gcc.gnu.org/bugzilla/>
@ 2005-10-07 21:21 ` steven at gcc dot gnu dot org
0 siblings, 0 replies; 5+ messages in thread
From: steven at gcc dot gnu dot org @ 2005-10-07 21:21 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from steven at gcc dot gnu dot org 2005-10-07 21:21 -------
I don't have time to work on these (new job), so unassigning.
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|steven at gcc dot gnu dot |unassigned at gcc dot gnu
|org |dot org
Status|ASSIGNED |NEW
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14418
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/14418] Unnecessary loads and stores for tail call
2004-03-03 21:11 [Bug optimization/14418] New: gcc-bugzilla at gcc dot gnu dot org
@ 2005-06-25 13:23 ` steven at gcc dot gnu dot org
0 siblings, 0 replies; 5+ messages in thread
From: steven at gcc dot gnu dot org @ 2005-06-25 13:23 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From steven at gcc dot gnu dot org 2005-06-25 13:23 -------
I'll try to investigate this a bit...
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |steven at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2005-03-29 01:51:28 |2005-06-25 13:23:48
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14418
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2024-03-18 12:59 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <bug-14418-4@http.gcc.gnu.org/bugzilla/>
2021-07-19 23:44 ` [Bug rtl-optimization/14418] Unnecessary loads and stores for tail call pinskia at gcc dot gnu.org
2024-03-18 11:59 ` mikolajpirog at gmail dot com
2024-03-18 12:59 ` mikolajpirog at gmail dot com
[not found] <bug-14418-1011@http.gcc.gnu.org/bugzilla/>
2005-10-07 21:21 ` steven at gcc dot gnu dot org
2004-03-03 21:11 [Bug optimization/14418] New: gcc-bugzilla at gcc dot gnu dot org
2005-06-25 13:23 ` [Bug rtl-optimization/14418] Unnecessary loads and stores for tail call steven at gcc dot gnu dot 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).