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* [Bug target/109796] New: 548.exchange2_r compiled with -O2 -flto regressed by 5% on aarch64 between r14-135-gd06e9264b0192c and r14-192-g636e2273aec555
@ 2023-05-10 14:18 jamborm at gcc dot gnu.org
  2023-12-15 19:54 ` [Bug target/109796] " pinskia at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: jamborm at gcc dot gnu.org @ 2023-05-10 14:18 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109796

            Bug ID: 109796
           Summary: 548.exchange2_r compiled with -O2 -flto regressed by
                    5% on aarch64 between r14-135-gd06e9264b0192c and
                    r14-192-g636e2273aec555
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jamborm at gcc dot gnu.org
            Blocks: 26163
  Target Milestone: ---
              Host: aarch64-linux
            Target: aarch64-linux

The slowdown can be seen clearly at

https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=581.407.0

Fortran at -O2 may not be super important and the slowdown is not huge but it
looks very stable so maybe worth a look.  I do not see any similar regression
on a different architecture or configuration.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163
[Bug 26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95)

^ permalink raw reply	[flat|nested] 2+ messages in thread

* [Bug target/109796] 548.exchange2_r compiled with -O2 -flto regressed by 5% on aarch64 between r14-135-gd06e9264b0192c and r14-192-g636e2273aec555
  2023-05-10 14:18 [Bug target/109796] New: 548.exchange2_r compiled with -O2 -flto regressed by 5% on aarch64 between r14-135-gd06e9264b0192c and r14-192-g636e2273aec555 jamborm at gcc dot gnu.org
@ 2023-12-15 19:54 ` pinskia at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-12-15 19:54 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109796

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Looks like this has been resolved.

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2023-05-10 14:18 [Bug target/109796] New: 548.exchange2_r compiled with -O2 -flto regressed by 5% on aarch64 between r14-135-gd06e9264b0192c and r14-192-g636e2273aec555 jamborm at gcc dot gnu.org
2023-12-15 19:54 ` [Bug target/109796] " pinskia at gcc dot gnu.org

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