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* [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 @ 2024-03-26 11:59 pheeck at gcc dot gnu.org 2024-03-26 12:00 ` [Bug target/114481] " pheeck at gcc dot gnu.org ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: pheeck at gcc dot gnu.org @ 2024-03-26 11:59 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114481 Bug ID: 114481 Summary: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: missed-optimization, needs-bisection Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: pheeck at gcc dot gnu.org Blocks: 26163 Target Milestone: --- Host: aarch64-gnu-linux Target: aarch64-gnu-linux As seen here https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=686.70.0 between the commits g:8b483cd5521de79c g:81ee1298b47d3f3b there was an 14% runtime slowdown of 433.milc on aarch64. The CPU is Ampere Altra Neoverse N1. The compilation options were -O2 -flto PGO. --- Btw here is a plot that also includes GCC13 and GCC12. https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=686.70.0&plot.4=749.70.0&plot.5=869.70.0 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] 5+ messages in thread
* [Bug target/114481] [14 Regression] 14% exec time slowdown of 433.milc on aarch64 2024-03-26 11:59 [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 pheeck at gcc dot gnu.org @ 2024-03-26 12:00 ` pheeck at gcc dot gnu.org 2024-03-27 8:37 ` rguenth at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: pheeck at gcc dot gnu.org @ 2024-03-26 12:00 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114481 Filip Kastl <pheeck at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |14.0 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/114481] [14 Regression] 14% exec time slowdown of 433.milc on aarch64 2024-03-26 11:59 [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 pheeck at gcc dot gnu.org 2024-03-26 12:00 ` [Bug target/114481] " pheeck at gcc dot gnu.org @ 2024-03-27 8:37 ` rguenth at gcc dot gnu.org 2024-03-28 10:31 ` [Bug target/114481] " pheeck at gcc dot gnu.org 2024-05-07 7:45 ` rguenth at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu.org @ 2024-03-27 8:37 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114481 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Looks like speed is back to 12/13, so possibly not a regression. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/114481] 14% exec time slowdown of 433.milc on aarch64 2024-03-26 11:59 [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 pheeck at gcc dot gnu.org 2024-03-26 12:00 ` [Bug target/114481] " pheeck at gcc dot gnu.org 2024-03-27 8:37 ` rguenth at gcc dot gnu.org @ 2024-03-28 10:31 ` pheeck at gcc dot gnu.org 2024-05-07 7:45 ` rguenth at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: pheeck at gcc dot gnu.org @ 2024-03-28 10:31 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114481 Filip Kastl <pheeck at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|[14 Regression] 14% exec |14% exec time slowdown of |time slowdown of 433.milc |433.milc on aarch64 |on aarch64 | --- Comment #2 from Filip Kastl <pheeck at gcc dot gnu.org> --- (In reply to Richard Biener from comment #1) > Looks like speed is back to 12/13, so possibly not a regression. Ah, I misunderstood what [14 Regression] means exactly. I'll remove it from the bug's name. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/114481] 14% exec time slowdown of 433.milc on aarch64 2024-03-26 11:59 [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 pheeck at gcc dot gnu.org ` (2 preceding siblings ...) 2024-03-28 10:31 ` [Bug target/114481] " pheeck at gcc dot gnu.org @ 2024-05-07 7:45 ` rguenth at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu.org @ 2024-05-07 7:45 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114481 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|14.0 |14.2 --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- GCC 14.1 is being released, retargeting bugs to GCC 14.2. ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2024-05-07 7:45 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2024-03-26 11:59 [Bug target/114481] New: [14 Regression] 14% exec time slowdown of 433.milc on aarch64 pheeck at gcc dot gnu.org 2024-03-26 12:00 ` [Bug target/114481] " pheeck at gcc dot gnu.org 2024-03-27 8:37 ` rguenth at gcc dot gnu.org 2024-03-28 10:31 ` [Bug target/114481] " pheeck at gcc dot gnu.org 2024-05-07 7:45 ` rguenth at gcc dot gnu.org
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