https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104468
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Erik Carstensen from comment #3)
> Do we know that some suspected underlying issue is fixed, or could it be
> that the window of slowness (struct size ∈ [17,80]) just has moved?
There is g:716a5836928ee6d8fb884d9a2fbc1b1386ec8994 which removed some
quadraticness regarding to large structures and name lookup. But that was C++
...
I don't know of anything specific otherwise. We did do some compile-time
improvements in var-tracking and GCC 11 shows
var-tracking dataflow : 2.67 ( 41%) 0.00 ( 0%) 2.66 ( 41%)
96k ( 2%)
var-tracking emit : 2.62 ( 40%) 0.00 ( 0%) 2.63 ( 40%)
0 ( 0%)
so that might be it. Maybe that's possible to backport as well.
