https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98249
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |9.5
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=34158
Summary|Improper ADL on the `arg` |[9/10/11/12 Regression]
|in `new (arg) T` |Improper ADL on the `arg`
| |in `new (arg) T`
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I suspect the cause was the patch for PR 34158 (but I could be wrong).