[Bug bootstrap/79956] [7 Regression] many new -Wmaybe-uninitialized warnings with bootstrap-O3

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79956

--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 40922
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40922&action=edit
unreduced testcase