[Bug c++/127513] [15/16/17 Regression] array of class with initializer_list constructor fails overload resolution depending on optimization level and other conditions

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127513

--- Comment #2 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 65640
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65640&action=edit
Reduced testcase for fail_1

This looks related to PR 127016 but not exactly the same.

But as this whole area has many defect reports I am not sure what is the right
answer.