[Bug c++/93711] ICE: [[no_unique_address] when constructing via template helper

[eteran at alum dot rit.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93711

--- Comment #1 from Evan Teran <eteran at alum dot rit.edu> ---
As a follow-up, it appears that the optimization level is a factor. I only get
the ICE in my builds which don't pass a -O flag.

Here's a live example that can be experimented with:

https://godbolt.org/z/zAEcQd

Adding -Og, -O1, -O2, etc... all make it suddenly work.