[Bug target/71460] Copying structs can trap (on x86-32) due to SNaN to QNaN

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71460

--- Comment #23 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Uroš Bizjak from comment #21)
> BTW: This is preexisting problem, on 64bit target we can trigger the issue
> with transparent unions with:

Followup in PR71486.