[Bug target/93934] Unnecessary fld of uninitialized float stack variable results in ub of valid C++ code

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93934

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Or the issue is in regstack handling all stack vars as 80bit and thus
introducing the conversion step in the first place.