[Bug bootstrap/70838] internal compiler error on libiberty/floatformat.c when bootstrapping 5.3.0 with 5.3.0

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70838

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
*** Bug 70837 has been marked as a duplicate of this bug. ***