[Bug sanitizer/63361] Test case c-c++-common/ubsan/float-cast-overflow-1.c fails on Pentium2

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63361

--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Comment on attachment 41771
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41771
Patch candidate

I don't think we want to add -ffloat-store unconditionally, only for targets
that really need it.