[Bug tree-optimization/85699] [9 regression] gcc.dg/nextafter-2.c fail

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85699

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 44097
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44097&action=edit
gcc9-pr85699.patch

Untested workaround (if we want to workaround libc bugs in the testsuite).