https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107860
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Can you attach config.log from the gcc directory?
It should have done detected filds :
gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
gcc_cv_as_ix86_filds,,
[filds (%ebp); fists (%ebp)],,
[AC_DEFINE(HAVE_AS_IX86_FILDS, 1,
[Define if your assembler uses filds and fists mnemonics.])])
