------- Comment #3 from pinskia at gcc dot gnu dot org 2006-05-11 18:45 ------- Have you tried using the -march=athlonXXXX options (where XXXX is replaced with your CPU type)?
Also do you have a list of instructions which supported on which Athlon? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27562
