http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
--- Comment #58 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-11-26 17:34:23 UTC --- At least in my cross it seems the r166947 commit just changed default tuning for -m64, from -mtune=power4 to -mtune=rs64. Not sure if it was intentional or not. Anyway, with explicit -mtune=power4 the result is exactly the same as before without any tuning options (and with -mtune=rs64 before is the same as now without any tuning options).
