------- Comment #2 from rguenth at gcc dot gnu dot org 2009-08-09 19:10 ------- Can you check if regparm(3) behavior ever changed during the gcc releases?
> Hardly anyone deliberately designed it this way. Gcc internals are exposed to > the ABI! well, regparm(n) is certainly out of the psABI and I am not sure the regparm ABI has a proper specification anywhere. But indeed it is exposed as ABI so we shouldn't change it if we didn't do so repeatedly in the past. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41017