http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53425
jbeulich at novell dot com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jbeulich at novell dot com --- Comment #4 from jbeulich at novell dot com --- I don't think this is quite right for 32-bit: For one, MMX types should be handled separately in that case. And there are now two warnings for both MMX and SSE types, i.e. the new one is redundant with the ones generated by function_arg_32(). I believe all that's needed is adding TARGET_64BIT to the conditional in type_natural_mode().