* gcc.dg/i386-sse-5.c: New test
* g++.dg/eh/simd-1.c: Add -w argument for i386.
* i386.c (init_cumulative_args): Add handling of MMX_REGPARM.
(function_arg_advance): Do not pass aggregates in SSE; deal handling
of MMX_REGPARM.
(function_arg): Add new warnings about ABI changes; fix SSE_REGPARM;
add MMX_REGPARM.
* i386.h (ix86_args): Add mmx_words/mmx_regs/mmx_regno fields.
(SSE_REGPARM_MAX): Default to 3 on i386 -msse ABI.
(MMX_REGPARM_MAX): Similarly for -mmmx.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@75467
138bc75d-0d04-0410-961f-
82ee72b054a4