2005-06-16 Richard Guenther <rguenth@gcc.gnu.org>
* doc/extend.texi: Document sseregparm target attribute.
Clarify fastcall and regparm documentation.
* config/i386/i386.h: Adjust float_in_sse documentation.
* config/i386/i386.c: Add new target attribute sseregparm.
(ix86_handle_cdecl_attribute, ix86_handle_regparm_attribute):
Merge into ...
(ix86_handle_cconv_attribute): ... here. Also handle
sseregparm attribute.
(ix86_comp_type_attributes): Compare sseregparm attributes.
(ix86_function_sseregparm): New function, split out from ...
(init_cumulative_args): ... here. Use to decide use
of SSE registers and error in case of missing support.
(ix86_value_regno): Likewise.
(function_arg_advance): Do not bail out for DFmode if we need
to pass doubles in registers.
(function_arg): Likewise.
* gcc.target/i386/attributes-error.c: New testcase.
* gcc.target/i386/fastcall-sseregparm.c: Likewise.
* gcc.target/i386/regparm-stdcall.c: Likewise.
* gcc.target/i386/sseregparm-1.c: Likewise.
* gcc.target/i386/sseregparm-2.c: Likewise.
From-SVN: r101085
