re PR target/66047 (vlc compilation failure with target attribute)

	PR target/66047
	* i386.c (ix86_function_sseregparm): Only return -1 if local function
	with implied regparm is called from -mno-sse function.
	(init_cumulative_args): Output error if ix86_function_sseregparm
	return -1 and SSE register would be needed.
	(function_arg_advance_32): Likewise.
	(function_arg_32): Likewise.
	* i386.h (ix86_args): Add decl field.
	* gcc.target/i386/pr66047.c: New testcase.

From-SVN: r223111