* config/i386/i386.c (ix86_float_exceptions_rounding_supported_p):
	New function.
	(TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P): Define.

c-family:
	* c-cppbuiltin.c (cpp_iec_559_value): Test
	flag_excess_precision_cmdline not flag_excess_precision.

From-SVN: r204390