libgcc/
2018-01-23  Max Filippov  <jcmvbkbc@gmail.com>

	* config/xtensa/ieee754-df.S (__addsf3, __subsf3, __mulsf3)
	(__divsf3): Make NaN return value quiet.
	* config/xtensa/ieee754-sf.S (__adddf3, __subdf3, __muldf3)
	(__divdf3): Make NaN return value quiet.

From-SVN: r257002