invoke.texi (SPARC Options): Document -mfix-ut699.

invoke.texi (SPARC Options): Document -mfix-ut699.

	* doc/invoke.texi (SPARC Options): Document -mfix-ut699.
	* builtins.c (expand_builtin_mathfn) <BUILT_IN_SQRT>: Try to widen the
	mode if the instruction isn't available in the original mode.
	* config/sparc/sparc.opt (mfix-ut699): New option.
	* config/sparc/sparc.md (muldf3_extend): Disable if -mfix-ut699.
	(divdf3): Turn into expander.
	(divdf3_nofix): New insn.
	(divdf3_fix): Likewise.
	(divsf3): Disable if -mfix-ut699.
	(sqrtdf2): Turn into expander.
	(sqrtdf2_nofix): New insn.
	(sqrtdf2_fix): Likewise.
	(sqrtsf2): Disable if -mfix-ut699.

From-SVN: r199366