2016-06-07  Richard Biener  <rguenther@suse.de>

	PR c/61564
	* c-common.c (parse_optimize_options): Only apply CL_OPTIMIZATION
	options and warn about others.
	* common.opt (ffast-math): Make Optimization.

	* gcc.dg/Wpragmas-1.c: New testcase.
	* gcc.dg/Wattributes-4.c: Likewise.
	* gcc.dg/ipa/pr70646.c: Drop optimize pragma in favor of dg-option
	entry.

From-SVN: r237174