2004-04-23 Paolo Bonzini <bonzini@gnu.org>

	* doc/invoke.texi (Optimize Options): Refer to "unit-at-a-time
	mode" rather than "-funit-at-a-time" since -O2 enables it
	without requiring -f* options.	Refer to -fprofile-generate and
	-fprofile-use correctly.  Move -funit-at-a-time among options
	enabled by -O.	Add information about unit-at-a-time caveats.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@81082 138bc75d-0d04-0410-961f-82ee72b054a4