I believe there is an off-by-one typo in the examples for -floop-strip-mine and -floop-block, see the attached patch.
Created attachment 16437 [details] patch for the typos
Subject: Re: typo in the example for -floop-strip-mine The patch looks good. Please install. I also have installed a similar patch in htdocs/gcc-4.4/changes.html
Fixed. http://gcc.gnu.org/viewcvs?view=rev&revision=141042