http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55754
--- Comment #3 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2012-12-20 15:44:23 UTC --- (In reply to comment #1) > This hunk needs to be reverted. op0 is modified but it is set to an equivalent > value. Perhaps you could update the documentation to make that clearer. Eg, by adding to the example a safe transformation (like this one).
