[Bug c/33798] New: tree-dse / -ftree-dse behavior not documented

["metallurge at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

While there is a reference to -ftree-dse being turned on with -O optimization
in both the manpage and the online docs (see e.g.
http://gcc.gnu.org/onlinedocs/gcc-4.2.0/gcc/Optimize-Options.html#Optimize-Options),
that is the only reference to this option.  The specific behavior of this
option does not appear in either the manpage or the online docs.

Confirmed to exist in 4.2.0 and 4.2.2 docsets.  Maybe more?


-- 
           Summary: tree-dse / -ftree-dse behavior not documented
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: metallurge at gmail dot com
 GCC build triplet: 4.2.0
  GCC host triplet: 4.2.0
GCC target triplet: 4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33798