[Bug optimization/13343] New: [tree-ssa] self-pointing pointers are sometimes miscompiled

["jim at phython dot shacknet dot nu" <gcc-bugzilla at gcc dot gnu dot org>]

In the attached testcase v3 points to itself and is then assigned the value 123.
However, foo gets inlined at the rtl level in O1 or at the tree level in O2 and
causes the return value to be 20, on my machine, instead of 123 as is expected and
is returned on gcc 3.3 with and without optimizations.

-- 
           Summary: [tree-ssa] self-pointing pointers are sometimes
                    miscompiled
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jim at phython dot shacknet dot nu
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: sparc-unknown-linux-gnu
  GCC host triplet: sparc-unknown-linux-gnu
GCC target triplet: sparc-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13343