[Bug optimization/14643] New: [tree-ssa] aliasing bug

[dann at godzilla dot ics dot uci dot edu]

Given:

struct bar { int count;  int *arr;};

void foo (struct bar *b)
{
  b->count = 0;
  *(b->arr) = 2;
  if (b->count != 0)  link_error ();
}

"if" should not be optimized, but it currently is.

-- 
           Summary: [tree-ssa] aliasing bug
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dann at godzilla dot ics dot uci dot edu
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14643