[Bug tree-optimization/38048] New: [4.3 Regression] Wrong alias info for array access

[rguenth at gcc dot gnu dot org]

extern void abort(void);

int foo ()
{
  int mat[2][1];
  int (*a)[1] = mat;
  int det = 0;
  int i;
  mat[0][0] = 1;
  mat[1][0] = 2;
  for (i = 0; i < 2; ++i)
    det += a[i][0];
  return det;
}

int main()
{
  if (foo () != 3)
    abort ();
  return 0;
}


-- 
           Summary: [4.3 Regression] Wrong alias info for array access
           Product: gcc
           Version: 4.3.2
            Status: UNCONFIRMED
          Keywords: wrong-code, alias
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38048