[Bug middle-end/38271] [4.4 Regression] Spurious / missing "... used uninitialized in this function" warning

[d dot g dot gorbachev at gmail dot com]

------- Comment #8 from d dot g dot gorbachev at gmail dot com  2008-12-08 20:34 -------
(In reply to comment #7)

The patch causes segfault. This is how it happens:

tree-sra.c:1612
      for (f = TYPE_FIELDS (elt->type);
           f; f = TREE_CHAIN (f))
        {

tree-sra.c:1700
  if (size != TREE_INT_CST_LOW (TYPE_SIZE (TREE_TYPE (elt->element))))
    return f; // NULL

tree-sra.c:1764
        for (f = TYPE_FIELDS (type); f ; f = TREE_CHAIN (f))
          if (TREE_CODE (f) == FIELD_DECL)
            {
              tree last = try_instantiate_multiple_fields (elt, f);

              if (last != f)
                {
                  f = last;
                  continue;
                }


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38271