[Bug middle-end/39885] Missed fre optimization

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2009-04-24 14:52 -------
  # VUSE <.MEMD.1167_170>
  D.827_47 = #ref#1#4.23D.819_42->lengthD.194;
  D.828_49 = (unsigned intD.6) D.827_47;
  if (D.828_49 <= 2)
    goto <bb 7>;
  else
    goto <bb 8>;

<bb 7>:
  # VUSE <.MEMD.1167_170>
  _Jv_ThrowBadArrayIndexD.121 (2);

<bb 8>:
  # .MEMD.1167_171 = VDEF <.MEMD.1167_170>
  (*D.820_43)[2] = 3;
  #ref#1#4.27D.833_58 = #ref#1#4.15D.791_10;
  D.834_59 = &#ref#1#4.27D.833_58->dataD.195;
  # VUSE <.MEMD.1167_171>
  D.841_63 = #ref#1#4.27D.833_58->lengthD.194;

the store to (*D.820_43)[2] aliases length.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39885