[Bug tree-optimization/20121] Aliasing lameness results in missing common subexpressions

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2006-02-16 21:25 -------
Fixed by Daniel's patches.
We get now:

<bb 2>:
  D.1542 = xmalloc ((long unsigned int) n_basic_blocks * 4);
  e = frob ();
  D.1544 = e->dest;
  D.1545 = D.1544->flags;
  if ((D.1545 & 4) == 0) goto <L0>; else goto <L1>;

<L0>:;
  D.1544->flags = D.1545 | 4;
  *(struct basic_block_def * *) D.1542 = D.1544;

<L1>:;
  return;


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20121