[Bug tree-optimization/29922] [4.3 Regression] [Linux] ICE in insert_into_preds_of_block

[pinskia at gcc dot gnu dot org]

------- Comment #9 from pinskia at gcc dot gnu dot org  2006-11-25 09:13 -------
(gdb) p debug_generic_expr (vh)
VH.22
$4 = void
(gdb) p debug_generic_expr (eprime)
strlen (&lineD.1610)
(gdb) p debug_generic_expr (vuse)
lineD.1610_11

We have:
  # NONLOCAL.5_14 = PHI <NONLOCAL.5_18(5)>;
  # line_11 = PHI <line_17(5)>;
<L4>:;
  #   VUSE <line_11>;
  #   VUSE <NONLOCAL.5_14>;
  D.1623_6 = strlen (&line);
  if (D.1623_6 == 100) goto <L6>; else goto <L7>;

Though the good question is why we have those PHIs still there even though they
don't do anything except produce a copy.  All the copyprop passes as far as I
can tell skip them because they are virtual.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29922