[Bug middle-end/51460] [4.6/4.7 Regression] Struct with two boost mutexes allocated on the heap inside of a while loop causes compiler segfault

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51460

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |hubicka at gcc dot gnu.org

--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-08 
10:58:54 UTC ---
For the reduced testcase we recurse endlessly through

      /* If there is non-abnormal path leaving e->src, predict edge
         using predictor.  Otherwise we need to look for paths
         leading to e->src.  */
      if (found)
        predict_edge_def (e, pred, taken);
      else
        predict_paths_for_bb (e->src, e->src, pred, taken);

instead.  That recursion is new in 4.6.  I think it wants to recurse
not to e->src but get_immediate_dominator (CDI_DOMINATORS, cur) (outside of the
loop?)

Caused by rev. 161691, thus Honza.