[Bug tree-optimization/20742] [4.0/4.1 Regression] Hang in tree_ssa_iv_optimize_loop

[jakub at gcc dot gnu dot org]

------- Additional Comments From jakub at gcc dot gnu dot org  2005-04-04 11:40 
-------
Oops, attached older version of the testcase.  The latest one had:
#ifdef HANG
#define TEN(x) x x x x x x x x x x
      TEN (TEN (a += b; b -= a;))
#endif
in the loop as well.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742