[Bug tree-optimization/41019] Variate_generator with mt19937 and normal_distribution produces wrong sequence for "-O3".

[afoglia at gmail dot com]

------- Comment #5 from afoglia at gmail dot com  2009-08-11 20:17 -------
(In reply to comment #4)
> Disabling vectorization fixes the problem (-fno-tree-vectorize), happens on
> trunk as well.  4.3 doesn't like the testcase, so it's not yet a regression.
> 

4.3 may not like the test case, but if you use Boost's variate_generator with
4.3, which can hold references to engines, you get the same results, implying
it's the use the mt19937 engine via reference that causes the problem.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41019