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

[ubizjak at gmail dot com]

------- Comment #21 from ubizjak at gmail dot com  2009-08-13 15:26 -------
Created an attachment (id=18353)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18353&action=view)
patch to fix the failure

I'm testing the attached patch.

There is a little complication w.r.t to V2DI handling. Since vcond pattern
assumes that we have full set of comparisons, we cannot enable V2DI on
TARGET_SSE4.1 because SSE4.1 handles only EQ comparison. SSE4.2 and SSE5 handle
full set, so V2DI vcond pattern can again be enabled on these targets.


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