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

[irar at il dot ibm dot com]

------- Comment #6 from irar at il dot ibm dot com  2009-08-12 12:14 -------
Looks like a problem in data-ref analysis:

Creating dr for this_6(D)->_M_x[__k_87]
...
        base_address: this_6(D)
        offset from base address: 0
        constant offset from base address: 0
        step: 8
        aligned to: 128
        base_object: this_6(D)->_M_x[0]

And the vectorizer creates accesses relatively to this_6(D) (base_address
above) with zero offset (instead of this_6(D)->_M_x[0] or with an offset of
_M_x).

Ira


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