[Bug libstdc++/29286] [4.0/4.1/4.2/4.3 Regression] placement new does not change the dynamic type as it should

[ian at airs dot com]

------- Comment #49 from ian at airs dot com  2007-05-12 00:22 -------
Created an attachment (id=13543)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13543&action=view)
Patch

Like sands through the hourglass, so are the patches to PR 29286.

This version creates a new tree code.  At the RTL level the aliasing is
represented by a list of merged alias sets.  I think this is the best one so
far.  Any comments?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29286