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Subject: [Bug c++/45221] missed optimization with multiple bases and casting
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------- Comment #7 from navin dot kumar at gmail dot com  2010-08-07 16:22 -------
Richard, if you can't derive non-NULL-ness from X& y = *x, how do foo3 and fooB
avoid the null check?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45221