[cfe-dev] Interesting behaviour with UBSAN+libc++

[Stephan Bergmann]

On 12/04/2014 10:39 PM, Richard Smith wrote:
> The UBSan runtime's support for type checks of virtual bases is new and
> possibly incorrect.

...which reminds me of 
<http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20141201/247604.html> 
"[PATCH] [comiler-rt/ubsan] getVtablePrefix must not sanity-check on 
Prefix->Offset > 0"