[llvm-dev] Dynamic detection of signed integer overflow

[John Regehr via llvm-dev]

> I just wondered whether the checks might have been implemented for vector types as well since Clang features vector extensions for the C language.

Ah, no, I don't believe so.  And making these checks efficient might be 
challenging.  Adding them sounds useful to whatever extent the vector 
users care about overflows (I hope they care...).

John