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2016 Oct 21
4
RFC: Killing undef and spreading poison
Hi Dan,
Thanks a lot for the feedback and apologies for the delay!
>> br poison -> UB
> What impact does this have on API contracts? Some library functions might currently tolerate being passed an uninitialized value (at the LLVM level; C's semantics are different). However, with the new poison, if the implementation of a function happens to do a branch on the input, the code has