Viewing profile — sanjoy_das

> It is interesting to me that right now this is sitting on the HN homepage directly adjacent to: "Tesla to recall vehicles that may disobey stop signs (reuters.com)" Based on http…

Another data point: I tend to receive far more recruiter cold calls in an old email address that I no longer use than in my newer more active email address.

Similar: tfcompile AOT compiles TensorFlow models into native code using XLA ( https://www.tensorflow.org/xla/tfcompile ).

That's an especially interesting possibility since LLVM now has IR support for C++ coroutines.

> Recursion and memoization is easy but dynamic programming doesn't really feel as natural. Ways to get better? Just do more? Once you have the recursive solution, the DP solution …

I can never understand this attitude. Programmers are people -- why is it surprising that some of them are ethically flexible?

My guess is that they meant "up" in the sense of "up in post dominator tree".

> How did the other thread get the reference to the object? The only possible existing reference is the one we are using to decrement the shared counter. I don't think this affects…

In (other) words, the situation is that you've just decremented the reference count of an object, because you've nulled out the only location in the heap that reached it. The refer…

Yup. The "obvious" downside to that is that you'll burn CPU cycles and memory by generating and keeping around a slow-but-correct compile for every function.

Is this what you're looking for: http://www.playingwithpointers.com/check-widening-in-llvm.ht... ?

Yes they're definitely close, but I don't know if there are subtle differences in semantics between what we have in LLVM and what Swift needs (since I'm not familiar with Swift).

Interesting observation -- just because I've checked `%i` is within array bounds, doesn't mean `a[%i]` is safe to access, since `%i` could be `undef` and pass the range check spuri…

From the thesis the post linked to: ``` Although limbo lists are accessed using lock-free operations, and garbage collection does not interfere with other mutator processes, this r…

With ARC sharing objects across threads becomes trickier. First of all, in the general case you'll have to do atomic increments and decrements which tend to be fairly expensive, an…

Another interesting data point is libFirm: http://pp.ipd.kit.edu/firm/ which regalloc's directly over SSA.