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It has a quite nice high level programming model tbh. FastRPC is quite nice.

And there's Halide support too.

I used to work with the Halide guys from 2019-2021; I was on the TVM team. The compilers group was very proud of Halide's success in the early pixel phones. That was the library behind HDR+ on the Pixel 3.

Hexagon is a difficult architecture to write code for but the benefits are worth it: it's the secret sauce for why Qualcomm's modems are so good. I see people getting all excited over AVX512 and I just think "well we had 2048 bit vectors years ago"

It is? And not any esoteric analog design? That explains the secrecy.

ex qualcomm qct compiler person here: qualcomm RF was so good even when Hexagon was being developed. if they moved their advantage onto Hexagon thereafter, that's cool.

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