Stan General Meeting, Mar, 18, 2021

Hangouts Link: 3

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Hey @louis-mandel, just wanted to follow up with you on some of the work you’re doing in OCaml. Can you give a quick rundown of the tasks you need some help with and anything you think might help you out. Thanks again.

Thank you @bparbhu for the follow up!

The problem is in the PR#843 which port the compiler to recent versions of the OCaml compiler and libraries.

It appears that with this new version the behavior of some optimizations have changed. We can see for example in the regression tests that lazy code motion optimization is not always applied.

I suspect that the problem is coming either from the comparison functions automatically generated by deriving or because of a change in the behavior of the Core library.

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