Fix #1687: postpone computations in tailrec until they are needed. #1909
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Previous version precomputed everything needed to make the final decision. This was fast-path for method that will be tail-rec transformed. Unfortunatelly, in case decision was not to tail-rec optimize it could have led to exponential number of transformations. Now, the fast-path is for methods that will not.
The b-test would compile for a millenia without the fix.
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ping @mukel |
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LGTM |
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Previous version precomputed everything needed to make the final decision.
This was fast-path for method that will be tail-rec transformed.
Unfortunatelly, in case decision was not to tail-rec optimize it could have
led to exponential number of transformations.
Now, the fast-path is for methods that will not.