Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
333f7573d7
This PR fixes an issue where uses of 'noncomputable' definitions can get incorrectly compiled, while also removing the use of 'noncomputable' definitions altogether. Some uses of 'noncomputable' definitions (e.g. Classical.propDecidable) do not get compiled correctly by type erasure. Running the optimizer on the result can lead to them being optimized away, eluding the later IR-level check for uses of noncomputable definitions. To fix this, we add a 'noncomputable' check earlier in the erase_irrelevant pass. |
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