Siu Kwan Lam

It is known that Numba's `range()` implementation is not optimal for LLVM loop optimizers. Even when one manually unroll loop for a constant loop bound, the way `range()` is implemented...

Numba 0.59.0 Final Checklist

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## numba 0.59.0 * [x] Cherry-pick items from the 0.59 milestone into a cherry-pick PR: https://github.com/numba/numba/pull/9405 * [x] Update the "version support table" in the documentation with the final release...

Remaining task from https://github.com/numba/numba/issues/9372 Fix the changelog script to account for missing author info on github. probably should use git info to fill in the blanks.

Python 3.13

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This issue is to track tasks and issues with Python 3.13. Numba support status: - Started early work on Python3.13.0a3. So far, there is minimal bytecode changes (WIP branch: https://github.com/numba/numba/compare/main...sklam:numba:wip/py3.13)....

Allow nopython code to raise warnings

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NumPy uses warnings to communicate errors in computation (e.g. divide-by-zero). Numba needs to do the same when executing jitted numpy ufuncs. Example: ``` python >>> def foo(a, b): ... return...

2023 Q2-Q4 roadmap gantt chart for major tasks.

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The following gantt chart includes: - release schedule of dependency - release schedule of Numba - major tasks - release schedule of packages support future Numba (temporarily named as "Numba++")...

Stop type inference from indefinite retry on failed function resolution

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Fix hang seen in https://github.com/numba/numba/issues/9257 Summary of changes: - Added a fail-cache to remember failed function resolution for the current compilation session and avoid repeated attempts of known failing cases....

Python 3.12 pre-check

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- [ ] https://github.com/python/cpython/issues/109372 Object cache is SIGILL'ing on OSX x86-on-M1. - `test_object_cache_getbuffer` and `test_object_cache_notify` prints: ```pytb Fatal Python error: Illegal instruction Current thread 0x0000000205656280 (most recent call first): File...

The `RETURN_VALUE` bytecode is not unified by when SCFG join returns. This leads to SCFG that semantically terminates in the middle of switches. For example: ```python import dis from numba_rvsdg.core.datastructures.scfg...

Branch transformation creates invalid edge

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See images below. Loop block has edge violating the region structures. **Reproducer 1** YAML: ``` "mock_block_0": jt: ["mock_block_2", "mock_block_10"] "mock_block_2": jt: ["mock_block_5", "mock_block_11"] "mock_block_5": jt: ["mock_block_10", "mock_block_5"] "mock_block_10": jt: ["mock_block_11"]...