cpython/Misc/NEWS.d/next/Core and Builtins/2024-04-26-14-06-18.gh-issue-118335.SRFsxO.rst
Guido van Rossum a524152b8c
gh-118335: Make REGEN_JIT_COMMAND empty if tier2 interpreter enabled (#118493)
Also patch up news blurb for gh-118339
(add warning that PYTHON_UOPS is now PYTHON_JIT).
2024-05-01 16:36:29 -07:00

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Change how to use the tier 2 interpreter. Instead of running Python with
``-X uops`` or setting the environment variable ``PYTHON_UOPS=1``, this
choice is now made at build time by configuring with
``--enable-experimental-jit=interpreter``.
**Beware!** This changes the environment variable to enable or disable
micro-ops to ``PYTHON_JIT``. The old ``PYTHON_UOPS`` is no longer used.