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gh-118335: Configure Tier 2 interpreter at build time (#118339)

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The code for Tier 2 is now only compiled when configured
with `--enable-experimental-jit[=yes|interpreter]`.

We drop support for `PYTHON_UOPS` and -`Xuops`,
but you can disable the interpreter or JIT
at runtime by setting `PYTHON_JIT=0`.
You can also build it without enabling it by default
using `--enable-experimental-jit=yes-off`;
enable with `PYTHON_JIT=1`.

On Windows, the `build.bat` script supports
`--experimental-jit`, `--experimental-jit-off`,
`--experimental-interpreter`.

In the C code, `_Py_JIT` is defined as before
when the JIT is enabled; the new variable
`_Py_TIER2` is defined when the JIT *or* the
interpreter is enabled. It is actually a bitmask:
1: JIT; 2: default-off; 4: interpreter.
This commit is contained in:
Guido van Rossum 2024-04-30 18:26:34 -07:00 • committed by GitHub
parent 9c468e2c5d
commit 7d83f7bcc4
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GPG key ID: B5690EEEBB952194
32 changed files with 181 additions and 42 deletions
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10
Lib/test/test_monitoring.py
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@ -1831,15 +1831,17 @@ class TestOptimizer(MonitoringTestBase, unittest.TestCase):
def setUp(self):
_testinternalcapi = import_module("_testinternalcapi")
self.old_opt = _testinternalcapi.get_optimizer()
opt = _testinternalcapi.new_counter_optimizer()
_testinternalcapi.set_optimizer(opt)
if hasattr(_testinternalcapi, "get_optimizer"):
self.old_opt = _testinternalcapi.get_optimizer()
opt = _testinternalcapi.new_counter_optimizer()
_testinternalcapi.set_optimizer(opt)
super(TestOptimizer, self).setUp()
def tearDown(self):
super(TestOptimizer, self).tearDown()
import _testinternalcapi
_testinternalcapi.set_optimizer(self.old_opt)
if hasattr(_testinternalcapi, "get_optimizer"):
_testinternalcapi.set_optimizer(self.old_opt)
def test_for_loop(self):
def test_func(x):