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gh-104584: Allow unspecialized instructions in superblocks #106497

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Merged
gvanrossum merged 5 commits into from
Jul 7, 2023
+490 −128
Merged

gh-104584: Allow unspecialized instructions in superblocks #106497

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f936d17
No forbidden words in #if ENABLE_SPECIALIZATION
gvanrossum Jul 2, 2023
7b1a96b
Add test for unspecialized uop UNPACK_SEQUENCE
gvanrossum Jul 6, 2023
b026112
Add comment explaining how to undo this
gvanrossum Jul 7, 2023
e2758f2
Merge remote-tracking branch 'origin/main' into unspecialized-uops
gvanrossum Jul 7, 2023
c30eee9
Regen cases
gvanrossum Jul 7, 2023
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Add test for unspecialized uop UNPACK_SEQUENCE
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@gvanrossum
gvanrossum committed Jul 6, 2023
commit 7b1a96b10e7a06343e2582705f0448d3c9952599
28 changes: 28 additions & 0 deletions Lib/test/test_capi/test_misc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2443,6 +2443,34 @@ def testfunc(x):
self.assertIn("SAVE_IP", uops)
self.assertIn("LOAD_FAST", uops)

def test_unspecialized_unpack(self):
# An example of an unspecialized opcode
def testfunc(x):
i = 0
while i < x:
i += 1
a, b = {1: 2, 3: 3}
assert a == 1 and b == 3
i = 0
while i < x:
i += 1

opt = _testinternalcapi.get_uop_optimizer()

with temporary_optimizer(opt):
testfunc(10)

ex = None
for offset in range(0, len(testfunc.__code__.co_code), 2):
try:
ex = _testinternalcapi.get_executor(testfunc.__code__, offset)
break
except ValueError:
pass
self.assertIsNotNone(ex)
uops = {opname for opname, _ in ex}
self.assertIn("UNPACK_SEQUENCE", uops)


if __name__ == "__main__":
unittest.main()