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Bytecode parity - exception #7557

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Bytecode parity - exception #7557

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9cb223d
compare_bytecode.py
youknowone Apr 2, 2026
10d7ecd
Align except* bytecode chaining with CPython
youknowone Apr 3, 2026
2186be6
Fix exception state model and finally handler cleanup
youknowone Apr 5, 2026
8b264e5
Fix CI: dead store elimination, formatting, snapshot
youknowone Apr 5, 2026
4505676
Fix RERAISE to only pop exception, preserve values below
youknowone Apr 8, 2026
3b71dc4
Port apply_static_swaps and BUILD_TUPLE/UNPACK_SEQUENCE elimination
youknowone Apr 8, 2026
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6 changes: 1 addition & 5 deletions Lib/test/test_peepholer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -144,7 +144,6 @@ def f():
self.assertInBytecode(f, elem)
self.check_lnotab(f)

@unittest.expectedFailure # TODO: RUSTPYTHON
def test_pack_unpack(self):
for line, elem in (
('a, = a,', 'LOAD_CONST',),
Expand All @@ -158,7 +157,7 @@ def test_pack_unpack(self):
self.assertNotInBytecode(code, 'UNPACK_SEQUENCE')
self.check_lnotab(code)

@unittest.expectedFailure # TODO: RUSTPYTHON; AssertionError: 1 != 2
@unittest.expectedFailure # TODO: RUSTPYTHON; LOAD_CONST count mismatch in long-tuple branch
def test_constant_folding_tuples_of_constants(self):
for line, elem in (
('a = 1,2,3', (1, 2, 3)),
Expand Down Expand Up @@ -873,7 +872,6 @@ def f():
self.assertInBytecode(f, 'LOAD_FAST_CHECK')
self.assertNotInBytecode(f, 'LOAD_FAST')

@unittest.expectedFailure # TODO: RUSTPYTHON; RETURN_VALUE
def test_load_fast_unknown_because_del(self):
def f():
x = 1
Expand Down Expand Up @@ -928,7 +926,6 @@ def f():
self.assertInBytecode(f, 'LOAD_FAST_BORROW')
self.assertNotInBytecode(f, 'LOAD_FAST_CHECK')

@unittest.expectedFailure # TODO: RUSTPYTHON; L5 to L6 -> L6 [1] lasti
def test_load_fast_unknown_after_error(self):
def f():
try:
Expand All @@ -940,7 +937,6 @@ def f():
# Assert that it doesn't occur in the LOAD_FAST_CHECK branch.
self.assertInBytecode(f, 'LOAD_FAST_CHECK')

@unittest.expectedFailure # TODO: RUSTPYTHON; L5 to L6 -> L6 [1] lasti
def test_load_fast_unknown_after_error_2(self):
def f():
try:
Expand Down
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