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gh-105775: Convert LOAD_CLOSURE to a pseudo-op (#106059)

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This enables super-instruction formation,
removal of checks for uninitialized variables,
and frees up an instruction.
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hms 2023-06-29 10:34:00 -06:00 • committed by GitHub
parent 3c70d467c1
commit 8bff940ad6
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16 changed files with 733 additions and 702 deletions
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38
Lib/test/test_compiler_assemble.py
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@ -70,3 +70,41 @@ class IsolatedAssembleTests(AssemblerTestCase):
]
expected = {(3, 4) : 3.5, (-100, 200) : 50, (10, 18) : 14}
self.assemble_test(insts, metadata, expected)
def test_expression_with_pseudo_instruction_load_closure(self):
def mod_two(x):
def inner():
return x
return inner() % 2
inner_code = mod_two.__code__.co_consts[1]
assert isinstance(inner_code, types.CodeType)
metadata = {
'filename' : 'mod_two.py',
'name' : 'mod_two',
'qualname' : 'nested.mod_two',
'cellvars' : {'x' : 0},
'consts': {None: 0, inner_code: 1, 2: 2},
'argcount' : 1,
'varnames' : {'x' : 0},
}
instructions = [
('RESUME', 0,),
('PUSH_NULL', 0, 1),
('LOAD_CLOSURE', 0, 1),
('BUILD_TUPLE', 1, 1),
('LOAD_CONST', 1, 1),
('MAKE_FUNCTION', 0, 2),
('SET_FUNCTION_ATTRIBUTE', 8, 2),
('CALL', 0, 2), # (lambda: x)()
('LOAD_CONST', 2, 2), # 2
('BINARY_OP', 6, 2), # %
('RETURN_VALUE', 0, 2)
]
expected = {(0,): 0, (1,): 1, (2,): 0, (120,): 0, (121,): 1}
self.assemble_test(instructions, metadata, expected)