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Bytecode parity - exception (RustPython#7557)
* Fix exception handling: except* chaining, finally cleanup, RERAISE - Align except* bytecode chaining - Fix exception state model and finally handler cleanup - Fix RERAISE to only pop exception, preserve values below * Port IR optimization passes from flowgraph.c - BUILD_TUPLE n + UNPACK_SEQUENCE n elimination - Dead store elimination within basic blocks - apply_static_swaps for SWAP reduction * Add bytecode comparison and disassembly dump scripts - compare_bytecode.py: compare CPython vs RustPython bytecode output - dis_dump.py: extract disassembly in normalized JSON format
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8 files changed

Lines changed: 1724 additions & 205 deletions

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‎Lib/test/test_peepholer.py‎

Lines changed: 1 addition & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -144,7 +144,6 @@ def f():
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self.assertInBytecode(f, elem)
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self.check_lnotab(f)
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@unittest.expectedFailure # TODO: RUSTPYTHON
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def test_pack_unpack(self):
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for line, elem in (
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('a, = a,', 'LOAD_CONST',),
@@ -158,7 +157,7 @@ def test_pack_unpack(self):
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self.assertNotInBytecode(code, 'UNPACK_SEQUENCE')
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self.check_lnotab(code)
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161-
@unittest.expectedFailure # TODO: RUSTPYTHON; AssertionError: 1 != 2
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@unittest.expectedFailure # TODO: RUSTPYTHON; LOAD_CONST count mismatch in long-tuple branch
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def test_constant_folding_tuples_of_constants(self):
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for line, elem in (
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('a = 1,2,3', (1, 2, 3)),
@@ -873,7 +872,6 @@ def f():
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self.assertInBytecode(f, 'LOAD_FAST_CHECK')
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self.assertNotInBytecode(f, 'LOAD_FAST')
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@unittest.expectedFailure # TODO: RUSTPYTHON; RETURN_VALUE
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def test_load_fast_unknown_because_del(self):
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def f():
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x = 1
@@ -928,7 +926,6 @@ def f():
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self.assertInBytecode(f, 'LOAD_FAST_BORROW')
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self.assertNotInBytecode(f, 'LOAD_FAST_CHECK')
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@unittest.expectedFailure # TODO: RUSTPYTHON; L5 to L6 -> L6 [1] lasti
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def test_load_fast_unknown_after_error(self):
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def f():
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try:
@@ -940,7 +937,6 @@ def f():
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# Assert that it doesn't occur in the LOAD_FAST_CHECK branch.
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self.assertInBytecode(f, 'LOAD_FAST_CHECK')
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@unittest.expectedFailure # TODO: RUSTPYTHON; L5 to L6 -> L6 [1] lasti
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def test_load_fast_unknown_after_error_2(self):
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def f():
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try:

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