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GH-131498: Another refactoring of the code generator #131827

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Merged
markshannon merged 18 commits into from
Mar 31, 2025
Merged

GH-131498: Another refactoring of the code generator #131827

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45199ae
Remove redundant attribute
markshannon Mar 24, 2025
d786146
Rename 'defined' attribute to 'in_local' to more accurately reflect h…
markshannon Mar 24, 2025
2b21bf9
Remove unused function
markshannon Mar 24, 2025
66f5826
Make death of variables explicit even for array variables.
markshannon Mar 24, 2025
5d6a9f8
Remove used 'peeks' attribute
markshannon Mar 24, 2025
6e2a189
Convert in_memory from boolean to stack offset
markshannon Mar 24, 2025
417c96d
Don't apply liveness analyis to optimizer generated code
markshannon Mar 25, 2025
05a4daa
Fix RETURN_VALUE in optimizer
markshannon Mar 25, 2025
b8c3a9e
Fix up type annotations
markshannon Mar 25, 2025
d81c7de
Fixup NULLing out array items during DECREF_INPUTS
markshannon Mar 26, 2025
af5f616
Cleanup errors
markshannon Mar 26, 2025
9238a67
Update test output to reflect fix
markshannon Mar 26, 2025
f80764f
Cases gen refactoring.
markshannon Mar 26, 2025
fbad220
Merge branch 'main' into code-gen-refactor-again
markshannon Mar 27, 2025
ba3979d
Add 'out' parameter to stack.pop
markshannon Mar 27, 2025
e38eab4
Don't declare unused variables and update test
markshannon Mar 30, 2025
e95d33b
Remove unreachable code
markshannon Mar 31, 2025
b7eb0bd
Handle negative numbers smaller than -9
markshannon Mar 31, 2025
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Fixup NULLing out array items during DECREF_INPUTS
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@markshannon
markshannon committed Mar 26, 2025
commit d81c7de752528ef0641bead68879fe9dc1f5b988
6 changes: 6 additions & 0 deletions Python/generated_cases.c.h
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7 changes: 5 additions & 2 deletions Tools/cases_generator/stack.py
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Original file line number Diff line number Diff line change
Expand Up @@ -264,6 +264,7 @@ def pop(self, var: StackItem) -> tuple[str, Local]:
defn = f"{var.name} = &stack_pointer[{self.top_offset.to_c()}];\n"
else:
defn = f"{var.name} = stack_pointer[{self.top_offset.to_c()}];\n"
popped.in_local = True
else:
defn = rename
return defn, popped
Expand Down Expand Up @@ -680,7 +681,7 @@ def close_variable(var: Local, overwrite: str) -> None:
if output is not None:
if output.is_array():
assert len(self.inputs) == 1
self.stack.pop(self.inputs[0].item)
self.stack.drop(self.inputs[0].item, False)
self.stack.push(output)
self.stack.flush(out)
close_variable(self.inputs[0], "")
Expand All @@ -699,7 +700,9 @@ def close_variable(var: Local, overwrite: str) -> None:
for input in reversed(self.inputs[1:]):
input.kill()
self.stack.drop(input.item, self.check_liveness)
self.stack.pop(self.inputs[0].item)
if output is None:
self.inputs[0].kill()
self.stack.drop(self.inputs[0].item, False)
output_in_place = self.outputs and output is self.outputs[0] and lowest.memory_offset is not None
if output_in_place:
output.memory_offset = lowest.memory_offset.copy() # type: ignore[union-attr]
Expand Down
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