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gh-144540: Eliminate `_MAKE_HEAP_FUNCTION` for owned references by Sacul0457 · Pull Request #146320 · python/cpython · GitHub

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gh-144540: Eliminate _MAKE_HEAP_FUNCTION for owned references #146320

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gh-144540: Eliminate _MAKE_HEAP_FUNCTION for owned references #146320

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4 changes: 2 additions & 2 deletions Lib/test/test_capi/test_opt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1352,7 +1352,7 @@ def testfunc(n):
self.assertNotIn("_MAKE_HEAP_SAFE", uops)
self.assertIn("_YIELD_VALUE", uops)

def test_make_heap_safe_not_optimized_for_owned(self):
def test_make_heap_safe_optimized_owned(self):
def returns_owned(x):
return x + 1
def testfunc(n):
Expand All @@ -1364,7 +1364,7 @@ def testfunc(n):
self.assertEqual(res, TIER2_THRESHOLD)
self.assertIsNotNone(ex)
uops = get_opnames(ex)
self.assertIn("_MAKE_HEAP_SAFE", uops)
self.assertNotIn("_MAKE_HEAP_SAFE", uops)
self.assertIn("_RETURN_VALUE", uops)

def test_for_iter(self):
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2 changes: 1 addition & 1 deletion Python/optimizer_bytecodes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -90,7 +90,7 @@ dummy_func(void) {

op(_MAKE_HEAP_SAFE, (value -- value)) {
// eliminate _MAKE_HEAP_SAFE when we *know* the value is immortal
if (sym_is_immortal(PyJitRef_Unwrap(value))) {
if (sym_is_immortal(PyJitRef_Unwrap(value)) || !PyJitRef_IsBorrowed(value)) {
ADD_OP(_NOP, 0, 0);
}
value = PyJitRef_StripBorrowInfo(value);
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2 changes: 1 addition & 1 deletion Python/optimizer_cases.c.h
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