gh-144388: Add new uop _RETURN_VALUE_HEAP_SAFE to avoid refcount operation
#144414
+1,032
−903
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cocolato
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Fidget-Spinner,
markshannon,
savannahostrowski and
tomasr8
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This adds a JIT optimization that avoids unnecessary reference count operations in
RETURN_VALUEwhen the return value is already heap-safe in non generator functions.