update definition of false variable for test case

python · brandtbucher · Mar 4, 2025 · Mar 3, 2025 · Mar 3, 2025 · Mar 3, 2025
commit daed0954dcba3dd333f5db44d4e3235580fa70e5
diff --git a/Lib/test/test_capi/test_opt.py b/Lib/test/test_capi/test_opt.py
@@ -1504,7 +1504,8 @@ def f(n):
            trace = []
            for i in range(n):
                # zero is always (int) 0, but we can only prove that it's a integer:
-                zero = i - i
+                false = i == TIER2_THRESHOLD # this will always be false, while hopefully still fooling optimizer improvements
+                zero = false + 0 # this should always set the variable zero equal to 0
                trace.append("A")
                if not zero:  # Kept.
                    trace.append("B")