diff options
| -rw-r--r-- | Lib/test/test_capi/test_misc.py | 4 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2023-08-28-22-22-15.gh-issue-108488.e8-fxg.rst | 1 | ||||
| -rw-r--r-- | Python/specialize.c | 4 |
3 files changed, 6 insertions, 3 deletions
diff --git a/Lib/test/test_capi/test_misc.py b/Lib/test/test_capi/test_misc.py index 1cd4c56..4148f15 100644 --- a/Lib/test/test_capi/test_misc.py +++ b/Lib/test/test_capi/test_misc.py @@ -2478,7 +2478,7 @@ class TestUops(unittest.TestCase): opt = _testinternalcapi.get_uop_optimizer() with temporary_optimizer(opt): - testfunc([1, 2, 3]) + testfunc(range(10)) ex = get_first_executor(testfunc) self.assertIsNotNone(ex) @@ -2493,7 +2493,7 @@ class TestUops(unittest.TestCase): opt = _testinternalcapi.get_uop_optimizer() with temporary_optimizer(opt): - testfunc([1, 2, 3]) + testfunc(range(10)) ex = get_first_executor(testfunc) self.assertIsNotNone(ex) diff --git a/Misc/NEWS.d/next/Core and Builtins/2023-08-28-22-22-15.gh-issue-108488.e8-fxg.rst b/Misc/NEWS.d/next/Core and Builtins/2023-08-28-22-22-15.gh-issue-108488.e8-fxg.rst new file mode 100644 index 0000000..f9d6f59 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2023-08-28-22-22-15.gh-issue-108488.e8-fxg.rst @@ -0,0 +1 @@ +Change the initialization of inline cache entries so that the cache entry for ``JUMP_BACKWARD`` is initialized to zero, instead of the ``adaptive_counter_warmup()`` value used for all other instructions. This counter, unique among instructions, counts up from zero. diff --git a/Python/specialize.c b/Python/specialize.c index a467f16..a794f14 100644 --- a/Python/specialize.c +++ b/Python/specialize.c @@ -302,7 +302,9 @@ _PyCode_Quicken(PyCodeObject *code) assert(opcode < MIN_INSTRUMENTED_OPCODE); int caches = _PyOpcode_Caches[opcode]; if (caches) { - instructions[i + 1].cache = adaptive_counter_warmup(); + // JUMP_BACKWARD counter counts up from 0 until it is > backedge_threshold + instructions[i + 1].cache = + opcode == JUMP_BACKWARD ? 0 : adaptive_counter_warmup(); i += caches; } } |