https://github.com/python/cpython/commit/b150b6aca7b17efe1bb13c3058d61cdefb83237e
commit: b150b6aca7b17efe1bb13c3058d61cdefb83237e
branch: main
author: Noam Cohen <[email protected]>
committer: Fidget-Spinner <[email protected]>
date: 2025-06-09T18:33:18+08:00
summary:
gh-131798: Optimize `_UNARY_INVERT` (GH-135222)
files:
A
Misc/NEWS.d/next/Core_and_Builtins/2025-06-06-01-09-44.gh-issue-131798.1SuxO9.rst
M Lib/test/test_capi/test_opt.py
M Python/optimizer_bytecodes.c
M Python/optimizer_cases.c.h
diff --git a/Lib/test/test_capi/test_opt.py b/Lib/test/test_capi/test_opt.py
index 8a3819dabe44ce..bf22ef2a5922e7 100644
--- a/Lib/test/test_capi/test_opt.py
+++ b/Lib/test/test_capi/test_opt.py
@@ -2275,6 +2275,21 @@ def f(n):
self.assertIn("_UNPACK_SEQUENCE_TWO_TUPLE", uops)
self.assertNotIn("_GUARD_TOS_TUPLE", uops)
+ def test_unary_invert_long_type(self):
+ def testfunc(n):
+ for _ in range(n):
+ a = 9397
+ x = ~a + ~a
+
+ testfunc(TIER2_THRESHOLD)
+
+ ex = get_first_executor(testfunc)
+ self.assertIsNotNone(ex)
+ uops = get_opnames(ex)
+
+ self.assertNotIn("_GUARD_TOS_INT", uops)
+ self.assertNotIn("_GUARD_NOS_INT", uops)
+
def global_identity(x):
return x
diff --git
a/Misc/NEWS.d/next/Core_and_Builtins/2025-06-06-01-09-44.gh-issue-131798.1SuxO9.rst
b/Misc/NEWS.d/next/Core_and_Builtins/2025-06-06-01-09-44.gh-issue-131798.1SuxO9.rst
new file mode 100644
index 00000000000000..a377526230659f
--- /dev/null
+++
b/Misc/NEWS.d/next/Core_and_Builtins/2025-06-06-01-09-44.gh-issue-131798.1SuxO9.rst
@@ -0,0 +1 @@
+Optimize ``_UNARY_INVERT`` in JIT-compiled code.
diff --git a/Python/optimizer_bytecodes.c b/Python/optimizer_bytecodes.c
index fbf4dfd3db629c..a9d5e92ca02a59 100644
--- a/Python/optimizer_bytecodes.c
+++ b/Python/optimizer_bytecodes.c
@@ -467,6 +467,15 @@ dummy_func(void) {
res = sym_new_truthiness(ctx, value, false);
}
+ op(_UNARY_INVERT, (value -- res)) {
+ if (sym_matches_type(value, &PyLong_Type)) {
+ res = sym_new_type(ctx, &PyLong_Type);
+ }
+ else {
+ res = sym_new_not_null(ctx);
+ }
+ }
+
op(_COMPARE_OP, (left, right -- res)) {
if (oparg & 16) {
res = sym_new_type(ctx, &PyBool_Type);
diff --git a/Python/optimizer_cases.c.h b/Python/optimizer_cases.c.h
index b42f47c75eaf50..4780e492f61d74 100644
--- a/Python/optimizer_cases.c.h
+++ b/Python/optimizer_cases.c.h
@@ -285,8 +285,15 @@
}
case _UNARY_INVERT: {
+ JitOptSymbol *value;
JitOptSymbol *res;
- res = sym_new_not_null(ctx);
+ value = stack_pointer[-1];
+ if (sym_matches_type(value, &PyLong_Type)) {
+ res = sym_new_type(ctx, &PyLong_Type);
+ }
+ else {
+ res = sym_new_not_null(ctx);
+ }
stack_pointer[-1] = res;
break;
}
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