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authorKen Jin <kenjin@python.org>2024-03-01 19:40:04 (GMT)
committerGitHub <noreply@github.com>2024-03-01 19:40:04 (GMT)
commitff96b81d78c4a52fb1eb8384300af3dd0dd2db0d (patch)
treea3469d8fccfcdc41e7bda006c0e61d2d24f4226c /Python
parentb5949eac6220ee8002971b5e7026432ac7990c74 (diff)
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gh-115480: Type propagate _BINARY_OP_ADD_UNICODE (GH-115710)
Diffstat (limited to 'Python')
-rw-r--r--Python/optimizer_bytecodes.c16
-rw-r--r--Python/optimizer_cases.c.h19
2 files changed, 33 insertions, 2 deletions
diff --git a/Python/optimizer_bytecodes.c b/Python/optimizer_bytecodes.c
index 2b47381..786d884 100644
--- a/Python/optimizer_bytecodes.c
+++ b/Python/optimizer_bytecodes.c
@@ -254,6 +254,22 @@ dummy_func(void) {
}
}
+ op(_BINARY_OP_ADD_UNICODE, (left, right -- res)) {
+ if (sym_is_const(left) && sym_is_const(right) &&
+ sym_matches_type(left, &PyUnicode_Type) && sym_matches_type(right, &PyUnicode_Type)) {
+ PyObject *temp = PyUnicode_Concat(sym_get_const(left), sym_get_const(right));
+ if (temp == NULL) {
+ goto error;
+ }
+ res = sym_new_const(ctx, temp);
+ Py_DECREF(temp);
+ OUT_OF_SPACE_IF_NULL(res);
+ }
+ else {
+ OUT_OF_SPACE_IF_NULL(res = sym_new_type(ctx, &PyUnicode_Type));
+ }
+ }
+
op(_TO_BOOL, (value -- res)) {
(void)value;
res = sym_new_type(ctx, &PyBool_Type);
diff --git a/Python/optimizer_cases.c.h b/Python/optimizer_cases.c.h
index 9d7ebb8..6d3488f 100644
--- a/Python/optimizer_cases.c.h
+++ b/Python/optimizer_cases.c.h
@@ -446,9 +446,24 @@
}
case _BINARY_OP_ADD_UNICODE: {
+ _Py_UopsSymbol *right;
+ _Py_UopsSymbol *left;
_Py_UopsSymbol *res;
- res = sym_new_unknown(ctx);
- if (res == NULL) goto out_of_space;
+ right = stack_pointer[-1];
+ left = stack_pointer[-2];
+ if (sym_is_const(left) && sym_is_const(right) &&
+ sym_matches_type(left, &PyUnicode_Type) && sym_matches_type(right, &PyUnicode_Type)) {
+ PyObject *temp = PyUnicode_Concat(sym_get_const(left), sym_get_const(right));
+ if (temp == NULL) {
+ goto error;
+ }
+ res = sym_new_const(ctx, temp);
+ Py_DECREF(temp);
+ OUT_OF_SPACE_IF_NULL(res);
+ }
+ else {
+ OUT_OF_SPACE_IF_NULL(res = sym_new_type(ctx, &PyUnicode_Type));
+ }
stack_pointer[-2] = res;
stack_pointer += -1;
break;