mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-07-07 19:35:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

GH-131798: Optimize away type(x) in the JIT when the result is known (GH-135194)

Browse source
This commit is contained in:
Tomas R. 2025-06-07 01:44:43 +02:00 • committed by GitHub
parent f00512db20
commit 46151648ca
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
4 changed files with 36 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

7
Python/optimizer_bytecodes.c
View file

@ -937,8 +937,11 @@ dummy_func(void) {
}
op(_CALL_TYPE_1, (unused, unused, arg -- res)) {
if (sym_has_type(arg)) {
res = sym_new_const(ctx, (PyObject *)sym_get_type(arg));
PyObject* type = (PyObject *)sym_get_type(arg);
if (type) {
res = sym_new_const(ctx, type);
REPLACE_OP(this_instr, _POP_CALL_ONE_LOAD_CONST_INLINE_BORROW, 0,
(uintptr_t)type);
}
else {
res = sym_new_not_null(ctx);

7
Python/optimizer_cases.c.h generated
View file

@ -2056,8 +2056,11 @@
JitOptSymbol *arg;
JitOptSymbol *res;
arg = stack_pointer[-1];
if (sym_has_type(arg)) {
res = sym_new_const(ctx, (PyObject *)sym_get_type(arg));
PyObject* type = (PyObject *)sym_get_type(arg);
if (type) {
res = sym_new_const(ctx, type);
REPLACE_OP(this_instr, _POP_CALL_ONE_LOAD_CONST_INLINE_BORROW, 0,
(uintptr_t)type);
}
else {
res = sym_new_not_null(ctx);