https://github.com/python/cpython/commit/a3a611b0429289d5531b90e0a95793ab5a61d967
commit: a3a611b0429289d5531b90e0a95793ab5a61d967
branch: main
author: Ken Jin <[email protected]>
committer: Fidget-Spinner <[email protected]>
date: 2025-12-12T14:04:11Z
summary:
gh-134584: Revert partially GH-135860 (GH-142620)
files:
M Include/internal/pycore_opcode_metadata.h
M Include/internal/pycore_uop_ids.h
M Include/internal/pycore_uop_metadata.h
M Lib/test/test_capi/test_opt.py
M Python/bytecodes.c
M Python/executor_cases.c.h
M Python/generated_cases.c.h
M Python/opcode_targets.h
M Python/optimizer_bytecodes.c
M Python/optimizer_cases.c.h
diff --git a/Include/internal/pycore_opcode_metadata.h
b/Include/internal/pycore_opcode_metadata.h
index 35659de22b799d..13e58721ebee9e 100644
--- a/Include/internal/pycore_opcode_metadata.h
+++ b/Include/internal/pycore_opcode_metadata.h
@@ -1376,7 +1376,7 @@ _PyOpcode_macro_expansion[256] = {
[CALL_PY_EXACT_ARGS] = { .nuops = 8, .uops = { { _CHECK_PEP_523,
OPARG_SIMPLE, 1 }, { _CHECK_FUNCTION_VERSION, 2, 1 }, {
_CHECK_FUNCTION_EXACT_ARGS, OPARG_SIMPLE, 3 }, { _CHECK_STACK_SPACE,
OPARG_SIMPLE, 3 }, { _CHECK_RECURSION_REMAINING, OPARG_SIMPLE, 3 }, {
_INIT_CALL_PY_EXACT_ARGS, OPARG_SIMPLE, 3 }, { _SAVE_RETURN_OFFSET,
OPARG_SAVE_RETURN_OFFSET, 3 }, { _PUSH_FRAME, OPARG_SIMPLE, 3 } } },
[CALL_PY_GENERAL] = { .nuops = 6, .uops = { { _CHECK_PEP_523,
OPARG_SIMPLE, 1 }, { _CHECK_FUNCTION_VERSION, 2, 1 }, {
_CHECK_RECURSION_REMAINING, OPARG_SIMPLE, 3 }, { _PY_FRAME_GENERAL,
OPARG_SIMPLE, 3 }, { _SAVE_RETURN_OFFSET, OPARG_SAVE_RETURN_OFFSET, 3 }, {
_PUSH_FRAME, OPARG_SIMPLE, 3 } } },
[CALL_STR_1] = { .nuops = 4, .uops = { { _GUARD_NOS_NULL, OPARG_SIMPLE, 3
}, { _GUARD_CALLABLE_STR_1, OPARG_SIMPLE, 3 }, { _CALL_STR_1, OPARG_SIMPLE, 3
}, { _CHECK_PERIODIC_AT_END, OPARG_REPLACED, 3 } } },
- [CALL_TUPLE_1] = { .nuops = 5, .uops = { { _GUARD_NOS_NULL, OPARG_SIMPLE,
3 }, { _GUARD_CALLABLE_TUPLE_1, OPARG_SIMPLE, 3 }, { _CALL_TUPLE_1,
OPARG_SIMPLE, 3 }, { _POP_TOP, OPARG_SIMPLE, 3 }, { _CHECK_PERIODIC_AT_END,
OPARG_REPLACED, 3 } } },
+ [CALL_TUPLE_1] = { .nuops = 4, .uops = { { _GUARD_NOS_NULL, OPARG_SIMPLE,
3 }, { _GUARD_CALLABLE_TUPLE_1, OPARG_SIMPLE, 3 }, { _CALL_TUPLE_1,
OPARG_SIMPLE, 3 }, { _CHECK_PERIODIC_AT_END, OPARG_REPLACED, 3 } } },
[CALL_TYPE_1] = { .nuops = 3, .uops = { { _GUARD_NOS_NULL, OPARG_SIMPLE, 3
}, { _GUARD_CALLABLE_TYPE_1, OPARG_SIMPLE, 3 }, { _CALL_TYPE_1, OPARG_SIMPLE, 3
} } },
[CHECK_EG_MATCH] = { .nuops = 1, .uops = { { _CHECK_EG_MATCH,
OPARG_SIMPLE, 0 } } },
[CHECK_EXC_MATCH] = { .nuops = 1, .uops = { { _CHECK_EXC_MATCH,
OPARG_SIMPLE, 0 } } },
diff --git a/Include/internal/pycore_uop_ids.h
b/Include/internal/pycore_uop_ids.h
index ce1ad5a4c8a5f6..56928b06685270 100644
--- a/Include/internal/pycore_uop_ids.h
+++ b/Include/internal/pycore_uop_ids.h
@@ -439,7 +439,7 @@ extern "C" {
#define _CALL_METHOD_DESCRIPTOR_O_r01 632
#define _CALL_NON_PY_GENERAL_r01 633
#define _CALL_STR_1_r31 634
-#define _CALL_TUPLE_1_r32 635
+#define _CALL_TUPLE_1_r31 635
#define _CALL_TYPE_1_r31 636
#define _CHECK_AND_ALLOCATE_OBJECT_r00 637
#define _CHECK_ATTR_CLASS_r01 638
diff --git a/Include/internal/pycore_uop_metadata.h
b/Include/internal/pycore_uop_metadata.h
index 1e74588d3aa62e..2ae84bdee0df12 100644
--- a/Include/internal/pycore_uop_metadata.h
+++ b/Include/internal/pycore_uop_metadata.h
@@ -2543,7 +2543,7 @@ const _PyUopCachingInfo _PyUop_Caching[MAX_UOP_ID+1] = {
{ -1, -1, -1 },
{ -1, -1, -1 },
{ -1, -1, -1 },
- { 2, 0, _CALL_TUPLE_1_r32 },
+ { 1, 0, _CALL_TUPLE_1_r31 },
},
},
[_CHECK_AND_ALLOCATE_OBJECT] = {
@@ -3739,7 +3739,7 @@ const uint16_t _PyUop_Uncached[MAX_UOP_REGS_ID+1] = {
[_GUARD_CALLABLE_TUPLE_1_r13] = _GUARD_CALLABLE_TUPLE_1,
[_GUARD_CALLABLE_TUPLE_1_r23] = _GUARD_CALLABLE_TUPLE_1,
[_GUARD_CALLABLE_TUPLE_1_r33] = _GUARD_CALLABLE_TUPLE_1,
- [_CALL_TUPLE_1_r32] = _CALL_TUPLE_1,
+ [_CALL_TUPLE_1_r31] = _CALL_TUPLE_1,
[_CHECK_AND_ALLOCATE_OBJECT_r00] = _CHECK_AND_ALLOCATE_OBJECT,
[_CREATE_INIT_FRAME_r01] = _CREATE_INIT_FRAME,
[_EXIT_INIT_CHECK_r10] = _EXIT_INIT_CHECK,
@@ -4058,7 +4058,7 @@ const char *const _PyOpcode_uop_name[MAX_UOP_REGS_ID+1] =
{
[_CALL_STR_1] = "_CALL_STR_1",
[_CALL_STR_1_r31] = "_CALL_STR_1_r31",
[_CALL_TUPLE_1] = "_CALL_TUPLE_1",
- [_CALL_TUPLE_1_r32] = "_CALL_TUPLE_1_r32",
+ [_CALL_TUPLE_1_r31] = "_CALL_TUPLE_1_r31",
[_CALL_TYPE_1] = "_CALL_TYPE_1",
[_CALL_TYPE_1_r31] = "_CALL_TYPE_1_r31",
[_CHECK_AND_ALLOCATE_OBJECT] = "_CHECK_AND_ALLOCATE_OBJECT",
diff --git a/Lib/test/test_capi/test_opt.py b/Lib/test/test_capi/test_opt.py
index 0e7fd62c28a065..e512c08752a02a 100644
--- a/Lib/test/test_capi/test_opt.py
+++ b/Lib/test/test_capi/test_opt.py
@@ -1938,7 +1938,8 @@ def testfunc(n):
self.assertIsNotNone(ex)
uops = get_opnames(ex)
self.assertIn("_CALL_TUPLE_1", uops)
- self.assertIn("_POP_TOP_NOP", uops)
+ # Re-enable later gh-134584
+ # self.assertIn("_POP_TOP_NOP", uops)
def test_call_str_1(self):
def testfunc(n):
diff --git a/Python/bytecodes.c b/Python/bytecodes.c
index cb39a23d951077..3e7b7d5594f8f7 100644
--- a/Python/bytecodes.c
+++ b/Python/bytecodes.c
@@ -4068,13 +4068,13 @@ dummy_func(
DEOPT_IF(callable_o != (PyObject *)&PyTuple_Type);
}
- op(_CALL_TUPLE_1, (callable, null, arg -- res, a)) {
+ op(_CALL_TUPLE_1, (callable, null, arg -- res)) {
PyObject *arg_o = PyStackRef_AsPyObjectBorrow(arg);
assert(oparg == 1);
STAT_INC(CALL, hit);
PyObject *res_o = PySequence_Tuple(arg_o);
- a = arg;
+ PyStackRef_CLOSE(arg);
INPUTS_DEAD();
ERROR_IF(res_o == NULL);
res = PyStackRef_FromPyObjectSteal(res_o);
@@ -4086,7 +4086,6 @@ dummy_func(
_GUARD_NOS_NULL +
_GUARD_CALLABLE_TUPLE_1 +
_CALL_TUPLE_1 +
- POP_TOP +
_CHECK_PERIODIC_AT_END;
op(_CHECK_AND_ALLOCATE_OBJECT, (type_version/2, callable,
self_or_null, unused[oparg] -- callable, self_or_null, unused[oparg])) {
@@ -5454,12 +5453,6 @@ dummy_func(
}
}
- label(pop_3_error) {
- stack_pointer -= 3;
- assert(WITHIN_STACK_BOUNDS());
- goto error;
- }
-
label(pop_2_error) {
stack_pointer -= 2;
assert(WITHIN_STACK_BOUNDS());
diff --git a/Python/executor_cases.c.h b/Python/executor_cases.c.h
index 598fea4dfbf692..9c2bffb35abbfb 100644
--- a/Python/executor_cases.c.h
+++ b/Python/executor_cases.c.h
@@ -12888,12 +12888,11 @@
break;
}
- case _CALL_TUPLE_1_r32: {
+ case _CALL_TUPLE_1_r31: {
CHECK_CURRENT_CACHED_VALUES(3);
assert(WITHIN_STACK_BOUNDS_WITH_CACHE());
_PyStackRef arg;
_PyStackRef res;
- _PyStackRef a;
_PyStackRef _stack_item_0 = _tos_cache0;
_PyStackRef _stack_item_1 = _tos_cache1;
_PyStackRef _stack_item_2 = _tos_cache2;
@@ -12910,19 +12909,23 @@
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *res_o = PySequence_Tuple(arg_o);
stack_pointer = _PyFrame_GetStackPointer(frame);
- a = arg;
+ stack_pointer += -1;
+ ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
+ _PyFrame_SetStackPointer(frame, stack_pointer);
+ PyStackRef_CLOSE(arg);
+ stack_pointer = _PyFrame_GetStackPointer(frame);
if (res_o == NULL) {
- stack_pointer += -3;
+ stack_pointer += -2;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
SET_CURRENT_CACHED_VALUES(0);
JUMP_TO_ERROR();
}
res = PyStackRef_FromPyObjectSteal(res_o);
- _tos_cache1 = a;
_tos_cache0 = res;
+ _tos_cache1 = PyStackRef_ZERO_BITS;
_tos_cache2 = PyStackRef_ZERO_BITS;
- SET_CURRENT_CACHED_VALUES(2);
- stack_pointer += -3;
+ SET_CURRENT_CACHED_VALUES(1);
+ stack_pointer += -2;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
assert(WITHIN_STACK_BOUNDS_WITH_CACHE());
break;
diff --git a/Python/generated_cases.c.h b/Python/generated_cases.c.h
index a0e6fd2d7cba27..e72c621f10d340 100644
--- a/Python/generated_cases.c.h
+++ b/Python/generated_cases.c.h
@@ -4040,8 +4040,6 @@
_PyStackRef callable;
_PyStackRef arg;
_PyStackRef res;
- _PyStackRef a;
- _PyStackRef value;
/* Skip 1 cache entry */
/* Skip 2 cache entries */
// _GUARD_NOS_NULL
@@ -4072,24 +4070,21 @@
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *res_o = PySequence_Tuple(arg_o);
stack_pointer = _PyFrame_GetStackPointer(frame);
- a = arg;
- if (res_o == NULL) {
- JUMP_TO_LABEL(pop_3_error);
- }
- res = PyStackRef_FromPyObjectSteal(res_o);
- }
- // _POP_TOP
- {
- value = a;
- stack_pointer[-3] = res;
- stack_pointer += -2;
+ stack_pointer += -1;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
_PyFrame_SetStackPointer(frame, stack_pointer);
- PyStackRef_XCLOSE(value);
+ PyStackRef_CLOSE(arg);
stack_pointer = _PyFrame_GetStackPointer(frame);
+ if (res_o == NULL) {
+ JUMP_TO_LABEL(pop_2_error);
+ }
+ res = PyStackRef_FromPyObjectSteal(res_o);
}
// _CHECK_PERIODIC_AT_END
{
+ stack_pointer[-2] = res;
+ stack_pointer += -1;
+ ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
_PyFrame_SetStackPointer(frame, stack_pointer);
int err = check_periodics(tstate);
stack_pointer = _PyFrame_GetStackPointer(frame);
@@ -11863,13 +11858,6 @@ JUMP_TO_LABEL(error);
#endif /* _Py_TAIL_CALL_INTERP */
/* BEGIN LABELS */
- LABEL(pop_3_error)
- {
- stack_pointer -= 3;
- assert(WITHIN_STACK_BOUNDS());
- JUMP_TO_LABEL(error);
- }
-
LABEL(pop_2_error)
{
stack_pointer -= 2;
diff --git a/Python/opcode_targets.h b/Python/opcode_targets.h
index 1a8a4392187eca..b2fa7d01e8f6c2 100644
--- a/Python/opcode_targets.h
+++ b/Python/opcode_targets.h
@@ -522,7 +522,6 @@ static py_tail_call_funcptr
instruction_funcptr_handler_table[256];
static py_tail_call_funcptr instruction_funcptr_tracing_table[256];
-Py_PRESERVE_NONE_CC static PyObject *_TAIL_CALL_pop_3_error(TAIL_CALL_PARAMS);
Py_PRESERVE_NONE_CC static PyObject *_TAIL_CALL_pop_2_error(TAIL_CALL_PARAMS);
Py_PRESERVE_NONE_CC static PyObject *_TAIL_CALL_pop_1_error(TAIL_CALL_PARAMS);
Py_PRESERVE_NONE_CC static PyObject *_TAIL_CALL_error(TAIL_CALL_PARAMS);
diff --git a/Python/optimizer_bytecodes.c b/Python/optimizer_bytecodes.c
index 9e767464500d45..61f2dd1e454148 100644
--- a/Python/optimizer_bytecodes.c
+++ b/Python/optimizer_bytecodes.c
@@ -1097,7 +1097,7 @@ dummy_func(void) {
}
}
- op(_CALL_TUPLE_1, (callable, null, arg -- res, a)) {
+ op(_CALL_TUPLE_1, (callable, null, arg -- res)) {
if (sym_matches_type(arg, &PyTuple_Type)) {
// e.g. tuple((1, 2)) or tuple(foo) where foo is known to be a
tuple
// Note: we must strip the reference information because it goes
@@ -1107,7 +1107,6 @@ dummy_func(void) {
else {
res = sym_new_type(ctx, &PyTuple_Type);
}
- a = arg;
}
op(_GUARD_TOS_LIST, (tos -- tos)) {
diff --git a/Python/optimizer_cases.c.h b/Python/optimizer_cases.c.h
index c3f122215ed7bd..7d95bce7679815 100644
--- a/Python/optimizer_cases.c.h
+++ b/Python/optimizer_cases.c.h
@@ -2882,7 +2882,6 @@
case _CALL_TUPLE_1: {
JitOptRef arg;
JitOptRef res;
- JitOptRef a;
arg = stack_pointer[-1];
if (sym_matches_type(arg, &PyTuple_Type)) {
res = PyJitRef_StripReferenceInfo(arg);
@@ -2890,11 +2889,9 @@
else {
res = sym_new_type(ctx, &PyTuple_Type);
}
- a = arg;
- CHECK_STACK_BOUNDS(-1);
+ CHECK_STACK_BOUNDS(-2);
stack_pointer[-3] = res;
- stack_pointer[-2] = a;
- stack_pointer += -1;
+ stack_pointer += -2;
ASSERT_WITHIN_STACK_BOUNDS(__FILE__, __LINE__);
break;
}
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