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gh-135474: Specialize arithmetic only on compact ints (GH-135479)

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Specialize arithmetic only on compact ints. This also makes int operations non-escaping in the JIT and in tier 1.
This commit is contained in:
Ken Jin 2025-06-14 17:13:32 +08:00 • committed by GitHub
parent c8319a3fea
commit 7b15873ed0
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
12 changed files with 81 additions and 155 deletions
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9
Python/bytecodes.c
View file

@ -582,9 +582,10 @@ dummy_func(
PyObject *right_o = PyStackRef_AsPyObjectBorrow(right);
assert(PyLong_CheckExact(left_o));
assert(PyLong_CheckExact(right_o));
DEOPT_IF(!_PyLong_BothAreCompact((PyLongObject *)left_o, (PyLongObject *)right_o));
STAT_INC(BINARY_OP, hit);
PyObject *res_o = _PyLong_Multiply((PyLongObject *)left_o, (PyLongObject *)right_o);
PyObject *res_o = _PyCompactLong_Multiply((PyLongObject *)left_o, (PyLongObject *)right_o);
PyStackRef_CLOSE_SPECIALIZED(right, _PyLong_ExactDealloc);
PyStackRef_CLOSE_SPECIALIZED(left, _PyLong_ExactDealloc);
INPUTS_DEAD();
@ -597,9 +598,10 @@ dummy_func(
PyObject *right_o = PyStackRef_AsPyObjectBorrow(right);
assert(PyLong_CheckExact(left_o));
assert(PyLong_CheckExact(right_o));
DEOPT_IF(!_PyLong_BothAreCompact((PyLongObject *)left_o, (PyLongObject *)right_o));
STAT_INC(BINARY_OP, hit);
PyObject *res_o = _PyLong_Add((PyLongObject *)left_o, (PyLongObject *)right_o);
PyObject *res_o = _PyCompactLong_Add((PyLongObject *)left_o, (PyLongObject *)right_o);
PyStackRef_CLOSE_SPECIALIZED(right, _PyLong_ExactDealloc);
PyStackRef_CLOSE_SPECIALIZED(left, _PyLong_ExactDealloc);
INPUTS_DEAD();
@ -612,9 +614,10 @@ dummy_func(
PyObject *right_o = PyStackRef_AsPyObjectBorrow(right);
assert(PyLong_CheckExact(left_o));
assert(PyLong_CheckExact(right_o));
DEOPT_IF(!_PyLong_BothAreCompact((PyLongObject *)left_o, (PyLongObject *)right_o));
STAT_INC(BINARY_OP, hit);
PyObject *res_o = _PyLong_Subtract((PyLongObject *)left_o, (PyLongObject *)right_o);
PyObject *res_o = _PyCompactLong_Subtract((PyLongObject *)left_o, (PyLongObject *)right_o);
PyStackRef_CLOSE_SPECIALIZED(right, _PyLong_ExactDealloc);
PyStackRef_CLOSE_SPECIALIZED(left, _PyLong_ExactDealloc);
INPUTS_DEAD();

24
Python/executor_cases.c.h generated
View file

@ -880,10 +880,12 @@
PyObject *right_o = PyStackRef_AsPyObjectBorrow(right);
assert(PyLong_CheckExact(left_o));
assert(PyLong_CheckExact(right_o));
if (!_PyLong_BothAreCompact((PyLongObject *)left_o, (PyLongObject *)right_o)) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
STAT_INC(BINARY_OP, hit);
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *res_o = _PyLong_Multiply((PyLongObject *)left_o, (PyLongObject *)right_o);
stack_pointer = _PyFrame_GetStackPointer(frame);
PyObject *res_o = _PyCompactLong_Multiply((PyLongObject *)left_o, (PyLongObject *)right_o);
PyStackRef_CLOSE_SPECIALIZED(right, _PyLong_ExactDealloc);
PyStackRef_CLOSE_SPECIALIZED(left, _PyLong_ExactDealloc);
if (res_o == NULL) {
@ -908,10 +910,12 @@
PyObject *right_o = PyStackRef_AsPyObjectBorrow(right);
assert(PyLong_CheckExact(left_o));
assert(PyLong_CheckExact(right_o));
if (!_PyLong_BothAreCompact((PyLongObject *)left_o, (PyLongObject *)right_o)) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
STAT_INC(BINARY_OP, hit);
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *res_o = _PyLong_Add((PyLongObject *)left_o, (PyLongObject *)right_o);
stack_pointer = _PyFrame_GetStackPointer(frame);
PyObject *res_o = _PyCompactLong_Add((PyLongObject *)left_o, (PyLongObject *)right_o);
PyStackRef_CLOSE_SPECIALIZED(right, _PyLong_ExactDealloc);
PyStackRef_CLOSE_SPECIALIZED(left, _PyLong_ExactDealloc);
if (res_o == NULL) {
@ -936,10 +940,12 @@
PyObject *right_o = PyStackRef_AsPyObjectBorrow(right);
assert(PyLong_CheckExact(left_o));
assert(PyLong_CheckExact(right_o));
if (!_PyLong_BothAreCompact((PyLongObject *)left_o, (PyLongObject *)right_o)) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
STAT_INC(BINARY_OP, hit);
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *res_o = _PyLong_Subtract((PyLongObject *)left_o, (PyLongObject *)right_o);
stack_pointer = _PyFrame_GetStackPointer(frame);
PyObject *res_o = _PyCompactLong_Subtract((PyLongObject *)left_o, (PyLongObject *)right_o);
PyStackRef_CLOSE_SPECIALIZED(right, _PyLong_ExactDealloc);
PyStackRef_CLOSE_SPECIALIZED(left, _PyLong_ExactDealloc);
if (res_o == NULL) {

27
Python/generated_cases.c.h generated
View file

@ -182,10 +182,13 @@
PyObject *right_o = PyStackRef_AsPyObjectBorrow(right);
assert(PyLong_CheckExact(left_o));
assert(PyLong_CheckExact(right_o));
if (!_PyLong_BothAreCompact((PyLongObject *)left_o, (PyLongObject *)right_o)) {
UPDATE_MISS_STATS(BINARY_OP);
assert(_PyOpcode_Deopt[opcode] == (BINARY_OP));
JUMP_TO_PREDICTED(BINARY_OP);
}
STAT_INC(BINARY_OP, hit);
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *res_o = _PyLong_Add((PyLongObject *)left_o, (PyLongObject *)right_o);
stack_pointer = _PyFrame_GetStackPointer(frame);
PyObject *res_o = _PyCompactLong_Add((PyLongObject *)left_o, (PyLongObject *)right_o);
PyStackRef_CLOSE_SPECIALIZED(right, _PyLong_ExactDealloc);
PyStackRef_CLOSE_SPECIALIZED(left, _PyLong_ExactDealloc);
if (res_o == NULL) {
@ -507,10 +510,13 @@
PyObject *right_o = PyStackRef_AsPyObjectBorrow(right);
assert(PyLong_CheckExact(left_o));
assert(PyLong_CheckExact(right_o));
if (!_PyLong_BothAreCompact((PyLongObject *)left_o, (PyLongObject *)right_o)) {
UPDATE_MISS_STATS(BINARY_OP);
assert(_PyOpcode_Deopt[opcode] == (BINARY_OP));
JUMP_TO_PREDICTED(BINARY_OP);
}
STAT_INC(BINARY_OP, hit);
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *res_o = _PyLong_Multiply((PyLongObject *)left_o, (PyLongObject *)right_o);
stack_pointer = _PyFrame_GetStackPointer(frame);
PyObject *res_o = _PyCompactLong_Multiply((PyLongObject *)left_o, (PyLongObject *)right_o);
PyStackRef_CLOSE_SPECIALIZED(right, _PyLong_ExactDealloc);
PyStackRef_CLOSE_SPECIALIZED(left, _PyLong_ExactDealloc);
if (res_o == NULL) {
@ -1088,10 +1094,13 @@
PyObject *right_o = PyStackRef_AsPyObjectBorrow(right);
assert(PyLong_CheckExact(left_o));
assert(PyLong_CheckExact(right_o));
if (!_PyLong_BothAreCompact((PyLongObject *)left_o, (PyLongObject *)right_o)) {
UPDATE_MISS_STATS(BINARY_OP);
assert(_PyOpcode_Deopt[opcode] == (BINARY_OP));
JUMP_TO_PREDICTED(BINARY_OP);
}
STAT_INC(BINARY_OP, hit);
_PyFrame_SetStackPointer(frame, stack_pointer);
PyObject *res_o = _PyLong_Subtract((PyLongObject *)left_o, (PyLongObject *)right_o);
stack_pointer = _PyFrame_GetStackPointer(frame);
PyObject *res_o = _PyCompactLong_Subtract((PyLongObject *)left_o, (PyLongObject *)right_o);
PyStackRef_CLOSE_SPECIALIZED(right, _PyLong_ExactDealloc);
PyStackRef_CLOSE_SPECIALIZED(left, _PyLong_ExactDealloc);
if (res_o == NULL) {

51
Python/optimizer_bytecodes.c
View file

@ -222,60 +222,15 @@ dummy_func(void) {
}
op(_BINARY_OP_ADD_INT, (left, right -- res)) {
if (sym_is_const(ctx, left) && sym_is_const(ctx, right)) {
assert(PyLong_CheckExact(sym_get_const(ctx, left)));
assert(PyLong_CheckExact(sym_get_const(ctx, right)));
PyObject *temp = _PyLong_Add((PyLongObject *)sym_get_const(ctx, left),
(PyLongObject *)sym_get_const(ctx, right));
if (temp == NULL) {
goto error;
}
res = sym_new_const(ctx, temp);
Py_DECREF(temp);
// TODO gh-115506:
// replace opcode with constant propagated one and add tests!
}
else {
res = sym_new_type(ctx, &PyLong_Type);
}
res = sym_new_type(ctx, &PyLong_Type);
}
op(_BINARY_OP_SUBTRACT_INT, (left, right -- res)) {
if (sym_is_const(ctx, left) && sym_is_const(ctx, right)) {
assert(PyLong_CheckExact(sym_get_const(ctx, left)));
assert(PyLong_CheckExact(sym_get_const(ctx, right)));
PyObject *temp = _PyLong_Subtract((PyLongObject *)sym_get_const(ctx, left),
(PyLongObject *)sym_get_const(ctx, right));
if (temp == NULL) {
goto error;
}
res = sym_new_const(ctx, temp);
Py_DECREF(temp);
// TODO gh-115506:
// replace opcode with constant propagated one and add tests!
}
else {
res = sym_new_type(ctx, &PyLong_Type);
}
res = sym_new_type(ctx, &PyLong_Type);
}
op(_BINARY_OP_MULTIPLY_INT, (left, right -- res)) {
if (sym_is_const(ctx, left) && sym_is_const(ctx, right)) {
assert(PyLong_CheckExact(sym_get_const(ctx, left)));
assert(PyLong_CheckExact(sym_get_const(ctx, right)));
PyObject *temp = _PyLong_Multiply((PyLongObject *)sym_get_const(ctx, left),
(PyLongObject *)sym_get_const(ctx, right));
if (temp == NULL) {
goto error;
}
res = sym_new_const(ctx, temp);
Py_DECREF(temp);
// TODO gh-115506:
// replace opcode with constant propagated one and add tests!
}
else {
res = sym_new_type(ctx, &PyLong_Type);
}
res = sym_new_type(ctx, &PyLong_Type);
}
op(_BINARY_OP_ADD_FLOAT, (left, right -- res)) {

81
Python/optimizer_cases.c.h generated
View file

@ -319,86 +319,29 @@
}
case _BINARY_OP_MULTIPLY_INT: {
JitOptSymbol *right;
JitOptSymbol *left;
JitOptSymbol *res;
right = stack_pointer[-1];
left = stack_pointer[-2];
if (sym_is_const(ctx, left) && sym_is_const(ctx, right)) {
assert(PyLong_CheckExact(sym_get_const(ctx, left)));
assert(PyLong_CheckExact(sym_get_const(ctx, right)));
PyObject *temp = _PyLong_Multiply((PyLongObject *)sym_get_const(ctx, left),
(PyLongObject *)sym_get_const(ctx, right));
if (temp == NULL) {
goto error;
}
res = sym_new_const(ctx, temp);
stack_pointer[-2] = res;
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
Py_DECREF(temp);
}
else {
res = sym_new_type(ctx, &PyLong_Type);
stack_pointer += -1;
}
stack_pointer[-1] = res;
res = sym_new_type(ctx, &PyLong_Type);
stack_pointer[-2] = res;
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
break;
}
case _BINARY_OP_ADD_INT: {
JitOptSymbol *right;
JitOptSymbol *left;
JitOptSymbol *res;
right = stack_pointer[-1];
left = stack_pointer[-2];
if (sym_is_const(ctx, left) && sym_is_const(ctx, right)) {
assert(PyLong_CheckExact(sym_get_const(ctx, left)));
assert(PyLong_CheckExact(sym_get_const(ctx, right)));
PyObject *temp = _PyLong_Add((PyLongObject *)sym_get_const(ctx, left),
(PyLongObject *)sym_get_const(ctx, right));
if (temp == NULL) {
goto error;
}
res = sym_new_const(ctx, temp);
stack_pointer[-2] = res;
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
Py_DECREF(temp);
}
else {
res = sym_new_type(ctx, &PyLong_Type);
stack_pointer += -1;
}
stack_pointer[-1] = res;
res = sym_new_type(ctx, &PyLong_Type);
stack_pointer[-2] = res;
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
break;
}
case _BINARY_OP_SUBTRACT_INT: {
JitOptSymbol *right;
JitOptSymbol *left;
JitOptSymbol *res;
right = stack_pointer[-1];
left = stack_pointer[-2];
if (sym_is_const(ctx, left) && sym_is_const(ctx, right)) {
assert(PyLong_CheckExact(sym_get_const(ctx, left)));
assert(PyLong_CheckExact(sym_get_const(ctx, right)));
PyObject *temp = _PyLong_Subtract((PyLongObject *)sym_get_const(ctx, left),
(PyLongObject *)sym_get_const(ctx, right));
if (temp == NULL) {
goto error;
}
res = sym_new_const(ctx, temp);
stack_pointer[-2] = res;
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
Py_DECREF(temp);
}
else {
res = sym_new_type(ctx, &PyLong_Type);
stack_pointer += -1;
}
stack_pointer[-1] = res;
res = sym_new_type(ctx, &PyLong_Type);
stack_pointer[-2] = res;
stack_pointer += -1;
assert(WITHIN_STACK_BOUNDS());
break;
}