#include "Python.h" #include "pycore_optimizer.h" #include "pycore_uops.h" #include "pycore_uop_ids.h" #include "internal/pycore_moduleobject.h" #define op(name, ...) /* NAME is ignored */ typedef struct _Py_UopsSymbol _Py_UopsSymbol; typedef struct _Py_UOpsContext _Py_UOpsContext; typedef struct _Py_UOpsAbstractFrame _Py_UOpsAbstractFrame; /* Shortened forms for convenience */ #define sym_is_not_null _Py_uop_sym_is_not_null #define sym_is_const _Py_uop_sym_is_const #define sym_get_const _Py_uop_sym_get_const #define sym_new_unknown _Py_uop_sym_new_unknown #define sym_new_not_null _Py_uop_sym_new_not_null #define sym_new_type _Py_uop_sym_new_type #define sym_is_null _Py_uop_sym_is_null #define sym_new_const _Py_uop_sym_new_const #define sym_new_null _Py_uop_sym_new_null #define sym_matches_type _Py_uop_sym_matches_type #define sym_matches_type_version _Py_uop_sym_matches_type_version #define sym_get_type _Py_uop_sym_get_type #define sym_has_type _Py_uop_sym_has_type #define sym_set_null(SYM) _Py_uop_sym_set_null(ctx, SYM) #define sym_set_non_null(SYM) _Py_uop_sym_set_non_null(ctx, SYM) #define sym_set_type(SYM, TYPE) _Py_uop_sym_set_type(ctx, SYM, TYPE) #define sym_set_type_version(SYM, VERSION) _Py_uop_sym_set_type_version(ctx, SYM, VERSION) #define sym_set_const(SYM, CNST) _Py_uop_sym_set_const(ctx, SYM, CNST) #define sym_is_bottom _Py_uop_sym_is_bottom #define frame_new _Py_uop_frame_new #define frame_pop _Py_uop_frame_pop extern int optimize_to_bool( _PyUOpInstruction *this_instr, _Py_UOpsContext *ctx, _Py_UopsSymbol *value, _Py_UopsSymbol **result_ptr); extern void eliminate_pop_guard(_PyUOpInstruction *this_instr, bool exit); extern PyCodeObject *get_code(_PyUOpInstruction *op); static int dummy_func(void) { PyCodeObject *co; int oparg; _Py_UopsSymbol *flag; _Py_UopsSymbol *left; _Py_UopsSymbol *right; _Py_UopsSymbol *value; _Py_UopsSymbol *res; _Py_UopsSymbol *iter; _Py_UopsSymbol *top; _Py_UopsSymbol *bottom; _Py_UOpsAbstractFrame *frame; _Py_UOpsAbstractFrame *new_frame; _Py_UOpsContext *ctx; _PyUOpInstruction *this_instr; _PyBloomFilter *dependencies; int modified; int curr_space; int max_space; _PyUOpInstruction *first_valid_check_stack; _PyUOpInstruction *corresponding_check_stack; // BEGIN BYTECODES // op(_LOAD_FAST_CHECK, (-- value)) { value = GETLOCAL(oparg); // We guarantee this will error - just bail and don't optimize it. if (sym_is_null(value)) { ctx->done = true; } } op(_LOAD_FAST, (-- value)) { value = GETLOCAL(oparg); } op(_LOAD_FAST_AND_CLEAR, (-- value)) { value = GETLOCAL(oparg); _Py_UopsSymbol *temp = sym_new_null(ctx); GETLOCAL(oparg) = temp; } op(_STORE_FAST, (value --)) { GETLOCAL(oparg) = value; } op(_PUSH_NULL, (-- res)) { res = sym_new_null(ctx); } op(_GUARD_BOTH_INT, (left, right -- left, right)) { if (sym_matches_type(left, &PyLong_Type)) { if (sym_matches_type(right, &PyLong_Type)) { REPLACE_OP(this_instr, _NOP, 0, 0); } else { REPLACE_OP(this_instr, _GUARD_TOS_INT, 0, 0); } } else { if (sym_matches_type(right, &PyLong_Type)) { REPLACE_OP(this_instr, _GUARD_NOS_INT, 0, 0); } } sym_set_type(left, &PyLong_Type); sym_set_type(right, &PyLong_Type); } op(_GUARD_TYPE_VERSION, (type_version/2, owner -- owner)) { assert(type_version); if (sym_matches_type_version(owner, type_version)) { REPLACE_OP(this_instr, _NOP, 0, 0); } else { // add watcher so that whenever the type changes we invalidate this PyTypeObject *type = _PyType_LookupByVersion(type_version); // if the type is null, it was not found in the cache (there was a conflict) // with the key, in which case we can't trust the version if (type) { // if the type version was set properly, then add a watcher // if it wasn't this means that the type version was previously set to something else // and we set the owner to bottom, so we don't need to add a watcher because we must have // already added one earlier. if (sym_set_type_version(owner, type_version)) { PyType_Watch(TYPE_WATCHER_ID, (PyObject *)type); _Py_BloomFilter_Add(dependencies, type); } } } } op(_GUARD_BOTH_FLOAT, (left, right -- left, right)) { if (sym_matches_type(left, &PyFloat_Type)) { if (sym_matches_type(right, &PyFloat_Type)) { REPLACE_OP(this_instr, _NOP, 0, 0); } else { REPLACE_OP(this_instr, _GUARD_TOS_FLOAT, 0, 0); } } else { if (sym_matches_type(right, &PyFloat_Type)) { REPLACE_OP(this_instr, _GUARD_NOS_FLOAT, 0, 0); } } sym_set_type(left, &PyFloat_Type); sym_set_type(right, &PyFloat_Type); } op(_GUARD_BOTH_UNICODE, (left, right -- left, right)) { if (sym_matches_type(left, &PyUnicode_Type) && sym_matches_type(right, &PyUnicode_Type)) { REPLACE_OP(this_instr, _NOP, 0 ,0); } sym_set_type(left, &PyUnicode_Type); sym_set_type(left, &PyUnicode_Type); } op(_BINARY_OP, (left, right -- res)) { PyTypeObject *ltype = sym_get_type(left); PyTypeObject *rtype = sym_get_type(right); if (ltype != NULL && (ltype == &PyLong_Type || ltype == &PyFloat_Type) && rtype != NULL && (rtype == &PyLong_Type || rtype == &PyFloat_Type)) { if (oparg != NB_TRUE_DIVIDE && oparg != NB_INPLACE_TRUE_DIVIDE && ltype == &PyLong_Type && rtype == &PyLong_Type) { /* If both inputs are ints and the op is not division the result is an int */ res = sym_new_type(ctx, &PyLong_Type); } else { /* For any other op combining ints/floats the result is a float */ res = sym_new_type(ctx, &PyFloat_Type); } } else { res = sym_new_unknown(ctx); } } op(_BINARY_OP_ADD_INT, (left, right -- res)) { if (sym_is_const(left) && sym_is_const(right) && sym_matches_type(left, &PyLong_Type) && sym_matches_type(right, &PyLong_Type)) { assert(PyLong_CheckExact(sym_get_const(left))); assert(PyLong_CheckExact(sym_get_const(right))); PyObject *temp = _PyLong_Add((PyLongObject *)sym_get_const(left), (PyLongObject *)sym_get_const(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); } } op(_BINARY_OP_SUBTRACT_INT, (left, right -- res)) { if (sym_is_const(left) && sym_is_const(right) && sym_matches_type(left, &PyLong_Type) && sym_matches_type(right, &PyLong_Type)) { assert(PyLong_CheckExact(sym_get_const(left))); assert(PyLong_CheckExact(sym_get_const(right))); PyObject *temp = _PyLong_Subtract((PyLongObject *)sym_get_const(left), (PyLongObject *)sym_get_const(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); } } op(_BINARY_OP_MULTIPLY_INT, (left, right -- res)) { if (sym_is_const(left) && sym_is_const(right) && sym_matches_type(left, &PyLong_Type) && sym_matches_type(right, &PyLong_Type)) { assert(PyLong_CheckExact(sym_get_const(left))); assert(PyLong_CheckExact(sym_get_const(right))); PyObject *temp = _PyLong_Multiply((PyLongObject *)sym_get_const(left), (PyLongObject *)sym_get_const(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); } } op(_BINARY_OP_ADD_FLOAT, (left, right -- res)) { if (sym_is_const(left) && sym_is_const(right) && sym_matches_type(left, &PyFloat_Type) && sym_matches_type(right, &PyFloat_Type)) { assert(PyFloat_CheckExact(sym_get_const(left))); assert(PyFloat_CheckExact(sym_get_const(right))); PyObject *temp = PyFloat_FromDouble( PyFloat_AS_DOUBLE(sym_get_const(left)) + PyFloat_AS_DOUBLE(sym_get_const(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 update tests! } else { res = sym_new_type(ctx, &PyFloat_Type); } } op(_BINARY_OP_SUBTRACT_FLOAT, (left, right -- res)) { if (sym_is_const(left) && sym_is_const(right) && sym_matches_type(left, &PyFloat_Type) && sym_matches_type(right, &PyFloat_Type)) { assert(PyFloat_CheckExact(sym_get_const(left))); assert(PyFloat_CheckExact(sym_get_const(right))); PyObject *temp = PyFloat_FromDouble( PyFloat_AS_DOUBLE(sym_get_const(left)) - PyFloat_AS_DOUBLE(sym_get_const(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 update tests! } else { res = sym_new_type(ctx, &PyFloat_Type); } } op(_BINARY_OP_MULTIPLY_FLOAT, (left, right -- res)) { if (sym_is_const(left) && sym_is_const(right) && sym_matches_type(left, &PyFloat_Type) && sym_matches_type(right, &PyFloat_Type)) { assert(PyFloat_CheckExact(sym_get_const(left))); assert(PyFloat_CheckExact(sym_get_const(right))); PyObject *temp = PyFloat_FromDouble( PyFloat_AS_DOUBLE(sym_get_const(left)) * PyFloat_AS_DOUBLE(sym_get_const(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 update tests! } else { res = sym_new_type(ctx, &PyFloat_Type); } } 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); } else { res = sym_new_type(ctx, &PyUnicode_Type); } } op(_BINARY_OP_INPLACE_ADD_UNICODE, (left, right -- )) { _Py_UopsSymbol *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); } else { res = sym_new_type(ctx, &PyUnicode_Type); } // _STORE_FAST: GETLOCAL(this_instr->operand0) = res; } op(_BINARY_SUBSCR_INIT_CALL, (container, sub, getitem -- new_frame: _Py_UOpsAbstractFrame *)) { (void)container; (void)sub; (void)getitem; new_frame = NULL; ctx->done = true; } op(_TO_BOOL, (value -- res)) { if (!optimize_to_bool(this_instr, ctx, value, &res)) { res = sym_new_type(ctx, &PyBool_Type); } } op(_TO_BOOL_BOOL, (value -- res)) { if (!optimize_to_bool(this_instr, ctx, value, &res)) { sym_set_type(value, &PyBool_Type); res = value; } } op(_TO_BOOL_INT, (value -- res)) { if (!optimize_to_bool(this_instr, ctx, value, &res)) { sym_set_type(value, &PyLong_Type); res = sym_new_type(ctx, &PyBool_Type); } } op(_TO_BOOL_LIST, (value -- res)) { if (!optimize_to_bool(this_instr, ctx, value, &res)) { sym_set_type(value, &PyList_Type); res = sym_new_type(ctx, &PyBool_Type); } } op(_TO_BOOL_NONE, (value -- res)) { if (!optimize_to_bool(this_instr, ctx, value, &res)) { sym_set_const(value, Py_None); res = sym_new_const(ctx, Py_False); } } op(_TO_BOOL_STR, (value -- res)) { if (!optimize_to_bool(this_instr, ctx, value, &res)) { res = sym_new_type(ctx, &PyBool_Type); sym_set_type(value, &PyUnicode_Type); } } op(_COMPARE_OP, (left, right -- res)) { (void)left; (void)right; if (oparg & 16) { res = sym_new_type(ctx, &PyBool_Type); } else { res = _Py_uop_sym_new_not_null(ctx); } } op(_COMPARE_OP_INT, (left, right -- res)) { (void)left; (void)right; res = sym_new_type(ctx, &PyBool_Type); } op(_COMPARE_OP_FLOAT, (left, right -- res)) { (void)left; (void)right; res = sym_new_type(ctx, &PyBool_Type); } op(_COMPARE_OP_STR, (left, right -- res)) { (void)left; (void)right; res = sym_new_type(ctx, &PyBool_Type); } op(_IS_OP, (left, right -- res)) { (void)left; (void)right; res = sym_new_type(ctx, &PyBool_Type); } op(_CONTAINS_OP, (left, right -- res)) { (void)left; (void)right; res = sym_new_type(ctx, &PyBool_Type); } op(_LOAD_CONST, (-- value)) { PyObject *val = PyTuple_GET_ITEM(co->co_consts, this_instr->oparg); int opcode = _Py_IsImmortal(val) ? _LOAD_CONST_INLINE_BORROW : _LOAD_CONST_INLINE; REPLACE_OP(this_instr, opcode, 0, (uintptr_t)val); value = sym_new_const(ctx, val); } op(_LOAD_CONST_IMMORTAL, (-- value)) { PyObject *val = PyTuple_GET_ITEM(co->co_consts, this_instr->oparg); REPLACE_OP(this_instr, _LOAD_CONST_INLINE_BORROW, 0, (uintptr_t)val); value = sym_new_const(ctx, val); } op(_LOAD_SMALL_INT, (-- value)) { PyObject *val = PyLong_FromLong(this_instr->oparg); value = sym_new_const(ctx, val); } op(_LOAD_CONST_INLINE, (ptr/4 -- value)) { value = sym_new_const(ctx, ptr); } op(_LOAD_CONST_INLINE_BORROW, (ptr/4 -- value)) { value = sym_new_const(ctx, ptr); } op(_LOAD_CONST_INLINE_WITH_NULL, (ptr/4 -- value, null)) { value = sym_new_const(ctx, ptr); null = sym_new_null(ctx); } op(_LOAD_CONST_INLINE_BORROW_WITH_NULL, (ptr/4 -- value, null)) { value = sym_new_const(ctx, ptr); null = sym_new_null(ctx); } op(_COPY, (bottom, unused[oparg-1] -- bottom, unused[oparg-1], top)) { assert(oparg > 0); top = bottom; } op(_SWAP, (bottom_in, unused[oparg-2], top_in -- top_out, unused[oparg-2], bottom_out)) { bottom_out = bottom_in; top_out = top_in; } op(_LOAD_ATTR_INSTANCE_VALUE, (offset/1, owner -- attr, null if (oparg & 1))) { attr = sym_new_not_null(ctx); null = sym_new_null(ctx); (void)offset; (void)owner; } op(_CHECK_ATTR_MODULE_PUSH_KEYS, (dict_version/2, owner -- owner, mod_keys)) { (void)dict_version; mod_keys = sym_new_not_null(ctx); if (sym_is_const(owner)) { PyObject *cnst = sym_get_const(owner); if (PyModule_CheckExact(cnst)) { PyModuleObject *mod = (PyModuleObject *)cnst; PyObject *dict = mod->md_dict; uint64_t watched_mutations = get_mutations(dict); if (watched_mutations < _Py_MAX_ALLOWED_GLOBALS_MODIFICATIONS) { PyDict_Watch(GLOBALS_WATCHER_ID, dict); _Py_BloomFilter_Add(dependencies, dict); this_instr->opcode = _NOP; } } } } op(_LOAD_ATTR, (owner -- attr, self_or_null if (oparg & 1))) { (void)owner; attr = sym_new_not_null(ctx); self_or_null = sym_new_unknown(ctx); } op(_LOAD_ATTR_MODULE_FROM_KEYS, (index/1, owner, mod_keys -- attr, null if (oparg & 1))) { (void)index; null = sym_new_null(ctx); attr = NULL; if (this_instr[-1].opcode == _NOP) { // Preceding _CHECK_ATTR_MODULE_PUSH_KEYS was removed: mod is const and dict is watched. assert(sym_is_const(owner)); PyModuleObject *mod = (PyModuleObject *)sym_get_const(owner); assert(PyModule_CheckExact(mod)); PyObject *dict = mod->md_dict; PyObject *res = convert_global_to_const(this_instr, dict); if (res != NULL) { this_instr[-1].opcode = _POP_TOP; attr = sym_new_const(ctx, res); } else { this_instr->opcode = _LOAD_ATTR_MODULE; } } if (attr == NULL) { /* No conversion made. We don't know what `attr` is. */ attr = sym_new_not_null(ctx); } } op(_LOAD_ATTR_WITH_HINT, (hint/1, owner -- attr, null if (oparg & 1))) { attr = sym_new_not_null(ctx); null = sym_new_null(ctx); (void)hint; (void)owner; } op(_LOAD_ATTR_SLOT, (index/1, owner -- attr, null if (oparg & 1))) { attr = sym_new_not_null(ctx); null = sym_new_null(ctx); (void)index; (void)owner; } op(_LOAD_ATTR_CLASS, (descr/4, owner -- attr, null if (oparg & 1))) { attr = sym_new_not_null(ctx); null = sym_new_null(ctx); (void)descr; (void)owner; } op(_LOAD_ATTR_METHOD_WITH_VALUES, (descr/4, owner -- attr, self if (1))) { (void)descr; attr = sym_new_not_null(ctx); self = owner; } op(_LOAD_ATTR_METHOD_NO_DICT, (descr/4, owner -- attr, self if (1))) { (void)descr; attr = sym_new_not_null(ctx); self = owner; } op(_LOAD_ATTR_METHOD_LAZY_DICT, (descr/4, owner -- attr, self if (1))) { (void)descr; attr = sym_new_not_null(ctx); self = owner; } op(_LOAD_ATTR_PROPERTY_FRAME, (fget/4, owner -- new_frame: _Py_UOpsAbstractFrame *)) { (void)fget; (void)owner; new_frame = NULL; ctx->done = true; } op(_INIT_CALL_BOUND_METHOD_EXACT_ARGS, (callable, unused, unused[oparg] -- func, self, unused[oparg])) { (void)callable; func = sym_new_not_null(ctx); self = sym_new_not_null(ctx); } op(_CHECK_FUNCTION_VERSION, (func_version/2, callable, self_or_null, unused[oparg] -- callable, self_or_null, unused[oparg])) { (void)self_or_null; if (sym_is_const(callable) && sym_matches_type(callable, &PyFunction_Type)) { assert(PyFunction_Check(sym_get_const(callable))); REPLACE_OP(this_instr, _CHECK_FUNCTION_VERSION_INLINE, 0, func_version); this_instr->operand1 = (uintptr_t)sym_get_const(callable); } sym_set_type(callable, &PyFunction_Type); } op(_CHECK_FUNCTION_EXACT_ARGS, (callable, self_or_null, unused[oparg] -- callable, self_or_null, unused[oparg])) { assert(sym_matches_type(callable, &PyFunction_Type)); if (sym_is_const(callable)) { if (sym_is_null(self_or_null) || sym_is_not_null(self_or_null)) { PyFunctionObject *func = (PyFunctionObject *)sym_get_const(callable); PyCodeObject *co = (PyCodeObject *)func->func_code; if (co->co_argcount == oparg + !sym_is_null(self_or_null)) { REPLACE_OP(this_instr, _NOP, 0 ,0); } } } (void)self_or_null; } op(_CHECK_CALL_BOUND_METHOD_EXACT_ARGS, (callable, null, unused[oparg] -- callable, null, unused[oparg])) { sym_set_null(null); sym_set_type(callable, &PyMethod_Type); } op(_INIT_CALL_PY_EXACT_ARGS, (callable, self_or_null, args[oparg] -- new_frame: _Py_UOpsAbstractFrame *)) { int argcount = oparg; (void)callable; PyCodeObject *co = NULL; assert((this_instr + 2)->opcode == _PUSH_FRAME); co = get_code_with_logging((this_instr + 2)); if (co == NULL) { ctx->done = true; break; } assert(self_or_null != NULL); assert(args != NULL); if (sym_is_not_null(self_or_null)) { // Bound method fiddling, same as _INIT_CALL_PY_EXACT_ARGS in VM args--; argcount++; } if (sym_is_null(self_or_null) || sym_is_not_null(self_or_null)) { new_frame = frame_new(ctx, co, 0, args, argcount); } else { new_frame = frame_new(ctx, co, 0, NULL, 0); } } op(_MAYBE_EXPAND_METHOD, (callable, self_or_null, args[oparg] -- func, maybe_self, args[oparg])) { (void)callable; (void)self_or_null; (void)args; func = sym_new_not_null(ctx); maybe_self = sym_new_not_null(ctx); } op(_PY_FRAME_GENERAL, (callable, self_or_null, args[oparg] -- new_frame: _Py_UOpsAbstractFrame *)) { (void)(self_or_null); (void)(callable); PyCodeObject *co = NULL; assert((this_instr + 2)->opcode == _PUSH_FRAME); co = get_code_with_logging((this_instr + 2)); if (co == NULL) { ctx->done = true; break; } new_frame = frame_new(ctx, co, 0, NULL, 0); } op(_PY_FRAME_KW, (callable, self_or_null, args[oparg], kwnames -- new_frame: _Py_UOpsAbstractFrame *)) { (void)callable; (void)self_or_null; (void)args; (void)kwnames; new_frame = NULL; ctx->done = true; } op(_CHECK_AND_ALLOCATE_OBJECT, (type_version/2, callable, null, args[oparg] -- self, init, args[oparg])) { (void)type_version; (void)callable; (void)null; (void)args; self = sym_new_not_null(ctx); init = sym_new_not_null(ctx); } op(_CREATE_INIT_FRAME, (self, init, args[oparg] -- init_frame: _Py_UOpsAbstractFrame *)) { (void)self; (void)init; (void)args; init_frame = NULL; ctx->done = true; } op(_RETURN_VALUE, (retval -- res)) { SAVE_STACK(); ctx->frame->stack_pointer = stack_pointer; frame_pop(ctx); stack_pointer = ctx->frame->stack_pointer; /* Stack space handling */ assert(corresponding_check_stack == NULL); assert(co != NULL); int framesize = co->co_framesize; assert(framesize > 0); assert(framesize <= curr_space); curr_space -= framesize; co = get_code(this_instr); if (co == NULL) { // might be impossible, but bailing is still safe ctx->done = true; } RELOAD_STACK(); res = retval; } op(_RETURN_GENERATOR, ( -- res)) { SYNC_SP(); ctx->frame->stack_pointer = stack_pointer; frame_pop(ctx); stack_pointer = ctx->frame->stack_pointer; res = sym_new_unknown(ctx); /* Stack space handling */ assert(corresponding_check_stack == NULL); assert(co != NULL); int framesize = co->co_framesize; assert(framesize > 0); assert(framesize <= curr_space); curr_space -= framesize; co = get_code(this_instr); if (co == NULL) { // might be impossible, but bailing is still safe ctx->done = true; } } op(_YIELD_VALUE, (unused -- res)) { res = sym_new_unknown(ctx); } op(_FOR_ITER_GEN_FRAME, ( -- )) { /* We are about to hit the end of the trace */ ctx->done = true; } op(_SEND_GEN_FRAME, ( -- )) { // We are about to hit the end of the trace: ctx->done = true; } op(_CHECK_STACK_SPACE, ( --)) { assert(corresponding_check_stack == NULL); corresponding_check_stack = this_instr; } op (_CHECK_STACK_SPACE_OPERAND, ( -- )) { (void)framesize; /* We should never see _CHECK_STACK_SPACE_OPERANDs. * They are only created at the end of this pass. */ Py_UNREACHABLE(); } op(_PUSH_FRAME, (new_frame: _Py_UOpsAbstractFrame * -- unused if (0))) { SYNC_SP(); ctx->frame->stack_pointer = stack_pointer; ctx->frame = new_frame; ctx->curr_frame_depth++; stack_pointer = new_frame->stack_pointer; co = get_code(this_instr); if (co == NULL) { // should be about to _EXIT_TRACE anyway ctx->done = true; break; } /* Stack space handling */ int framesize = co->co_framesize; assert(framesize > 0); curr_space += framesize; if (curr_space < 0 || curr_space > INT32_MAX) { // won't fit in signed 32-bit int ctx->done = true; break; } max_space = curr_space > max_space ? curr_space : max_space; if (first_valid_check_stack == NULL) { first_valid_check_stack = corresponding_check_stack; } else if (corresponding_check_stack) { // delete all but the first valid _CHECK_STACK_SPACE corresponding_check_stack->opcode = _NOP; } corresponding_check_stack = NULL; } op(_UNPACK_SEQUENCE, (seq -- values[oparg])) { /* This has to be done manually */ (void)seq; for (int i = 0; i < oparg; i++) { values[i] = sym_new_unknown(ctx); } } op(_UNPACK_EX, (seq -- values[oparg & 0xFF], unused, unused[oparg >> 8])) { /* This has to be done manually */ (void)seq; int totalargs = (oparg & 0xFF) + (oparg >> 8) + 1; for (int i = 0; i < totalargs; i++) { values[i] = sym_new_unknown(ctx); } } op(_ITER_NEXT_RANGE, (iter -- iter, next)) { next = sym_new_type(ctx, &PyLong_Type); (void)iter; } op(_GUARD_IS_TRUE_POP, (flag -- )) { if (sym_is_const(flag)) { PyObject *value = sym_get_const(flag); assert(value != NULL); eliminate_pop_guard(this_instr, value != Py_True); } } op(_GUARD_IS_FALSE_POP, (flag -- )) { if (sym_is_const(flag)) { PyObject *value = sym_get_const(flag); assert(value != NULL); eliminate_pop_guard(this_instr, value != Py_False); } } op(_GUARD_IS_NONE_POP, (flag -- )) { if (sym_is_const(flag)) { PyObject *value = sym_get_const(flag); assert(value != NULL); eliminate_pop_guard(this_instr, !Py_IsNone(value)); } else if (sym_has_type(flag)) { assert(!sym_matches_type(flag, &_PyNone_Type)); eliminate_pop_guard(this_instr, true); } } op(_GUARD_IS_NOT_NONE_POP, (flag -- )) { if (sym_is_const(flag)) { PyObject *value = sym_get_const(flag); assert(value != NULL); eliminate_pop_guard(this_instr, Py_IsNone(value)); } else if (sym_has_type(flag)) { assert(!sym_matches_type(flag, &_PyNone_Type)); eliminate_pop_guard(this_instr, false); } } op(_CHECK_PEP_523, (--)) { /* Setting the eval frame function invalidates * all executors, so no need to check dynamically */ if (_PyInterpreterState_GET()->eval_frame == NULL) { REPLACE_OP(this_instr, _NOP, 0 ,0); } } op(_LOAD_SPECIAL, (owner -- attr, self_or_null)) { (void)owner; attr = sym_new_not_null(ctx); self_or_null = sym_new_unknown(ctx); } op(_JUMP_TO_TOP, (--)) { ctx->done = true; } op(_EXIT_TRACE, (exit_p/4 --)) { (void)exit_p; ctx->done = true; } op(_GUARD_GLOBALS_VERSION_PUSH_KEYS, (version/1 -- globals_keys)) { globals_keys = sym_new_unknown(ctx); (void)version; } op(_GUARD_BUILTINS_VERSION_PUSH_KEYS, (version/1 -- builtins_keys)) { builtins_keys = sym_new_unknown(ctx); (void)version; } op(_REPLACE_WITH_TRUE, (value -- res)) { res = sym_new_const(ctx, Py_True); } // END BYTECODES // }