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bpo-46009: Remove GEN_START (GH-30367)

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Brandt Bucher 2022-01-04 11:38:32 -08:00 • committed by GitHub
parent f404e26d74
commit 31e43cbe5f
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 20 additions and 47 deletions
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8
Python/ceval.c
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@ -2709,14 +2709,6 @@ check_eval_breaker:
return retval;
}
TARGET(GEN_START) {
PyObject *none = POP();
assert(none == Py_None);
assert(oparg < 3);
Py_DECREF(none);
DISPATCH();
}
TARGET(POP_EXCEPT) {
_PyErr_StackItem *exc_info = tstate->exc_info;
PyObject *value = exc_info->exc_value;

21
Python/compile.c
View file

@ -1208,8 +1208,6 @@ stack_effect(int opcode, int oparg, int jump)
return 1;
case LIST_TO_TUPLE:
return 0;
case GEN_START:
return -1;
case LIST_EXTEND:
case SET_UPDATE:
case DICT_MERGE:
@ -8028,27 +8026,16 @@ insert_prefix_instructions(struct compiler *c, basicblock *entryblock,
/* Add the generator prefix instructions. */
if (flags & (CO_GENERATOR | CO_COROUTINE | CO_ASYNC_GENERATOR)) {
int kind;
if (flags & CO_COROUTINE) {
kind = 1;
}
else if (flags & CO_ASYNC_GENERATOR) {
kind = 2;
}
else {
kind = 0;
}
struct instr gen_start = {
.i_opcode = GEN_START,
.i_oparg = kind,
struct instr pop_top = {
.i_opcode = POP_TOP,
.i_oparg = 0,
.i_lineno = -1,
.i_col_offset = -1,
.i_end_lineno = -1,
.i_end_col_offset = -1,
.i_target = NULL,
};
if (insert_instruction(entryblock, 0, &gen_start) < 0) {
if (insert_instruction(entryblock, 0, &pop_top) < 0) {
return -1;
}
}

8
Python/opcode_targets.h generated
View file

@ -128,18 +128,18 @@ static void *opcode_targets[256] = {
&&TARGET_DELETE_FAST,
&&TARGET_JUMP_IF_NOT_EG_MATCH,
&&TARGET_STORE_FAST__LOAD_FAST,
&&TARGET_GEN_START,
&&TARGET_RAISE_VARARGS,
&&TARGET_LOAD_FAST__LOAD_CONST,
&&TARGET_RAISE_VARARGS,
&&TARGET_LOAD_CONST__LOAD_FAST,
&&TARGET_MAKE_FUNCTION,
&&TARGET_BUILD_SLICE,
&&TARGET_LOAD_CONST__LOAD_FAST,
&&TARGET_STORE_FAST__STORE_FAST,
&&TARGET_MAKE_CELL,
&&TARGET_LOAD_CLOSURE,
&&TARGET_LOAD_DEREF,
&&TARGET_STORE_DEREF,
&&TARGET_DELETE_DEREF,
&&TARGET_STORE_FAST__STORE_FAST,
&&_unknown_opcode,
&&_unknown_opcode,
&&TARGET_CALL_FUNCTION_EX,
&&_unknown_opcode,