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GH-100222: Redefine _Py_CODEUNIT as a union to clarify structure of code unit. (GH-100223)

This commit is contained in:
Mark Shannon 2022-12-14 11:12:53 +00:00 committed by GitHub
parent 985a71032b
commit 6997e77bdf
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 150 additions and 134 deletions
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29
Include/cpython/code.h
View File

@ -16,21 +16,24 @@ extern "C" {
* 2**32 - 1, rather than INT_MAX.
*/
typedef uint16_t _Py_CODEUNIT;
typedef union {
uint16_t cache;
struct {
uint8_t opcode;
uint8_t oparg;
};
} _Py_CODEUNIT;
#ifdef WORDS_BIGENDIAN
# define _Py_OPCODE(word) ((word) >> 8)
# define _Py_OPARG(word) ((word) & 255)
# define _Py_MAKECODEUNIT(opcode, oparg) (((opcode)<<8)|(oparg))
#else
# define _Py_OPCODE(word) ((word) & 255)
# define _Py_OPARG(word) ((word) >> 8)
# define _Py_MAKECODEUNIT(opcode, oparg) ((opcode)|((oparg)<<8))
#endif
#define _Py_OPCODE(word) ((word).opcode)
#define _Py_OPARG(word) ((word).oparg)
// Use "unsigned char" instead of "uint8_t" here to avoid illegal aliasing:
#define _Py_SET_OPCODE(word, opcode) \
do { ((unsigned char *)&(word))[0] = (opcode); } while (0)
static inline void
_py_set_opocde(_Py_CODEUNIT *word, uint8_t opcode)
{
word->opcode = opcode;
}
#define _Py_SET_OPCODE(word, opcode) _py_set_opocde(&(word), opcode)
typedef struct {
PyObject *_co_code;

48
Include/internal/pycore_code.h
View File

@ -18,53 +18,53 @@ extern "C" {
#define CACHE_ENTRIES(cache) (sizeof(cache)/sizeof(_Py_CODEUNIT))
typedef struct {
_Py_CODEUNIT counter;
_Py_CODEUNIT index;
_Py_CODEUNIT module_keys_version[2];
_Py_CODEUNIT builtin_keys_version;
uint16_t counter;
uint16_t index;
uint16_t module_keys_version[2];
uint16_t builtin_keys_version;
} _PyLoadGlobalCache;
#define INLINE_CACHE_ENTRIES_LOAD_GLOBAL CACHE_ENTRIES(_PyLoadGlobalCache)
typedef struct {
_Py_CODEUNIT counter;
uint16_t counter;
} _PyBinaryOpCache;
#define INLINE_CACHE_ENTRIES_BINARY_OP CACHE_ENTRIES(_PyBinaryOpCache)
typedef struct {
_Py_CODEUNIT counter;
uint16_t counter;
} _PyUnpackSequenceCache;
#define INLINE_CACHE_ENTRIES_UNPACK_SEQUENCE \
CACHE_ENTRIES(_PyUnpackSequenceCache)
typedef struct {
_Py_CODEUNIT counter;
_Py_CODEUNIT mask;
uint16_t counter;
uint16_t mask;
} _PyCompareOpCache;
#define INLINE_CACHE_ENTRIES_COMPARE_OP CACHE_ENTRIES(_PyCompareOpCache)
typedef struct {
_Py_CODEUNIT counter;
_Py_CODEUNIT type_version[2];
_Py_CODEUNIT func_version;
uint16_t counter;
uint16_t type_version[2];
uint16_t func_version;
} _PyBinarySubscrCache;
#define INLINE_CACHE_ENTRIES_BINARY_SUBSCR CACHE_ENTRIES(_PyBinarySubscrCache)
typedef struct {
_Py_CODEUNIT counter;
_Py_CODEUNIT version[2];
_Py_CODEUNIT index;
uint16_t counter;
uint16_t version[2];
uint16_t index;
} _PyAttrCache;
typedef struct {
_Py_CODEUNIT counter;
_Py_CODEUNIT type_version[2];
_Py_CODEUNIT keys_version[2];
_Py_CODEUNIT descr[4];
uint16_t counter;
uint16_t type_version[2];
uint16_t keys_version[2];
uint16_t descr[4];
} _PyLoadMethodCache;
@ -74,21 +74,21 @@ typedef struct {
#define INLINE_CACHE_ENTRIES_STORE_ATTR CACHE_ENTRIES(_PyAttrCache)
typedef struct {
_Py_CODEUNIT counter;
_Py_CODEUNIT func_version[2];
_Py_CODEUNIT min_args;
uint16_t counter;
uint16_t func_version[2];
uint16_t min_args;
} _PyCallCache;
#define INLINE_CACHE_ENTRIES_CALL CACHE_ENTRIES(_PyCallCache)
typedef struct {
_Py_CODEUNIT counter;
uint16_t counter;
} _PyStoreSubscrCache;
#define INLINE_CACHE_ENTRIES_STORE_SUBSCR CACHE_ENTRIES(_PyStoreSubscrCache)
typedef struct {
_Py_CODEUNIT counter;
uint16_t counter;
} _PyForIterCache;
#define INLINE_CACHE_ENTRIES_FOR_ITER CACHE_ENTRIES(_PyForIterCache)
@ -409,7 +409,7 @@ write_location_entry_start(uint8_t *ptr, int code, int length)
static inline uint16_t
adaptive_counter_bits(int value, int backoff) {
return (value << ADAPTIVE_BACKOFF_BITS) |
(backoff & ((1<<ADAPTIVE_BACKOFF_BITS)-1));
(backoff & ((1<<ADAPTIVE_BACKOFF_BITS)-1));
}
static inline uint16_t

2
Misc/NEWS.d/next/Core and Builtins/2022-12-13-16-05-18.gh-issue-100222.OVVvYe.rst Normal file
View File

@ -0,0 +1,2 @@
Redefine the ``_Py_CODEUNIT`` typedef as a union to describe its layout to
the C compiler, avoiding type punning and improving clarity.

11
Objects/codeobject.c
View File

@ -1520,9 +1520,10 @@ deopt_code(_Py_CODEUNIT *instructions, Py_ssize_t len)
_Py_CODEUNIT instruction = instructions[i];
int opcode = _PyOpcode_Deopt[_Py_OPCODE(instruction)];
int caches = _PyOpcode_Caches[opcode];
instructions[i] = _Py_MAKECODEUNIT(opcode, _Py_OPARG(instruction));
instructions[i].opcode = opcode;
while (caches--) {
instructions[++i] = _Py_MAKECODEUNIT(CACHE, 0);
instructions[++i].opcode = CACHE;
instructions[i].oparg = 0;
}
}
}
@ -1775,9 +1776,9 @@ code_richcompare(PyObject *self, PyObject *other, int op)
for (int i = 0; i < Py_SIZE(co); i++) {
_Py_CODEUNIT co_instr = _PyCode_CODE(co)[i];
_Py_CODEUNIT cp_instr = _PyCode_CODE(cp)[i];
_Py_SET_OPCODE(co_instr, _PyOpcode_Deopt[_Py_OPCODE(co_instr)]);
_Py_SET_OPCODE(cp_instr, _PyOpcode_Deopt[_Py_OPCODE(cp_instr)]);
eq = co_instr == cp_instr;
co_instr.opcode = _PyOpcode_Deopt[_Py_OPCODE(co_instr)];
cp_instr.opcode =_PyOpcode_Deopt[_Py_OPCODE(cp_instr)];
eq = co_instr.cache == cp_instr.cache;
if (!eq) {
goto unequal;
}

4
Python/ceval.c
View File

@ -864,7 +864,7 @@ GETITEM(PyObject *v, Py_ssize_t i) {
STAT_INC(opcode, miss); \
STAT_INC((INSTNAME), miss); \
/* The counter is always the first cache entry: */ \
if (ADAPTIVE_COUNTER_IS_ZERO(*next_instr)) { \
if (ADAPTIVE_COUNTER_IS_ZERO(next_instr->cache)) { \
STAT_INC((INSTNAME), deopt); \
} \
else { \
@ -1289,7 +1289,7 @@ handle_eval_breaker:
}
opcode = _PyOpcode_Deopt[opcode];
if (_PyOpcode_Caches[opcode]) {
_Py_CODEUNIT *counter = &next_instr[1];
uint16_t *counter = &next_instr[1].cache;
// The instruction is going to decrement the counter, so we need to
// increment it here to make sure it doesn't try to specialize:
if (!ADAPTIVE_COUNTER_IS_MAX(*counter)) {

20
Python/compile.c
View File

@ -263,22 +263,32 @@ write_instr(_Py_CODEUNIT *codestr, struct instr *instruction, int ilen)
int caches = _PyOpcode_Caches[opcode];
switch (ilen - caches) {
case 4:
*codestr++ = _Py_MAKECODEUNIT(EXTENDED_ARG, (oparg >> 24) & 0xFF);
codestr->opcode = EXTENDED_ARG;
codestr->oparg = (oparg >> 24) & 0xFF;
codestr++;
/* fall through */
case 3:
*codestr++ = _Py_MAKECODEUNIT(EXTENDED_ARG, (oparg >> 16) & 0xFF);
codestr->opcode = EXTENDED_ARG;
codestr->oparg = (oparg >> 16) & 0xFF;
codestr++;
/* fall through */
case 2:
*codestr++ = _Py_MAKECODEUNIT(EXTENDED_ARG, (oparg >> 8) & 0xFF);
codestr->opcode = EXTENDED_ARG;
codestr->oparg = (oparg >> 8) & 0xFF;
codestr++;
/* fall through */
case 1:
*codestr++ = _Py_MAKECODEUNIT(opcode, oparg & 0xFF);
codestr->opcode = opcode;
codestr->oparg = oparg & 0xFF;
codestr++;
break;
default:
Py_UNREACHABLE();
}
while (caches--) {
*codestr++ = _Py_MAKECODEUNIT(CACHE, 0);
codestr->opcode = CACHE;
codestr->oparg = 0;
codestr++;
}
}

26
Python/generated_cases.c.h generated
View File

@ -562,8 +562,8 @@
TARGET(BINARY_SUBSCR_GETITEM) {
PyObject *sub = PEEK(1);
PyObject *container = PEEK(2);
uint32_t type_version = read_u32(next_instr + 1);
uint16_t func_version = read_u16(next_instr + 3);
uint32_t type_version = read_u32(&next_instr[1].cache);
uint16_t func_version = read_u16(&next_instr[3].cache);
PyTypeObject *tp = Py_TYPE(container);
DEOPT_IF(tp->tp_version_tag != type_version, BINARY_SUBSCR);
assert(tp->tp_flags & Py_TPFLAGS_HEAPTYPE);
@ -612,7 +612,7 @@
PyObject *sub = PEEK(1);
PyObject *container = PEEK(2);
PyObject *v = PEEK(3);
uint16_t counter = read_u16(next_instr + 0);
uint16_t counter = read_u16(&next_instr[0].cache);
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
assert(cframe.use_tracing == 0);
next_instr--;
@ -1249,7 +1249,7 @@
PREDICTED(STORE_ATTR);
PyObject *owner = PEEK(1);
PyObject *v = PEEK(2);
uint16_t counter = read_u16(next_instr + 0);
uint16_t counter = read_u16(&next_instr[0].cache);
if (ADAPTIVE_COUNTER_IS_ZERO(counter)) {
assert(cframe.use_tracing == 0);
PyObject *name = GETITEM(names, oparg);
@ -2083,8 +2083,8 @@
TARGET(STORE_ATTR_INSTANCE_VALUE) {
PyObject *owner = PEEK(1);
PyObject *value = PEEK(2);
uint32_t type_version = read_u32(next_instr + 1);
uint16_t index = read_u16(next_instr + 3);
uint32_t type_version = read_u32(&next_instr[1].cache);
uint16_t index = read_u16(&next_instr[3].cache);
assert(cframe.use_tracing == 0);
PyTypeObject *tp = Py_TYPE(owner);
assert(type_version != 0);
@ -2111,8 +2111,8 @@
TARGET(STORE_ATTR_WITH_HINT) {
PyObject *owner = PEEK(1);
PyObject *value = PEEK(2);
uint32_t type_version = read_u32(next_instr + 1);
uint16_t hint = read_u16(next_instr + 3);
uint32_t type_version = read_u32(&next_instr[1].cache);
uint16_t hint = read_u16(&next_instr[3].cache);
assert(cframe.use_tracing == 0);
PyTypeObject *tp = Py_TYPE(owner);
assert(type_version != 0);
@ -2160,8 +2160,8 @@
TARGET(STORE_ATTR_SLOT) {
PyObject *owner = PEEK(1);
PyObject *value = PEEK(2);
uint32_t type_version = read_u32(next_instr + 1);
uint16_t index = read_u16(next_instr + 3);
uint32_t type_version = read_u32(&next_instr[1].cache);
uint16_t index = read_u16(&next_instr[3].cache);
assert(cframe.use_tracing == 0);
PyTypeObject *tp = Py_TYPE(owner);
assert(type_version != 0);
@ -2209,7 +2209,7 @@
PyObject *right = _tmp_1;
PyObject *left = _tmp_2;
size_t jump;
uint16_t when_to_jump_mask = read_u16(next_instr + 1);
uint16_t when_to_jump_mask = read_u16(&next_instr[1].cache);
assert(cframe.use_tracing == 0);
// Combined: COMPARE_OP (float ? float) + POP_JUMP_IF_(true/false)
DEOPT_IF(!PyFloat_CheckExact(left), COMPARE_OP);
@ -2247,7 +2247,7 @@
PyObject *right = _tmp_1;
PyObject *left = _tmp_2;
size_t jump;
uint16_t when_to_jump_mask = read_u16(next_instr + 1);
uint16_t when_to_jump_mask = read_u16(&next_instr[1].cache);
assert(cframe.use_tracing == 0);
// Combined: COMPARE_OP (int ? int) + POP_JUMP_IF_(true/false)
DEOPT_IF(!PyLong_CheckExact(left), COMPARE_OP);
@ -2286,7 +2286,7 @@
PyObject *right = _tmp_1;
PyObject *left = _tmp_2;
size_t jump;
uint16_t invert = read_u16(next_instr + 1);
uint16_t invert = read_u16(&next_instr[1].cache);
assert(cframe.use_tracing == 0);
// Combined: COMPARE_OP (str == str or str != str) + POP_JUMP_IF_(true/false)
DEOPT_IF(!PyUnicode_CheckExact(left), COMPARE_OP);

142
Python/specialize.c
View File

@ -267,26 +267,26 @@ _PyCode_Quicken(PyCodeObject *code)
int opcode = _PyOpcode_Deopt[_Py_OPCODE(instructions[i])];
int caches = _PyOpcode_Caches[opcode];
if (caches) {
instructions[i + 1] = adaptive_counter_warmup();
instructions[i + 1].cache = adaptive_counter_warmup();
previous_opcode = 0;
i += caches;
continue;
}
switch (previous_opcode << 8 | opcode) {
case LOAD_CONST << 8 | LOAD_FAST:
_Py_SET_OPCODE(instructions[i - 1], LOAD_CONST__LOAD_FAST);
instructions[i - 1].opcode = LOAD_CONST__LOAD_FAST;
break;
case LOAD_FAST << 8 | LOAD_CONST:
_Py_SET_OPCODE(instructions[i - 1], LOAD_FAST__LOAD_CONST);
instructions[i - 1].opcode = LOAD_FAST__LOAD_CONST;
break;
case LOAD_FAST << 8 | LOAD_FAST:
_Py_SET_OPCODE(instructions[i - 1], LOAD_FAST__LOAD_FAST);
instructions[i - 1].opcode = LOAD_FAST__LOAD_FAST;
break;
case STORE_FAST << 8 | LOAD_FAST:
_Py_SET_OPCODE(instructions[i - 1], STORE_FAST__LOAD_FAST);
instructions[i - 1].opcode = STORE_FAST__LOAD_FAST;
break;
case STORE_FAST << 8 | STORE_FAST:
_Py_SET_OPCODE(instructions[i - 1], STORE_FAST__STORE_FAST);
instructions[i - 1].opcode = STORE_FAST__STORE_FAST;
break;
}
previous_opcode = opcode;
@ -482,7 +482,7 @@ specialize_module_load_attr(PyObject *owner, _Py_CODEUNIT *instr,
}
write_u32(cache->version, keys_version);
cache->index = (uint16_t)index;
_Py_SET_OPCODE(*instr, opcode_module);
_py_set_opocde(instr, opcode_module);
return 0;
}
@ -634,7 +634,7 @@ specialize_dict_access(
}
write_u32(cache->version, type->tp_version_tag);
cache->index = (uint16_t)index;
_Py_SET_OPCODE(*instr, values_op);
_py_set_opocde(instr, values_op);
}
else {
PyDictObject *dict = (PyDictObject *)_PyDictOrValues_GetDict(dorv);
@ -651,7 +651,7 @@ specialize_dict_access(
}
cache->index = (uint16_t)index;
write_u32(cache->version, type->tp_version_tag);
_Py_SET_OPCODE(*instr, hint_op);
_py_set_opocde(instr, hint_op);
}
return 1;
}
@ -730,7 +730,7 @@ _Py_Specialize_LoadAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
write_u32(lm_cache->type_version, type->tp_version_tag);
/* borrowed */
write_obj(lm_cache->descr, fget);
_Py_SET_OPCODE(*instr, LOAD_ATTR_PROPERTY);
_py_set_opocde(instr, LOAD_ATTR_PROPERTY);
goto success;
}
case OBJECT_SLOT:
@ -754,7 +754,7 @@ _Py_Specialize_LoadAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
assert(offset > 0);
cache->index = (uint16_t)offset;
write_u32(cache->version, type->tp_version_tag);
_Py_SET_OPCODE(*instr, LOAD_ATTR_SLOT);
_py_set_opocde(instr, LOAD_ATTR_SLOT);
goto success;
}
case DUNDER_CLASS:
@ -763,7 +763,7 @@ _Py_Specialize_LoadAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
assert(offset == (uint16_t)offset);
cache->index = (uint16_t)offset;
write_u32(cache->version, type->tp_version_tag);
_Py_SET_OPCODE(*instr, LOAD_ATTR_SLOT);
_py_set_opocde(instr, LOAD_ATTR_SLOT);
goto success;
}
case OTHER_SLOT:
@ -791,7 +791,7 @@ _Py_Specialize_LoadAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
/* borrowed */
write_obj(lm_cache->descr, descr);
write_u32(lm_cache->type_version, type->tp_version_tag);
_Py_SET_OPCODE(*instr, LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN);
_py_set_opocde(instr, LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN);
goto success;
}
case BUILTIN_CLASSMETHOD:
@ -809,7 +809,7 @@ _Py_Specialize_LoadAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
fail:
STAT_INC(LOAD_ATTR, failure);
assert(!PyErr_Occurred());
_Py_SET_OPCODE(*instr, LOAD_ATTR);
_py_set_opocde(instr, LOAD_ATTR);
cache->counter = adaptive_counter_backoff(cache->counter);
return;
success:
@ -868,7 +868,7 @@ _Py_Specialize_StoreAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
assert(offset > 0);
cache->index = (uint16_t)offset;
write_u32(cache->version, type->tp_version_tag);
_Py_SET_OPCODE(*instr, STORE_ATTR_SLOT);
_py_set_opocde(instr, STORE_ATTR_SLOT);
goto success;
}
case DUNDER_CLASS:
@ -897,7 +897,7 @@ _Py_Specialize_StoreAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
fail:
STAT_INC(STORE_ATTR, failure);
assert(!PyErr_Occurred());
_Py_SET_OPCODE(*instr, STORE_ATTR);
_py_set_opocde(instr, STORE_ATTR);
cache->counter = adaptive_counter_backoff(cache->counter);
return;
success:
@ -961,7 +961,7 @@ specialize_class_load_attr(PyObject *owner, _Py_CODEUNIT *instr,
case NON_DESCRIPTOR:
write_u32(cache->type_version, ((PyTypeObject *)owner)->tp_version_tag);
write_obj(cache->descr, descr);
_Py_SET_OPCODE(*instr, LOAD_ATTR_CLASS);
_py_set_opocde(instr, LOAD_ATTR_CLASS);
return 0;
#ifdef Py_STATS
case ABSENT:
@ -1043,21 +1043,21 @@ PyObject *descr, DescriptorClassification kind)
}
switch(dictkind) {
case NO_DICT:
_Py_SET_OPCODE(*instr, LOAD_ATTR_METHOD_NO_DICT);
_py_set_opocde(instr, LOAD_ATTR_METHOD_NO_DICT);
break;
case MANAGED_VALUES:
_Py_SET_OPCODE(*instr, LOAD_ATTR_METHOD_WITH_VALUES);
_py_set_opocde(instr, LOAD_ATTR_METHOD_WITH_VALUES);
break;
case MANAGED_DICT:
SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_HAS_MANAGED_DICT);
goto fail;
case OFFSET_DICT:
assert(owner_cls->tp_dictoffset > 0 && owner_cls->tp_dictoffset <= INT16_MAX);
_Py_SET_OPCODE(*instr, LOAD_ATTR_METHOD_WITH_DICT);
_py_set_opocde(instr, LOAD_ATTR_METHOD_WITH_DICT);
break;
case LAZY_DICT:
assert(owner_cls->tp_dictoffset > 0 && owner_cls->tp_dictoffset <= INT16_MAX);
_Py_SET_OPCODE(*instr, LOAD_ATTR_METHOD_LAZY_DICT);
_py_set_opocde(instr, LOAD_ATTR_METHOD_LAZY_DICT);
break;
}
/* `descr` is borrowed. This is safe for methods (even inherited ones from
@ -1114,7 +1114,7 @@ _Py_Specialize_LoadGlobal(
}
cache->index = (uint16_t)index;
write_u32(cache->module_keys_version, keys_version);
_Py_SET_OPCODE(*instr, LOAD_GLOBAL_MODULE);
_py_set_opocde(instr, LOAD_GLOBAL_MODULE);
goto success;
}
if (!PyDict_CheckExact(builtins)) {
@ -1150,12 +1150,12 @@ _Py_Specialize_LoadGlobal(
cache->index = (uint16_t)index;
write_u32(cache->module_keys_version, globals_version);
cache->builtin_keys_version = (uint16_t)builtins_version;
_Py_SET_OPCODE(*instr, LOAD_GLOBAL_BUILTIN);
_py_set_opocde(instr, LOAD_GLOBAL_BUILTIN);
goto success;
fail:
STAT_INC(LOAD_GLOBAL, failure);
assert(!PyErr_Occurred());
_Py_SET_OPCODE(*instr, LOAD_GLOBAL);
_py_set_opocde(instr, LOAD_GLOBAL);
cache->counter = adaptive_counter_backoff(cache->counter);
return;
success:
@ -1259,7 +1259,7 @@ _Py_Specialize_BinarySubscr(
PyTypeObject *container_type = Py_TYPE(container);
if (container_type == &PyList_Type) {
if (PyLong_CheckExact(sub)) {
_Py_SET_OPCODE(*instr, BINARY_SUBSCR_LIST_INT);
_py_set_opocde(instr, BINARY_SUBSCR_LIST_INT);
goto success;
}
SPECIALIZATION_FAIL(BINARY_SUBSCR,
@ -1268,7 +1268,7 @@ _Py_Specialize_BinarySubscr(
}
if (container_type == &PyTuple_Type) {
if (PyLong_CheckExact(sub)) {
_Py_SET_OPCODE(*instr, BINARY_SUBSCR_TUPLE_INT);
_py_set_opocde(instr, BINARY_SUBSCR_TUPLE_INT);
goto success;
}
SPECIALIZATION_FAIL(BINARY_SUBSCR,
@ -1276,7 +1276,7 @@ _Py_Specialize_BinarySubscr(
goto fail;
}
if (container_type == &PyDict_Type) {
_Py_SET_OPCODE(*instr, BINARY_SUBSCR_DICT);
_py_set_opocde(instr, BINARY_SUBSCR_DICT);
goto success;
}
PyTypeObject *cls = Py_TYPE(container);
@ -1307,7 +1307,7 @@ _Py_Specialize_BinarySubscr(
}
cache->func_version = version;
((PyHeapTypeObject *)container_type)->_spec_cache.getitem = descriptor;
_Py_SET_OPCODE(*instr, BINARY_SUBSCR_GETITEM);
_py_set_opocde(instr, BINARY_SUBSCR_GETITEM);
goto success;
}
SPECIALIZATION_FAIL(BINARY_SUBSCR,
@ -1315,7 +1315,7 @@ _Py_Specialize_BinarySubscr(
fail:
STAT_INC(BINARY_SUBSCR, failure);
assert(!PyErr_Occurred());
_Py_SET_OPCODE(*instr, BINARY_SUBSCR);
_py_set_opocde(instr, BINARY_SUBSCR);
cache->counter = adaptive_counter_backoff(cache->counter);
return;
success:
@ -1334,7 +1334,7 @@ _Py_Specialize_StoreSubscr(PyObject *container, PyObject *sub, _Py_CODEUNIT *ins
if ((Py_SIZE(sub) == 0 || Py_SIZE(sub) == 1)
&& ((PyLongObject *)sub)->ob_digit[0] < (size_t)PyList_GET_SIZE(container))
{
_Py_SET_OPCODE(*instr, STORE_SUBSCR_LIST_INT);
_py_set_opocde(instr, STORE_SUBSCR_LIST_INT);
goto success;
}
else {
@ -1352,7 +1352,7 @@ _Py_Specialize_StoreSubscr(PyObject *container, PyObject *sub, _Py_CODEUNIT *ins
}
}
if (container_type == &PyDict_Type) {
_Py_SET_OPCODE(*instr, STORE_SUBSCR_DICT);
_py_set_opocde(instr, STORE_SUBSCR_DICT);
goto success;
}
#ifdef Py_STATS
@ -1419,7 +1419,7 @@ _Py_Specialize_StoreSubscr(PyObject *container, PyObject *sub, _Py_CODEUNIT *ins
fail:
STAT_INC(STORE_SUBSCR, failure);
assert(!PyErr_Occurred());
_Py_SET_OPCODE(*instr, STORE_SUBSCR);
_py_set_opocde(instr, STORE_SUBSCR);
cache->counter = adaptive_counter_backoff(cache->counter);
return;
success:
@ -1441,20 +1441,20 @@ specialize_class_call(PyObject *callable, _Py_CODEUNIT *instr, int nargs,
int oparg = _Py_OPARG(*instr);
if (nargs == 1 && kwnames == NULL && oparg == 1) {
if (tp == &PyUnicode_Type) {
_Py_SET_OPCODE(*instr, CALL_NO_KW_STR_1);
_py_set_opocde(instr, CALL_NO_KW_STR_1);
return 0;
}
else if (tp == &PyType_Type) {
_Py_SET_OPCODE(*instr, CALL_NO_KW_TYPE_1);
_py_set_opocde(instr, CALL_NO_KW_TYPE_1);
return 0;
}
else if (tp == &PyTuple_Type) {
_Py_SET_OPCODE(*instr, CALL_NO_KW_TUPLE_1);
_py_set_opocde(instr, CALL_NO_KW_TUPLE_1);
return 0;
}
}
if (tp->tp_vectorcall != NULL) {
_Py_SET_OPCODE(*instr, CALL_BUILTIN_CLASS);
_py_set_opocde(instr, CALL_BUILTIN_CLASS);
return 0;
}
SPECIALIZATION_FAIL(CALL, tp == &PyUnicode_Type ?
@ -1506,7 +1506,7 @@ specialize_method_descriptor(PyMethodDescrObject *descr, _Py_CODEUNIT *instr,
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_WRONG_NUMBER_ARGUMENTS);
return -1;
}
_Py_SET_OPCODE(*instr, CALL_NO_KW_METHOD_DESCRIPTOR_NOARGS);
_py_set_opocde(instr, CALL_NO_KW_METHOD_DESCRIPTOR_NOARGS);
return 0;
}
case METH_O: {
@ -1520,18 +1520,18 @@ specialize_method_descriptor(PyMethodDescrObject *descr, _Py_CODEUNIT *instr,
bool pop = (_Py_OPCODE(next) == POP_TOP);
int oparg = _Py_OPARG(*instr);
if ((PyObject *)descr == list_append && oparg == 1 && pop) {
_Py_SET_OPCODE(*instr, CALL_NO_KW_LIST_APPEND);
_py_set_opocde(instr, CALL_NO_KW_LIST_APPEND);
return 0;
}
_Py_SET_OPCODE(*instr, CALL_NO_KW_METHOD_DESCRIPTOR_O);
_py_set_opocde(instr, CALL_NO_KW_METHOD_DESCRIPTOR_O);
return 0;
}
case METH_FASTCALL: {
_Py_SET_OPCODE(*instr, CALL_NO_KW_METHOD_DESCRIPTOR_FAST);
_py_set_opocde(instr, CALL_NO_KW_METHOD_DESCRIPTOR_FAST);
return 0;
}
case METH_FASTCALL|METH_KEYWORDS: {
_Py_SET_OPCODE(*instr, CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS);
_py_set_opocde(instr, CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS);
return 0;
}
}
@ -1582,14 +1582,14 @@ specialize_py_call(PyFunctionObject *func, _Py_CODEUNIT *instr, int nargs,
write_u32(cache->func_version, version);
cache->min_args = min_args;
if (argcount == nargs) {
_Py_SET_OPCODE(*instr, bound_method ? CALL_BOUND_METHOD_EXACT_ARGS : CALL_PY_EXACT_ARGS);
_py_set_opocde(instr, bound_method ? CALL_BOUND_METHOD_EXACT_ARGS : CALL_PY_EXACT_ARGS);
}
else if (bound_method) {
SPECIALIZATION_FAIL(CALL, SPEC_FAIL_CALL_BOUND_METHOD);
return -1;
}
else {
_Py_SET_OPCODE(*instr, CALL_PY_WITH_DEFAULTS);
_py_set_opocde(instr, CALL_PY_WITH_DEFAULTS);
}
return 0;
}
@ -1616,10 +1616,10 @@ specialize_c_call(PyObject *callable, _Py_CODEUNIT *instr, int nargs,
/* len(o) */
PyInterpreterState *interp = _PyInterpreterState_GET();
if (callable == interp->callable_cache.len) {
_Py_SET_OPCODE(*instr, CALL_NO_KW_LEN);
_py_set_opocde(instr, CALL_NO_KW_LEN);
return 0;
}
_Py_SET_OPCODE(*instr, CALL_NO_KW_BUILTIN_O);
_py_set_opocde(instr, CALL_NO_KW_BUILTIN_O);
return 0;
}
case METH_FASTCALL: {
@ -1631,15 +1631,15 @@ specialize_c_call(PyObject *callable, _Py_CODEUNIT *instr, int nargs,
/* isinstance(o1, o2) */
PyInterpreterState *interp = _PyInterpreterState_GET();
if (callable == interp->callable_cache.isinstance) {
_Py_SET_OPCODE(*instr, CALL_NO_KW_ISINSTANCE);
_py_set_opocde(instr, CALL_NO_KW_ISINSTANCE);
return 0;
}
}
_Py_SET_OPCODE(*instr, CALL_NO_KW_BUILTIN_FAST);
_py_set_opocde(instr, CALL_NO_KW_BUILTIN_FAST);
return 0;
}
case METH_FASTCALL | METH_KEYWORDS: {
_Py_SET_OPCODE(*instr, CALL_BUILTIN_FAST_WITH_KEYWORDS);
_py_set_opocde(instr, CALL_BUILTIN_FAST_WITH_KEYWORDS);
return 0;
}
default:
@ -1732,7 +1732,7 @@ _Py_Specialize_Call(PyObject *callable, _Py_CODEUNIT *instr, int nargs,
if (fail) {
STAT_INC(CALL, failure);
assert(!PyErr_Occurred());
_Py_SET_OPCODE(*instr, CALL);
_py_set_opocde(instr, CALL);
cache->counter = adaptive_counter_backoff(cache->counter);
}
else {
@ -1829,18 +1829,18 @@ _Py_Specialize_BinaryOp(PyObject *lhs, PyObject *rhs, _Py_CODEUNIT *instr,
bool to_store = (_Py_OPCODE(next) == STORE_FAST ||
_Py_OPCODE(next) == STORE_FAST__LOAD_FAST);
if (to_store && locals[_Py_OPARG(next)] == lhs) {
_Py_SET_OPCODE(*instr, BINARY_OP_INPLACE_ADD_UNICODE);
_py_set_opocde(instr, BINARY_OP_INPLACE_ADD_UNICODE);
goto success;
}
_Py_SET_OPCODE(*instr, BINARY_OP_ADD_UNICODE);
_py_set_opocde(instr, BINARY_OP_ADD_UNICODE);
goto success;
}
if (PyLong_CheckExact(lhs)) {
_Py_SET_OPCODE(*instr, BINARY_OP_ADD_INT);
_py_set_opocde(instr, BINARY_OP_ADD_INT);
goto success;
}
if (PyFloat_CheckExact(lhs)) {
_Py_SET_OPCODE(*instr, BINARY_OP_ADD_FLOAT);
_py_set_opocde(instr, BINARY_OP_ADD_FLOAT);
goto success;
}
break;
@ -1850,11 +1850,11 @@ _Py_Specialize_BinaryOp(PyObject *lhs, PyObject *rhs, _Py_CODEUNIT *instr,
break;
}
if (PyLong_CheckExact(lhs)) {
_Py_SET_OPCODE(*instr, BINARY_OP_MULTIPLY_INT);
_py_set_opocde(instr, BINARY_OP_MULTIPLY_INT);
goto success;
}
if (PyFloat_CheckExact(lhs)) {
_Py_SET_OPCODE(*instr, BINARY_OP_MULTIPLY_FLOAT);
_py_set_opocde(instr, BINARY_OP_MULTIPLY_FLOAT);
goto success;
}
break;
@ -1864,18 +1864,18 @@ _Py_Specialize_BinaryOp(PyObject *lhs, PyObject *rhs, _Py_CODEUNIT *instr,
break;
}
if (PyLong_CheckExact(lhs)) {
_Py_SET_OPCODE(*instr, BINARY_OP_SUBTRACT_INT);
_py_set_opocde(instr, BINARY_OP_SUBTRACT_INT);
goto success;
}
if (PyFloat_CheckExact(lhs)) {
_Py_SET_OPCODE(*instr, BINARY_OP_SUBTRACT_FLOAT);
_py_set_opocde(instr, BINARY_OP_SUBTRACT_FLOAT);
goto success;
}
break;
}
SPECIALIZATION_FAIL(BINARY_OP, binary_op_fail_kind(oparg, lhs, rhs));
STAT_INC(BINARY_OP, failure);
_Py_SET_OPCODE(*instr, BINARY_OP);
_py_set_opocde(instr, BINARY_OP);
cache->counter = adaptive_counter_backoff(cache->counter);
return;
success:
@ -1957,13 +1957,13 @@ _Py_Specialize_CompareOp(PyObject *lhs, PyObject *rhs, _Py_CODEUNIT *instr,
goto failure;
}
if (PyFloat_CheckExact(lhs)) {
_Py_SET_OPCODE(*instr, COMPARE_OP_FLOAT_JUMP);
_py_set_opocde(instr, COMPARE_OP_FLOAT_JUMP);
cache->mask = when_to_jump_mask;
goto success;
}
if (PyLong_CheckExact(lhs)) {
if (Py_ABS(Py_SIZE(lhs)) <= 1 && Py_ABS(Py_SIZE(rhs)) <= 1) {
_Py_SET_OPCODE(*instr, COMPARE_OP_INT_JUMP);
_py_set_opocde(instr, COMPARE_OP_INT_JUMP);
cache->mask = when_to_jump_mask;
goto success;
}
@ -1978,7 +1978,7 @@ _Py_Specialize_CompareOp(PyObject *lhs, PyObject *rhs, _Py_CODEUNIT *instr,
goto failure;
}
else {
_Py_SET_OPCODE(*instr, COMPARE_OP_STR_JUMP);
_py_set_opocde(instr, COMPARE_OP_STR_JUMP);
cache->mask = (when_to_jump_mask & 2) == 0;
goto success;
}
@ -1986,7 +1986,7 @@ _Py_Specialize_CompareOp(PyObject *lhs, PyObject *rhs, _Py_CODEUNIT *instr,
SPECIALIZATION_FAIL(COMPARE_OP, compare_op_fail_kind(lhs, rhs));
failure:
STAT_INC(COMPARE_OP, failure);
_Py_SET_OPCODE(*instr, COMPARE_OP);
_py_set_opocde(instr, COMPARE_OP);
cache->counter = adaptive_counter_backoff(cache->counter);
return;
success:
@ -2020,10 +2020,10 @@ _Py_Specialize_UnpackSequence(PyObject *seq, _Py_CODEUNIT *instr, int oparg)
goto failure;
}
if (PyTuple_GET_SIZE(seq) == 2) {
_Py_SET_OPCODE(*instr, UNPACK_SEQUENCE_TWO_TUPLE);
_py_set_opocde(instr, UNPACK_SEQUENCE_TWO_TUPLE);
goto success;
}
_Py_SET_OPCODE(*instr, UNPACK_SEQUENCE_TUPLE);
_py_set_opocde(instr, UNPACK_SEQUENCE_TUPLE);
goto success;
}
if (PyList_CheckExact(seq)) {
@ -2031,13 +2031,13 @@ _Py_Specialize_UnpackSequence(PyObject *seq, _Py_CODEUNIT *instr, int oparg)
SPECIALIZATION_FAIL(UNPACK_SEQUENCE, SPEC_FAIL_EXPECTED_ERROR);
goto failure;
}
_Py_SET_OPCODE(*instr, UNPACK_SEQUENCE_LIST);
_py_set_opocde(instr, UNPACK_SEQUENCE_LIST);
goto success;
}
SPECIALIZATION_FAIL(UNPACK_SEQUENCE, unpack_sequence_fail_kind(seq));
failure:
STAT_INC(UNPACK_SEQUENCE, failure);
_Py_SET_OPCODE(*instr, UNPACK_SEQUENCE);
_py_set_opocde(instr, UNPACK_SEQUENCE);
cache->counter = adaptive_counter_backoff(cache->counter);
return;
success:
@ -2126,26 +2126,26 @@ _Py_Specialize_ForIter(PyObject *iter, _Py_CODEUNIT *instr, int oparg)
_Py_CODEUNIT next = instr[1+INLINE_CACHE_ENTRIES_FOR_ITER];
int next_op = _PyOpcode_Deopt[_Py_OPCODE(next)];
if (tp == &PyListIter_Type) {
_Py_SET_OPCODE(*instr, FOR_ITER_LIST);
_py_set_opocde(instr, FOR_ITER_LIST);
goto success;
}
else if (tp == &PyTupleIter_Type) {
_Py_SET_OPCODE(*instr, FOR_ITER_TUPLE);
_py_set_opocde(instr, FOR_ITER_TUPLE);
goto success;
}
else if (tp == &PyRangeIter_Type && next_op == STORE_FAST) {
_Py_SET_OPCODE(*instr, FOR_ITER_RANGE);
_py_set_opocde(instr, FOR_ITER_RANGE);
goto success;
}
else if (tp == &PyGen_Type && oparg <= SHRT_MAX) {
assert(_Py_OPCODE(instr[oparg + INLINE_CACHE_ENTRIES_FOR_ITER + 1]) == END_FOR);
_Py_SET_OPCODE(*instr, FOR_ITER_GEN);
_py_set_opocde(instr, FOR_ITER_GEN);
goto success;
}
SPECIALIZATION_FAIL(FOR_ITER,
_PySpecialization_ClassifyIterator(iter));
STAT_INC(FOR_ITER, failure);
_Py_SET_OPCODE(*instr, FOR_ITER);
_py_set_opocde(instr, FOR_ITER);
cache->counter = adaptive_counter_backoff(cache->counter);
return;
success:

2
Tools/cases_generator/generate_cases.py
View File

@ -205,7 +205,7 @@ class Instruction:
else:
typ = f"uint{bits}_t "
func = f"read_u{bits}"
out.emit(f"{typ}{ceffect.name} = {func}(next_instr + {cache_offset});")
out.emit(f"{typ}{ceffect.name} = {func}(&next_instr[{cache_offset}].cache);")
cache_offset += ceffect.size
assert cache_offset == self.cache_offset + cache_adjust