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gh-93429: MergeLOAD_METHOD back intoLOAD_ATTR#93430

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Merged
markshannon merged 17 commits intopython:mainfromFidget-Spinner:load_attr_load_method
Jun 14, 2022
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7ea8f66
Merge LOAD_METHOD back into LOAD_ATTR
Fidget-SpinnerJun 2, 2022
51e34f1
📜🤖 Added by blurb_it.
blurb-it[bot]Jun 2, 2022
7e8dd23
Remove LOAD_ATTR_METHOD_MODULE
Fidget-SpinnerJun 2, 2022
c95fb97
Merge branch 'load_attr_load_method' of https://github.com/Fidget-Spi…
Fidget-SpinnerJun 2, 2022
e0eb7ee
Make LOAD_METHOD a virtual instruction
Fidget-SpinnerJun 7, 2022
c912f30
Merge remote-tracking branch 'upstream/main' into load_attr_load_method
Fidget-SpinnerJun 7, 2022
da7fc17
Regen files, add unused field
Fidget-SpinnerJun 7, 2022
65e6aba
Merge specialization code more (stats are still broken)
Fidget-SpinnerJun 7, 2022
a6f9099
Merge remote-tracking branch 'upstream/main' into load_attr_load_method
Fidget-SpinnerJun 7, 2022
b8baebd
fix up stats and comments
Fidget-SpinnerJun 7, 2022
56ea61a
Shrink load method cache
Fidget-SpinnerJun 7, 2022
42340ee
fix formatting
Fidget-SpinnerJun 7, 2022
b0e5b6b
fail automatically when seeing a method
Fidget-SpinnerJun 7, 2022
20b3352
add back METHOD to the switch-case to avoid warnings
Fidget-SpinnerJun 7, 2022
28ddf12
fix a deopt
Fidget-SpinnerJun 8, 2022
6fb980e
PEP 7 nits
Fidget-SpinnerJun 9, 2022
5cc98f2
Apply mark's suggestions
Fidget-SpinnerJun 13, 2022
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12 changes: 5 additions & 7 deletionsInclude/internal/pycore_code.h
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Original file line numberDiff line numberDiff line change
Expand Up@@ -58,18 +58,18 @@ typedef struct {
_Py_CODEUNIT index;
} _PyAttrCache;

#define INLINE_CACHE_ENTRIES_LOAD_ATTR CACHE_ENTRIES(_PyAttrCache)

#define INLINE_CACHE_ENTRIES_STORE_ATTR CACHE_ENTRIES(_PyAttrCache)

typedef struct {
_Py_CODEUNIT counter;
_Py_CODEUNIT type_version[2];
_Py_CODEUNIT keys_version[2];
_Py_CODEUNIT descr[4];
} _PyLoadMethodCache;

#define INLINE_CACHE_ENTRIES_LOAD_METHOD CACHE_ENTRIES(_PyLoadMethodCache)

// MUST be the max(_PyAttrCache, _PyLoadMethodCache)
#define INLINE_CACHE_ENTRIES_LOAD_ATTR CACHE_ENTRIES(_PyLoadMethodCache)

#define INLINE_CACHE_ENTRIES_STORE_ATTR CACHE_ENTRIES(_PyAttrCache)

typedef struct {
_Py_CODEUNIT counter;
Expand DownExpand Up@@ -233,8 +233,6 @@ extern int _Py_Specialize_LoadAttr(PyObject *owner, _Py_CODEUNIT *instr,
extern int _Py_Specialize_StoreAttr(PyObject *owner, _Py_CODEUNIT *instr,
PyObject *name);
extern int _Py_Specialize_LoadGlobal(PyObject *globals, PyObject *builtins, _Py_CODEUNIT *instr, PyObject *name);
extern int _Py_Specialize_LoadMethod(PyObject *owner, _Py_CODEUNIT *instr,
PyObject *name);
extern int _Py_Specialize_BinarySubscr(PyObject *sub, PyObject *container, _Py_CODEUNIT *instr);
extern int _Py_Specialize_StoreSubscr(PyObject *container, PyObject *sub, _Py_CODEUNIT *instr);
extern int _Py_Specialize_Call(PyObject *callable, _Py_CODEUNIT *instr,
Expand Down
80 changes: 38 additions & 42 deletionsInclude/internal/pycore_opcode.h
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61 changes: 29 additions & 32 deletionsInclude/opcode.h
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5 changes: 5 additions & 0 deletionsLib/dis.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -37,6 +37,7 @@
LOAD_GLOBAL = opmap['LOAD_GLOBAL']
BINARY_OP = opmap['BINARY_OP']
JUMP_BACKWARD = opmap['JUMP_BACKWARD']
LOAD_ATTR = opmap['LOAD_ATTR']

CACHE = opmap["CACHE"]

Expand DownExpand Up@@ -463,6 +464,10 @@ def _get_instructions_bytes(code, varname_from_oparg=None,
argval, argrepr = _get_name_info(arg//2, get_name)
if (arg & 1) and argrepr:
argrepr = "NULL + " + argrepr
elif deop == LOAD_ATTR:
argval, argrepr = _get_name_info(arg//2, get_name)
if (arg & 1) and argrepr:
argrepr = "NULL|self + " + argrepr
else:
argval, argrepr = _get_name_info(arg, get_name)
elif deop in hasjabs:
Expand Down
3 changes: 2 additions & 1 deletionLib/importlib/_bootstrap_external.py
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Expand Up@@ -408,6 +408,7 @@ def _write_atomic(path, data, mode=0o666):
# Python 3.12a1 3501 (YIELD_VALUE oparg == stack_depth)
# Python 3.12a1 3502 (LOAD_FAST_CHECK, no NULL-check in LOAD_FAST)
# Python 3.12a1 3503 (Shrink LOAD_METHOD cache)
# Python 3.12a1 3504 (Merge LOAD_METHOD back into LOAD_ATTR)

# Python 3.13 will start with 3550

Expand All@@ -421,7 +422,7 @@ def _write_atomic(path, data, mode=0o666):
# Whenever MAGIC_NUMBER is changed, the ranges in the magic_values array
# in PC/launcher.c must also be updated.

MAGIC_NUMBER = (3503).to_bytes(2, 'little') + b'\r\n'
MAGIC_NUMBER = (3504).to_bytes(2, 'little') + b'\r\n'

_RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little') # For import.c

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