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bpo-46841: Move the cache for LOAD_GLOBAL inline. (GH-31575)

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Mark Shannon 2022-02-28 12:56:29 +00:00 • committed by GitHub
parent da7d99a4de
commit 4558af5a8f
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10 changed files with 284 additions and 232 deletions
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57
Include/internal/pycore_code.h
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@ -26,11 +26,6 @@ typedef struct {
uint32_t dk_version;
} _PyAttrCache;
typedef struct {
uint32_t module_keys_version;
uint32_t builtin_keys_version;
} _PyLoadGlobalCache;
typedef struct {
/* Borrowed ref in LOAD_METHOD */
PyObject *obj;
@ -57,23 +52,35 @@ typedef union {
_PyEntryZero zero;
_PyAdaptiveEntry adaptive;
_PyAttrCache attr;
_PyLoadGlobalCache load_global;
_PyObjectCache obj;
_PyCallCache call;
} SpecializedCacheEntry;
#define INSTRUCTIONS_PER_ENTRY (sizeof(SpecializedCacheEntry)/sizeof(_Py_CODEUNIT))
/* Inline caches */
#define CACHE_ENTRIES(cache) (sizeof(cache)/sizeof(_Py_CODEUNIT))
typedef struct {
_Py_CODEUNIT counter;
_Py_CODEUNIT index;
_Py_CODEUNIT module_keys_version;
_Py_CODEUNIT _m1;
_Py_CODEUNIT builtin_keys_version;
} _PyLoadGlobalCache;
#define INLINE_CACHE_ENTRIES_LOAD_GLOBAL CACHE_ENTRIES(_PyLoadGlobalCache)
typedef struct {
_Py_CODEUNIT counter;
} _PyBinaryOpCache;
#define INLINE_CACHE_ENTRIES_BINARY_OP CACHE_ENTRIES(_PyBinaryOpCache)
typedef struct {
_Py_CODEUNIT counter;
} _PyUnpackSequenceCache;
#define INLINE_CACHE_ENTRIES_BINARY_OP \
(sizeof(_PyBinaryOpCache) / sizeof(_Py_CODEUNIT))
#define INLINE_CACHE_ENTRIES_UNPACK_SEQUENCE \
(sizeof(_PyUnpackSequenceCache) / sizeof(_Py_CODEUNIT))
@ -307,7 +314,7 @@ cache_backoff(_PyAdaptiveEntry *entry) {
extern int _Py_Specialize_LoadAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name, SpecializedCacheEntry *cache);
extern int _Py_Specialize_StoreAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name, SpecializedCacheEntry *cache);
extern int _Py_Specialize_LoadGlobal(PyObject *globals, PyObject *builtins, _Py_CODEUNIT *instr, PyObject *name, SpecializedCacheEntry *cache);
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, SpecializedCacheEntry *cache);
extern int _Py_Specialize_BinarySubscr(PyObject *sub, PyObject *container, _Py_CODEUNIT *instr, SpecializedCacheEntry *cache);
extern int _Py_Specialize_StoreSubscr(PyObject *container, PyObject *sub, _Py_CODEUNIT *instr);
@ -388,6 +395,38 @@ extern PyObject* _Py_GetSpecializationStats(void);
#define OBJECT_STAT_INC(name) ((void)0)
#endif
// Cache values are only valid in memory, so use native endianness.
#ifdef WORDS_BIGENDIAN
static inline void
write32(uint16_t *p, uint32_t val)
{
p[0] = val >> 16;
p[1] = (uint16_t)val;
}
static inline uint32_t
read32(uint16_t *p)
{
return (p[0] << 16) | p[1];
}
#else
static inline void
write32(uint16_t *p, uint32_t val)
{
p[0] = (uint16_t)val;
p[1] = val >> 16;
}
static inline uint32_t
read32(uint16_t *p)
{
return p[0] | (p[1] << 16);
}
#endif
#ifdef __cplusplus
}