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bpo-44337: Port LOAD_ATTR to PEP 659 adaptive interpreter (GH-26595)

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* Specialize LOAD_ATTR with  LOAD_ATTR_SLOT and LOAD_ATTR_SPLIT_KEYS

* Move dict-common.h to internal/pycore_dict.h

* Add LOAD_ATTR_WITH_HINT specialized opcode.

* Quicken in function if loopy

* Specialize LOAD_ATTR for module attributes.

* Add specialization stats
This commit is contained in:
Mark Shannon 2021-06-10 08:46:01 +01:00 • committed by GitHub
parent 309ab61602
commit e117c02837
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14 changed files with 511 additions and 221 deletions
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22
Objects/dictobject.c
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@ -117,7 +117,7 @@ converting the dict to the combined table.
#include "pycore_object.h" // _PyObject_GC_TRACK()
#include "pycore_pyerrors.h" // _PyErr_Fetch()
#include "pycore_pystate.h" // _PyThreadState_GET()
#include "dict-common.h"
#include "pycore_dict.h"
#include "stringlib/eq.h" // unicode_eq()
/*[clinic input]
@ -285,24 +285,6 @@ _PyDict_DebugMallocStats(FILE *out)
state->numfree, sizeof(PyDictObject));
}
#define DK_LOG_SIZE(dk) ((dk)->dk_log2_size)
#if SIZEOF_VOID_P > 4
#define DK_SIZE(dk) (((int64_t)1)<<DK_LOG_SIZE(dk))
#define DK_IXSIZE(dk) \
(DK_LOG_SIZE(dk) <= 7 ? \
1 : DK_LOG_SIZE(dk) <= 15 ? \
2 : DK_LOG_SIZE(dk) <= 31 ? \
4 : sizeof(int64_t))
#else
#define DK_SIZE(dk) (1<<DK_LOG_SIZE(dk))
#define DK_IXSIZE(dk) \
(DK_LOG_SIZE(dk) <= 7 ? \
1 : DK_LOG_SIZE(dk) <= 15 ? \
2 : sizeof(int32_t))
#endif
#define DK_ENTRIES(dk) \
((PyDictKeyEntry*)(&((int8_t*)((dk)->dk_indices))[DK_SIZE(dk) * DK_IXSIZE(dk)]))
#define DK_MASK(dk) (DK_SIZE(dk)-1)
#define IS_POWER_OF_2(x) (((x) & (x-1)) == 0)
@ -1544,10 +1526,10 @@ delitem_common(PyDictObject *mp, Py_hash_t hash, Py_ssize_t ix,
assert(hashpos >= 0);
mp->ma_used--;
mp->ma_keys->dk_version = 0;
mp->ma_version_tag = DICT_NEXT_VERSION();
ep = &DK_ENTRIES(mp->ma_keys)[ix];
dictkeys_set_index(mp->ma_keys, hashpos, DKIX_DUMMY);
mp->ma_keys->dk_version = 0;
old_key = ep->me_key;
ep->me_key = NULL;
ep->me_value = NULL;