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bpo-44338: Port LOAD_GLOBAL to PEP 659 adaptive interpreter (GH-26638)

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* Add specializations of LOAD_GLOBAL.

* Add more stats.

* Remove old opcache; it is no longer used.

* Add NEWS
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Mark Shannon 2021-06-14 11:04:09 +01:00 • committed by GitHub
parent fafcfff926
commit eecbc7c390
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9 changed files with 209 additions and 337 deletions
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14
Include/cpython/code.h
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@ -106,20 +106,6 @@ struct PyCodeObject {
interpreter. */
union _cache_or_instruction *co_quickened;
/* Per opcodes just-in-time cache
*
* To reduce cache size, we use indirect mapping from opcode index to
* cache object:
* cache = co_opcache[co_opcache_map[next_instr - first_instr] - 1]
*/
// co_opcache_map is indexed by (next_instr - first_instr).
// * 0 means there is no cache for this opcode.
// * n > 0 means there is cache in co_opcache[n-1].
unsigned char *co_opcache_map;
_PyOpcache *co_opcache;
int co_opcache_flag; // used to determine when create a cache.
unsigned char co_opcache_size; // length of co_opcache.
};
/* Masks for co_flags above */