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gh-131525: Cache the result of tuple_hash #131529

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Merged
mdboom merged 18 commits into from
Mar 27, 2025
Merged

gh-131525: Cache the result of tuple_hash #131529

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b3c3977
gh-131525: Cache the result of tuple_hash
mdboom Mar 20, 2025
8a1f93e
Fix debug builds
mdboom Mar 20, 2025
1442437
Add blurb
mdboom Mar 20, 2025
9d1c089
Fix formatting
mdboom Mar 20, 2025
40ad9fc
Pre-compute empty tuple singleton
mdboom Mar 21, 2025
9a392ed
Mostly set the cache within tuple_alloc
mdboom Mar 21, 2025
c4fb543
Fixes for TSAN
mdboom Mar 21, 2025
814db9a
Merge remote-tracking branch 'upstream/main' into tuple_hash_cache2
mdboom Mar 21, 2025
c24b33d
Pre-compute empty tuple singleton
mdboom Mar 21, 2025
edcc03d
Merge remote-tracking branch 'origin/tuple_hash_cache2' into tuple_ha…
mdboom Mar 21, 2025
224bef2
Fix for 32-bit platforms
mdboom Mar 21, 2025
23f9f66
Assert that op != NULL in _PyTuple_RESET_HASH_CACHE
mdboom Mar 24, 2025
9ee12f9
Use FT_ATOMIC_STORE_SSIZE_RELAXED macro
mdboom Mar 24, 2025
d2c521a
Merge remote-tracking branch 'upstream/main' into tuple_hash_cache2
mdboom Mar 24, 2025
2c8f077
Update Include/internal/pycore_tuple.h
mdboom Mar 24, 2025
a6edcea
Fix alignment
mdboom Mar 24, 2025
5faa68d
atomic load
mdboom Mar 25, 2025
da6fa30
Update Objects/tupleobject.c
mdboom Mar 26, 2025
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Update Include/internal/pycore_tuple.h 
Co-authored-by: Bénédikt Tran <[email protected]>
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@mdboom @picnixz
mdboom and picnixz authored Mar 24, 2025
commit 2c8f077ebfb39ae8d9b31e94d6adb450d2f1079c
8 changes: 4 additions & 4 deletions Include/internal/pycore_tuple.h
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Original file line number Diff line number Diff line change
Expand Up @@ -33,10 +33,10 @@ typedef struct {
PyTupleObject *it_seq; /* Set to NULL when iterator is exhausted */
} _PyTupleIterObject;

#define _PyTuple_RESET_HASH_CACHE(op) \
do { \
assert(op != NULL); \
_PyTuple_CAST(op)->ob_hash = -1; \
#define _PyTuple_RESET_HASH_CACHE(op) \
do { \
assert(op != NULL); \
_PyTuple_CAST(op)->ob_hash = -1; \
} while (0)

/*
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