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gh-144145: Track nullness of properties in the Tier 2 JIT optimizer #144122

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Merged
Fidget-Spinner merged 20 commits into from
Jan 30, 2026
Merged

gh-144145: Track nullness of properties in the Tier 2 JIT optimizer #144122

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dfd99d7
Add slots object property tracking for the Tier 2 JIT optimizer
cocolato Jan 20, 2026
7bb2c20
use s_arena to save slots mapping
cocolato Jan 21, 2026
20920fc
fix switch syntax error
cocolato Jan 21, 2026
2e9c5a6
Merge branch 'main' into dev_143414
cocolato Jan 22, 2026
5b4bd5f
fix arena struct
cocolato Jan 22, 2026
6a828d7
support track escape
cocolato Jan 26, 2026
90e4800
check null ptr
cocolato Jan 26, 2026
bf29c13
fix escape check
cocolato Jan 26, 2026
b80bce1
add _STORE_ATTR_SLOT_NULL && rename
cocolato Jan 27, 2026
ec50130
Merge branch 'main' into dev_143414
cocolato Jan 27, 2026
da39868
regen-cases
cocolato Jan 27, 2026
7c0c815
don't track escape in init shim frame
cocolato Jan 28, 2026
873ca91
fix lint
cocolato Jan 28, 2026
8bd0ff9
Merge branch 'main' into dev_143414
cocolato Jan 30, 2026
0a7cb9a
fix escape && add _STORE_ATTR_INSTANCE_VALUE_NULL
cocolato Jan 30, 2026
2f8c2ce
📜🤖 Added by blurb_it.
blurb-it[bot] Jan 30, 2026
ddbb9c5
Delete Misc/NEWS.d/next/Core_and_Builtins/2026-01-30-09-42-30.gh-issu…
cocolato Jan 30, 2026
9c91e86
📜🤖 Added by blurb_it.
blurb-it[bot] Jan 30, 2026
f74096b
add comment
cocolato Jan 30, 2026
a7f00bf
format comment
cocolato Jan 30, 2026
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fix switch syntax error
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@cocolato
cocolato committed Jan 21, 2026
commit 20920fc08779a395308e246037db8fa462355b1d
3 changes: 2 additions & 1 deletion Python/optimizer_symbols.c
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Original file line number Diff line number Diff line change
Expand Up @@ -113,14 +113,15 @@ _PyUOpSymPrint(JitOptRef ref)
case JIT_SYM_COMPACT_INT:
printf("<compact_int at %p>", (void *)sym);
break;
case JIT_SYM_SLOTS_TAG:
case JIT_SYM_SLOTS_TAG: {
PyTypeObject *slots_type = _PyType_LookupByVersion(sym->slots.type_version);
if (slots_type) {
printf("<%s slots[%d] v%u at %p>", slots_type->tp_name, sym->slots.num_slots, sym->slots.type_version, (void *)sym);
} else {
printf("<slots[%d] v%u at %p>", sym->slots.num_slots, sym->slots.type_version, (void *)sym);
}
break;
}
default:
printf("<tag=%d at %p>", sym->tag, (void *)sym);
break;
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