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/ Python/optimizer_symbols.c
main
April 4, 2026
D
gh-148083: Prevent constant folding when lhs is container types (gh-148090)
Donghee Na committed
853dafe
D
gh-148083: Constant-fold _CONTAINS_OP_SET for frozenset (gh-148084)
Donghee Na committed
289f19a
K
gh-131798: split recursion check to _CHECK_RECURSION_LIMIT and combine checks (GH-148070)
Kumar Aditya committed
e7bf8ea
March 28, 2026
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gh-146381: Constant-fold frozendict subscript lookups via REPLACE_OPCODE_IF_EVALUATES_PURE (gh-146490)
Donghee Na committed
5992238
March 27, 2026
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gh-146388: Add null check for `sym_new(ctx)` in `make_bottom` (GH-146389)
Brandon committed
c8ee196
March 22, 2026
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gh-143414: Implement unique reference tracking for JIT, optimize unpacking of such tuples (GH-144300)
reiden committed
e36f8db
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gh-146261: Fix bug in `_Py_uop_sym_set_func_version` (GH-146291)
Sacul committed
1ceb1fb
March 20, 2026
K
gh-146099: Optimize _GUARD_CODE_VERSION+IP via function version symbols (GH-146101)
Ken Jin committed
acfb452
March 3, 2026
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gh-145214: Narrow _GUARD_TOS_ANY_{SET,DICT} by using probable type (gh-145215)
Donghee Na committed
6908372
February 19, 2026
M
GH-144651: Optimize the new uops added when recording values during tracing. (GH-144948)
Mark Shannon committed
3f37b94
February 5, 2026
M
GH-144179: Use recorded values to make optimizer more robust (GH-144437)
Mark Shannon committed
b53fc7c
February 2, 2026
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gh-144145: Revert PR#144122 for performance and potential bugs. (GH-144391)
Hai Zhu committed
ebbb2ca
January 30, 2026
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gh-144280: Add missing predicate symbol to case-switch (GH-144298)
reiden committed
a704832
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gh-144145: Track nullness of properties in the Tier 2 JIT optimizer (GH-144122)
Hai Zhu committed
1dc12b2
January 24, 2026
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gh-130415: Narrow types to constants in branches involving specialized comparisons with a constant (GH-144150)
reiden committed
6d972e0
January 22, 2026
R
gh-130415: Narrowing to constants in branches involving `is` comparisons with a constant (GH-143895)
reiden committed
0b08438
January 17, 2026
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gh-143946: Show `JitOptSymbol` on abstract stack when set PYTHON_OPT_DEBUG > 4 (GH-143957)
Hai Zhu committed
61ec66a
January 2, 2026
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gh-134584: JIT: Remove redundant refcount from STORE_FAST (GH-143336)
Ken Jin committed
f7a03bb
November 13, 2025
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gh-139109: A new tracing JIT compiler frontend for CPython (GH-140310)
Ken Jin committed
4fa80ce
October 11, 2025
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gh-111489: Remove _PyTuple_FromArray() alias (#139973)
Victor Stinner committed
166cdaa
September 18, 2025
M
GH-138378: Move globals-to-consts pass into main optimizer pass (GH-138379)
Mark Shannon committed
3b83257
September 3, 2025
A
gh-137136: Suppress build warnings when build on Windows with --experimental-jit-interpreter (GH-137137)
AN Long committed
1ff2cbb
August 20, 2025
K
gh-137728 gh-137762: Fix bugs in the JIT with many local variables (GH-137764)
Ken Jin committed
7fda8b6
June 28, 2025
K
gh-132732: Fix up pure types in JIT (GH-136050)
Ken Jin committed
ff7b5d4
June 27, 2025
K
gh-132732: JIT: Only allow compact ints in pure evaluation (GH-136040)
Ken Jin committed
c419af9
K
gh-132732: Automatically constant evaluate pure operations (GH-132733)
Ken Jin committed
695ab61
June 23, 2025
K
gh-134584: Specialize POP_TOP by reference and type in JIT (GH-135761)
Ken Jin committed
569fc68
June 19, 2025
K
gh-135379: Move PyLong_CheckCompact to private header and rename it (GH-135707)
Ken Jin committed
0243260
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GH-135379: Specialize int operations for compact ints only (GH-135668)
Mark Shannon committed
9731dd2
June 17, 2025
K
gh-134584: Decref elimination for float ops in the JIT (GH-134588)
Ken Jin committed
fba5dde
May 22, 2025
B
GH-131798: Optimize cached class attributes and methods in the JIT (GH-134403)
Brandt Bucher committed
ec736e7
May 20, 2025
B
GH-131798: Narrow types more aggressively in the JIT (GH-134373)
Brandt Bucher committed
2f0570c
March 20, 2025
B
GH-131331: Rename "not" to "invert" (GH-131334)
Bénédikt Tran committed
883c2f6
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GH-131498: Remove conditional stack effects (GH-131499)
Mark Shannon committed
7ebd71e
March 17, 2025
M
GH-131238: More refactoring of core header files (GH-131351)
Mark Shannon committed
a45f253
March 4, 2025
A
GH-130415: Narrow str to "" based on boolean tests (GH-130476)
Amit Lavon committed
691354c
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GH-130415: Narrow int to 0 based on boolean tests (GH-130772)
Klaus117 committed
c989e74
March 2, 2025
B
GH-130415: Use boolean guards to narrow types to values in the JIT (GH-130659)
Brandt Bucher committed
7afa476
January 20, 2025
M
GH-128939: Refactor JIT optimize structs (GH-128940)
Mark Shannon committed
f0f7b97
June 26, 2024
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gh-120642: Move private PyCode APIs to the internal C API (#120643)
Victor Stinner committed
9e4a81f
June 8, 2024
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gh-119258: Eliminate Type Guards in Tier 2 Optimizer with Watcher (GH-119365)
Saul Shanabrook committed
55402d3
May 10, 2024
M
GH-118910: Less boilerplate in the tier 2 optimizer (#118913)
Mark Shannon committed
f5c6b99
May 2, 2024
M
GH-118095: Unify the behavior of tier 2 FOR_ITER branch micro-ops (GH-118420)
Mark Shannon committed
72867c9
May 1, 2024
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gh-118335: Configure Tier 2 interpreter at build time (#118339)
Guido van Rossum committed
7d83f7b
April 22, 2024
M
GH-115480: Reduce guard strength for binary ops when type of one operand is known already (GH-118050)
Mark Shannon committed
a6647d1
March 5, 2024
M
GH-115819: Eliminate Boolean guards when value is known (GH-116355)
Mark Shannon committed
0c81ce1
M
GH-115685: Optimize `TO_BOOL` and variants based on truthiness of input. (GH-116311)
Mark Shannon committed
cbf3d38
February 29, 2024
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gh-116088: Insert bottom checks after all sym_set_...() calls (#116089)
Guido van Rossum committed
0656509
February 28, 2024
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gh-115859: Re-enable T2 optimizer pass by default (#116062)
Guido van Rossum committed
3409bc2
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gh-115816: Improve internal symbols API in optimizer (#116028)
Guido van Rossum committed
e2a3e4b