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The Python programming language

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/ Python/optimizer_analysis.c
edeebe22cb6bff3df4196bef3dcbdc7044f54df6
January 9, 2026
K
gh-143421: Allocate all JIT state in one go (GH-143626)
Ken Jin committed
e0fb278
K
gh-143421: Lazily allocate tracer code and opt buffers (GH-143597)
Ken Jin committed
b852236
January 8, 2026
H
gh-143421: Move `JitOptContext` from stack allocation to per-thread heap allocation (GH-143536)
Hai Zhu committed
aeb3403
January 6, 2026
N
gh-134584: Eliminate redundant refcounting from `TO_BOOL_STR` (GH-143417)
Nadeshiko Manju committed
0a5c04a
December 23, 2025
T
gh-134584: Eliminate redundant refcounting from `_CALL_TYPE_1` (GH-135818)
Tomas R. committed
25c294b
December 15, 2025
K
gh-134584: Remove custom float decref ops (GH-142576)
Ken Jin committed
0ac4e6c
December 8, 2025
K
gh-142276: Watch attribute loads when promoting JIT constants (GH-142303)
Ken Jin committed
97f0a1f
December 4, 2025
K
gh-141976: Check stack bounds in JIT optimizer (GH-142201)
Ken Jin committed
b3bf212
December 3, 2025
M
GH-141794: Limit size of generated machine code. (GH-142228)
Mark Shannon committed
62423c9
November 13, 2025
K
gh-139109: A new tracing JIT compiler frontend for CPython (GH-140310)
Ken Jin committed
4fa80ce
September 18, 2025
M
GH-138378: Move globals-to-consts pass into main optimizer pass (GH-138379)
Mark Shannon committed
3b83257
September 15, 2025
K
gh-132732: Clear errors in JIT optimizer on error (GH-136048)
Ken Jin committed
46f823b
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
July 26, 2025
S
GH-132732: Use pure op machinery to optimize `COMPARE_OP_INT/FLOAT/STR` (#137062)
Savannah Bailey committed
f7c380e
June 27, 2025
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 20, 2025
K
gh-135608: Add a null check for attribute promotion to fix a JIT crash (GH-135613)
Ken Jin committed
b53b0c1
June 19, 2025
M
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 23, 2025
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gh-131798: Small improvements to `remove_unneeded_uops` (GH-134554)
Tomas R. committed
71dea74
May 22, 2025
T
GH-131798: Optimize away isinstance calls in the JIT (GH-134369)
Tomas R. committed
484e003
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
May 1, 2025
A
Remove duplicate includes: Python/{bytecodes,ceval,optimizer_analysis}.c (#132622)
Adam Turner committed
f21e42d
April 21, 2025
B
GH-130415: Improve the JIT's unneeded uop removal pass (GH-132333)
Brandt Bucher committed
4f7f72c
April 1, 2025
B
GH-131726: Split up _CHECK_VALIDITY_AND_SET_IP (GH-131810)
Brandt Bucher committed
3a8cefb
M
gh-130704: Strength reduce `LOAD_FAST{_LOAD_FAST}` (#130708)
mpage committed
053c285
March 20, 2025
M
GH-131498: Remove conditional stack effects (GH-131499)
Mark Shannon committed
7ebd71e
March 2, 2025
B
GH-130415: Use boolean guards to narrow types to values in the JIT (GH-130659)
Brandt Bucher committed
7afa476
February 28, 2025
M
GH-130296: Avoid stack transients in four instructions. (GH-130310)
Mark Shannon committed
54965f3
February 7, 2025
B
GH-129715: Remove _DYNAMIC_EXIT (GH-129716)
Brandt Bucher committed
5fa7e1b
January 27, 2025
M
GH-128914: Remove all but one conditional stack effects (GH-129226)
Mark Shannon committed
75b4962
January 23, 2025
S
Revert "GH-128914: Remove conditional stack effects from `bytecodes.c` and the code generators (GH-128918)" (GH-129202)
Sam Gross committed
a10f993
January 20, 2025
M
GH-128914: Remove conditional stack effects from `bytecodes.c` and the code generators (GH-128918)
Mark Shannon committed
ab61d3f
M
GH-128939: Refactor JIT optimize structs (GH-128940)
Mark Shannon committed
f0f7b97
December 13, 2024
M
gh-115999: Specialize loading attributes from modules in free-threaded builds (#127711)
mpage committed
2de048c
November 9, 2024
K
gh-120619: Strength reduce function guards, support 2-operand uop forms (GH-124846)
Ken Jin committed
6293d00
October 9, 2024
M
gh-115999: Refactor `LOAD_GLOBAL` specializations to avoid reloading {globals, builtins} keys (gh-124953)
mpage committed
f978fb4
October 2, 2024
K
gh-120619: Optimize through `_Py_FRAME_GENERAL` (GH-124518)
Ken Jin committed
b84a763
October 1, 2024
S
gh-124296: Remove private dictionary version tag (PEP 699) (#124472)
Sam Gross committed
5aa91c5
September 24, 2024
S
gh-123923: Defer refcounting for `f_funcobj` in `_PyInterpreterFrame` (#124026)
Sam Gross committed
f4997bb
August 1, 2024
M
GH-118095: Add tier two support for BINARY_SUBSCR_GETITEM (GH-120793)
Mark Shannon committed
df13a18
June 26, 2024
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gh-120642: Move private PyCode APIs to the internal C API (#120643)
Victor Stinner committed
9e4a81f
June 25, 2024
M
GH-120982: Add stack check assertions to generated interpreter code (GH-120992)
Mark Shannon committed
8f5a017
June 17, 2024
M
GH-120619: Clean up `RETURN_VALUE` instruction (GH-120624)
Mark Shannon committed
274f844
June 8, 2024
S
gh-119258: Eliminate Type Guards in Tier 2 Optimizer with Watcher (GH-119365)
Saul Shanabrook committed
55402d3
May 10, 2024
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GH-118910: Less boilerplate in the tier 2 optimizer (#118913)
Mark Shannon committed
f5c6b99
May 1, 2024
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gh-118335: Configure Tier 2 interpreter at build time (#118339)
Guido van Rossum committed
7d83f7b
April 25, 2024
M
GH-118095: Handle `RETURN_GENERATOR` in tier 2 (GH-118180)
Mark Shannon committed
f180b31