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The Python programming language

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/ Python/optimizer.c
7a7521bcfad4a8346d460476de2e3fa11e412477
February 14, 2026
C
fix warnings in jit builds (GH-144817)
Chris Eibl committed
caac966
C
remove unused _PyFunction_LookupByVersion (GH-144814)
Chris Eibl committed
14cbd0e
February 5, 2026
M
GH-144179: Use recorded values to make optimizer more robust (GH-144437)
Mark Shannon committed
b53fc7c
February 2, 2026
M
GH-144179: Add value recording to JIT tracing front-end (GH-144303)
Mark Shannon committed
141fd8b
February 1, 2026
A
Fix unused variable 'COLORS' warning in optimizer.c (#144373)
AN Long committed
db61f62
January 24, 2026
Y
Misc: remove duplicate `instr_frame` assignment in `_PyJit_TryInitializeTracing` (GH-144155)
Yongtao Huang committed
6f57914
January 22, 2026
M
GH-139109: Partial reworking of JIT data structures (GH-144105)
Mark Shannon committed
d77aaa7
January 20, 2026
D
gh-141504: Move PYTHON_UOPS_OPTIMIZE to policy object (GH-144082)
Donghee Na committed
27a7160
January 17, 2026
H
gh-143421: Use new buffer to save optimized uops (GH-143682)
Hai Zhu committed
b4b7324
January 15, 2026
D
gh-141504: Refactor policy object into a single opt_config (gh-143644)
Donghee Na committed
794f758
January 14, 2026
M
GH-143842: Make optimizer color table static (GH-143846)
Mohammad Miadh Angkad committed
499706b
K
gh-143123: Protect against recursive tracer calls/finalization (GH-143126)
Ken Jin committed
e370c8d
M
GH-143613: Add colours and some more edges to executor visualization graph (GH-143809)
Mark Shannon committed
6db952e
H
gh-138050: Use cold flag instead of warm flag in `MAKE_WARM` (GH-143827)
Hai Zhu committed
94dbce1
January 10, 2026
N
gh-143604: Hold strong reference to executor during JIT tracing (GH-143646)
Nadeshiko Manju committed
e2f0160
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 3, 2026
D
gh-141504: Factor out tracing and optimization heuristics into a single object (gh-143381)
Donghee Na committed
12283f6
December 29, 2025
K
gh-143183: Link trace to side exits, rather than stop (GH-143268)
Ken Jin committed
6cb245d
December 28, 2025
K
gh-143183: Rewind stop tracing to previous target (GH-143187)
Ken Jin committed
daa9aa4
December 24, 2025
K
gh-143092: Make CALL_LIST_APPEND and BINARY_OP_INPLACE_ADD_UNICODE normal instructions (GH-143124)
Ken Jin committed
cf6758f
December 23, 2025
M
GH-143026: Fix assertion error in executor management. (GH-143104)
Mark Shannon committed
20aeb3a
December 22, 2025
K
gh-139109: Add terminator to JIT code when halting due to invalid dependencies (#143033)
Ken Jin committed
665d280
C
GH-142513: fix missing return in executor_clear (GH-143073)
Chris Eibl committed
700e9fa
K
gh-142476: Fix Windows crashing with JIT (GH-143021)
Ken Jin committed
9ded3dd
December 19, 2025
S
gh-142476: fix memory leak when creating JIT executors (GH-142492)
Shamil committed
e2a7db7
December 18, 2025
M
GH-142513: Reimplement executor management (GH-142931)
Mark Shannon committed
e4058d7
December 17, 2025
K
gh-142849: Fix segfault in `executor_to_gv` (GH-142885)
Ken Jin committed
fba4584
K
gh-142543: Mark tracer functions as Py_NO_INLINE (GH-142846)
Ken Jin committed
89729f2
December 16, 2025
M
GH-142629: JIT: Fix out of bounds memory read in lltrace (GH-142821)
Mark Shannon committed
92d4aea
December 11, 2025
M
GH-135379: Top of stack caching for the JIT. (GH-135465)
Mark Shannon committed
469f191
December 10, 2025
K
gh-137007: Track executor before any possible deallocations (GH-137016)
Ken Jin committed
97e1901
K
gh-141976: Protect against non-progressing specializations in tracing JIT (GH-141989)
Ken Jin committed
ebf3427
November 15, 2025
K
gh-139109: JIT _EXIT_TRACE to ENTER_EXECUTOR rather than _DEOPT (GH-141573)
Ken Jin committed
ed73c90
November 13, 2025
K
gh-139109: A new tracing JIT compiler frontend for CPython (GH-140310)
Ken Jin committed
4fa80ce
November 12, 2025
M
gh-140936: Fix JIT assertion crash at finalization if some generator is alive (GH-140969)
Mikhail Efimov committed
35ed3e4
October 27, 2025
A
gh-138050: [WIP] JIT - Streamline MAKE_WARM - move coldness check to executor creation (GH-138240)
alm committed
1753ccb
October 14, 2025
M
Correct a simple NULL-check in `optimizer.c`'s `uop_item()` (GH-140069)
Maurycy Pawłowski-Wieroński committed
3490a99
October 11, 2025
V
gh-111489: Remove _PyTuple_FromArray() alias (#139973)
Victor Stinner committed
166cdaa
September 24, 2025
D
gh-133171: Re-enable JUMP_BACKWARD to free-threading build (gh-137800)
Donghee Na committed
c4f21d7
September 18, 2025
M
GH-138378: Move globals-to-consts pass into main optimizer pass (GH-138379)
Mark Shannon committed
3b83257
September 17, 2025
D
gh-137838: Move _PyUOpInstruction buffer to PyInterpreterState (gh-138918)
Donghee Na committed
d873fb4
September 9, 2025
D
gh-137838: Fix JIT trace buffer overrun by increasing possible exit stubs (gh-138177)
Donghee Na committed
5edfe55
August 21, 2025
M
GH-137959: Replace shim code in jitted code with a single trampoline function. (GH-137961)
Mark Shannon committed
a8d9d94
August 14, 2025
S
GH-137573: mark _PyOptimizer_Optimize as no inline (GH-137731)
Sachin Shah committed
c9d7065
August 9, 2025
M
GH-132532: Add new DSL macros to better declare semantics of exits at ends of instructions/uops. (GH-137098)
Mark Shannon committed
af15e1d
August 1, 2025
M
GH-136410: Faster side exits by using a cold exit stub (GH-136411)
Mark Shannon committed
e7b55f5
June 17, 2025
M
GH-135379: Support limited scalar replacement for replicated uops in the JIT code generator. (GH-135563)
Mark Shannon committed
8dd8b5c
May 4, 2025
M
GH-133231: Changes to executor management to support proposed `sys._jit` module (GH-133287)
Mark Shannon committed
ac7d5ba