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The Python programming language

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/ Python/optimizer.c
main
April 28, 2026
H
gh-148571: [JIT] Preserve family-head recorder layouts for specialized opcode families (GH-148730)
Hai Zhu committed
be968c7
April 27, 2026
M
GH-146073: Add fitness to executor dumps. (GH-148959)
Mark Shannon committed
276f474
April 24, 2026
H
gh-146073: Add fitness/exit quality mechanism for JIT trace frontend (GH-148089)
Hai Zhu committed
618b726
April 16, 2026
M
GH-145668: Add FOR_ITER specialization for virtual iterators. Specialize GET_ITER. (GH-147967)
Mark Shannon committed
600f4db
April 14, 2026
H
gh-148378: Allow multiple consecutive recording ops per macro op (GH-148496)
Hai Zhu committed
5ce0fe8
April 4, 2026
K
gh-146073: Revert "gh-146073: Add fitness/exit quality mechanism for JIT trace frontend (GH-147966)" (#148082)
Ken Jin committed
328da67
April 3, 2026
H
gh-146073: Add fitness/exit quality mechanism for JIT trace frontend (GH-147966)
Hai Zhu committed
198b04b
March 18, 2026
H
gh-144888: JIT executor bloom filter wide-type optimization and function Inlining (GH-146114)
Hai Zhu committed
6fe91a9
March 17, 2026
K
gh-146058: Fix _GUARD_CODE_VERSION_* (GH-146060)
Ken Jin committed
966fc81
March 16, 2026
K
gh-127958: Trace from RESUME in the JIT (GH-145905)
Ken Jin committed
3d0824a
H
gh-144888: Replace bloom filter linked lists with continuous arrays to optimize executor invalidating performance (GH-145873)
Hai Zhu committed
81ef1b7
March 10, 2026
H
gh-144681: Fix JIT trace builder assertion failure when conditional branch jump target coincides with fallthrough target (GH-144742)
Hai Zhu committed
66eafc9
March 9, 2026
M
GH-144688: Fix refleaks in JIT when optimization fails (GH-145420)
Mark Shannon committed
27c4970
February 22, 2026
H
gh-145064: Fix JIT assertion failure during CALL_ALLOC_AND_ENTER_INIT side exit (GH-145100)
Hai Zhu committed
fd01372
C
Fix warnings on main (GH-145104)
Chris Eibl committed
5944a53
February 19, 2026
M
GH-144651: Optimize the new uops added when recording values during tracing. (GH-144948)
Mark Shannon committed
3f37b94
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