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15 Commits

Author SHA1 Message Date
Brandt Bucher 62aeb0ee69
GH-117512: Allow 64-bit JIT operands on 32-bit platforms (GH-117527) 2024-04-06 08:26:43 -07:00
Michael Droettboom 0edde64a41
GH-117457: Correct pystats uop "miss" counts (GH-117477) 2024-04-04 15:49:18 -07:00
Guido van Rossum 060a96f1a9
gh-116968: Reimplement Tier 2 counters (#117144) 
Introduce a unified 16-bit backoff counter type (``_Py_BackoffCounter``),
shared between the Tier 1 adaptive specializer and the Tier 2 optimizer. The
API used for adaptive specialization counters is changed but the behavior is
(supposed to be) identical.

The behavior of the Tier 2 counters is changed:
- There are no longer dynamic thresholds (we never varied these).
- All counters now use the same exponential backoff.
- The counter for ``JUMP_BACKWARD`` starts counting down from 16.
- The ``temperature`` in side exits starts counting down from 64.
 2024-04-04 15:03:27 +00:00
Sam Gross 19c1dd60c5
gh-117323: Make `cell` thread-safe in free-threaded builds (#117330) 
Use critical sections to lock around accesses to cell contents. The critical sections are no-ops in the default (with GIL) build.
 2024-03-29 13:35:43 -04:00
Michael Droettboom 26d328b2ba
GH-117121: Add pystats to JIT builds (GH-117346) 2024-03-28 15:23:08 -07:00
Mark Shannon bf82f77957
GH-116422: Tier2 hot/cold splitting (GH-116813) 
Splits the "cold" path, deopts and exits, from the "hot" path, reducing the size of most jitted instructions, at the cost of slower exits.
 2024-03-26 09:35:11 +00:00
Brandt Bucher 2c82592ab4
GH-116017: Put JIT code and data on the same page (GH-116845) 2024-03-19 08:47:28 -07:00
Ken Jin 41457c7fdb
gh-116381: Remove bad specializations, add fail stats (GH-116464) 
* Remove bad specializations, add fail stats
 2024-03-08 00:21:21 +08:00
Brandt Bucher ffed8d985b
GH-116134: JIT aarch64-pc-windows-msvc (GH-116130) 2024-03-04 10:16:56 -08:00
Brandt Bucher 981f27dcc4
GH-115802: Don't JIT zero-length jumps (GH-116177) 2024-03-04 10:13:10 -08:00
Brandt Bucher f0df35eeca
GH-115802: JIT "small" code for Windows (GH-115964) 2024-02-29 08:11:28 -08:00
Brandt Bucher 7259480957
GH-115802: JIT "small" code for macOS and Linux (GH-115826) 2024-02-26 08:32:44 -08:00
Brandt Bucher 17dab2e572
GH-113464: Clean up JIT stencil generation (GH-115800) 2024-02-22 10:22:23 -08:00
Mark Shannon 7b21403ccd
GH-112354: Initial implementation of warm up on exits and trace-stitching (GH-114142) 2024-02-20 09:39:55 +00:00
Brandt Bucher f6d9e5926b
GH-113464: Add a JIT backend for tier 2 (GH-113465) 
Add an option (--enable-experimental-jit for configure-based builds
or --experimental-jit for PCbuild-based ones) to build an
*experimental* just-in-time compiler, based on copy-and-patch (https://fredrikbk.com/publications/copy-and-patch.pdf).

See Tools/jit/README.md for more information on how to install the required build-time tooling.
 2024-01-28 18:48:48 -08:00