Commit Graph

12 Commits

Author SHA1 Message Date
Victor Stinner e26e0985d9
[3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643) (#121043)
gh-120642: Move private PyCode APIs to the internal C API (#120643)

* Move _Py_CODEUNIT and related functions to pycore_code.h.
* Move _Py_BackoffCounter to pycore_backoff.h.
* Move Include/cpython/optimizer.h content to pycore_optimizer.h.
* Remove Include/cpython/optimizer.h.
* Remove PyUnstable_Replace_Executor().

Rename functions:

* PyUnstable_GetExecutor() => _Py_GetExecutor()
* PyUnstable_GetOptimizer() => _Py_GetOptimizer()
* PyUnstable_SetOptimizer() => _Py_SetTier2Optimizer()
* PyUnstable_Optimizer_NewCounter() => _PyOptimizer_NewCounter()
* PyUnstable_Optimizer_NewUOpOptimizer() => _PyOptimizer_NewUOpOptimizer()

(cherry picked from commit 9e4a81f00f)
2024-06-26 15:35:19 +02:00
Ken Jin 7c7aa5a99c
[3.13] gh-119258: Backport optimizer frame fixes in GH-119365 (GH-120699)
(cherry picked from commit 55402d3)
2024-06-20 23:55:20 +08:00
Mark Shannon 72867c962c
GH-118095: Unify the behavior of tier 2 FOR_ITER branch micro-ops (GH-118420)
* Target _FOR_ITER_TIER_TWO at POP_TOP following the matching END_FOR

* Modify _GUARD_NOT_EXHAUSTED_RANGE, _GUARD_NOT_EXHAUSTED_LIST and _GUARD_NOT_EXHAUSTED_TUPLE so that they also target the POP_TOP following the matching END_FOR
2024-05-02 16:17:59 +01:00
Guido van Rossum 7d83f7bcc4
gh-118335: Configure Tier 2 interpreter at build time (#118339)
The code for Tier 2 is now only compiled when configured
with `--enable-experimental-jit[=yes|interpreter]`.

We drop support for `PYTHON_UOPS` and -`Xuops`,
but you can disable the interpreter or JIT
at runtime by setting `PYTHON_JIT=0`.
You can also build it without enabling it by default
using `--enable-experimental-jit=yes-off`;
enable with `PYTHON_JIT=1`.

On Windows, the `build.bat` script supports
`--experimental-jit`, `--experimental-jit-off`,
`--experimental-interpreter`.

In the C code, `_Py_JIT` is defined as before
when the JIT is enabled; the new variable
`_Py_TIER2` is defined when the JIT *or* the
interpreter is enabled. It is actually a bitmask:
1: JIT; 2: default-off; 4: interpreter.
2024-04-30 18:26:34 -07:00
Mark Shannon a6647d16ab
GH-115480: Reduce guard strength for binary ops when type of one operand is known already (GH-118050) 2024-04-22 13:34:06 +01:00
Mark Shannon 0c81ce1360
GH-115819: Eliminate Boolean guards when value is known (GH-116355) 2024-03-05 15:06:00 +00:00
Mark Shannon cbf3d38cbe
GH-115685: Optimize `TO_BOOL` and variants based on truthiness of input. (GH-116311) 2024-03-05 11:23:46 +00:00
Guido van Rossum 0656509033
gh-116088: Insert bottom checks after all sym_set_...() calls (#116089)
This changes the `sym_set_...()` functions to return a `bool` which is `false`
when the symbol is `bottom` after the operation.

All calls to such functions now check this result and go to `hit_bottom`,
a special error label that prints a different message and then reports
that it wasn't able to optimize the trace. No executor will be produced
in this case.
2024-02-29 18:55:29 +00:00
Guido van Rossum 3409bc29c9
gh-115859: Re-enable T2 optimizer pass by default (#116062)
This undoes the *temporary* default disabling of the T2 optimizer pass in gh-115860.

- Add a new test that reproduces Brandt's example from gh-115859; it indeed crashes before gh-116028 with PYTHONUOPSOPTIMIZE=1
- Re-enable the optimizer pass in T2, stop checking PYTHONUOPSOPTIMIZE
- Rename the env var to disable T2 entirely to PYTHON_UOPS_OPTIMIZE (must be explicitly set to 0 to disable)
- Fix skipIf conditions on tests in test_opt.py accordingly
- Export sym_is_bottom() (for debugging)
- Fix various things in the `_BINARY_OP_` specializations in the abstract interpreter:
  - DECREF(temp)
  - out-of-space check after sym_new_const()
  - add sym_matches_type() checks, so even if we somehow reach a binary op with symbolic constants of the wrong type on the stack we won't trigger the type assert
2024-02-28 22:38:01 +00:00
Guido van Rossum e2a3e4b748
gh-115816: Improve internal symbols API in optimizer (#116028)
- Any `sym_set_...` call that attempts to set conflicting information
  cause the symbol to become `bottom` (contradiction).
- All `sym_is...` and similar calls return false or NULL for `bottom`.
- Everything's tested.
- The tests still pass with `PYTHONUOPSOPTIMIZE=1`.
2024-02-28 17:55:56 +00:00
Mark Shannon 6ecfcfe894
GH-115816: Assorted naming and formatting changes to improve maintainability. (GH-115987)
* Rename _Py_UOpsAbstractInterpContext to _Py_UOpsContext and _Py_UOpsSymType to _Py_UopsSymbol.

* #define shortened form of _Py_uop_... names for improved readability.
2024-02-27 13:25:02 +00:00
Mark Shannon 10fbcd6c5d
GH-115816: Make tier2 optimizer symbols testable, and add a few tests. (GH-115953) 2024-02-27 10:51:26 +00:00