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| author | Guido van Rossum <guido@python.org> | 2024-04-30 18:26:34 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-04-30 18:26:34 -0700 |
| commit | 7d83f7bcc484145596bae1ff015fed0762da345d (patch) | |
| tree | f2f3cbb0cefaa920b319c77da00606fef1db48aa /Python/bytecodes.c | |
| parent | 9c468e2c5dffb6fa9811fd16e70fa0463bdfce5f (diff) | |
| download | cpython-7d83f7bcc484145596bae1ff015fed0762da345d.tar.gz cpython-7d83f7bcc484145596bae1ff015fed0762da345d.zip | |
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.
Diffstat (limited to 'Python/bytecodes.c')
| -rw-r--r-- | Python/bytecodes.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Python/bytecodes.c b/Python/bytecodes.c index 18837aef74d..28766d6d97c 100644 --- a/Python/bytecodes.c +++ b/Python/bytecodes.c @@ -2363,6 +2363,7 @@ dummy_func( CHECK_EVAL_BREAKER(); assert(oparg <= INSTR_OFFSET()); JUMPBY(-oparg); + #ifdef _Py_TIER2 #if ENABLE_SPECIALIZATION _Py_BackoffCounter counter = this_instr[1].counter; if (backoff_counter_triggers(counter) && this_instr->op.code == JUMP_BACKWARD) { @@ -2388,6 +2389,7 @@ dummy_func( ADVANCE_ADAPTIVE_COUNTER(this_instr[1].counter); } #endif /* ENABLE_SPECIALIZATION */ + #endif /* _Py_TIER2 */ } pseudo(JUMP) = { @@ -2401,6 +2403,7 @@ dummy_func( }; tier1 inst(ENTER_EXECUTOR, (--)) { + #ifdef _Py_TIER2 int prevoparg = oparg; CHECK_EVAL_BREAKER(); if (this_instr->op.code != ENTER_EXECUTOR || @@ -2418,6 +2421,9 @@ dummy_func( tstate->previous_executor = Py_None; Py_INCREF(executor); GOTO_TIER_TWO(executor); + #else + Py_FatalError("ENTER_EXECUTOR is not supported in this build"); + #endif /* _Py_TIER2 */ } replaced op(_POP_JUMP_IF_FALSE, (cond -- )) { |