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GH-104584: Plugin optimizer API (GH-105100)

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Mark Shannon 2023-06-02 11:46:18 +01:00 • committed by GitHub
parent 601ae09f0c
commit 4bfa01b9d9
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31 changed files with 950 additions and 501 deletions
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32
Python/bytecodes.c
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@ -31,6 +31,7 @@
#include "dictobject.h"
#include "pycore_frame.h"
#include "opcode.h"
#include "optimizer.h"
#include "pydtrace.h"
#include "setobject.h"
#include "structmember.h" // struct PyMemberDef, T_OFFSET_EX
@ -2113,11 +2114,36 @@ dummy_func(
}
inst(JUMP_BACKWARD, (--)) {
assert(oparg < INSTR_OFFSET());
JUMPBY(-oparg);
_Py_CODEUNIT *here = next_instr - 1;
assert(oparg <= INSTR_OFFSET());
JUMPBY(1-oparg);
#if ENABLE_SPECIALIZATION
here[1].cache += (1 << OPTIMIZER_BITS_IN_COUNTER);
if (here[1].cache > tstate->interp->optimizer_backedge_threshold) {
OBJECT_STAT_INC(optimization_attempts);
frame = _PyOptimizer_BackEdge(frame, here, next_instr, stack_pointer);
if (frame == NULL) {
frame = cframe.current_frame;
goto error;
}
here[1].cache &= ((1 << OPTIMIZER_BITS_IN_COUNTER) -1);
goto resume_frame;
}
#endif /* ENABLE_SPECIALIZATION */
CHECK_EVAL_BREAKER();
}
inst(ENTER_EXECUTOR, (--)) {
_PyExecutorObject *executor = (_PyExecutorObject *)frame->f_code->co_executors->executors[oparg];
Py_INCREF(executor);
frame = executor->execute(executor, frame, stack_pointer);
if (frame == NULL) {
frame = cframe.current_frame;
goto error;
}
goto resume_frame;
}
inst(POP_JUMP_IF_FALSE, (cond -- )) {
if (Py_IsFalse(cond)) {
JUMPBY(oparg);
@ -3368,7 +3394,7 @@ dummy_func(
}
inst(INSTRUMENTED_JUMP_BACKWARD, ( -- )) {
INSTRUMENTED_JUMP(next_instr-1, next_instr-oparg, PY_MONITORING_EVENT_JUMP);
INSTRUMENTED_JUMP(next_instr-1, next_instr+1-oparg, PY_MONITORING_EVENT_JUMP);
CHECK_EVAL_BREAKER();
}