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GH-112354: Initial implementation of warm up on exits and trace-stitching (GH-114142)

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Mark Shannon 2024-02-20 09:39:55 +00:00 • committed by GitHub
parent acda1757bc
commit 7b21403ccd
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GPG key ID: B5690EEEBB952194
29 changed files with 744 additions and 198 deletions
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31
Python/generated_cases.c.h generated
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@ -741,7 +741,8 @@
INSTRUCTION_STATS(CACHE);
TIER_ONE_ONLY
assert(0 && "Executing a cache.");
Py_UNREACHABLE();
Py_FatalError("Executing a cache.");
DISPATCH();
}
TARGET(CALL) {
@ -2369,12 +2370,14 @@
TIER_ONE_ONLY
CHECK_EVAL_BREAKER();
PyCodeObject *code = _PyFrame_GetCode(frame);
current_executor = code->co_executors->executors[oparg & 255];
assert(current_executor->vm_data.index == INSTR_OFFSET() - 1);
assert(current_executor->vm_data.code == code);
assert(current_executor->vm_data.valid);
Py_INCREF(current_executor);
GOTO_TIER_TWO();
_PyExecutorObject *executor = code->co_executors->executors[oparg & 255];
assert(executor->vm_data.index == INSTR_OFFSET() - 1);
assert(executor->vm_data.code == code);
assert(executor->vm_data.valid);
assert(tstate->previous_executor == NULL);
tstate->previous_executor = Py_None;
Py_INCREF(executor);
GOTO_TIER_TWO(executor);
DISPATCH();
}
@ -3262,6 +3265,7 @@
next_instr += 2;
INSTRUCTION_STATS(JUMP_BACKWARD);
/* Skip 1 cache entry */
TIER_ONE_ONLY
CHECK_EVAL_BREAKER();
assert(oparg <= INSTR_OFFSET());
JUMPBY(-oparg);
@ -3283,13 +3287,13 @@
oparg >>= 8;
start--;
}
int optimized = _PyOptimizer_Optimize(frame, start, stack_pointer);
_PyExecutorObject *executor;
int optimized = _PyOptimizer_Optimize(frame, start, stack_pointer, &executor);
if (optimized < 0) goto error;
if (optimized) {
// Rewind and enter the executor:
assert(start->op.code == ENTER_EXECUTOR);
next_instr = start;
this_instr[1].cache &= OPTIMIZER_BITS_MASK;
assert(tstate->previous_executor == NULL);
tstate->previous_executor = Py_None;
GOTO_TIER_TWO(executor);
}
else {
int backoff = this_instr[1].cache & OPTIMIZER_BITS_MASK;
@ -4778,7 +4782,8 @@
INSTRUCTION_STATS(RESERVED);
TIER_ONE_ONLY
assert(0 && "Executing RESERVED instruction.");
Py_UNREACHABLE();
Py_FatalError("Executing RESERVED instruction.");
DISPATCH();
}
TARGET(RESUME) {