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GH-129709: Clean up tier two (GH-129710)

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Brandt Bucher 2025-02-07 09:52:49 -08:00 • committed by GitHub
parent fbaa6c8ff0
commit 70e387c990
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12 changed files with 97 additions and 348 deletions
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34
Python/ceval.c
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@ -879,9 +879,6 @@ enter_tier_two:
#undef LOAD_IP
#define LOAD_IP(UNUSED) (void)0
#undef GOTO_ERROR
#define GOTO_ERROR(LABEL) goto LABEL ## _tier_two
#ifdef Py_STATS
// Disable these macros that apply to Tier 1 stats when we are in Tier 2
#undef STAT_INC
@ -957,46 +954,17 @@ jump_to_error_target:
_PyOpcode_OpName[frame->instr_ptr->op.code]);
}
#endif
assert (next_uop[-1].format == UOP_FORMAT_JUMP);
assert(next_uop[-1].format == UOP_FORMAT_JUMP);
uint16_t target = uop_get_error_target(&next_uop[-1]);
next_uop = current_executor->trace + target;
goto tier2_dispatch;
error_tier_two:
OPT_HIST(trace_uop_execution_counter, trace_run_length_hist);
assert(next_uop[-1].format == UOP_FORMAT_TARGET);
frame->return_offset = 0; // Don't leave this random
Py_DECREF(current_executor);
tstate->previous_executor = NULL;
next_instr = frame->instr_ptr;
goto error;
jump_to_jump_target:
assert(next_uop[-1].format == UOP_FORMAT_JUMP);
target = uop_get_jump_target(&next_uop[-1]);
next_uop = current_executor->trace + target;
goto tier2_dispatch;
exit_to_tier1_dynamic:
next_instr = frame->instr_ptr;
goto goto_to_tier1;
exit_to_tier1:
assert(next_uop[-1].format == UOP_FORMAT_TARGET);
next_instr = next_uop[-1].target + _PyFrame_GetBytecode(frame);
goto_to_tier1:
#ifdef Py_DEBUG
if (frame->lltrace >= 2) {
printf("DEOPT: [UOp ");
_PyUOpPrint(&next_uop[-1]);
printf(" -> %s]\n",
_PyOpcode_OpName[next_instr->op.code]);
}
#endif
OPT_HIST(trace_uop_execution_counter, trace_run_length_hist);
Py_DECREF(current_executor);
tstate->previous_executor = NULL;
DISPATCH();
#endif // _Py_JIT
#endif // _Py_TIER2