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Move predispatch logic from DISPATCH macro to juts before switch. Reduces size of each opocde in interpreter. (GH-28475)

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Mark Shannon 2021-09-29 13:16:13 +01:00 • committed by GitHub
parent 02fdd73a19
commit 2be4c370c6
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1 changed files with 15 additions and 7 deletions
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22
Python/ceval.c
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@ -1297,12 +1297,6 @@ eval_frame_handle_pending(PyThreadState *tstate)
#if USE_COMPUTED_GOTOS
#define TARGET(op) op: TARGET_##op
#define DISPATCH_GOTO() goto *opcode_targets[opcode]
#else
#define TARGET(op) op
#define DISPATCH_GOTO() goto dispatch_opcode
#endif
#define DISPATCH() \
{ \
if (trace_info.cframe.use_tracing OR_DTRACE_LINE OR_LLTRACE) { \
@ -1310,8 +1304,13 @@ eval_frame_handle_pending(PyThreadState *tstate)
} \
f->f_lasti = INSTR_OFFSET(); \
NEXTOPARG(); \
DISPATCH_GOTO(); \
goto *opcode_targets[opcode]; \
}
#else
#define TARGET(op) op
#define DISPATCH() goto predispatch;
#endif
#define CHECK_EVAL_BREAKER() \
if (_Py_atomic_load_relaxed(eval_breaker)) { \
@ -1827,7 +1826,16 @@ main_loop:
}
}
#endif
#if USE_COMPUTED_GOTOS == 0
goto dispatch_opcode;
predispatch:
if (trace_info.cframe.use_tracing OR_DTRACE_LINE OR_LLTRACE) {
goto tracing_dispatch;
}
f->f_lasti = INSTR_OFFSET();
NEXTOPARG();
#endif
dispatch_opcode:
#ifdef DYNAMIC_EXECUTION_PROFILE
#ifdef DXPAIRS