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bpo-46841: Improve the failure stats for COMPARE_OP (GH-31663)

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Brandt Bucher 2022-03-03 11:28:47 -08:00 • committed by GitHub
parent cc400585fa
commit 127797f572
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2
Misc/NEWS.d/next/Core and Builtins/2022-03-03-10-46-13.bpo-46841.7CkuZx.rst Normal file
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@ -0,0 +1,2 @@
Add more detailed specialization failure stats for :opcode:`COMPARE_OP`
followed by :opcode:`EXTENDED_ARG`.

5
Python/specialize.c
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@ -616,6 +616,7 @@ initial_counter_value(void) {
#define SPEC_FAIL_COMPARE_OP_BASEOBJECT 21 #define SPEC_FAIL_COMPARE_OP_BASEOBJECT 21
#define SPEC_FAIL_COMPARE_OP_FLOAT_LONG 22 #define SPEC_FAIL_COMPARE_OP_FLOAT_LONG 22
#define SPEC_FAIL_COMPARE_OP_LONG_FLOAT 23 #define SPEC_FAIL_COMPARE_OP_LONG_FLOAT 23
#define SPEC_FAIL_COMPARE_OP_EXTENDED_ARG 24
/* FOR_ITER */ /* FOR_ITER */
#define SPEC_FAIL_FOR_ITER_GENERATOR 10 #define SPEC_FAIL_FOR_ITER_GENERATOR 10
@ -2088,6 +2089,10 @@ _Py_Specialize_CompareOp(PyObject *lhs, PyObject *rhs, _Py_CODEUNIT *instr,
*instr = _Py_MAKECODEUNIT(COMPARE_OP, oparg); *instr = _Py_MAKECODEUNIT(COMPARE_OP, oparg);
return; return;
#endif #endif
if (next_opcode == EXTENDED_ARG) {
SPECIALIZATION_FAIL(COMPARE_OP, SPEC_FAIL_COMPARE_OP_EXTENDED_ARG);
goto failure;
}
SPECIALIZATION_FAIL(COMPARE_OP, SPEC_FAIL_COMPARE_OP_NOT_FOLLOWED_BY_COND_JUMP); SPECIALIZATION_FAIL(COMPARE_OP, SPEC_FAIL_COMPARE_OP_NOT_FOLLOWED_BY_COND_JUMP);
goto failure; goto failure;
} }