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[3.12] gh-112356: LOAD_GLOBAL can only include one PUSH_NULL (#112566)

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Dennis Sweeney 2023-11-30 19:35:49 -05:00 • committed by GitHub
parent 4c9da4c964
commit a99305e7fb
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3 changed files with 24 additions and 2 deletions
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Python/flowgraph.c
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@ -1554,9 +1554,9 @@ optimize_basic_block(PyObject *const_cache, basicblock *bb, PyObject *consts)
case KW_NAMES:
break;
case PUSH_NULL:
if (nextop == LOAD_GLOBAL && (inst[1].i_opcode & 1) == 0) {
if (nextop == LOAD_GLOBAL && (bb->b_instr[i+1].i_oparg & 1) == 0) {
INSTR_SET_OP0(inst, NOP);
inst[1].i_oparg |= 1;
bb->b_instr[i+1].i_oparg |= 1;
}
break;
default: