{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"OperandValue::Immediate(bx.const_poison(ibty))"}]}
            OperandValue::Immediate(bx.const_poison(ibty))
            let ibty = bx.cx().immediate_backend_type(layout);
        } else if bx.cx().is_backend_scalar_pair(layout) {