SET_VAR_SOURCE    539 ext/opcache/Optimizer/block_pass.c # define SET_VAR_SOURCE(opline) Tsource[VAR_NUM(opline->result.var)] = opline
SET_VAR_SOURCE    548 ext/opcache/Optimizer/block_pass.c # define SET_VAR_SOURCE(opline) Tsource[VAR_NUM(ZEND_RESULT(opline).var)] = opline