ZEND_VM_SPEC     3878 Zend/zend_vm_def.h #if !defined(ZEND_VM_SPEC) || OP1_TYPE != IS_UNUSED
ZEND_VM_SPEC     4819 Zend/zend_vm_def.h #if !defined(ZEND_VM_SPEC) || (OP1_TYPE != IS_UNUSED)