ZEND_PRE_DEC     6119 Zend/zend_compile.c 		zend_emit_op(result, ast->kind == ZEND_AST_PRE_INC ? ZEND_PRE_INC : ZEND_PRE_DEC,
ZEND_PRE_DEC     1319 Zend/zend_vm_def.h ZEND_VM_HANDLER(35, ZEND_PRE_DEC, VAR|CV, ANY)
ZEND_PRE_DEC     1876 ext/opcache/Optimizer/block_pass.c 					case ZEND_PRE_DEC:
ZEND_PRE_DEC      422 ext/opcache/Optimizer/pass3.c 								opline->opcode = ZEND_PRE_DEC;