php7-opcodes.txt

●新規演算子

< ZEND_COALESCE
< ZEND_SPACESHIP

●既存関数の最適化

< ZEND_STRLEN
< ZEND_DEFINED
< ZEND_TYPE_CHECK
< ZEND_ASSERT_CHECK

●関数呼び出しの最適化？

< ZEND_DO_ICALL
< ZEND_DO_UCALL
< ZEND_INIT_DYNAMIC_CALL
< ZEND_INIT_USER_CALL
< ZEND_INIT_FCALL
< ZEND_SEND_ARRAY
< ZEND_SEND_USER

●戻り値の型チェック

< ZEND_VERIFY_RETURN_TYPE

●global $var

< ZEND_BIND_GLOBAL

●ZEND_SEND_VAL/ZEND_SEND_VARの拡張…？

< ZEND_SEND_VAL_EX
< ZEND_SEND_VAR_EX

●ダブルクォートやバッククォートなどの変数展開の最適化？

< ZEND_ROPE_ADD
< ZEND_ROPE_END
< ZEND_ROPE_INIT
< ZEND_FAST_CONCAT

●未調査

< ZEND_FETCH_CLASS_NAME
< ZEND_FETCH_LIST
< ZEND_FE_FETCH_R
< ZEND_FE_FETCH_RW
< ZEND_FE_FREE
< ZEND_FE_RESET_R
< ZEND_FE_RESET_RW

●減った分

> ZEND_ADD_CHAR
> ZEND_ADD_STRING
> ZEND_ADD_VAR
> ZEND_FETCH_DIM_TMP_VAR
> ZEND_FE_FETCH
> ZEND_FE_RESET
> ZEND_INIT_STRING
> ZEND_JMP_SET_VAR
> ZEND_PRINT
> ZEND_QM_ASSIGN_VAR
> ZEND_RAISE_ABSTRACT_ERROR
> ZEND_SWITCH_FREE