Improved branch prediction and code locality

Added assertion

Removed workaraouns for inconsistent zvals (REFCOUNTED+INTERNED). They should be fixed now.

Reverted incomplete fix and too strict asserts.

Change checks that should be always true into ZEND_ASSERT() (some edge cases may be trapped here).

AST don't have to be COPYABLE anymore.

Always use IS_CONSTANT_AST (IS_CONSTANT is removed).

Changed zend_ast_ref structure to use only one allocation, removing dichotomy between heap/arena ASTs.

Merge branch 'PHP-7.0' into PHP-7.1

* PHP-7.0:
Properly update string type flags

Properly update string type flags

Merge branch 'PHP-7.0' into PHP-7.1

* PHP-7.0:
Revert "Properly update string type flags"

Revert "Properly update string type flags"

This reverts commit 99b1a62d559f993ed02c50e6a4298c4bd2dcd33c.

Merge branch 'PHP-7.0' into PHP-7.1

* PHP-7.0:
Properly update string type flags

Properly update string type flags

Update copyright headers to 2017

Update copyright headers to 2017

Make zval_ptr_dtor / _zval_dtor_func more robust

In particular, allow arrays with refcount>1, like we already allow
for all other types. _zval_dtor_func is now the same as
_zval_dtor

Make zval_ptr_dtor / _zval_dtor_func more robust

In particular, allow arrays with refcount>1, like we already allow
for all other types. _zval_dtor_func is now the same as
_zval_dtor_func_for_ptr with an extra refcount decrement check at
the start. At this point we might as well drop it...

Cherry-pick of ded69ee6e6039d56ee7b65b1a578ed1e3d1859da from
PHP-7.1.

show more ...

Reimplemented Bob's commit bac6fdb0c52c924e726c5a78de8858bf27b6586b without insignificant renaming and white-space changes

Revert "Refactor zval cleanup into single function"

This reverts commit bac6fdb0c52c924e726c5a78de8858bf27b6586b.

Refactor zval cleanup into single function

Also use zval_ptr_dtor_nogc() everywhere in Zend in favor of zval_dtor()

Reset IMMUTABLE flag when copy_ctor'ing AST

Make zval_ptr_dtor / _zval_dtor_func more robust

In particular, allow arrays with refcount>1, like we already allow
for all other types. _zval_dtor_func is now the same as
_zval_dtor

Make zval_ptr_dtor / _zval_dtor_func more robust

In particular, allow arrays with refcount>1, like we already allow
for all other types. _zval_dtor_func is now the same as
_zval_dtor_func_for_ptr with an extra refcount decrement check at
the start. At this point we might as well drop it...

show more ...

Merge branch 'PHP-7.0'

bump year which is missed in rev 49493a2

Introduce BIND_LEXICAL

This opcodes inserts a local CV into the closure static variable
table. This replaces the previous mechanism of having static
variables marked as LEXICAL, whic

Introduce BIND_LEXICAL

This opcodes inserts a local CV into the closure static variable
table. This replaces the previous mechanism of having static
variables marked as LEXICAL, which perform a symtable lookup
during copying.

This means a) functions which contain closures no longer have to
rebuild their symtable (better performance) and b) we can now track
used variables in SSA.

show more ...