Fix checksum calculation for opcache

Fixed invalid destructor

year++

year++

Update copyright headers to 2017

Update copyright headers to 2017

Update copyright headers to 2017

further normalizations, uint vs uint32_t

fix merge mistake

yet one more replacement run

- get rid of EG(scope). zend_get_executed_scope() should be used instead.
- ichanged zval_update_constant_ex(). Use IS_TYPE_IMMUTABLE flag on shared constants and AST, instead of "inline_change"

- get rid of EG(scope). zend_get_executed_scope() should be used instead.
- ichanged zval_update_constant_ex(). Use IS_TYPE_IMMUTABLE flag on shared constants and AST, instead of "inline_change" parameter.

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Fixed bug #72014 (Including a file with anonymous classes multiple times leads to fatal error)

Happy new year (Update copyright to 2016)

Implemented the RFC `Support Class Constant Visibility`.

Squashed commit of the following:

commit f11ca0e7a57793fa0e3e7f6d451720e6c42bb0b9
Author: Dmitry Stogov <dmitry@zend.com

Implemented the RFC `Support Class Constant Visibility`.

Squashed commit of the following:

commit f11ca0e7a57793fa0e3e7f6d451720e6c42bb0b9
Author: Dmitry Stogov <dmitry@zend.com>
Date: Tue Dec 8 12:38:42 2015 +0300

Fixed test expectation

commit 211f873f542504d0a0f72b6b5cb23908a1c99a2d
Author: Dmitry Stogov <dmitry@zend.com>
Date: Tue Dec 8 12:28:38 2015 +0300

Embed zend_class_constant.flags into zend_class_constants.value.u2.access_flags

commit 51deab84b2cdbf9cdb1a838cf33b2ee45c61748b
Author: Dmitry Stogov <dmitry@zend.com>
Date: Mon Dec 7 11:18:55 2015 +0300

Fixed issues found by Nikita

commit 544dbd5b47e40d38a8ccb96bc5583e9cb7fdd723
Author: Dmitry Stogov <dmitry@zend.com>
Date: Sat Dec 5 02:41:05 2015 +0300

Refactored immplementation of https://wiki.php.net/rfc/class_const_visibility
@reeze created an RFC here and I emailed internals here and didn't get any responses positive/negative.

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Break dependency between opcache and optimizer. Remove copatibility macros.

opcache: Patch SSE based fast_memcpy() implementation

Use _mm_store_si128() instead of _mm_stream_si128(). This ensures that copied memory
is preserved in data cache, which is good as th

opcache: Patch SSE based fast_memcpy() implementation

Use _mm_store_si128() instead of _mm_stream_si128(). This ensures that copied memory
is preserved in data cache, which is good as the interpretor will start to use this
data without the need to go back to memory. _mm_stream* is intended to be used for
stores where we want to avoid reading data into the cache and the cache pollution;
in our scenario it seems that preserving the data in cache has a positive impact.

Tests on WordPress 4.1 show ~1% performance increase with fast_memcpy() in place
versus standard memcpy() when running php-cgi -T10000 wordpress/index.php.

I also updated SW prefetching on target memory but its contribution is almost negligible.
The address to be prefetched will be used in a couple of cycles (at the next iteration)
while the data from memory will be available in >100 cycles.

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Fixed bug #70067 (Cross-compile failure in opcache when SIZEOF_ZEND_LONG < SIZEOF_SIZE_T)

Fixed Bug #70058 Build fails when building for i386

(I don't have a m32 build env, so this is not tested)

Use ZSTR_ API to access zend_string elements (this is just renaming without semantick changes).

Removed opcache.load_comments configuration directive. Now doc comments loading costs nothing and always enabled.

Use better zend_hash_* functions

Improved script copyining from SHM to process memory

Improved hash table copying

Added experimental (disabled by default) file based opcode cache.

Use new hash iteration API.

Change the error message for colliding class/interface/trait names to be a little more clearer.

C:\> php -r "interface stdClass { }"
Error: Cannot declare interface stdClass, because

Change the error message for colliding class/interface/trait names to be a little more clearer.

C:\> php -r "interface stdClass { }"
Error: Cannot declare interface stdClass, because the name is already in use in Command Line Code on line 1

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Change "Cannot redeclare class X" into "Cannot redeclare class/interface/trait X", meaning that the following:

C:\> php -r "trait A { } trait A { }"

Will now properly print "Cannot

Change "Cannot redeclare class X" into "Cannot redeclare class/interface/trait X", meaning that the following:

C:\> php -r "trait A { } trait A { }"

Will now properly print "Cannot redeclare trait A" instead of "Cannot redeclare class A" to make error messages a tiny bit clearer. Admittedly, a better solution can most likely be made by actually telling what the colliding object is a type of.

Internally this adds a new function:
zend_get_object_type()

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