Refactor error implementation significantly to centralize error mode behavior. Add zend_internal_type_error() function

Executor cleanup: fix GOTO and SWITCH VMs, remove aility to build additional PHP-5.0 compatible VM, hide executor implementation details.

Avoid repeatable strlen() calls

Use cache_slot offsets instead of indexes (simplify run-time instructions)

Implement return types

RFC is documented here: https://wiki.php.net/rfc/return_types

bump year

bump year

Bump year

trailing whitespace removal

Optimized destruction of extra arguments passed to user functions.
If no refcounted arguments are passed, then destruction code is not triggered at all.
(Full rebuild required)

Don't count variadic argument in zend_func.common.num_args. This allows faster CALL/RETURN code.

Added EXPECTED(). Most functions have arguments.

Optimize argument passing handlers:

- predcalculate offsets of passed argument and store it in opline->result.var for ZEND_SEND_*;
- don't update "number of passed arguments" op each ZEN

Optimize argument passing handlers:

- predcalculate offsets of passed argument and store it in opline->result.var for ZEND_SEND_*;
- don't update "number of passed arguments" op each ZEND_SEND_* opcode, store it on call frame creation
- Change ZEND_HANDLE_EXCEPTION to determine "number of passed arguments" in incomplete calls fefore freeing

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first shot remove TSRMLS_* things

Fixed bug #68583 Crash in timeout thread

This replaces the GUI element used for execution timeout handling
on Windows. Instead a timer queue technique is used, which is indeed
a thre

Fixed bug #68583 Crash in timeout thread

This replaces the GUI element used for execution timeout handling
on Windows. Instead a timer queue technique is used, which is indeed
a thread pool. A timer queue timer is a lightweight object handled
but that thread pool and the timer thread spends most of the time
sleeping and waiting for an alert.

Please note also that this introduces neither binary nor source
breach. The custom timeout thread functions are deleted, however
they was not exported throug DLL, so couldn't be used by any
external code. As well they couldn't be used anywhere in the core
except in executor api, because those custom timeout thread
functions they used to operate on static variables which would
be overwritten (and that would blow).

So instead a relatively modern technique is used for the timeout
handling. It's still not perfect because the executor still has to
check EX(timed_out). This can be a topic for an improvement in
master. But brobably can be tricky as currently it seems to be not
possible to signal an individual thread. Also note another issue
that static variables aren't thread safe, but the current timer
implementation is.

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Reduced size of zend_op on 64-bit systems.

the main idea - the smaller the zend_op structure, the lees memory traffic is required to load VM instructions during execution. The patch reduces

Reduced size of zend_op on 64-bit systems.

the main idea - the smaller the zend_op structure, the lees memory traffic is required to load VM instructions during execution. The patch reduces the size of each opcode from 48 to 32 bytes (saves 16 bytes for each opcode, and applications use thousands of opoceds). This reduced the number of CPU cache misses by 12% and improved performance of real-life apps by 1-2%.

The patch affects how constants and jump targets are represented in VM during execution. Previously they were implemented as absolute 64-bit pointers. Now they are relative 32-bit offsets.

In run-time constant now should be accessed as:
RT_CONSTANT(op_array, opine->op1) instead of opline->op1.zv
EX_CONSTANT(opline->op1) instead of opline->op1.zv

Jump targets:
OP_JMP_ADDR(opline, opline->op2) instead of opline->op2.jmp_addr

The patch doesn't change zend_op representation for 32-bit systems. They still use absolute addresses. The compile-time representation is also kept the same.

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Make ZEND_INIT_FCALL keep predcalculted size of necessary stack space in opline->op1.num to avoid its recalculation on each execution.

Moved zend_is_true() from zend_execute.h/zend_execute_API.c into zend_operators.h/zend_operators.c.
Splited the most expensive part of inline i_zend_is_true() into a separate zend_object_is_true(

Moved zend_is_true() from zend_execute.h/zend_execute_API.c into zend_operators.h/zend_operators.c.
Splited the most expensive part of inline i_zend_is_true() into a separate zend_object_is_true().
Replaced zendi_convert_to_long() with cals to zend_is_true().

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Use zend_string* for op_array->arg_info[]->name and op_array->arg_info[]->class_name. For internal functions we still use char*.

Rename EX_VAR_2() into ZEND_CALL_VAR() and EX_VAR_NUM_2() into ZEND_CALL_VAR_NUM().

Pack EX(frame_info) into EX(This).u1.v.reserved. Rename "frame"kind" into "call_kind" and VM_FRAME_... into ZEND_CALL_...

Pack EX(num_args) into EX(This).u2.num_args

Moved i_zval_ptr_dtor() from zend_execute.h to zend_variables.h

Removed useless assert. EG(uninitialized_zval) can't be refcounted.

Reuse zend_assign_to_variable() in zend_std_write_property()