php-src/Zend
2019-04-30 02:07:02 +03:00
..
tests Fix internal_encoding fallback in mbstring 2019-04-17 14:05:53 +02:00
bench.php Trim trailing whitespace in source code files 2018-10-13 14:17:28 +02:00
header Take out some last remnants of the yearly copyright range 2019-01-30 11:48:30 +01:00
LICENSE Trim trailing whitespace in source code files 2018-10-13 14:17:28 +02:00
Makefile.frag Defragment two Zend related Makefile fragments together 2018-10-21 15:59:16 +02:00
micro_bench.php Trim trailing whitespace in source code files 2018-10-13 14:17:28 +02:00
README.ZEND_MM This option doesn't exist for a long time. 2019-03-11 01:14:14 -07:00
README.ZEND_VM Sync leading and final newlines in source code files 2018-10-14 12:54:08 +02:00
zend_alloc_sizes.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_alloc.c Remove HAVE_SIGNAL_H 2019-04-07 15:55:34 +02:00
zend_alloc.h Implemented a faster way to access predefined TSRM resources - CG(), EG(), etc. 2019-03-14 03:01:01 +03:00
zend_API.c Fix more dl() interned string assertions 2019-04-18 12:14:07 +02:00
zend_API.h Fix typo in TRY_ASSIGN macro name 2019-04-29 09:58:45 +02:00
zend_arena.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_ast.c Revert "Switch to bison location tracking" 2019-03-28 09:29:08 +01:00
zend_ast.h Revert "Switch to bison location tracking" 2019-03-28 09:29:08 +01:00
zend_bitset.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_build.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_builtin_functions.c Deduplicate code in zend_builtin_functions.c 2019-03-22 09:47:09 +01:00
zend_builtin_functions.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_closures.c Closure::fromCallable() supports only regular methods and magic method invoked through __call()/__callStatic(). 2019-03-11 15:39:34 +03:00
zend_closures.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_compile.c Avoid misc uninitialized variable warnings 2019-04-12 15:12:39 +02:00
zend_compile.h Also, use ZEND_ACC_PRELOADED for classes 2019-04-30 02:07:02 +03:00
zend_config.w32.h Remove legacy AC_CHECK_TYPE calls for uint and ulong 2019-03-06 22:49:16 +01:00
zend_constants.c Merge branch 'PHP-7.3' into PHP-7.4 2019-02-12 11:43:53 +01:00
zend_constants.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_cpuinfo.c Update and fix remaining year ranges (2019) 2019-02-08 23:14:29 +01:00
zend_cpuinfo.h Add support for MemorySanitizer 2019-03-06 17:07:38 -08:00
zend_default_classes.c zend_weakrefs 2019-03-12 00:35:35 +01:00
zend_dtrace.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_dtrace.d Take out some last remnants of the yearly copyright range 2019-01-30 11:48:30 +01:00
zend_dtrace.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_errors.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_exceptions.c Merge branch 'PHP-7.3' into PHP-7.4 2019-02-25 13:02:58 +01:00
zend_exceptions.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_execute_API.c execute_data->return_value is not used for internal functions 2019-04-16 00:08:16 +03:00
zend_execute.c Add gcc global register for aarch64 2019-04-22 14:29:30 +03:00
zend_execute.h Backported call frame initialization improvement 2019-04-12 02:35:42 +03:00
zend_extensions.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_extensions.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_float.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_float.h Fix typos in code comments in Zend/ [skip ci] 2019-02-18 17:56:28 +01:00
zend_gc.c fix a spell mistake 2019-04-10 10:45:13 +02:00
zend_gc.h Implemented a faster way to access predefined TSRM resources - CG(), EG(), etc. 2019-03-14 03:01:01 +03:00
zend_generators.c Backported call frame initialization improvement 2019-04-12 02:35:42 +03:00
zend_generators.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_globals_macros.h Implemented a faster way to access predefined TSRM resources - CG(), EG(), etc. 2019-03-14 03:01:01 +03:00
zend_globals.h Revert "Switch to bison location tracking" 2019-03-28 09:29:08 +01:00
zend_hash.c Don't overwrite iterator count during real init 2019-04-16 12:21:20 +02:00
zend_hash.h Merge branch 'PHP-7.3' into PHP-7.4 2019-04-16 12:21:16 +02:00
zend_highlight.c Revert "Switch to bison location tracking" 2019-03-28 09:29:08 +01:00
zend_highlight.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_inheritance.c Treat abstract ctors the same, regardless of origin 2019-03-27 18:09:09 +01:00
zend_inheritance.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_ini_parser.y Merge branch 'PHP-7.3' into PHP-7.4 2019-04-08 11:13:10 +02:00
zend_ini_scanner.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_ini_scanner.l Implemented a faster way to access predefined TSRM resources - CG(), EG(), etc. 2019-03-14 03:01:01 +03:00
zend_ini.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_ini.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_interfaces.c Fixed bug #77633 2019-02-18 13:47:44 +01:00
zend_interfaces.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_istdiostream.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_iterators.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_iterators.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_language_parser.y Revert "Switch to bison location tracking" 2019-03-28 09:29:08 +01:00
zend_language_scanner.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_language_scanner.l Revert "Switch to bison location tracking" 2019-03-28 09:29:08 +01:00
zend_list.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_list.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_llist.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_llist.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_long.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_map_ptr.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_modules.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_multibyte.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_multibyte.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_multiply.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_object_handlers.c Reorder conditions 2019-02-20 02:33:21 +03:00
zend_object_handlers.h Fix typos in code comments in Zend/ [skip ci] 2019-02-18 17:56:28 +01:00
zend_objects_API.c Merge branch 'PHP-7.3' into PHP-7.4 2019-03-18 10:04:59 +01:00
zend_objects_API.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_objects.c zend_weakrefs 2019-03-12 00:35:35 +01:00
zend_objects.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_opcode.c Replace "ZEND_CALL_CTOR" hack by additional live-range 2019-04-12 00:49:45 +03:00
zend_operators.c Make is_identical() functions return zend_bool (instead of int) 2019-04-04 18:18:12 +03:00
zend_operators.h Remove checks for locale.h, setlocale, localeconv 2019-04-07 18:32:54 +02:00
zend_portability.h Remove restrict zend_portability define 2019-04-11 15:32:30 +02:00
zend_ptr_stack.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_ptr_stack.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_range_check.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_signal.c Remove HAVE_SIGNAL_H 2019-04-07 15:55:34 +02:00
zend_signal.h Remove HAVE_SIGNAL_H 2019-04-07 15:55:34 +02:00
zend_smart_str_public.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_smart_str.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_smart_str.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_smart_string_public.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_smart_string.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_sort.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_sort.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_stack.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_stack.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_stream.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_stream.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_string.c Merge branch 'PHP-7.3' into PHP-7.4 2019-04-18 14:27:05 +03:00
zend_string.h Fixed bug #72685 2019-03-18 16:58:48 +01:00
zend_strtod_int.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_strtod.c Avoid uninit warning in dtoa 2019-04-12 15:12:39 +02:00
zend_strtod.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_ts_hash.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_ts_hash.h Fix typos in code comments in Zend/ [skip ci] 2019-02-18 17:56:28 +01:00
zend_type_info.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_types.h Backported call frame initialization improvement 2019-04-12 02:35:42 +03:00
zend_variables.c Remove local variables 2019-02-03 21:03:00 +01:00
zend_variables.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_virtual_cwd.c Implemented a faster way to access predefined TSRM resources - CG(), EG(), etc. 2019-03-14 03:01:01 +03:00
zend_virtual_cwd.h Remove unused TSRM/readdir.h header 2019-04-29 00:51:13 +02:00
zend_vm_def.h Don't initialize return value before calling user functions 2019-04-18 02:31:12 +03:00
zend_vm_execute.h Don't initialize return value before calling user functions 2019-04-18 02:31:12 +03:00
zend_vm_execute.skl Backported call frame initialization improvement 2019-04-12 02:35:42 +03:00
zend_vm_gen.php Merge branch 'PHP-7.3' into PHP-7.4 2019-04-09 01:17:10 +03:00
zend_vm_handlers.h Avoid useless code duplication, because of unused specialization 2019-02-15 17:49:39 +03:00
zend_vm_opcodes.c Avoid useless code duplication, because of unused specialization 2019-02-15 17:49:39 +03:00
zend_vm_opcodes.h Adios, yearly copyright ranges 2019-01-30 11:48:28 +01:00
zend_vm_trace_handlers.h Adios, yearly copyright ranges 2019-01-30 11:48:28 +01:00
zend_vm_trace_map.h Adios, yearly copyright ranges 2019-01-30 11:48:28 +01:00
zend_vm.h Remove local variables 2019-02-03 21:03:00 +01:00
zend_weakrefs.c zend_weakrefs 2019-03-12 00:35:35 +01:00
zend_weakrefs.h Fix duplicate symbols _zend_ce_weakrefs 2019-03-13 11:38:21 +01:00
zend.c Mark zend_bailout() as a noreturn function 2019-04-12 10:41:53 +02:00
zend.h Prepare main branch for PHP 7.3.6 2019-04-16 11:56:03 +02:00
Zend.m4 Add gcc global register for aarch64 2019-04-22 14:29:30 +03:00

ZEND_VM
=======

ZEND_VM architecture allows specializing opcode handlers according to op_type
fields and using different execution methods (call threading, switch threading
and direct threading). As a result ZE2 got more than 20% speedup on raw PHP
code execution (with specialized executor and direct threading execution
method). As in most PHP applications raw execution speed isn't the limiting
factor but system calls and database calls are, your mileage with this patch
will vary.

Most parts of the old zend_execute.c go into zend_vm_def.h. Here you can
find opcode handlers and helpers. The typical opcode handler template looks
like this:

ZEND_VM_HANDLER(<OPCODE-NUMBER>, <OPCODE>, <OP1_TYPES>, <OP2_TYPES>)
{
	<HANDLER'S CODE>
}

<OPCODE-NUMBER> is a opcode number (0, 1, ...)
<OPCODE> is an opcode name (ZEN_NOP, ZEND_ADD, :)
<OP1_TYPES> & <OP2_TYPES> are masks for allowed operand op_types. Specializer
will generate code only for defined combination of types. You can use any
combination of the following op_types UNUSED, CONST, VAR, TMP and  CV also
you can use ANY mask to disable specialization according operand's op_type.
<HANDLER'S CODE> is a handler's code itself. For most handlers it stills the
same as in old zend_execute.c, but now it uses macros to access opcode operands
and some internal executor data.

You can see the conformity of new macros to old code in the following list:

EXECUTE_DATA
	execute_data
ZEND_VM_DISPATCH_TO_HANDLER(<OP>)
	return <OP>_helper(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU)
ZEND_VM_DISPATCH_TO_HELPER(<NAME>)
	return <NAME>(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU)
ZEND_VM_DISPATCH_TO_HELPER_EX(<NAME>,<PARAM>,<VAL>)
	return <NAME>(<VAL>, ZEND_OPCODE_HANDLER_ARGS_PASSTHRU)
ZEND_VM_CONTINUE()
	return 0
ZEND_VM_NEXT_OPCODE()
	NEXT_OPCODE()
ZEND_VM_SET_OPCODE(<TARGET>
	SET_OPCODE(<TARGET>
ZEND_VM_INC_OPCODE()
	INC_OPCOD()
ZEND_VM_RETURN_FROM_EXECUTE_LOOP()
	RETURN_FROM_EXECUTE_LOOP()
ZEND_VM_C_LABEL(<LABEL>):
	<LABEL>:
ZEND_VM_C_GOTO(<LABEL>)
	goto <LABEL>
OP<X>_TYPE
	opline->op<X>.op_type
GET_OP<X>_ZVAL_PTR(<TYPE>)
	get_zval_ptr(&opline->op<X>, EX(Ts), &free_op<X>, <TYPE>)
GET_OP<X>_ZVAL_PTR_PTR(<TYPE>)
	get_zval_ptr_ptr(&opline->op<X>, EX(Ts), &free_op<X>, <TYPE>)
GET_OP<X>_OBJ_ZVAL_PTR(<TYPE>)
	get_obj_zval_ptr(&opline->op<X>, EX(Ts), &free_op<X>, <TYPE>)
GET_OP<X>_OBJ_ZVAL_PTR_PTR(<TYPE>)
	get_obj_zval_ptr_ptr(&opline->op<X>, EX(Ts), &free_op<X>, <TYPE>)
IS_OP<X>_TMP_FREE()
	IS_TMP_FREE(free_op<X>)
FREE_OP<X>()
	FREE_OP(free_op<X>)
FREE_OP<X>_IF_VAR()
	FREE_VAR(free_op<X>)
FREE_OP<X>_VAR_PTR()
	FREE_VAR_PTR(free_op<X>)


Executor's helpers can be defined without parameters or with one parameter.
This is done with the following constructs:

ZEND_VM_HELPER(<HELPER-NAME>, <OP1_TYPES>, <OP2_TYPES>)
{
	<HELPER'S CODE>
}

ZEND_VM_HELPER_EX(<HELPER-NAME>, <OP1_TYPES>, <OP2_TYPES>, <PARAM_SPEC>)
{
	<HELPER'S CODE>
}

Executor's code is generated by PHP script zend_vm_gen.php it uses zend_vm_def.h
and zend_vm_execute.skl as input and produces zend_vm_opcodes.h and
zend_vm_execute.h. The first file is a list of opcode definitions. It is
included from zend_compile.h. The second one is an executor code itself. It is
included from zend_execute.c.

zend_vm_gen.php can produce different kind of executors. You can select
different opcode threading model using --with-vm-kind=CALL|SWITCH|GOTO. You can
disable opcode specialization using --without-specializer. You can include or
exclude old executor together with specialized one using --without-old-executor.
At last you can debug executor using original zend_vm_def.h or generated file
zend_vm_execute.h. Debugging with original file requires --with-lines
option. By default ZE2 uses the following command to generate executor:

$ php zend_vm_gen.php --with-vm-kind=CALL