php-src/Zend
2018-10-09 01:27:39 -04:00
..
tests Merge branch 'PHP-7.3' 2018-10-09 01:27:39 -04:00
acinclude.m4 Replace obsolete AC_TRY_FOO with AC_FOO_IFELSE 2018-07-30 02:36:38 +02:00
bench.php Use hrtime() for timing tests 2018-05-31 15:32:47 +02:00
build.mk Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
buildconf
configure.ac Remove HAVE_STRING_H 2018-09-18 05:32:08 +02:00
header Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
LICENSE
Makefile.am Added ZEND_API zend_cpu_supports 2018-01-16 14:53:00 +08:00
Makefile.frag Change some permissions from 755 to 644 2018-08-28 23:26:49 +02:00
micro_bench.php Use hrtime() for timing tests 2018-05-31 15:32:47 +02:00
README.ZEND_MM
README.ZEND_VM Removed reference to the obsolete zend_vm_use_old_executor() 2018-01-16 10:44:15 +03:00
zend_alloc_sizes.h year++ 2018-01-02 12:57:58 +08:00
zend_alloc.c Merge branch 'PHP-7.3' 2018-09-17 20:21:05 +03:00
zend_alloc.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_API.c Allocate only necessary space for static properties of internal classes in ZTS mode. 2018-10-01 19:05:31 +03:00
zend_API.h Allocate only necessary space for static properties of internal classes in ZTS mode. 2018-10-01 19:05:31 +03:00
zend_arena.h Remove old SVN keywords substitutions 2018-06-16 13:04:30 +02:00
zend_ast.c Fix some misspellings 2018-08-12 16:15:45 +02:00
zend_ast.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_bitset.h Remove old SVN keywords substitutions 2018-06-16 13:04:30 +02:00
zend_build.h year++ 2018-01-02 12:57:58 +08:00
zend_builtin_functions.c Merge branch 'PHP-7.3' 2018-10-06 11:22:24 +02:00
zend_builtin_functions.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_closures.c Rename ZEND_ACC_NO_RT_ARENA into ZEND_ACC_HEAP_RT_CACHE and use it for pseudo-main op_arrays. 2018-10-02 09:10:04 +03:00
zend_closures.h Avoid hash lookups in BIND_STATIC and BIND_LEXICAL opcode handlers. 2018-08-20 16:10:09 +03:00
zend_compile.c Initialize ce->parent_name to NULL 2018-10-07 11:21:48 +02:00
zend_compile.h Remove unused backpatch_count field 2018-10-05 12:14:42 +02:00
zend_config.w32.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_constants.c Fixed ZTS build 2018-07-26 14:01:49 +02:00
zend_constants.h Pack zend_constant.flags and zend_constant.module_number into reserved space inside zend_constant.value. 2018-07-26 12:58:07 +03:00
zend_cpuinfo.c Fixed bug #76825 (Undefined symbols ___cpuid_count) 2018-09-04 17:26:46 +08:00
zend_cpuinfo.h Added SSE3 detection 2018-02-13 16:10:43 +08:00
zend_default_classes.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_dtrace.c Remove old SVN keywords substitutions 2018-06-16 13:04:30 +02:00
zend_dtrace.d Remove old SVN keywords substitutions 2018-06-16 13:04:30 +02:00
zend_dtrace.h Remove old SVN keywords substitutions 2018-06-16 13:04:30 +02:00
zend_errors.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_exceptions.c Fix some misspellings 2018-08-12 16:15:45 +02:00
zend_exceptions.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_execute_API.c Allocate only necessary space for static properties of internal classes in ZTS mode. 2018-10-01 19:05:31 +03:00
zend_execute.c Added assertions 2018-10-03 12:31:47 +03:00
zend_execute.h Move zend_verify_abstract_class() into zend_inheritance.c 2018-08-27 12:56:17 +03:00
zend_extensions.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_extensions.h Fix ZEND_EXTENSION_API_NO 2018-07-31 14:11:39 +02:00
zend_float.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_float.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_gc.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_gc.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_generators.c Merge branch 'PHP-7.2' into PHP-7.3 2018-09-28 19:17:53 +02:00
zend_generators.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_globals_macros.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_globals.h Allocate only necessary space for static properties of internal classes in ZTS mode. 2018-10-01 19:05:31 +03:00
zend_hash.c Use HT_MIN_SIZE when duplicating an empty array 2018-10-05 12:14:42 +02:00
zend_hash.h Turn zend_hash_exists() into inline function 2018-09-19 13:55:53 +03:00
zend_highlight.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_highlight.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_inheritance.c Removed wrong reference counting 2018-10-03 20:15:30 +03:00
zend_inheritance.h Cleanup class linking 2018-08-27 16:40:25 +03:00
zend_ini_parser.y Revert "Implement #67331: Have parse_ini_file add empty entries" 2018-09-15 17:08:58 +02:00
zend_ini_scanner_defs.h Regenerate scanners using re2c version >= 1.0.0 (newer version, at least, produce less code) 2018-07-25 12:49:03 +03:00
zend_ini_scanner.c Merge branch 'PHP-7.2' into PHP-7.3 2018-10-09 01:26:55 -04:00
zend_ini_scanner.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_ini_scanner.l Merge branch 'PHP-7.2' into PHP-7.3 2018-10-09 01:26:55 -04:00
zend_ini.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_ini.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_interfaces.c Replace ZEND_ACC_ANON_BOUND, ZEND_ACC_UNRESOLVED_PARENT and ZEND_ACC_UNRESOLVED_INTERFACES with single ZEND_ACC_LINKED. 2018-09-18 11:41:40 +03:00
zend_interfaces.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_istdiostream.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_iterators.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_iterators.h Use zend_class_entry/zend_function type names instead of _zend_class_entry/_zend_function tags. 2018-08-22 14:01:14 +03:00
zend_language_parser.y Avoid hash lookups in BIND_STATIC and BIND_LEXICAL opcode handlers. 2018-08-20 16:10:09 +03:00
zend_language_scanner_defs.h Remove HAVE_STDARG_H 2018-09-18 05:44:56 +02:00
zend_language_scanner.c Rename ZEND_ACC_NO_RT_ARENA into ZEND_ACC_HEAP_RT_CACHE and use it for pseudo-main op_arrays. 2018-10-02 09:10:04 +03:00
zend_language_scanner.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_language_scanner.l Rename ZEND_ACC_NO_RT_ARENA into ZEND_ACC_HEAP_RT_CACHE and use it for pseudo-main op_arrays. 2018-10-02 09:10:04 +03:00
zend_list.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_list.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_llist.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_llist.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_long.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_modules.h Update API version numbers 2018-07-31 13:33:48 +02:00
zend_multibyte.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_multibyte.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_multiply.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_object_handlers.c Clarify that the get_properties handler is required 2018-10-04 12:46:50 +02:00
zend_object_handlers.h Clarify that the get_properties handler is required 2018-10-04 12:46:50 +02:00
zend_objects_API.c Merge branch 'PHP-7.2' into PHP-7.3 2018-09-28 12:58:59 +02:00
zend_objects_API.h Remove ZEND_OBJECTS_STORE_HANDLERS macro 2018-09-17 20:59:16 +02:00
zend_objects.c Remove unused ZEND_FILE_LINE in i_zval_ptr_dtor 2018-09-16 17:16:26 +02:00
zend_objects.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_opcode.c Rename ZEND_ACC_NO_RT_ARENA into ZEND_ACC_HEAP_RT_CACHE and use it for pseudo-main op_arrays. 2018-10-02 09:10:04 +03:00
zend_operators.c Remove dead code (only IS_ARRAY may relive zendi_convert_scalar_to_number()), and micro-optimization. 2018-09-27 13:11:48 +03:00
zend_operators.h Remove __GNUC__ guard around stddef.h include 2018-09-17 12:08:11 +02:00
zend_portability.h Remove HAVE_STDARG_H 2018-09-18 05:44:56 +02:00
zend_ptr_stack.c Remove HAVE_STDARG_H 2018-09-18 05:44:56 +02:00
zend_ptr_stack.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_range_check.h year++ 2018-01-02 12:57:58 +08:00
zend_signal.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_signal.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_smart_str_public.h year++ 2018-01-02 12:57:58 +08:00
zend_smart_str.c Fastcall calling convention is not comaptible with variable number of arguments 2018-06-06 15:27:18 +03:00
zend_smart_str.h php_json_escape_string() optimization 2018-06-13 18:26:48 +03:00
zend_smart_string_public.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_smart_string.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_sort.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_sort.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_sprintf.c Remove HAVE_STDARG_H 2018-09-18 05:44:56 +02:00
zend_stack.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_stack.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_stream.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_stream.h Refactor stat implementation 2018-08-26 22:30:06 +02:00
zend_string.c Remove old SVN keywords substitutions 2018-06-16 13:04:30 +02:00
zend_string.h Remove old SVN keywords substitutions 2018-06-16 13:04:30 +02:00
zend_strtod_int.h Trailing whitespaces on Zend 2018-01-04 02:41:57 -02:00
zend_strtod.c Merge branch 'PHP-7.0' into PHP-7.1 2017-07-21 11:16:15 +02:00
zend_strtod.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_ts_hash.c Turn zend_hash_exists() into inline function 2018-09-19 13:55:53 +03:00
zend_ts_hash.h Turn zend_hash_exists() into inline function 2018-09-19 13:55:53 +03:00
zend_type_info.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_types.h Clarify that the get_properties handler is required 2018-10-04 12:46:50 +02:00
zend_variables.c Remove unnecessary destroy wrappers 2018-09-16 17:16:26 +02:00
zend_variables.h Remove unused ZEND_FILE_LINE in i_zval_ptr_dtor 2018-09-16 17:16:26 +02:00
zend_virtual_cwd.c Refactor php_sys_readlink 2018-10-03 18:56:55 +02:00
zend_virtual_cwd.h Refactor php_sys_readlink 2018-10-03 18:56:55 +02:00
zend_vm_def.h Use zend_hash_find() instead of zend_hash_exists() 2018-09-19 13:55:27 +03:00
zend_vm_execute.h Use zend_hash_find() instead of zend_hash_exists() 2018-09-19 13:55:27 +03:00
zend_vm_execute.skl Added VM instrumentation ability 2018-02-19 16:42:02 +03:00
zend_vm_gen.php Make PHP development tools files executable 2018-09-17 00:02:36 +02:00
zend_vm_handlers.h Keep information about unresolved interfaces in zend_class_entry->interface_names. 2018-08-23 17:16:28 +03:00
zend_vm_opcodes.c Keep information about unresolved interfaces in zend_class_entry->interface_names. 2018-08-23 17:16:28 +03:00
zend_vm_opcodes.h Keep information about unresolved interfaces in zend_class_entry->interface_names. 2018-08-23 17:16:28 +03:00
zend_vm_trace_handlers.h Added tracer to collect frequency of opcode handler call chains 2018-02-19 16:50:24 +03:00
zend_vm_trace_map.h Allow generation of VM map 2018-02-22 15:31:00 +03:00
zend_vm.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend.c Clarify that the get_properties handler is required 2018-10-04 12:46:50 +02:00
zend.h Allocate only necessary space for static properties of internal classes in ZTS mode. 2018-10-01 19:05:31 +03:00
zend.ico
Zend.m4 Remove HAVE_STDARG_H 2018-09-18 05:44:56 +02:00

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