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Name	Size	Permission	Date
.libs	[ DIR ]	drwxr-xr-x	2024-03-12 14:21
block_pass.c	62.85 KB	-rw-rw-r--	2022-10-31 11:36
block_pass.lo	343 B	-rw-r--r--	2024-03-12 14:20
block_pass.o	190.32 KB	-rw-r--r--	2024-03-12 14:20
compact_literals.c	26.82 KB	-rw-rw-r--	2022-10-31 11:36
compact_literals.lo	361 B	-rw-r--r--	2024-03-12 14:20
compact_literals.o	119.45 KB	-rw-r--r--	2024-03-12 14:20
compact_vars.c	4.32 KB	-rw-rw-r--	2022-10-31 11:36
compact_vars.lo	349 B	-rw-r--r--	2024-03-12 14:21
compact_vars.o	64.34 KB	-rw-r--r--	2024-03-12 14:21
dce.c	20.51 KB	-rw-rw-r--	2022-10-31 11:36
dce.lo	322 B	-rw-r--r--	2024-03-12 14:21
dce.o	146.59 KB	-rw-r--r--	2024-03-12 14:21
dfa_pass.c	41.96 KB	-rw-rw-r--	2022-10-31 11:36
dfa_pass.lo	337 B	-rw-r--r--	2024-03-12 14:20
dfa_pass.o	160.44 KB	-rw-r--r--	2024-03-12 14:20
escape_analysis.c	14.67 KB	-rw-rw-r--	2022-10-31 11:36
escape_analysis.lo	358 B	-rw-r--r--	2024-03-12 14:21
escape_analysis.o	127.1 KB	-rw-r--r--	2024-03-12 14:21
nop_removal.c	3.75 KB	-rw-rw-r--	2022-10-31 11:36
nop_removal.lo	346 B	-rw-r--r--	2024-03-12 14:20
nop_removal.o	71.97 KB	-rw-r--r--	2024-03-12 14:20
optimize_func_calls.c	10.06 KB	-rw-rw-r--	2022-10-31 11:36
optimize_func_calls.lo	370 B	-rw-r--r--	2024-03-12 14:20
optimize_func_calls.o	92.51 KB	-rw-r--r--	2024-03-12 14:20
optimize_temp_vars_5.c	6.25 KB	-rw-rw-r--	2022-10-31 11:36
optimize_temp_vars_5.lo	373 B	-rw-r--r--	2024-03-12 14:20
optimize_temp_vars_5.o	84.93 KB	-rw-r--r--	2024-03-12 14:20
pass1_5.c	20.27 KB	-rw-rw-r--	2022-10-31 11:36
pass1_5.lo	334 B	-rw-r--r--	2024-03-12 14:20
pass1_5.o	111.31 KB	-rw-r--r--	2024-03-12 14:20
pass2.c	8.03 KB	-rw-rw-r--	2022-10-31 11:36
pass2.lo	328 B	-rw-r--r--	2024-03-12 14:20
pass2.o	78.8 KB	-rw-r--r--	2024-03-12 14:20
pass3.c	13.99 KB	-rw-rw-r--	2022-10-31 11:36
pass3.lo	328 B	-rw-r--r--	2024-03-12 14:20
pass3.o	77.67 KB	-rw-r--r--	2024-03-12 14:20
sccp.c	71.32 KB	-rw-rw-r--	2022-10-31 11:36
sccp.lo	325 B	-rw-r--r--	2024-03-12 14:21
sccp.o	537.66 KB	-rw-r--r--	2024-03-12 14:21
scdf.c	9.43 KB	-rw-rw-r--	2022-10-31 11:36
scdf.h	3.46 KB	-rw-rw-r--	2022-10-31 11:36
scdf.lo	325 B	-rw-r--r--	2024-03-12 14:21
scdf.o	87.01 KB	-rw-r--r--	2024-03-12 14:21
ssa_integrity.c	12.62 KB	-rw-rw-r--	2022-10-31 11:36
zend_call_graph.c	9.27 KB	-rw-rw-r--	2022-10-31 11:36
zend_call_graph.h	3.17 KB	-rw-rw-r--	2022-10-31 11:36
zend_call_graph.lo	358 B	-rw-r--r--	2024-03-12 14:21
zend_call_graph.o	107.78 KB	-rw-r--r--	2024-03-12 14:21
zend_cfg.c	25.16 KB	-rw-rw-r--	2022-10-31 11:36
zend_cfg.h	5.57 KB	-rw-rw-r--	2022-10-31 11:36
zend_cfg.lo	337 B	-rw-r--r--	2024-03-12 14:20
zend_cfg.o	131.81 KB	-rw-r--r--	2024-03-12 14:20
zend_dfg.c	8.25 KB	-rw-rw-r--	2022-10-31 11:36
zend_dfg.h	1.85 KB	-rw-rw-r--	2022-10-31 11:36
zend_dfg.lo	337 B	-rw-r--r--	2024-03-12 14:20
zend_dfg.o	90.51 KB	-rw-r--r--	2024-03-12 14:20
zend_dump.c	35.72 KB	-rw-rw-r--	2022-10-31 11:36
zend_dump.h	2.27 KB	-rw-rw-r--	2022-10-31 11:36
zend_dump.lo	340 B	-rw-r--r--	2024-03-12 14:21
zend_dump.o	182.13 KB	-rw-r--r--	2024-03-12 14:21
zend_func_info.c	113.3 KB	-rw-rw-r--	2022-10-31 11:36
zend_func_info.h	2.59 KB	-rw-rw-r--	2022-10-31 11:36
zend_func_info.lo	355 B	-rw-r--r--	2024-03-12 14:21
zend_func_info.o	202.44 KB	-rw-r--r--	2024-03-12 14:21
zend_inference.c	142.98 KB	-rw-rw-r--	2022-10-31 11:36
zend_inference.h	11.71 KB	-rw-rw-r--	2022-10-31 11:36
zend_inference.lo	355 B	-rw-r--r--	2024-03-12 14:20
zend_inference.o	994.6 KB	-rw-r--r--	2024-03-12 14:20
zend_optimizer.c	49.12 KB	-rw-rw-r--	2022-10-31 11:36
zend_optimizer.h	4.58 KB	-rw-rw-r--	2022-10-31 11:36
zend_optimizer.lo	355 B	-rw-r--r--	2024-03-12 14:20
zend_optimizer.o	227.7 KB	-rw-r--r--	2024-03-12 14:20
zend_optimizer_internal.h	6.36 KB	-rw-rw-r--	2022-10-31 11:36
zend_ssa.c	51.56 KB	-rw-rw-r--	2022-10-31 11:36
zend_ssa.h	11.23 KB	-rw-rw-r--	2022-10-31 11:36
zend_ssa.lo	337 B	-rw-r--r--	2024-03-12 14:20
zend_ssa.o	196.41 KB	-rw-r--r--	2024-03-12 14:20
zend_worklist.h	3.82 KB	-rw-rw-r--	2022-10-31 11:36

Rename

/*
   +----------------------------------------------------------------------+
   | Zend OPcache                                                         |
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Andi Gutmans <andi@php.net>                                 |
   |          Zeev Suraski <zeev@php.net>                                 |
   |          Stanislav Malyshev <stas@zend.com>                          |
   |          Dmitry Stogov <dmitry@php.net>                              |
   +----------------------------------------------------------------------+
*/

/* pass 10:
 * - remove NOPs
 */

#include "php.h"
#include "Optimizer/zend_optimizer.h"
#include "Optimizer/zend_optimizer_internal.h"
#include "zend_API.h"
#include "zend_constants.h"
#include "zend_execute.h"
#include "zend_vm.h"

void zend_optimizer_nop_removal(zend_op_array *op_array, zend_optimizer_ctx *ctx)
{
	zend_op *end, *opline;
	uint32_t new_count, i, shift;
	int j;
	uint32_t *shiftlist;
	ALLOCA_FLAG(use_heap);

shiftlist = (uint32_t *)do_alloca(sizeof(uint32_t) * op_array->last, use_heap);
	i = new_count = shift = 0;
	end = op_array->opcodes + op_array->last;
	for (opline = op_array->opcodes; opline < end; opline++) {

/* Kill JMP-over-NOP-s */
		if (opline->opcode == ZEND_JMP && ZEND_OP1_JMP_ADDR(opline) > op_array->opcodes + i) {
			/* check if there are only NOPs under the branch */
			zend_op *target = ZEND_OP1_JMP_ADDR(opline) - 1;

while (target->opcode == ZEND_NOP) {
				target--;
			}
			if (target == opline) {
				/* only NOPs */
				opline->opcode = ZEND_NOP;
			}
		}

shiftlist[i++] = shift;
		if (opline->opcode == ZEND_NOP) {
			shift++;
		} else {
			if (shift) {
				zend_op *new_opline = op_array->opcodes + new_count;

*new_opline = *opline;
				zend_optimizer_migrate_jump(op_array, new_opline, opline);
			}
			new_count++;
		}
	}

if (shift) {
		op_array->last = new_count;
		end = op_array->opcodes + op_array->last;

/* update JMPs */
		for (opline = op_array->opcodes; opline<end; opline++) {
			zend_optimizer_shift_jump(op_array, opline, shiftlist);
		}

/* update try/catch array */
		for (j = 0; j < op_array->last_try_catch; j++) {
			op_array->try_catch_array[j].try_op -= shiftlist[op_array->try_catch_array[j].try_op];
			op_array->try_catch_array[j].catch_op -= shiftlist[op_array->try_catch_array[j].catch_op];
			if (op_array->try_catch_array[j].finally_op) {
				op_array->try_catch_array[j].finally_op -= shiftlist[op_array->try_catch_array[j].finally_op];
				op_array->try_catch_array[j].finally_end -= shiftlist[op_array->try_catch_array[j].finally_end];
			}
		}

/* update early binding list */
		if (op_array->fn_flags & ZEND_ACC_EARLY_BINDING) {
			uint32_t *opline_num = &ctx->script->first_early_binding_opline;

ZEND_ASSERT(op_array == &ctx->script->main_op_array);
			do {
				*opline_num -= shiftlist[*opline_num];
				opline_num = &op_array->opcodes[*opline_num].result.opline_num;
			} while (*opline_num != (uint32_t)-1);
		}
	}
	free_alloca(shiftlist, use_heap);
}