Fix preload auto globals handling

We need to compute the auto globals mask before EG(symbol_table)
is cleaned out.

ext/opcache/ZendAccelerator.c

@@ -3837,8 +3837,15 @@ static int accel_preload(const char *config)
 	if (ret == SUCCESS) {
 		zend_persistent_script *script;
 		zend_string *filename;
+		int ping_auto_globals_mask;
 		int i;
 
+		if (PG(auto_globals_jit)) {
+			ping_auto_globals_mask = zend_accel_get_auto_globals();
+		} else {
+			ping_auto_globals_mask = zend_accel_get_auto_globals_no_jit();
+		}
+
 		/* Release stored values to avoid dangling pointers */
 		zend_hash_graceful_reverse_destroy(&EG(symbol_table));
 		zend_hash_init(&EG(symbol_table), 0, NULL, ZVAL_PTR_DTOR, 0);
@@ -3859,14 +3866,7 @@ static int accel_preload(const char *config)
 		}
 
 		script = create_persistent_script();
-
-		/* Fill in the ping_auto_globals_mask for the new script. If jit for auto globals is enabled we
-		   will have to ping the used auto global variables before execution */
-		if (PG(auto_globals_jit)) {
-			script->ping_auto_globals_mask = zend_accel_get_auto_globals();
-		} else {
-			script->ping_auto_globals_mask = zend_accel_get_auto_globals_no_jit();
-		}
+		script->ping_auto_globals_mask = ping_auto_globals_mask;
 
 		/* Store all functions and classes in a single pseudo-file */
 		filename = zend_string_init("$PRELOAD$", strlen("$PRELOAD$"), 0);

ext/opcache/tests/preload_005.phpt

@@ -0,0 +1,16 @@
+--TEST--
+Handling of auto globals during preloading
+--INI--
+opcache.enable=1
+opcache.enable_cli=1
+opcache.optimization_level=-1
+opcache.preload={PWD}/preload_globals.inc
+--SKIPIF--
+<?php require_once('skipif.inc'); ?>
+--FILE--
+<?php
+$x = 123;
+var_dump(get_x());
+?>
+--EXPECT--
+int(123)

ext/opcache/tests/preload_globals.inc

@@ -0,0 +1,5 @@
+<?php
+
+function get_x() {
+	return $GLOBALS["x"];
+}