Merge branch 'PHP-7.4'

* PHP-7.4:
  Fixed bug #78973

Author: nikic

Zend/tests/bug78973.phpt

@@ -0,0 +1,17 @@
+--TEST--
+Bug #78973: Destructor during CV freeing causes segfault if opline never saved
+--FILE--
+<?php
+
+function test($x) {
+}
+test(new class {
+    public function __destruct() {
+        debug_print_backtrace();
+    }
+});
+
+?>
+--EXPECTF--
+#0  class@anonymous->__destruct() called at [%s:4]
+#1  test() called at [%s:5]

Zend/zend_vm_def.h

@@ -2738,6 +2738,7 @@ ZEND_VM_HOT_HELPER(zend_leave_helper, ANY, ANY)
 {
 	zend_execute_data *old_execute_data;
 	uint32_t call_info = EX_CALL_INFO();
+	SAVE_OPLINE();
 
 	if (EXPECTED((call_info & (ZEND_CALL_CODE|ZEND_CALL_TOP|ZEND_CALL_HAS_SYMBOL_TABLE|ZEND_CALL_FREE_EXTRA_ARGS|ZEND_CALL_ALLOCATED)) == 0)) {
 		i_free_compiled_variables(execute_data);

Zend/zend_vm_execute.h

@@ -1084,6 +1084,7 @@ static zend_never_inline ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL zend_leave_helper
 {
 	zend_execute_data *old_execute_data;
 	uint32_t call_info = EX_CALL_INFO();
+	SAVE_OPLINE();
 
 	if (EXPECTED((call_info & (ZEND_CALL_CODE|ZEND_CALL_TOP|ZEND_CALL_HAS_SYMBOL_TABLE|ZEND_CALL_FREE_EXTRA_ARGS|ZEND_CALL_ALLOCATED)) == 0)) {
 		i_free_compiled_variables(execute_data);
@@ -51458,6 +51459,7 @@ ZEND_API void execute_ex(zend_execute_data *ex)
 {
 	zend_execute_data *old_execute_data;
 	uint32_t call_info = EX_CALL_INFO();
+	SAVE_OPLINE();
 
 	if (EXPECTED((call_info & (ZEND_CALL_CODE|ZEND_CALL_TOP|ZEND_CALL_HAS_SYMBOL_TABLE|ZEND_CALL_FREE_EXTRA_ARGS|ZEND_CALL_ALLOCATED)) == 0)) {
 		i_free_compiled_variables(execute_data);