JIT: Disable recursive call optimization for VM without global regist…

…er variables A tail-call to VM handler from recursively called function may lead to pass control to incorrect stack frame.
php · Sep 21, 2021 · 48d050e · 48d050e
1 parent 0510363
commit 48d050e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/ext/opcache/jit/zend_jit_x86.dasc b/ext/opcache/jit/zend_jit_x86.dasc
@@ -10082,7 +10082,7 @@ static int zend_jit_do_fcall(dasm_State **Dst, const zend_op *opline, const zend
 						}
 					}
 
-					if (!trace && op_array == &func->op_array
+					if (GCC_GLOBAL_REGS && !trace && op_array == &func->op_array
 							&& num_args >= op_array->required_num_args) {
 						/* recursive call */
 						if (ZEND_OBSERVER_ENABLED) {