Prevent recording traces started from usupported VM instruction

Author: dstogov

ext/opcache/jit/zend_jit_vm_helpers.c

@@ -643,6 +643,16 @@ zend_jit_trace_stop ZEND_FASTCALL zend_jit_trace_execute(zend_execute_data *ex,
 		return ZEND_JIT_TRACE_STOP_EXCEPTION;
 	}
 
+	trace_flags = ZEND_OP_TRACE_INFO(opline, offset)->trace_flags;
+	if (trace_flags & ZEND_JIT_TRACE_UNSUPPORTED) {
+		TRACE_END(ZEND_JIT_TRACE_END, ZEND_JIT_TRACE_STOP_NOT_SUPPORTED, opline);
+#ifdef HAVE_GCC_GLOBAL_REGS
+		execute_data = save_execute_data;
+		opline = save_opline;
+#endif
+		return ZEND_JIT_TRACE_STOP_NOT_SUPPORTED;
+	}
+
 	if (prev_call) {
 		int ret = zend_jit_trace_record_fake_init_call(prev_call, trace_buffer, idx, is_megamorphic);
 		if (ret < 0) {