--- old/src/hotspot/cpu/x86/c1_Runtime1_x86.cpp	2018-09-24 22:25:51.823821178 +0200
+++ new/src/hotspot/cpu/x86/c1_Runtime1_x86.cpp	2018-09-24 22:25:51.487821181 +0200
@@ -1123,7 +1123,7 @@
           __ sarl(t0, Klass::_lh_array_tag_shift);
           int tag = ((id == new_type_array_id)
                      ? Klass::_lh_array_tag_type_value
-                     : Klass::_lh_array_tag_obj_value);
+                     : (int) Klass::_lh_array_tag_obj_value);
           __ cmpl(t0, tag);
           __ jcc(Assembler::equal, ok);
           __ stop("assert(is an array klass)");