--- old/src/share/vm/opto/idealGraphPrinter.cpp	2016-07-11 22:46:26.683446815 +0900
+++ new/src/share/vm/opto/idealGraphPrinter.cpp	2016-07-11 22:46:26.546447295 +0900
@@ -466,7 +466,7 @@
     }
 
     if (node->is_Mach()) {
-      print_prop("idealOpcode", (const char *)NodeClassNames[node->as_Mach()->ideal_Opcode()]);
+      print_prop("idealOpcode", (const char *)NodeClassNames[static_cast<uint>(node->as_Mach()->ideal_Opcode())]);
     }
 
     buffer[0] = 0;