--- a/hotspot/src/cpu/x86/vm/c1_Runtime1_x86.cpp	Mon Nov 03 11:34:13 2014 -0800
+++ b/hotspot/src/cpu/x86/vm/c1_Runtime1_x86.cpp	Wed Oct 29 10:13:24 2014 +0100
@@ -1597,7 +1597,7 @@
         __ movl(rdx, 0x80000000);
         __ xorl(rax, rax);
 #else
-        __ mov64(rax, CONST64(0x8000000000000000));
+        __ mov64(rax, UCONST64(0x8000000000000000));
 #endif // _LP64
         __ jmp(do_return);