diff -r c2d95df2c54e -r 7cbd1b2c139b hotspot/src/os_cpu/linux_x86/vm/copy_linux_x86.inline.hpp
--- a/hotspot/src/os_cpu/linux_x86/vm/copy_linux_x86.inline.hpp	Mon Oct 19 15:03:58 2015 +0200
+++ b/hotspot/src/os_cpu/linux_x86/vm/copy_linux_x86.inline.hpp	Thu Oct 22 13:07:10 2015 -0400
@@ -30,7 +30,7 @@
   (void)memmove(to, from, count * HeapWordSize);
 #else
   // Includes a zero-count check.
-  intx temp;
+  intx temp = 0;
   __asm__ volatile("        testl   %6,%6         ;"
                    "        jz      7f            ;"
                    "        cmpl    %4,%5         ;"
@@ -88,7 +88,7 @@
   }
 #else
   // Includes a zero-count check.
-  intx temp;
+  intx temp = 0;
   __asm__ volatile("        testl   %6,%6       ;"
                    "        jz      3f          ;"
                    "        cmpl    $32,%6      ;"
@@ -145,7 +145,7 @@
   (void)memmove(to, from, count);
 #else
   // Includes a zero-count check.
-  intx temp;
+  intx temp = 0;
   __asm__ volatile("        testl   %6,%6          ;"
                    "        jz      13f            ;"
                    "        cmpl    %4,%5          ;"