src/cpu/x86/vm/vm_version_x86.cpp

*** 1,7 ****
  /*
!  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 581,590 ****
--- 581,601 ----
      if (!FLAG_IS_DEFAULT(UseAESIntrinsics))
        warning("AES intrinsics are not available on this CPU");
      FLAG_SET_DEFAULT(UseAESIntrinsics, false);
    }
  
+   // GHASH/GCM intrinsics
+   if (UseCLMUL && (UseSSE > 2)) {
+     if (FLAG_IS_DEFAULT(UseGHASHIntrinsics)) {
+       UseGHASHIntrinsics = true;
+     }
+   } else if (UseGHASHIntrinsics) {
+     if (!FLAG_IS_DEFAULT(UseGHASHIntrinsics))
+       warning("GHASH intrinsic requires CLMUL and SSE2 instructions on this CPU");
+     FLAG_SET_DEFAULT(UseGHASHIntrinsics, false);
+   }
+ 
    if (UseSHA) {
      warning("SHA instructions are not available on this CPU");
      FLAG_SET_DEFAULT(UseSHA, false);
    }
    if (UseSHA1Intrinsics || UseSHA256Intrinsics || UseSHA512Intrinsics) {