--- old/src/cpu/x86/vm/globals_x86.hpp	2013-05-17 17:13:54.000000000 -0400
+++ new/src/cpu/x86/vm/globals_x86.hpp	2013-05-17 17:13:54.000000000 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2013, 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
@@ -96,6 +96,9 @@
   product(intx, UseAVX, 99,                                                 \
           "Highest supported AVX instructions set on x86/x64")              \
                                                                             \
+  product(bool, UseCLMUL, false,                                            \
+          "Control whether CLMUL instructions can be used on x86/x64")      \
+                                                                            \
   diagnostic(bool, UseIncDec, true,                                         \
           "Use INC, DEC instructions on x86")                               \
                                                                             \
--- old/src/cpu/x86/vm/vm_version_x86.cpp	2013-05-17 17:13:55.000000000 -0400
+++ new/src/cpu/x86/vm/vm_version_x86.cpp	2013-05-17 17:13:54.000000000 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, 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
@@ -446,6 +446,7 @@
                (supports_avx()    ? ", avx" : ""),
                (supports_avx2()   ? ", avx2" : ""),
                (supports_aes()    ? ", aes" : ""),
+               (supports_clmul()    ? ", clmul" : ""),
                (supports_erms()   ? ", erms" : ""),
                (supports_mmx_ext() ? ", mmxext" : ""),
                (supports_3dnow_prefetch() ? ", 3dnowpref" : ""),
@@ -489,6 +490,17 @@
     FLAG_SET_DEFAULT(UseAES, false);
   }
 
+  // Use CLMUL instructions if available.
+  if (supports_clmul()) {
+    if (FLAG_IS_DEFAULT(UseCLMUL)) {
+      UseCLMUL = true;
+    }
+  } else if (UseCLMUL) {
+    if (!FLAG_IS_DEFAULT(UseCLMUL))
+      warning("CLMUL instructions not available on this CPU (AVX may also be required)");
+    FLAG_SET_DEFAULT(UseCLMUL, false);
+  }
+
   // The AES intrinsic stubs require AES instruction support (of course)
   // but also require sse3 mode for instructions it use.
   if (UseAES && (UseSSE > 2)) {
--- old/src/cpu/x86/vm/vm_version_x86.hpp	2013-05-17 17:13:55.000000000 -0400
+++ new/src/cpu/x86/vm/vm_version_x86.hpp	2013-05-17 17:13:55.000000000 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, 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
@@ -61,7 +61,8 @@
     uint32_t value;
     struct {
       uint32_t sse3     : 1,
-                        : 2,
+               clmul    : 1,
+                        : 1,
                monitor  : 1,
                         : 1,
                vmx      : 1,
@@ -249,7 +250,8 @@
     CPU_AVX    = (1 << 17),
     CPU_AVX2   = (1 << 18),
     CPU_AES    = (1 << 19),
-    CPU_ERMS   = (1 << 20) // enhanced 'rep movsb/stosb' instructions
+    CPU_ERMS   = (1 << 20), // enhanced 'rep movsb/stosb' instructions
+    CPU_CLMUL  = (1 << 21) // carryless multiply for CRC
   } cpuFeatureFlags;
 
   enum {
@@ -429,6 +431,8 @@
       result |= CPU_AES;
     if (_cpuid_info.sef_cpuid7_ebx.bits.erms != 0)
       result |= CPU_ERMS;
+    if (_cpuid_info.std_cpuid1_ecx.bits.clmul != 0)
+      result |= CPU_CLMUL;
 
     // AMD features.
     if (is_amd()) {
@@ -555,6 +559,7 @@
   static bool supports_tsc()      { return (_cpuFeatures & CPU_TSC)    != 0; }
   static bool supports_aes()      { return (_cpuFeatures & CPU_AES) != 0; }
   static bool supports_erms()     { return (_cpuFeatures & CPU_ERMS) != 0; }
+  static bool supports_clmul()    { return (_cpuFeatures & CPU_CLMUL) != 0; }
 
   // Intel features
   static bool is_intel_family_core() { return is_intel() &&
--- old/src/share/vm/prims/jvm.cpp	2013-05-17 17:13:56.000000000 -0400
+++ new/src/share/vm/prims/jvm.cpp	2013-05-17 17:13:56.000000000 -0400
@@ -356,6 +356,8 @@
     }
   }
 
+  PUTPROP(props, "sun.zip.clmulSupported", X86_ONLY(UseAVX && UseCLMUL ? "true" :) "false");
+
   // JVM monitoring and management support
   // Add the sun.management.compiler property for the compiler's name
   {