8250902: Implement MD5 Intrinsics on x86

Reviewed-by: kvn, vdeshpande, ascarpino

Author: luhenry

src/hotspot/cpu/aarch64/vm_version_aarch64.cpp

@@ -358,6 +358,11 @@ void VM_Version::get_processor_features() {
     FLAG_SET_DEFAULT(UseFMA, true);
   }
 
+  if (UseMD5Intrinsics) {
+    warning("MD5 intrinsics are not available on this CPU");
+    FLAG_SET_DEFAULT(UseMD5Intrinsics, false);
+  }
+
   if (auxv & (HWCAP_SHA1 | HWCAP_SHA2)) {
     if (FLAG_IS_DEFAULT(UseSHA)) {
       FLAG_SET_DEFAULT(UseSHA, true);

src/hotspot/cpu/arm/vm_version_arm_32.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2020, 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
@@ -209,6 +209,11 @@ void VM_Version::initialize() {
     FLAG_SET_DEFAULT(UseFMA, false);
   }
 
+  if (UseMD5Intrinsics) {
+    warning("MD5 intrinsics are not available on this CPU");
+    FLAG_SET_DEFAULT(UseMD5Intrinsics, false);
+  }
+
   if (UseSHA) {
     warning("SHA instructions are not available on this CPU");
     FLAG_SET_DEFAULT(UseSHA, false);