--- old/src/share/vm/opto/library_call.cpp	2016-10-24 05:13:08.597023083 -0700
+++ new/src/share/vm/opto/library_call.cpp	2016-10-24 05:13:08.468022307 -0700
@@ -2636,8 +2636,13 @@
   Compile::AliasType* alias_type = C->alias_type(adr_type);
   assert(alias_type->index() != Compile::AliasIdxBot, "no bare pointers here");
 
-  assert(alias_type->adr_type() == TypeRawPtr::BOTTOM || alias_type->adr_type() == TypeOopPtr::BOTTOM ||
-         alias_type->basic_type() != T_ILLEGAL, "field, array element or unknown");
+  // Only field, array element or unknown locations are supported.
+  if (alias_type->adr_type() != TypeRawPtr::BOTTOM &&
+      alias_type->adr_type() != TypeOopPtr::BOTTOM &&
+      alias_type->basic_type() == T_ILLEGAL) {
+    return false;
+  }
+
   bool mismatched = false;
   BasicType bt = alias_type->basic_type();
   if (bt != T_ILLEGAL) {
@@ -2960,12 +2965,6 @@
     newval   = argument(4);  // type: oop, int, or long
   }
 
-  // Null check receiver.
-  receiver = null_check(receiver);
-  if (stopped()) {
-    return true;
-  }
-
   // Build field offset expression.
   // We currently rely on the cookies produced by Unsafe.xxxFieldOffset
   // to be plain byte offsets, which are also the same as those accepted
@@ -2977,8 +2976,6 @@
   const TypePtr *adr_type = _gvn.type(adr)->isa_ptr();
 
   Compile::AliasType* alias_type = C->alias_type(adr_type);
-  assert(alias_type->adr_type() == TypeRawPtr::BOTTOM || alias_type->adr_type() == TypeOopPtr::BOTTOM ||
-         alias_type->basic_type() != T_ILLEGAL, "field, array element or unknown");
   BasicType bt = alias_type->basic_type();
   if (bt != T_ILLEGAL &&
       ((bt == T_OBJECT || bt == T_ARRAY) != (type == T_OBJECT))) {
@@ -2998,6 +2995,12 @@
     }
   }
 
+  // Null check receiver.
+  receiver = null_check(receiver);
+  if (stopped()) {
+    return true;
+  }
+
   int alias_idx = C->get_alias_index(adr_type);
 
   // Memory-model-wise, a LoadStore acts like a little synchronized