src/share/vm/opto/graphKit.cpp

rev 7793 : 8073315: Enable gcc -Wtype-limits and fix upcoming issues.
Summary: Relevant fixes in blockOffsetTable.cpp, os_linux.cpp, parCardTableModRefBS.cpp.

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 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.

@@ -3043,16 +3043,11 @@
     // for checkcast and aastore the type of superklass should be exact.
     const TypeOopPtr* obj_type = _gvn.type(obj)->is_oopptr();
     // We may not have profiling here or it may not help us. If we have
     // a speculative type use it to perform an exact cast.
     ciKlass* spec_obj_type = obj_type->speculative_type();
-    if (spec_obj_type != NULL ||
-        (data != NULL &&
-         // Counter has never been decremented (due to cast failure).
-         // ...This is a reasonable thing to expect.  It is true of
-         // all casts inserted by javac to implement generic types.
-         data->as_CounterData()->count() >= 0)) {
+    if (spec_obj_type != NULL || (data != NULL)) {
       cast_obj = maybe_cast_profiled_receiver(not_null_obj, tk->klass(), spec_obj_type, safe_for_replace);
       if (cast_obj != NULL) {
         if (failure_control != NULL) // failure is now impossible
           (*failure_control) = top();
         // adjust the type of the phi to the exact klass: