--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/ci/ciUtilities.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,106 @@
+/*
+ * Copyright 1999-2007 Sun Microsystems, Inc.  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.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+// The following routines and definitions are used internally in the
+// compiler interface.
+
+
+// Add a ci native entry wrapper?
+
+// Bring the compilation thread into the VM state.
+#define VM_ENTRY_MARK                       \
+  CompilerThread* thread=CompilerThread::current(); \
+  ThreadInVMfromNative __tiv(thread);       \
+  ResetNoHandleMark rnhm;                   \
+  HandleMarkCleaner __hm(thread);           \
+  Thread* THREAD = thread;                  \
+  debug_only(VMNativeEntryWrapper __vew;)
+
+
+
+// Bring the compilation thread into the VM state.  No handle mark.
+#define VM_QUICK_ENTRY_MARK                 \
+  CompilerThread* thread=CompilerThread::current(); \
+  ThreadInVMfromNative __tiv(thread);       \
+/*                                          \
+ * [TODO] The NoHandleMark line does nothing but declare a function prototype \
+ * The NoHandkeMark constructor is NOT executed. If the ()'s are   \
+ * removed, causes the NoHandleMark assert to trigger. \
+ * debug_only(NoHandleMark __hm();)         \
+ */                                         \
+  Thread* THREAD = thread;                  \
+  debug_only(VMNativeEntryWrapper __vew;)
+
+
+#define EXCEPTION_CONTEXT \
+  CompilerThread* thread=CompilerThread::current(); \
+  Thread* THREAD = thread;
+
+
+#define CURRENT_ENV                         \
+  ciEnv::current()
+
+// where current thread is THREAD
+#define CURRENT_THREAD_ENV                  \
+  ciEnv::current(thread)
+
+#define IS_IN_VM                            \
+  ciEnv::is_in_vm()
+
+#define ASSERT_IN_VM                        \
+  assert(IS_IN_VM, "must be in vm state");
+
+#define GUARDED_VM_ENTRY(action)            \
+  {if (IS_IN_VM) { action } else { VM_ENTRY_MARK; { action }}}
+
+// Redefine this later.
+#define KILL_COMPILE_ON_FATAL_(result)           \
+  THREAD);                                       \
+  if (HAS_PENDING_EXCEPTION) {                   \
+    if (PENDING_EXCEPTION->klass() ==            \
+        SystemDictionary::threaddeath_klass()) { \
+      /* Kill the compilation. */                \
+      fatal("unhandled ci exception");           \
+      return (result);                           \
+    }                                            \
+    CLEAR_PENDING_EXCEPTION;                     \
+    return (result);                             \
+  }                                              \
+  (0
+
+#define KILL_COMPILE_ON_ANY                      \
+  THREAD);                                       \
+  if (HAS_PENDING_EXCEPTION) {                   \
+    fatal("unhandled ci exception");             \
+    CLEAR_PENDING_EXCEPTION;                     \
+  }                                              \
+(0
+
+
+inline const char* bool_to_str(bool b) {
+  return ((b) ? "true" : "false");
+}
+
+const char* basictype_to_str(BasicType t);
+const char  basictype_to_char(BasicType t);