--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/ci/ciSymbol.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 1999, 2012, 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.
+ *
+ * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "ci/ciSymbol.hpp"
+#include "ci/ciUtilities.hpp"
+#include "memory/oopFactory.hpp"
+
+// ------------------------------------------------------------------
+// ciSymbol::ciSymbol
+//
+// Preallocated symbol variant.  Used with symbols from vmSymbols.
+ciSymbol::ciSymbol(Symbol* s, vmSymbols::SID sid)
+  : _symbol(s), _sid(sid)
+{
+  assert(_symbol != NULL, "adding null symbol");
+  _symbol->increment_refcount();  // increment ref count
+  assert(sid_ok(), "must be in vmSymbols");
+}
+
+// Normal case for non-famous symbols.
+ciSymbol::ciSymbol(Symbol* s)
+  : _symbol(s), _sid(vmSymbols::NO_SID)
+{
+  assert(_symbol != NULL, "adding null symbol");
+  _symbol->increment_refcount();  // increment ref count
+  assert(sid_ok(), "must not be in vmSymbols");
+}
+
+// ciSymbol
+//
+// This class represents a Symbol* in the HotSpot virtual
+// machine.
+
+// ------------------------------------------------------------------
+// ciSymbol::as_utf8
+//
+// The text of the symbol as a null-terminated C string.
+const char* ciSymbol::as_utf8() {
+  GUARDED_VM_QUICK_ENTRY(return get_symbol()->as_utf8();)
+}
+
+// The text of the symbol as a null-terminated C string.
+const char* ciSymbol::as_quoted_ascii() {
+  GUARDED_VM_QUICK_ENTRY(return get_symbol()->as_quoted_ascii();)
+}
+
+// ------------------------------------------------------------------
+// ciSymbol::base
+const jbyte* ciSymbol::base() {
+  GUARDED_VM_ENTRY(return get_symbol()->base();)
+}
+
+// ------------------------------------------------------------------
+// ciSymbol::byte_at
+int ciSymbol::byte_at(int i) {
+  GUARDED_VM_ENTRY(return get_symbol()->byte_at(i);)
+}
+
+// ------------------------------------------------------------------
+// ciSymbol::starts_with
+//
+// Tests if the symbol starts with the given prefix.
+bool ciSymbol::starts_with(const char* prefix, int len) const {
+  GUARDED_VM_ENTRY(return get_symbol()->starts_with(prefix, len);)
+}
+
+bool ciSymbol::is_signature_polymorphic_name()  const {
+  GUARDED_VM_ENTRY(return MethodHandles::is_signature_polymorphic_name(get_symbol());)
+}
+
+// ------------------------------------------------------------------
+// ciSymbol::index_of
+//
+// Determines where the symbol contains the given substring.
+int ciSymbol::index_of_at(int i, const char* str, int len) const {
+  GUARDED_VM_ENTRY(return get_symbol()->index_of_at(i, str, len);)
+}
+
+// ------------------------------------------------------------------
+// ciSymbol::utf8_length
+int ciSymbol::utf8_length() {
+  GUARDED_VM_ENTRY(return get_symbol()->utf8_length();)
+}
+
+// ------------------------------------------------------------------
+// ciSymbol::print_impl
+//
+// Implementation of the print method
+void ciSymbol::print_impl(outputStream* st) {
+  st->print(" value=");
+  print_symbol_on(st);
+}
+
+// ------------------------------------------------------------------
+// ciSymbol::print_symbol_on
+//
+// Print the value of this symbol on an outputStream
+void ciSymbol::print_symbol_on(outputStream *st) {
+  GUARDED_VM_ENTRY(get_symbol()->print_symbol_on(st);)
+}
+
+const char* ciSymbol::as_klass_external_name() const {
+  GUARDED_VM_ENTRY(return get_symbol()->as_klass_external_name(););
+}
+
+// ------------------------------------------------------------------
+// ciSymbol::make_impl
+//
+// Make a ciSymbol from a C string (implementation).
+ciSymbol* ciSymbol::make_impl(const char* s) {
+  EXCEPTION_CONTEXT;
+  TempNewSymbol sym = SymbolTable::new_symbol(s, THREAD);
+  if (HAS_PENDING_EXCEPTION) {
+    CLEAR_PENDING_EXCEPTION;
+    CURRENT_THREAD_ENV->record_out_of_memory_failure();
+    return ciEnv::_unloaded_cisymbol;
+  }
+  return CURRENT_THREAD_ENV->get_symbol(sym);
+}
+
+// ------------------------------------------------------------------
+// ciSymbol::make
+//
+// Make a ciSymbol from a C string.
+ciSymbol* ciSymbol::make(const char* s) {
+  GUARDED_VM_ENTRY(return make_impl(s);)
+}