--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cpu/x86/vm/icBuffer_x86.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,66 @@
+/*
+ * Copyright 1997-2006 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.
+ *
+ */
+
+#include "incls/_precompiled.incl"
+#include "incls/_icBuffer_x86.cpp.incl"
+
+int InlineCacheBuffer::ic_stub_code_size() {
+  return NativeMovConstReg::instruction_size +
+         NativeJump::instruction_size +
+         1;
+  // so that code_end can be set in CodeBuffer
+  // 64bit 16 = 5 + 10 bytes + 1 byte
+  // 32bit 11 = 10 bytes + 1 byte
+}
+
+
+
+void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin, oop cached_oop, address entry_point) {
+  ResourceMark rm;
+  CodeBuffer      code(code_begin, ic_stub_code_size());
+  MacroAssembler* masm            = new MacroAssembler(&code);
+  // note: even though the code contains an embedded oop, we do not need reloc info
+  // because
+  // (1) the oop is old (i.e., doesn't matter for scavenges)
+  // (2) these ICStubs are removed *before* a GC happens, so the roots disappear
+  assert(cached_oop == NULL || cached_oop->is_perm(), "must be perm oop");
+  masm->lea(rax, OopAddress((address) cached_oop));
+  masm->jump(ExternalAddress(entry_point));
+}
+
+
+address InlineCacheBuffer::ic_buffer_entry_point(address code_begin) {
+  NativeMovConstReg* move = nativeMovConstReg_at(code_begin);   // creation also verifies the object
+  NativeJump*        jump = nativeJump_at(move->next_instruction_address());
+  return jump->jump_destination();
+}
+
+
+oop InlineCacheBuffer::ic_buffer_cached_oop(address code_begin) {
+  // creation also verifies the object
+  NativeMovConstReg* move = nativeMovConstReg_at(code_begin);
+  // Verifies the jump
+  NativeJump*        jump = nativeJump_at(move->next_instruction_address());
+  return (oop)move->data();
+}