--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/zero/register_zero.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2007 Red Hat, Inc.
+ * 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.
+ *
+ */
+
+#ifndef CPU_ZERO_VM_REGISTER_ZERO_HPP
+#define CPU_ZERO_VM_REGISTER_ZERO_HPP
+
+#include "asm/register.hpp"
+#include "vm_version_zero.hpp"
+
+class VMRegImpl;
+typedef VMRegImpl* VMReg;
+
+// Use Register as shortcut
+class RegisterImpl;
+typedef RegisterImpl* Register;
+
+inline Register as_Register(int encoding) {
+ return (Register)(intptr_t) encoding;
+}
+
+// The implementation of integer registers for the zero architecture
+class RegisterImpl : public AbstractRegisterImpl {
+ public:
+ enum {
+ number_of_registers = 0
+ };
+
+ // construction
+ inline friend Register as_Register(int encoding);
+ VMReg as_VMReg();
+
+ // derived registers, offsets, and addresses
+ Register successor() const {
+ return as_Register(encoding() + 1);
+ }
+
+ // accessors
+ int encoding() const {
+ assert(is_valid(), "invalid register");
+ return (intptr_t)this;
+ }
+ bool is_valid() const {
+ return 0 <= (intptr_t) this && (intptr_t)this < number_of_registers;
+ }
+ const char* name() const;
+};
+
+// Use FloatRegister as shortcut
+class FloatRegisterImpl;
+typedef FloatRegisterImpl* FloatRegister;
+
+inline FloatRegister as_FloatRegister(int encoding) {
+ return (FloatRegister)(intptr_t) encoding;
+}
+
+// The implementation of floating point registers for the zero architecture
+class FloatRegisterImpl : public AbstractRegisterImpl {
+ public:
+ enum {
+ number_of_registers = 0
+ };
+
+ // construction
+ inline friend FloatRegister as_FloatRegister(int encoding);
+ VMReg as_VMReg();
+
+ // derived registers, offsets, and addresses
+ FloatRegister successor() const {
+ return as_FloatRegister(encoding() + 1);
+ }
+
+ // accessors
+ int encoding() const {
+ assert(is_valid(), "invalid register");
+ return (intptr_t)this;
+ }
+ bool is_valid() const {
+ return 0 <= (intptr_t) this && (intptr_t)this < number_of_registers;
+ }
+ const char* name() const;
+};
+
+class ConcreteRegisterImpl : public AbstractRegisterImpl {
+ public:
+ enum {
+ number_of_registers = RegisterImpl::number_of_registers +
+ FloatRegisterImpl::number_of_registers
+ };
+
+ static const int max_gpr;
+ static const int max_fpr;
+};
+
+CONSTANT_REGISTER_DECLARATION(Register, noreg, (-1));
+#ifndef DONT_USE_REGISTER_DEFINES
+#define noreg ((Register)(noreg_RegisterEnumValue))
+#endif
+
+#endif // CPU_ZERO_VM_REGISTER_ZERO_HPP