--- /dev/null 2015-10-08 07:24:52.000000000 -1000
+++ new/src/jdk.vm.ci/share/classes/jdk.vm.ci.code/src/jdk/vm/ci/code/DebugInfo.java 2015-10-08 07:24:51.000000000 -1000
@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2009, 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.
+ *
+ * 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.
+ */
+package jdk.vm.ci.code;
+
+import java.util.*;
+
+/**
+ * Represents the debugging information for a particular point of execution. This information
+ * includes:
+ *
+ * - a {@linkplain #getBytecodePosition() bytecode position}
+ * - a reference map for registers and stack slots in the current frame
+ * - a map from bytecode locals and operand stack slots to their values or locations from which
+ * their values can be read
+ * - a map from the registers (in the caller's frame) to the slots where they are saved in the
+ * current frame
+ *
+ */
+public final class DebugInfo {
+
+ private final BytecodePosition bytecodePosition;
+ private ReferenceMap referenceMap;
+ @SuppressWarnings("unused") private final VirtualObject[] virtualObjectMapping;
+ private RegisterSaveLayout calleeSaveInfo;
+
+ /**
+ * Creates a new {@link DebugInfo} from the given values.
+ *
+ * @param codePos the {@linkplain BytecodePosition code position} or {@linkplain BytecodeFrame
+ * frame} info
+ * @param virtualObjectMapping the mapping of {@link VirtualObject}s to their real values
+ */
+ public DebugInfo(BytecodePosition codePos, VirtualObject[] virtualObjectMapping) {
+ this.bytecodePosition = codePos;
+ this.virtualObjectMapping = virtualObjectMapping;
+ }
+
+ public DebugInfo(BytecodePosition codePos) {
+ this(codePos, null);
+ }
+
+ public void setReferenceMap(ReferenceMap referenceMap) {
+ this.referenceMap = referenceMap;
+ }
+
+ /**
+ * @return {@code true} if this debug information has a frame
+ */
+ public boolean hasFrame() {
+ return getBytecodePosition() instanceof BytecodeFrame;
+ }
+
+ /**
+ * Gets the deoptimization information for each inlined frame (if available).
+ *
+ * @return {@code null} if no frame de-opt info is {@linkplain #hasFrame() available}
+ */
+ public BytecodeFrame frame() {
+ if (hasFrame()) {
+ return (BytecodeFrame) getBytecodePosition();
+ }
+ return null;
+ }
+
+ @Override
+ public String toString() {
+ return CodeUtil.append(new StringBuilder(100), this, null).toString();
+ }
+
+ /**
+ * @return The code position (including all inlined methods) of this debug info. If this is a
+ * {@link BytecodeFrame} instance, then it is also the deoptimization information for
+ * each inlined frame.
+ */
+ public BytecodePosition getBytecodePosition() {
+ return bytecodePosition;
+ }
+
+ public ReferenceMap getReferenceMap() {
+ return referenceMap;
+ }
+
+ /**
+ * Sets the map from the registers (in the caller's frame) to the slots where they are saved in
+ * the current frame.
+ */
+ public void setCalleeSaveInfo(RegisterSaveLayout calleeSaveInfo) {
+ this.calleeSaveInfo = calleeSaveInfo;
+ }
+
+ /**
+ * Gets the map from the registers (in the caller's frame) to the slots where they are saved in
+ * the current frame. If no such information is available, {@code null} is returned.
+ */
+ public RegisterSaveLayout getCalleeSaveInfo() {
+ return calleeSaveInfo;
+ }
+
+ @Override
+ public int hashCode() {
+ throw new UnsupportedOperationException("hashCode");
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof DebugInfo) {
+ DebugInfo that = (DebugInfo) obj;
+ if (Objects.equals(this.bytecodePosition, that.bytecodePosition) && Objects.equals(this.calleeSaveInfo, that.calleeSaveInfo) && Objects.equals(this.referenceMap, that.referenceMap)) {
+ return true;
+ }
+ }
+ return false;
+ }
+}