--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/alloc/trace/TraceAllocationPhase.java	2016-12-09 00:54:11.330744348 -0800
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2015, 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 org.graalvm.compiler.lir.alloc.trace;
+
+import org.graalvm.compiler.core.common.alloc.RegisterAllocationConfig;
+import org.graalvm.compiler.core.common.alloc.Trace;
+import org.graalvm.compiler.core.common.alloc.TraceBuilderResult;
+import org.graalvm.compiler.debug.Debug;
+import org.graalvm.compiler.debug.Debug.Scope;
+import org.graalvm.compiler.debug.DebugCloseable;
+import org.graalvm.compiler.debug.DebugCounter;
+import org.graalvm.compiler.debug.DebugMemUseTracker;
+import org.graalvm.compiler.debug.DebugTimer;
+import org.graalvm.compiler.lir.gen.LIRGenerationResult;
+import org.graalvm.compiler.lir.gen.LIRGeneratorTool.MoveFactory;
+import org.graalvm.compiler.lir.phases.LIRPhase;
+import org.graalvm.compiler.lir.phases.LIRPhase.LIRPhaseStatistics;
+
+import jdk.vm.ci.code.TargetDescription;
+
+public abstract class TraceAllocationPhase<C extends TraceAllocationPhase.TraceAllocationContext> {
+
+    public static class TraceAllocationContext {
+        public final MoveFactory spillMoveFactory;
+        public final RegisterAllocationConfig registerAllocationConfig;
+        public final TraceBuilderResult resultTraces;
+
+        public TraceAllocationContext(MoveFactory spillMoveFactory, RegisterAllocationConfig registerAllocationConfig, TraceBuilderResult resultTraces) {
+            this.spillMoveFactory = spillMoveFactory;
+            this.registerAllocationConfig = registerAllocationConfig;
+            this.resultTraces = resultTraces;
+        }
+    }
+
+    /**
+     * Records time spent within {@link #apply}.
+     */
+    private final DebugTimer timer;
+
+    /**
+     * Records memory usage within {@link #apply}.
+     */
+    private final DebugMemUseTracker memUseTracker;
+
+    /**
+     * Records the number of traces allocated with this phase.
+     */
+    private final DebugCounter allocatedTraces;
+
+    private static final class AllocationStatistics {
+        private final DebugCounter allocatedTraces;
+
+        private AllocationStatistics(Class<?> clazz) {
+            allocatedTraces = Debug.counter("TraceRA[%s]", clazz);
+        }
+    }
+
+    private static final ClassValue<AllocationStatistics> counterClassValue = new ClassValue<AllocationStatistics>() {
+        @Override
+        protected AllocationStatistics computeValue(Class<?> c) {
+            return new AllocationStatistics(c);
+        }
+    };
+
+    public TraceAllocationPhase() {
+        LIRPhaseStatistics statistics = LIRPhase.statisticsClassValue.get(getClass());
+        timer = statistics.timer;
+        memUseTracker = statistics.memUseTracker;
+        allocatedTraces = counterClassValue.get(getClass()).allocatedTraces;
+    }
+
+    public final CharSequence getName() {
+        return LIRPhase.createName(getClass());
+    }
+
+    @Override
+    public final String toString() {
+        return getName().toString();
+    }
+
+    public final void apply(TargetDescription target, LIRGenerationResult lirGenRes, Trace trace, C context) {
+        apply(target, lirGenRes, trace, context, true);
+    }
+
+    @SuppressWarnings("try")
+    public final void apply(TargetDescription target, LIRGenerationResult lirGenRes, Trace trace, C context, boolean dumpTrace) {
+        try (Scope s = Debug.scope(getName(), this)) {
+            try (DebugCloseable a = timer.start(); DebugCloseable c = memUseTracker.start()) {
+                if (dumpTrace && Debug.isDumpEnabled(TraceBuilderPhase.TRACE_DUMP_LEVEL + 1)) {
+                    Debug.dump(TraceBuilderPhase.TRACE_DUMP_LEVEL + 1, trace, "%s before (Trace%s: %s)", getName(), trace.getId(), trace);
+                }
+                run(target, lirGenRes, trace, context);
+                allocatedTraces.increment();
+                if (dumpTrace && Debug.isDumpEnabled(TraceBuilderPhase.TRACE_DUMP_LEVEL)) {
+                    Debug.dump(TraceBuilderPhase.TRACE_DUMP_LEVEL, trace, "%s (Trace%s: %s)", getName(), trace.getId(), trace);
+                }
+            }
+        } catch (Throwable e) {
+            throw Debug.handle(e);
+        }
+    }
+
+    protected abstract void run(TargetDescription target, LIRGenerationResult lirGenRes, Trace trace, C context);
+}