--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir.sparc/src/org/graalvm/compiler/lir/sparc/SPARCLIRInstructionMixin.java	2017-02-15 17:05:12.190910095 -0800
@@ -0,0 +1,97 @@
+/*
+ * 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.sparc;
+
+public interface SPARCLIRInstructionMixin {
+
+    default boolean leavesRegisterWindow() {
+        return false;
+    }
+
+    default SizeEstimate estimateSize() {
+        return getSPARCLIRInstructionStore().estimate;
+    }
+
+    SPARCLIRInstructionMixinStore getSPARCLIRInstructionStore();
+
+    /**
+     * This class represents a size estimation of a particular LIR instruction. It contains a
+     * pessimistic estimate of emitted SPARC instructions and emitted bytes into the constant
+     * section.
+     */
+    class SizeEstimate {
+        /**
+         * Cache the first size definition (with just 0 as constant size).
+         */
+        private static final SizeEstimate[] cache = new SizeEstimate[5];
+
+        static {
+            for (int i = 0; i < cache.length; i++) {
+                cache[i] = new SizeEstimate(i, 0);
+            }
+        }
+
+        public final int instructionSize;
+        public final int constantSize;
+
+        public SizeEstimate(int instructionSize, int constantSize) {
+            this.instructionSize = instructionSize;
+            this.constantSize = constantSize;
+        }
+
+        public static SizeEstimate create(int instructionSize, int constantSize) {
+            if (constantSize == 0 && instructionSize < cache.length) {
+                return cache[instructionSize];
+            } else {
+                return new SizeEstimate(instructionSize, constantSize);
+            }
+        }
+
+        public static SizeEstimate create(int instructionSize) {
+            if (instructionSize < cache.length) {
+                return cache[instructionSize];
+            } else {
+                return new SizeEstimate(instructionSize, 0);
+            }
+        }
+
+        @Override
+        public String toString() {
+            return "SE[i=" + instructionSize + ", c=" + constantSize + "]";
+        }
+    }
+
+    class SPARCLIRInstructionMixinStore {
+        public final SizeEstimate estimate;
+        public SPARCDelayedControlTransfer delayedControlTransfer = SPARCDelayedControlTransfer.DUMMY;
+
+        public SPARCLIRInstructionMixinStore(SizeEstimate estimate) {
+            this.estimate = estimate;
+        }
+
+        @Override
+        public String toString() {
+            return estimate != null ? estimate.toString() : "";
+        }
+    }
+}