--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir.sparc/src/org/graalvm/compiler/lir/sparc/SPARCLIRInstructionMixin.java	2020-05-01 02:31:11.670115310 -0700
+++ /dev/null	2020-03-09 18:57:19.455001459 -0700
@@ -1,99 +0,0 @@
-/*
- * Copyright (c) 2015, 2018, 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() : "";
-        }
-    }
-}