--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir.sparc/src/org/graalvm/compiler/lir/sparc/SPARCDelayedControlTransfer.java	2020-05-20 18:12:04.891991909 -0700
+++ /dev/null	2020-03-09 18:57:19.455001459 -0700
@@ -1,65 +0,0 @@
-/*
- * Copyright (c) 2013, 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;
-
-import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler;
-import org.graalvm.compiler.lir.LIRInstruction;
-import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
-
-/**
- * This interface is used for {@link LIRInstruction}s which provide a delay slot for one instruction
- * from another {@link LIRInstruction}.
- *
- * @see SPARCTailDelayedLIRInstruction
- */
-public interface SPARCDelayedControlTransfer {
-
-    SPARCDelayedControlTransfer DUMMY = new SPARCDelayedControlTransfer() {
-        @Override
-        public void emitControlTransfer(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
-            // do nothing
-        }
-
-        @Override
-        public String toString() {
-            return "null";
-        }
-
-        @Override
-        public void resetState() {
-        }
-    };
-
-    /**
-     * This method must be called, to generate the control transfer, but without any Nop in the
-     * delay slot.
-     *
-     * @param crb
-     * @param masm
-     */
-    void emitControlTransfer(CompilationResultBuilder crb, SPARCMacroAssembler masm);
-
-    void resetState();
-}