--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.aarch64/src/org/graalvm/compiler/hotspot/aarch64/AArch64HotSpotJumpToExceptionHandlerInCallerOp.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2013, 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.hotspot.aarch64;
+
+import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG;
+import static jdk.vm.ci.aarch64.AArch64.sp;
+import static jdk.vm.ci.code.ValueUtil.asRegister;
+import static jdk.vm.ci.hotspot.aarch64.AArch64HotSpotRegisterConfig.fp;
+
+import org.graalvm.compiler.asm.Label;
+import org.graalvm.compiler.asm.aarch64.AArch64Address;
+import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler;
+import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler.ScratchRegister;
+import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
+import org.graalvm.compiler.lir.LIRInstructionClass;
+import org.graalvm.compiler.lir.Opcode;
+import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
+
+import jdk.vm.ci.code.Register;
+import jdk.vm.ci.meta.AllocatableValue;
+
+/**
+ * Sets up the arguments for an exception handler in the callers frame, removes the current frame
+ * and jumps to the handler.
+ */
+@Opcode("JUMP_TO_EXCEPTION_HANDLER_IN_CALLER")
+public class AArch64HotSpotJumpToExceptionHandlerInCallerOp extends AArch64HotSpotEpilogueOp {
+
+    public static final LIRInstructionClass<AArch64HotSpotJumpToExceptionHandlerInCallerOp> TYPE = LIRInstructionClass.create(AArch64HotSpotJumpToExceptionHandlerInCallerOp.class);
+
+    @Use(REG) private AllocatableValue handlerInCallerPc;
+    @Use(REG) private AllocatableValue exception;
+    @Use(REG) private AllocatableValue exceptionPc;
+    private final Register thread;
+    private final int isMethodHandleReturnOffset;
+
+    public AArch64HotSpotJumpToExceptionHandlerInCallerOp(AllocatableValue handlerInCallerPc, AllocatableValue exception, AllocatableValue exceptionPc, int isMethodHandleReturnOffset,
+                    Register thread, GraalHotSpotVMConfig config) {
+        super(TYPE, config);
+        this.handlerInCallerPc = handlerInCallerPc;
+        this.exception = exception;
+        this.exceptionPc = exceptionPc;
+        this.isMethodHandleReturnOffset = isMethodHandleReturnOffset;
+        this.thread = thread;
+    }
+
+    @Override
+    public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) {
+        leaveFrame(crb, masm, /* emitSafepoint */false);
+
+        if (System.getProperty("java.specification.version").compareTo("1.8") < 0) {
+            // Restore sp from fp if the exception PC is a method handle call site.
+            try (ScratchRegister sc = masm.getScratchRegister()) {
+                Register scratch = sc.getRegister();
+                AArch64Address address = masm.makeAddress(thread, isMethodHandleReturnOffset, scratch, 4, /* allowOverwrite */false);
+                masm.ldr(32, scratch, address);
+                Label noRestore = new Label();
+                masm.cbz(32, scratch, noRestore);
+                masm.mov(64, sp, fp);
+                masm.bind(noRestore);
+            }
+        }
+
+        masm.jmp(asRegister(handlerInCallerPc));
+    }
+}