--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.hotspot.aarch64/src/org/graalvm/compiler/hotspot/aarch64/AArch64HotSpotDeoptimizeCallerOp.java 2016-12-09 00:48:35.808954397 -0800 @@ -0,0 +1,50 @@ +/* + * 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.hotspot.HotSpotHostBackend.UNCOMMON_TRAP_HANDLER; + +import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; +import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; +import org.graalvm.compiler.lir.LIRInstructionClass; +import org.graalvm.compiler.lir.Opcode; +import org.graalvm.compiler.lir.aarch64.AArch64Call; +import org.graalvm.compiler.lir.asm.CompilationResultBuilder; + +/** + * Removes the current frame and tail calls the uncommon trap routine. + */ +@Opcode("DEOPT_CALLER") +public class AArch64HotSpotDeoptimizeCallerOp extends AArch64HotSpotEpilogueOp { + public static final LIRInstructionClass TYPE = LIRInstructionClass.create(AArch64HotSpotDeoptimizeCallerOp.class); + + public AArch64HotSpotDeoptimizeCallerOp(GraalHotSpotVMConfig config) { + super(TYPE, config); + } + + @Override + public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) { + leaveFrame(crb, masm, /* emitSafepoint */false); + AArch64Call.directJmp(crb, masm, crb.foreignCalls.lookupForeignCall(UNCOMMON_TRAP_HANDLER)); + } +}