| /* |
| * Copyright (c) 2013, 2016, 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 jdk.vm.ci.hotspot.aarch64.AArch64HotSpotRegisterConfig.inlineCacheRegister; |
| |
| import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; |
| import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
| import org.graalvm.compiler.lir.LIRFrameState; |
| import org.graalvm.compiler.lir.LIRInstructionClass; |
| import org.graalvm.compiler.lir.Opcode; |
| import org.graalvm.compiler.lir.aarch64.AArch64Call.DirectCallOp; |
| import org.graalvm.compiler.lir.asm.CompilationResultBuilder; |
| import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind; |
| |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| import jdk.vm.ci.meta.Value; |
| |
| /** |
| * A direct call that complies with the conventions for such calls in HotSpot. In particular, for |
| * calls using an inline cache, a MOVE instruction is emitted just prior to the aligned direct call. |
| */ |
| @Opcode("CALL_DIRECT") |
| final class AArch64HotSpotDirectVirtualCallOp extends DirectCallOp { |
| |
| public static final LIRInstructionClass<AArch64HotSpotDirectVirtualCallOp> TYPE = LIRInstructionClass.create(AArch64HotSpotDirectVirtualCallOp.class); |
| |
| private final InvokeKind invokeKind; |
| private final GraalHotSpotVMConfig config; |
| |
| AArch64HotSpotDirectVirtualCallOp(ResolvedJavaMethod target, Value result, Value[] parameters, Value[] temps, LIRFrameState state, InvokeKind invokeKind, GraalHotSpotVMConfig config) { |
| super(TYPE, target, result, parameters, temps, state); |
| assert invokeKind.isIndirect(); |
| this.invokeKind = invokeKind; |
| this.config = config; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) { |
| // The mark for an invocation that uses an inline cache must be placed at the |
| // instruction that loads the Klass from the inline cache. |
| // For the first invocation this is set to a bitpattern that is guaranteed to never be a |
| // valid object which causes the called function to call a handler that installs the |
| // correct inline cache value here. |
| crb.recordMark(invokeKind == InvokeKind.Virtual ? config.MARKID_INVOKEVIRTUAL : config.MARKID_INVOKEINTERFACE); |
| masm.movNativeAddress(inlineCacheRegister, config.nonOopBits); |
| super.emitCode(crb, masm); |
| } |
| } |