1 /* 2 * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.hotspot.aarch64; 24 25 import static jdk.vm.ci.hotspot.aarch64.AArch64HotSpotRegisterConfig.inlineCacheRegister; 26 27 import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; 28 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; 29 import org.graalvm.compiler.lir.LIRFrameState; 30 import org.graalvm.compiler.lir.LIRInstructionClass; 31 import org.graalvm.compiler.lir.Opcode; 32 import org.graalvm.compiler.lir.aarch64.AArch64Call.DirectCallOp; 33 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 34 import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind; 35 36 import jdk.vm.ci.meta.ResolvedJavaMethod; 37 import jdk.vm.ci.meta.Value; 38 39 /** 40 * A direct call that complies with the conventions for such calls in HotSpot. In particular, for 41 * calls using an inline cache, a MOVE instruction is emitted just prior to the aligned direct call. 42 */ 43 @Opcode("CALL_DIRECT") 44 final class AArch64HotSpotDirectVirtualCallOp extends DirectCallOp { 45 46 public static final LIRInstructionClass<AArch64HotSpotDirectVirtualCallOp> TYPE = LIRInstructionClass.create(AArch64HotSpotDirectVirtualCallOp.class); 47 48 private final InvokeKind invokeKind; 49 private final GraalHotSpotVMConfig config; 50 51 AArch64HotSpotDirectVirtualCallOp(ResolvedJavaMethod target, Value result, Value[] parameters, Value[] temps, LIRFrameState state, InvokeKind invokeKind, GraalHotSpotVMConfig config) { 52 super(TYPE, target, result, parameters, temps, state); 53 assert invokeKind.isIndirect(); 54 this.invokeKind = invokeKind; 55 this.config = config; 56 } 57 58 @Override 59 public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) { 60 // The mark for an invocation that uses an inline cache must be placed at the 61 // instruction that loads the Klass from the inline cache. 62 // For the first invocation this is set to a bitpattern that is guaranteed to never be a 63 // valid object which causes the called function to call a handler that installs the 64 // correct inline cache value here. 65 crb.recordMark(invokeKind == InvokeKind.Virtual ? config.MARKID_INVOKEVIRTUAL : config.MARKID_INVOKEINTERFACE); 66 masm.movNativeAddress(inlineCacheRegister, config.nonOopBits); 67 super.emitCode(crb, masm); 68 } 69 }