1 /* 2 * Copyright (c) 2012, 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.amd64; 24 25 import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; 26 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; 27 import org.graalvm.compiler.lir.LIRFrameState; 28 import org.graalvm.compiler.lir.LIRInstructionClass; 29 import org.graalvm.compiler.lir.Opcode; 30 import org.graalvm.compiler.lir.amd64.AMD64Call.DirectCallOp; 31 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 32 import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind; 33 34 import jdk.vm.ci.amd64.AMD64; 35 import jdk.vm.ci.meta.ResolvedJavaMethod; 36 import jdk.vm.ci.meta.Value; 37 38 /** 39 * A direct call that complies with the conventions for such calls in HotSpot. In particular, for 40 * calls using an inline cache, a MOVE instruction is emitted just prior to the aligned direct call. 41 */ 42 @Opcode("CALL_DIRECT") 43 final class AMD64HotspotDirectVirtualCallOp extends DirectCallOp { 44 public static final LIRInstructionClass<AMD64HotspotDirectVirtualCallOp> TYPE = LIRInstructionClass.create(AMD64HotspotDirectVirtualCallOp.class); 45 46 private final InvokeKind invokeKind; 47 private final GraalHotSpotVMConfig config; 48 49 AMD64HotspotDirectVirtualCallOp(ResolvedJavaMethod target, Value result, Value[] parameters, Value[] temps, LIRFrameState state, InvokeKind invokeKind, GraalHotSpotVMConfig config) { 50 super(TYPE, target, result, parameters, temps, state); 51 this.invokeKind = invokeKind; 52 this.config = config; 53 assert invokeKind.isIndirect(); 54 } 55 56 @Override 57 public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { 58 // The mark for an invocation that uses an inline cache must be placed at the 59 // instruction that loads the Klass from the inline cache. 60 crb.recordMark(invokeKind == InvokeKind.Virtual ? config.MARKID_INVOKEVIRTUAL : config.MARKID_INVOKEINTERFACE); 61 // This must be emitted exactly like this to ensure it's patchable 62 masm.movq(AMD64.rax, config.nonOopBits); 63 super.emitCode(crb, masm); 64 } 65 }