--- /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/AArch64HotSpotDirectStaticCallOp.java 2016-12-07 13:49:24.373221307 -0800 @@ -0,0 +1,69 @@ +/* + * 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 AArch64HotSpotDirectStaticCallOp extends DirectCallOp { + + public static final LIRInstructionClass TYPE = LIRInstructionClass.create(AArch64HotSpotDirectStaticCallOp.class); + + private final InvokeKind invokeKind; + private final GraalHotSpotVMConfig config; + + AArch64HotSpotDirectStaticCallOp(ResolvedJavaMethod target, Value result, Value[] parameters, Value[] temps, LIRFrameState state, InvokeKind invokeKind, GraalHotSpotVMConfig config) { + super(TYPE, target, result, parameters, temps, state); + assert invokeKind.isDirect(); + 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.Static ? config.MARKID_INVOKESTATIC : config.MARKID_INVOKESPECIAL); + masm.movNativeAddress(inlineCacheRegister, config.nonOopBits); + super.emitCode(crb, masm); + } +}