| /* |
| * Copyright (c) 2015, 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.amd64; |
| |
| import static jdk.vm.ci.code.ValueUtil.asRegister; |
| |
| import java.util.ArrayList; |
| import java.util.EnumSet; |
| |
| import jdk.vm.ci.code.CallingConvention; |
| import jdk.vm.ci.meta.AllocatableValue; |
| import jdk.vm.ci.meta.Constant; |
| import jdk.vm.ci.meta.Value; |
| |
| import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; |
| import org.graalvm.compiler.core.common.spi.ForeignCallLinkage; |
| import org.graalvm.compiler.lir.LIRFrameState; |
| import org.graalvm.compiler.lir.LIRInstructionClass; |
| import org.graalvm.compiler.lir.LIRValueUtil; |
| import org.graalvm.compiler.lir.ValueProcedure; |
| import org.graalvm.compiler.lir.amd64.AMD64LIRInstruction; |
| import org.graalvm.compiler.lir.asm.CompilationResultBuilder; |
| |
| public final class AMD64HotSpotConstantRetrievalOp extends AMD64LIRInstruction { |
| public static final LIRInstructionClass<AMD64HotSpotConstantRetrievalOp> TYPE = LIRInstructionClass.create(AMD64HotSpotConstantRetrievalOp.class); |
| |
| @Def protected AllocatableValue result; |
| protected final Constant[] constants; |
| @Alive protected AllocatableValue[] constantDescriptions; |
| @Temp protected AllocatableValue[] gotSlotOffsetParameters; |
| @Temp protected AllocatableValue[] descriptionParameters; |
| @Temp protected Value[] callTemps; |
| @State protected LIRFrameState frameState; |
| private final ForeignCallLinkage callLinkage; |
| private final Object[] notes; |
| |
| private class CollectTemporaries implements ValueProcedure { |
| ArrayList<Value> values = new ArrayList<>(); |
| |
| CollectTemporaries() { |
| forEachTemp(this); |
| } |
| |
| public Value[] asArray() { |
| Value[] copy = new Value[values.size()]; |
| return values.toArray(copy); |
| } |
| |
| @Override |
| public Value doValue(Value value, OperandMode mode, EnumSet<OperandFlag> flags) { |
| values.add(value); |
| return value; |
| } |
| } |
| |
| public AMD64HotSpotConstantRetrievalOp(Constant[] constants, AllocatableValue[] constantDescriptions, LIRFrameState frameState, ForeignCallLinkage callLinkage, Object[] notes) { |
| super(TYPE); |
| this.constantDescriptions = constantDescriptions; |
| this.constants = constants; |
| this.frameState = frameState; |
| this.notes = notes; |
| assert constants.length == notes.length; |
| |
| // call arguments |
| CallingConvention callingConvention = callLinkage.getOutgoingCallingConvention(); |
| this.gotSlotOffsetParameters = new AllocatableValue[constants.length]; |
| int argIndex = 0; |
| for (int i = 0; i < constants.length; i++, argIndex++) { |
| this.gotSlotOffsetParameters[i] = callingConvention.getArgument(argIndex); |
| } |
| this.descriptionParameters = new AllocatableValue[constantDescriptions.length]; |
| for (int i = 0; i < constantDescriptions.length; i++, argIndex++) { |
| this.descriptionParameters[i] = callingConvention.getArgument(argIndex); |
| } |
| this.result = callingConvention.getReturn(); |
| |
| this.callLinkage = callLinkage; |
| |
| // compute registers that are killed by the stub, but are not used as other temps. |
| this.callTemps = new Value[0]; |
| this.callTemps = LIRValueUtil.subtractRegisters(callLinkage.getTemporaries(), new CollectTemporaries().asArray()); |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { |
| // metadata_adr |
| for (int i = 0; i < constants.length; i++) { |
| crb.recordInlineDataInCodeWithNote(constants[i], notes[i]); |
| masm.leaq(asRegister(gotSlotOffsetParameters[i]), masm.getPlaceholder(-1)); |
| } |
| |
| for (int i = 0; i < constantDescriptions.length; i++) { |
| masm.movq(asRegister(descriptionParameters[i]), asRegister(constantDescriptions[i])); |
| } |
| |
| final int before = masm.position(); |
| masm.call(); |
| final int after = masm.position(); |
| crb.recordDirectCall(before, after, callLinkage, frameState); |
| } |
| |
| } |