--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.amd64/src/org/graalvm/compiler/hotspot/amd64/AMD64HotSpotLoadConfigValueOp.java 2017-02-15 16:59:03.457797724 -0800 @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2015, 2017, 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 org.graalvm.compiler.core.common.GraalOptions.GeneratePIC; +import static jdk.vm.ci.code.ValueUtil.asRegister; + +import jdk.vm.ci.amd64.AMD64Kind; +import jdk.vm.ci.code.Register; +import jdk.vm.ci.meta.AllocatableValue; + +import org.graalvm.compiler.asm.amd64.AMD64Address; +import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; +import org.graalvm.compiler.debug.GraalError; +import org.graalvm.compiler.lir.LIRInstructionClass; +import org.graalvm.compiler.lir.amd64.AMD64LIRInstruction; +import org.graalvm.compiler.lir.asm.CompilationResultBuilder; + +public final class AMD64HotSpotLoadConfigValueOp extends AMD64LIRInstruction { + + public static final LIRInstructionClass TYPE = LIRInstructionClass.create(AMD64HotSpotLoadConfigValueOp.class); + + @Def({OperandFlag.REG}) protected AllocatableValue result; + private final int markId; + + public AMD64HotSpotLoadConfigValueOp(int markId, AllocatableValue result) { + super(TYPE); + this.result = result; + this.markId = markId; + } + + @Override + public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { + if (GeneratePIC.getValue()) { + AMD64Kind kind = (AMD64Kind) result.getPlatformKind(); + Register reg = asRegister(result); + AMD64Address placeholder = masm.getPlaceholder(-1); + switch (kind) { + case BYTE: + masm.movsbl(reg, placeholder); + break; + case WORD: + masm.movswl(reg, placeholder); + break; + case DWORD: + masm.movl(reg, placeholder); + break; + case QWORD: + masm.movq(reg, placeholder); + break; + default: + throw GraalError.unimplemented(); + } + } else { + throw GraalError.unimplemented(); + } + crb.recordMark(markId); + } + +}