--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir.sparc/src/org/graalvm/compiler/lir/sparc/SPARCLoadConstantTableBaseOp.java	2017-02-15 17:05:12.511924185 -0800
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2009, 2012, 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.lir.sparc;
+
+import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG;
+import static jdk.vm.ci.code.ValueUtil.asRegister;
+
+import org.graalvm.compiler.asm.sparc.SPARCAssembler;
+import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler;
+import org.graalvm.compiler.lir.LIR;
+import org.graalvm.compiler.lir.LIRInstructionClass;
+import org.graalvm.compiler.lir.StandardOp.NoOp;
+import org.graalvm.compiler.lir.Variable;
+import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
+
+import jdk.vm.ci.code.Register;
+import jdk.vm.ci.meta.AllocatableValue;
+
+/**
+ * Loads the constant section base into a register.
+ *
+ * <p>
+ * Layout:
+ *
+ * <pre>
+ * +----constant section----+--pad--+---code section--+
+ * |<-------------------_------------------->|
+ *                      ^- Constant section base pointer
+ * </pre>
+ *
+ * The constant section base pointer is placed as such that the lowest offset -4096 points to the
+ * start of the constant section.
+ * <p>
+ * If the constant section grows beyond 8k size, the immediate addressing cannot be used anymore; in
+ * this case absolute addressing (without using the base pointer is used). See also:
+ * CodeInstaller::pd_patch_DataSectionReference
+ *
+ * @see SPARCMove#loadFromConstantTable(CompilationResultBuilder, SPARCMacroAssembler, int,
+ *      Register, jdk.vm.ci.meta.Constant, Register, SPARCDelayedControlTransfer)
+ */
+public class SPARCLoadConstantTableBaseOp extends SPARCLIRInstruction {
+    public static final LIRInstructionClass<SPARCLoadConstantTableBaseOp> TYPE = LIRInstructionClass.create(SPARCLoadConstantTableBaseOp.class);
+    public static final SizeEstimate SIZE = SizeEstimate.create(9);
+
+    private final NoOp placeHolder;
+    @Def({REG}) private AllocatableValue base;
+
+    public SPARCLoadConstantTableBaseOp(Variable base, NoOp placeHolder) {
+        super(TYPE, SIZE);
+        this.base = base;
+        this.placeHolder = placeHolder;
+    }
+
+    @Override
+    public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
+        Register baseRegister = asRegister(base);
+        int beforePosition = masm.position();
+        masm.rdpc(baseRegister);
+        // Must match with CodeInstaller::pd_patch_DataSectionReference
+        masm.add(baseRegister, (int) SPARCAssembler.minSimm(13), baseRegister);
+        masm.sub(baseRegister, beforePosition, baseRegister);
+    }
+
+    public AllocatableValue getResult() {
+        return base;
+    }
+
+    public void setAlive(LIR lir, boolean alive) {
+        if (alive) {
+            placeHolder.replace(lir, this);
+        } else {
+            placeHolder.remove(lir);
+        }
+    }
+}