--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.lir.sparc/src/org/graalvm/compiler/lir/sparc/SPARCBreakpointOp.java	2016-12-09 00:53:50.234814454 -0800
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2012, 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.lir.sparc;
+
+import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG;
+import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK;
+
+import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler;
+import org.graalvm.compiler.lir.LIRInstructionClass;
+import org.graalvm.compiler.lir.Opcode;
+import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
+
+import jdk.vm.ci.meta.Value;
+
+/**
+ * Emits a breakpoint.
+ */
+@Opcode("BREAKPOINT")
+public final class SPARCBreakpointOp extends SPARCLIRInstruction {
+    public static final LIRInstructionClass<SPARCBreakpointOp> TYPE = LIRInstructionClass.create(SPARCBreakpointOp.class);
+    public static final SizeEstimate SIZE = SizeEstimate.create(1);
+
+    // historical - from hotspot src/cpu/sparc/vm
+    // <sys/trap.h> promises that the system will not use traps 16-31
+    // We want to use ST_BREAKPOINT here, but the debugger is confused by it.
+    public static final int ST_RESERVED_FOR_USER_0 = 0x10;
+
+    /**
+     * A set of values loaded into the Java ABI parameter locations (for inspection by a debugger).
+     */
+    @Use({REG, STACK}) protected Value[] parameters;
+
+    public SPARCBreakpointOp(Value[] parameters) {
+        super(TYPE, SIZE);
+        this.parameters = parameters;
+    }
+
+    @Override
+    public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
+        masm.ta(ST_RESERVED_FOR_USER_0);
+    }
+}