--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/sparc/gc/shared/cardTableBarrierSetAssembler_sparc.cpp	Wed Mar 21 14:38:32 2018 +0100
@@ -0,0 +1,72 @@
+
+/*
+ * Copyright (c) 2018, 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.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "asm/macroAssembler.inline.hpp"
+#include "gc/shared/barrierSet.hpp"
+#include "gc/shared/cardTable.hpp"
+#include "gc/shared/cardTableBarrierSet.hpp"
+#include "gc/shared/cardTableBarrierSetAssembler.hpp"
+#include "gc/shared/collectedHeap.hpp"
+#include "interpreter/interp_masm.hpp"
+
+#define __ masm->
+
+#ifdef PRODUCT
+#define BLOCK_COMMENT(str) /* nothing */
+#else
+#define BLOCK_COMMENT(str) __ block_comment(str)
+#endif
+
+#define BIND(label) bind(label); BLOCK_COMMENT(#label ":")
+
+void CardTableBarrierSetAssembler::gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators,
+                                                                    Register addr, Register count, Register tmp) {
+  CardTableBarrierSet* ctbs = barrier_set_cast<CardTableBarrierSet>(Universe::heap()->barrier_set());
+  CardTable* ct = ctbs->card_table();
+  assert(sizeof(*ct->byte_map_base()) == sizeof(jbyte), "adjust this code");
+  assert_different_registers(addr, count, tmp);
+
+  Label L_loop, L_done;
+
+  __ cmp_and_br_short(count, 0, Assembler::equal, Assembler::pt, L_done); // zero count - nothing to do
+
+  __ sll_ptr(count, LogBytesPerHeapOop, count);
+  __ sub(count, BytesPerHeapOop, count);
+  __ add(count, addr, count);
+  // Use two shifts to clear out those low order two bits! (Cannot opt. into 1.)
+  __ srl_ptr(addr, CardTable::card_shift, addr);
+  __ srl_ptr(count, CardTable::card_shift, count);
+  __ sub(count, addr, count);
+  AddressLiteral rs(ct->byte_map_base());
+  __ set(rs, tmp);
+  __ BIND(L_loop);
+  __ stb(G0, tmp, addr);
+  __ subcc(count, 1, count);
+  __ brx(Assembler::greaterEqual, false, Assembler::pt, L_loop);
+  __ delayed()->add(addr, 1, addr);
+
+  __ BIND(L_done);
+}