--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/arm/c1_LIR_arm.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2010, 2016, 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 "c1/c1_LIR.hpp"
+
+FloatRegister LIR_OprDesc::as_float_reg() const {
+  return as_FloatRegister(fpu_regnr());
+}
+
+FloatRegister LIR_OprDesc::as_double_reg() const {
+  return as_FloatRegister(fpu_regnrLo());
+}
+
+#ifdef AARCH64
+// Reg2 unused.
+LIR_Opr LIR_OprFact::double_fpu(int reg1, int reg2) {
+  assert(as_FloatRegister(reg2) == fnoreg, "Not used on this platform");
+  return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
+                             (reg1 << LIR_OprDesc::reg2_shift) |
+                             LIR_OprDesc::double_type          |
+                             LIR_OprDesc::fpu_register         |
+                             LIR_OprDesc::double_size);
+}
+#else
+LIR_Opr LIR_OprFact::double_fpu(int reg1, int reg2) {
+  assert(as_FloatRegister(reg2) != fnoreg, "Arm32 holds double in two regs.");
+  return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
+                             (reg2 << LIR_OprDesc::reg2_shift) |
+                             LIR_OprDesc::double_type          |
+                             LIR_OprDesc::fpu_register         |
+                             LIR_OprDesc::double_size);
+}
+#endif
+
+#ifndef PRODUCT
+void LIR_Address::verify() const {
+#ifdef _LP64
+  assert(base()->is_cpu_register(), "wrong base operand");
+#endif
+#ifdef AARCH64
+  if (base()->type() == T_INT) {
+    assert(index()->is_single_cpu() && (index()->type() == T_INT), "wrong index operand");
+  } else {
+    assert(index()->is_illegal() || index()->is_double_cpu() ||
+           (index()->is_single_cpu() && (index()->is_oop_register() || index()->type() == T_INT)), "wrong index operand");
+    assert(base()->type() == T_OBJECT || base()->type() == T_LONG || base()->type() == T_METADATA, "wrong type for addresses");
+  }
+#else
+  assert(disp() == 0 || index()->is_illegal(), "can't have both");
+  // Note: offsets higher than 4096 must not be rejected here. They can
+  // be handled by the back-end or will be rejected if not.
+#ifdef _LP64
+  assert(index()->is_illegal() || index()->is_double_cpu(), "wrong index operand");
+  assert(base()->type() == T_OBJECT || base()->type() == T_LONG || base()->type() == T_METADATA,
+         "wrong type for addresses");
+#else
+  assert(base()->is_single_cpu(), "wrong base operand");
+  assert(index()->is_illegal() || index()->is_single_cpu(), "wrong index operand");
+  assert(base()->type() == T_OBJECT || base()->type() == T_INT || base()->type() == T_METADATA,
+         "wrong type for addresses");
+#endif
+#endif // AARCH64
+}
+#endif // PRODUCT