--- /dev/null	2021-01-19 17:38:25.908523431 +0000
+++ new/src/cpu/aarch64/vm/c1_MacroAssembler_aarch64.hpp	2021-01-25 19:31:34.195449766 +0000
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2013, Red Hat Inc.
+ * Copyright (c) 1999, 2010, 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.
+ *
+ */
+
+#ifndef CPU_AARCH64_VM_C1_MACROASSEMBLER_AARCH64_HPP
+#define CPU_AARCH64_VM_C1_MACROASSEMBLER_AARCH64_HPP
+
+using MacroAssembler::build_frame;
+using MacroAssembler::null_check;
+
+// C1_MacroAssembler contains high-level macros for C1
+
+ private:
+  int _rsp_offset;    // track rsp changes
+  // initialization
+  void pd_init() { _rsp_offset = 0; }
+
+void zero_memory(Register addr, Register len, Register t1);
+
+ public:
+  void try_allocate(
+    Register obj,                      // result: pointer to object after successful allocation
+    Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise
+    int      con_size_in_bytes,        // object size in bytes if   known at compile time
+    Register t1,                       // temp register
+    Register t2,                       // temp register
+    Label&   slow_case                 // continuation point if fast allocation fails
+  );
+
+  void initialize_header(Register obj, Register klass, Register len, Register t1, Register t2);
+  void initialize_body(Register obj, Register len_in_bytes, int hdr_size_in_bytes, Register t1);
+
+  void float_cmp(bool is_float, int unordered_result,
+		 FloatRegister f0, FloatRegister f1,
+		 Register result);
+
+  // locking
+  // hdr     : must be r0, contents destroyed
+  // obj     : must point to the object to lock, contents preserved
+  // disp_hdr: must point to the displaced header location, contents preserved
+  // scratch : scratch register, contents destroyed
+  // returns code offset at which to add null check debug information
+  int lock_object  (Register swap, Register obj, Register disp_hdr, Register scratch, Label& slow_case);
+
+  // unlocking
+  // hdr     : contents destroyed
+  // obj     : must point to the object to lock, contents preserved
+  // disp_hdr: must be r0 & must point to the displaced header location, contents destroyed
+  void unlock_object(Register swap, Register obj, Register lock, Label& slow_case);
+
+  void initialize_object(
+    Register obj,                      // result: pointer to object after successful allocation
+    Register klass,                    // object klass
+    Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise
+    int      con_size_in_bytes,        // object size in bytes if   known at compile time
+    Register t1,                       // temp register
+    Register t2                        // temp register
+  );
+
+  // allocation of fixed-size objects
+  // (can also be used to allocate fixed-size arrays, by setting
+  // hdr_size correctly and storing the array length afterwards)
+  // obj        : will contain pointer to allocated object
+  // t1, t2     : scratch registers - contents destroyed
+  // header_size: size of object header in words
+  // object_size: total size of object in words
+  // slow_case  : exit to slow case implementation if fast allocation fails
+  void allocate_object(Register obj, Register t1, Register t2, int header_size, int object_size, Register klass, Label& slow_case);
+
+  enum {
+    max_array_allocation_length = 0x00FFFFFF
+  };
+
+  // allocation of arrays
+  // obj        : will contain pointer to allocated object
+  // len        : array length in number of elements
+  // t          : scratch register - contents destroyed
+  // header_size: size of object header in words
+  // f          : element scale factor
+  // slow_case  : exit to slow case implementation if fast allocation fails
+  void allocate_array(Register obj, Register len, Register t, Register t2, int header_size, int f, Register klass, Label& slow_case);
+
+  int  rsp_offset() const { return _rsp_offset; }
+  void set_rsp_offset(int n) { _rsp_offset = n; }
+
+  void invalidate_registers(bool inv_r0, bool inv_r19, bool inv_r2, bool inv_r3, bool inv_r4, bool inv_r5) PRODUCT_RETURN;
+
+#endif // CPU_AARCH64_VM_C1_MACROASSEMBLER_AARCH64_HPP