/*

 * Copyright (c) 2014, Red Hat Inc. 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.

 *

 */

//  On AArch64 the frame looks as follows:

//

//  +-----------------------------+---------+----------------------------------------+----------------+-----------

//  | size_arguments-nof_reg_args | 2 words | size_locals-size_arguments+numreg_args | _size_monitors | spilling .

//  +-----------------------------+---------+----------------------------------------+----------------+-----------

 public:

  static const int pd_c_runtime_reserved_arg_size;

  enum {

    first_available_sp_in_frame = 0,

    frame_pad_in_bytes = 16,

    nof_reg_args = 8

  };

 public:

  static LIR_Opr receiver_opr;

  static LIR_Opr r0_opr;

  static LIR_Opr r1_opr;

  static LIR_Opr r2_opr;

  static LIR_Opr r3_opr;

  static LIR_Opr r4_opr;

  static LIR_Opr r5_opr;

  static LIR_Opr r6_opr;

  static LIR_Opr r7_opr;

  static LIR_Opr r8_opr;

  static LIR_Opr r9_opr;

  static LIR_Opr r10_opr;

  static LIR_Opr r11_opr;

  static LIR_Opr r12_opr;

  static LIR_Opr r13_opr;

  static LIR_Opr r14_opr;

  static LIR_Opr r15_opr;

  static LIR_Opr r16_opr;

  static LIR_Opr r17_opr;

  static LIR_Opr r18_opr;

  static LIR_Opr r19_opr;

  static LIR_Opr r20_opr;

  static LIR_Opr r21_opr;

  static LIR_Opr r22_opr;

  static LIR_Opr r23_opr;

  static LIR_Opr r24_opr;

  static LIR_Opr r25_opr;

  static LIR_Opr r26_opr;

  static LIR_Opr r27_opr;

  static LIR_Opr r28_opr;

  static LIR_Opr r29_opr;

  static LIR_Opr r30_opr;

  static LIR_Opr rfp_opr;

  static LIR_Opr sp_opr;

  static LIR_Opr r0_oop_opr;

  static LIR_Opr r1_oop_opr;

  static LIR_Opr r2_oop_opr;

  static LIR_Opr r3_oop_opr;

  static LIR_Opr r4_oop_opr;

  static LIR_Opr r5_oop_opr;

  static LIR_Opr r6_oop_opr;

  static LIR_Opr r7_oop_opr;

  static LIR_Opr r8_oop_opr;

  static LIR_Opr r9_oop_opr;

  static LIR_Opr r10_oop_opr;

  static LIR_Opr r11_oop_opr;

  static LIR_Opr r12_oop_opr;

  static LIR_Opr r13_oop_opr;

  static LIR_Opr r14_oop_opr;

  static LIR_Opr r15_oop_opr;

  static LIR_Opr r16_oop_opr;

  static LIR_Opr r17_oop_opr;

  static LIR_Opr r18_oop_opr;

  static LIR_Opr r19_oop_opr;

  static LIR_Opr r20_oop_opr;

  static LIR_Opr r21_oop_opr;

  static LIR_Opr r22_oop_opr;

  static LIR_Opr r23_oop_opr;

  static LIR_Opr r24_oop_opr;

  static LIR_Opr r25_oop_opr;

  static LIR_Opr r26_oop_opr;

  static LIR_Opr r27_oop_opr;

  static LIR_Opr r28_oop_opr;

  static LIR_Opr r29_oop_opr;

  static LIR_Opr r30_oop_opr;

  static LIR_Opr rscratch1_opr;

  static LIR_Opr rscratch2_opr;

  static LIR_Opr rscratch1_long_opr;

  static LIR_Opr rscratch2_long_opr;

  static LIR_Opr r0_metadata_opr;

  static LIR_Opr r1_metadata_opr;

  static LIR_Opr r2_metadata_opr;

  static LIR_Opr r3_metadata_opr;

  static LIR_Opr r4_metadata_opr;

  static LIR_Opr r5_metadata_opr;

  static LIR_Opr long0_opr;

  static LIR_Opr long1_opr;

  static LIR_Opr fpu0_float_opr;

  static LIR_Opr fpu0_double_opr;

  static LIR_Opr as_long_opr(Register r) {

    return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r));

  }

  static LIR_Opr as_pointer_opr(Register r) {

    return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r));

  }

  // VMReg name for spilled physical FPU stack slot n

  static VMReg fpu_regname (int n);

  static bool is_caller_save_register (LIR_Opr opr) { return true; }

  static bool is_caller_save_register (Register r) { return true; }

  static int nof_caller_save_cpu_regs() { return pd_nof_caller_save_cpu_regs_frame_map; }

  static int last_cpu_reg()             { return pd_last_cpu_reg;  }

  static int last_byte_reg()            { return pd_last_byte_reg; }