src/cpu/x86/vm/c1_FrameMap_x86.hpp

Fri, 25 Jan 2013 10:04:08 -0500

author
zgu
date
Fri, 25 Jan 2013 10:04:08 -0500
changeset 4492
8b46b0196eb0
parent 4164
d804e148cff8
child 5694
7944aba7ba41
permissions
-rw-r--r--

8000692: Remove old KERNEL code
Summary: Removed depreciated kernel VM source code from hotspot VM
Reviewed-by: dholmes, acorn

     1 /*
     2  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #ifndef CPU_X86_VM_C1_FRAMEMAP_X86_HPP
    26 #define CPU_X86_VM_C1_FRAMEMAP_X86_HPP
    28 //  On i486 the frame looks as follows:
    29 //
    30 //  +-----------------------------+---------+----------------------------------------+----------------+-----------
    31 //  | size_arguments-nof_reg_args | 2 words | size_locals-size_arguments+numreg_args | _size_monitors | spilling .
    32 //  +-----------------------------+---------+----------------------------------------+----------------+-----------
    33 //
    34 //  The FPU registers are mapped with their offset from TOS; therefore the
    35 //  status of FPU stack must be updated during code emission.
    37  public:
    38   static const int pd_c_runtime_reserved_arg_size;
    40   enum {
    41     nof_xmm_regs = pd_nof_xmm_regs_frame_map,
    42     nof_caller_save_xmm_regs = pd_nof_caller_save_xmm_regs_frame_map,
    43     first_available_sp_in_frame = 0,
    44 #ifndef _LP64
    45     frame_pad_in_bytes = 8,
    46     nof_reg_args = 2
    47 #else
    48     frame_pad_in_bytes = 16,
    49     nof_reg_args = 6
    50 #endif // _LP64
    51   };
    53  private:
    54   static LIR_Opr      _caller_save_xmm_regs [nof_caller_save_xmm_regs];
    56   static XMMRegister _xmm_regs[nof_xmm_regs];
    58  public:
    59   static LIR_Opr receiver_opr;
    61   static LIR_Opr rsi_opr;
    62   static LIR_Opr rdi_opr;
    63   static LIR_Opr rbx_opr;
    64   static LIR_Opr rax_opr;
    65   static LIR_Opr rdx_opr;
    66   static LIR_Opr rcx_opr;
    67   static LIR_Opr rsp_opr;
    68   static LIR_Opr rbp_opr;
    70   static LIR_Opr rsi_oop_opr;
    71   static LIR_Opr rdi_oop_opr;
    72   static LIR_Opr rbx_oop_opr;
    73   static LIR_Opr rax_oop_opr;
    74   static LIR_Opr rdx_oop_opr;
    75   static LIR_Opr rcx_oop_opr;
    77   static LIR_Opr rsi_metadata_opr;
    78   static LIR_Opr rdi_metadata_opr;
    79   static LIR_Opr rbx_metadata_opr;
    80   static LIR_Opr rax_metadata_opr;
    81   static LIR_Opr rdx_metadata_opr;
    82   static LIR_Opr rcx_metadata_opr;
    84 #ifdef _LP64
    86   static LIR_Opr  r8_opr;
    87   static LIR_Opr  r9_opr;
    88   static LIR_Opr r10_opr;
    89   static LIR_Opr r11_opr;
    90   static LIR_Opr r12_opr;
    91   static LIR_Opr r13_opr;
    92   static LIR_Opr r14_opr;
    93   static LIR_Opr r15_opr;
    95   static LIR_Opr  r8_oop_opr;
    96   static LIR_Opr  r9_oop_opr;
    98   static LIR_Opr r11_oop_opr;
    99   static LIR_Opr r12_oop_opr;
   100   static LIR_Opr r13_oop_opr;
   101   static LIR_Opr r14_oop_opr;
   103   static LIR_Opr  r8_metadata_opr;
   104   static LIR_Opr  r9_metadata_opr;
   106   static LIR_Opr r11_metadata_opr;
   107   static LIR_Opr r12_metadata_opr;
   108   static LIR_Opr r13_metadata_opr;
   109   static LIR_Opr r14_metadata_opr;
   111 #endif // _LP64
   113   static LIR_Opr long0_opr;
   114   static LIR_Opr long1_opr;
   115   static LIR_Opr fpu0_float_opr;
   116   static LIR_Opr fpu0_double_opr;
   117   static LIR_Opr xmm0_float_opr;
   118   static LIR_Opr xmm0_double_opr;
   120 #ifdef _LP64
   121   static LIR_Opr as_long_opr(Register r) {
   122     return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r));
   123   }
   124   static LIR_Opr as_pointer_opr(Register r) {
   125     return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r));
   126   }
   127 #else
   128   static LIR_Opr as_long_opr(Register r, Register r2) {
   129     return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r2));
   130   }
   131   static LIR_Opr as_pointer_opr(Register r) {
   132     return LIR_OprFact::single_cpu(cpu_reg2rnr(r));
   133   }
   134 #endif // _LP64
   136   // VMReg name for spilled physical FPU stack slot n
   137   static VMReg fpu_regname (int n);
   139   static XMMRegister nr2xmmreg(int rnr);
   141   static bool is_caller_save_register (LIR_Opr opr) { return true; }
   142   static bool is_caller_save_register (Register r) { return true; }
   144   static LIR_Opr caller_save_xmm_reg_at(int i) {
   145     assert(i >= 0 && i < nof_caller_save_xmm_regs, "out of bounds");
   146     return _caller_save_xmm_regs[i];
   147   }
   149   static int adjust_reg_range(int range) {
   150     // Reduce the number of available regs (to free r12) in case of compressed oops
   151     if (UseCompressedOops || UseCompressedKlassPointers) return range - 1;
   152     return range;
   153   }
   155   static int nof_caller_save_cpu_regs() { return adjust_reg_range(pd_nof_caller_save_cpu_regs_frame_map); }
   156   static int last_cpu_reg()             { return adjust_reg_range(pd_last_cpu_reg);  }
   157   static int last_byte_reg()            { return adjust_reg_range(pd_last_byte_reg); }
   159 #endif // CPU_X86_VM_C1_FRAMEMAP_X86_HPP

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