libgcc/config/nvptx/malloc.asm

   1 // A wrapper around malloc to enable a realloc implementation.
   2
   3 // Copyright (C) 2014-2016 Free Software Foundation, Inc.
   4
   5 // This file is free software; you can redistribute it and/or modify it
   6 // under the terms of the GNU General Public License as published by the
   7 // Free Software Foundation; either version 3, or (at your option) any
   8 // later version.
   9
  10 // This file is distributed in the hope that it will be useful, but
  11 // WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 // General Public License for more details.
  14
  15 // Under Section 7 of GPL version 3, you are granted additional
  16 // permissions described in the GCC Runtime Library Exception, version
  17 // 3.1, as published by the Free Software Foundation.
  18
  19 // You should have received a copy of the GNU General Public License and
  20 // a copy of the GCC Runtime Library Exception along with this program;
  21 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  22 // <http://www.gnu.org/licenses/>.
  23
  24         .version        3.1
  25         .target sm_30
  26         .address_size 64
  27
  28 .extern .func (.param.u64 %out_retval) malloc(.param.u64 %in_ar1);
  29
  30 // BEGIN GLOBAL FUNCTION DEF: __nvptx_malloc
  31 .visible .func (.param.u64 %out_retval) __nvptx_malloc(.param.u64 %in_ar1)
  32 {
  33         .reg.u64 %ar1;
  34 .reg.u64 %retval;
  35         .reg.u64 %hr10;
  36         .reg.u64 %r26;
  37         .reg.u64 %r28;
  38         .reg.u64 %r29;
  39         .reg.u64 %r31;
  40         ld.param.u64 %ar1, [%in_ar1];
  41                 mov.u64 %r26, %ar1;
  42                 add.u64 %r28, %r26, 8;
  43         {
  44                 .param.u64 %retval_in;
  45                 .param.u64 %out_arg0;
  46                 st.param.u64 [%out_arg0], %r28;
  47                 call (%retval_in), malloc, (%out_arg0);
  48                 ld.param.u64    %r29, [%retval_in];
  49         }
  50                 st.u64  [%r29], %r26;
  51                 add.u64 %r31, %r29, 8;
  52                 mov.u64 %retval, %r31;
  53                 st.param.u64    [%out_retval], %retval;
  54                 ret;
  55 }