gcc/config/arc/driver-arc.c

   1 /* Subroutines for the gcc driver.
   2    Copyright (C) 2016-2017 Free Software Foundation, Inc.
   3    Contributed by Claudiu Zissulescu <claziss@synopsys.com>
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3, or (at your option)
  10    any later version.
  11
  12    GCC is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GCC; see the file COPYING3.  If not see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #include "config.h"
  22 #include "system.h"
  23 #include "coretypes.h"
  24 #include "tm.h"
  25
  26 /* Returns command line parameters to pass to as.  */
  27
  28 const char*
  29 arc_cpu_to_as (int argc, const char **argv)
  30 {
  31   const char *name = NULL;
  32   const arc_cpu_t *arc_selected_cpu;
  33
  34   /* No argument, check what is the default cpu.  */
  35   if (argc == 0)
  36     {
  37       arc_selected_cpu = &arc_cpu_types[(int) TARGET_CPU_DEFAULT];
  38     }
  39   else
  40     {
  41       name = argv[0];
  42       for (arc_selected_cpu = arc_cpu_types; arc_selected_cpu->name;
  43            arc_selected_cpu++)
  44         {
  45           if (strcmp (arc_selected_cpu->name, name) == 0)
  46             break;
  47         }
  48     }
  49
  50   switch (arc_selected_cpu->arch_info->arch_id)
  51     {
  52     case BASE_ARCH_em:
  53       if (arc_selected_cpu->flags & FL_CD)
  54         name = "-mcode-density";
  55       else
  56         name = "";
  57       if (arc_selected_cpu->flags & FL_FPUDA)
  58         name = concat ("-mfpuda ", name, NULL);
  59       if (arc_selected_cpu->flags & FL_SPFP)
  60         name = concat ("-mspfp ", name, NULL);
  61       if (arc_selected_cpu->flags & FL_DPFP)
  62         name = concat ("-mdpfp ", name, NULL);
  63       return concat ("-mcpu=arcem ", name, NULL);
  64     case BASE_ARCH_hs:
  65       return "-mcpu=archs";
  66     case BASE_ARCH_700:
  67       if (arc_selected_cpu->processor == PROCESSOR_nps400)
  68         return "-mcpu=nps400 -mEA";
  69       else
  70         return "-mcpu=arc700 -mEA";
  71     case BASE_ARCH_6xx:
  72       if (arc_selected_cpu->flags & FL_MUL64)
  73         return "-mcpu=arc600 -mmul64 -mnorm";
  74       if (arc_selected_cpu->flags & FL_MUL32x16)
  75         return "-mcpu=arc600 -mdsp-packa -mnorm";
  76       return "-mcpu=arc600 -mnorm";
  77     default:
  78       gcc_unreachable ();
  79     }
  80   return NULL;
  81 }