gcc/config/arc/driver-arc.c

   1 /* Subroutines for the gcc driver.
   2    Copyright (C) 2016-2018 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 #define IN_TARGET_CODE 1
  22
  23 #include "config.h"
  24 #include "system.h"
  25 #include "coretypes.h"
  26 #include "tm.h"
  27
  28 /* Returns command line parameters to pass to as.  */
  29
  30 const char*
  31 arc_cpu_to_as (int argc, const char **argv)
  32 {
  33   const char *name = NULL;
  34   const arc_cpu_t *arc_selected_cpu;
  35
  36   /* No argument, check what is the default cpu.  */
  37   if (argc == 0)
  38     {
  39       arc_selected_cpu = &arc_cpu_types[(int) TARGET_CPU_DEFAULT];
  40     }
  41   else
  42     {
  43       name = argv[0];
  44       for (arc_selected_cpu = arc_cpu_types; arc_selected_cpu->name;
  45            arc_selected_cpu++)
  46         {
  47           if (strcmp (arc_selected_cpu->name, name) == 0)
  48             break;
  49         }
  50     }
  51
  52   switch (arc_selected_cpu->arch_info->arch_id)
  53     {
  54     case BASE_ARCH_em:
  55       if (arc_selected_cpu->flags & FL_CD)
  56         name = "-mcode-density";
  57       else
  58         name = "";
  59       if (arc_selected_cpu->flags & FL_FPUDA)
  60         name = concat ("-mfpuda ", name, NULL);
  61       if (arc_selected_cpu->flags & FL_SPFP)
  62         name = concat ("-mspfp ", name, NULL);
  63       if (arc_selected_cpu->flags & FL_DPFP)
  64         name = concat ("-mdpfp ", name, NULL);
  65       return concat ("-mcpu=arcem ", name, NULL);
  66     case BASE_ARCH_hs:
  67       return "-mcpu=archs";
  68     case BASE_ARCH_700:
  69       if (arc_selected_cpu->processor == PROCESSOR_nps400)
  70         return "-mcpu=nps400 -mEA";
  71       else
  72         return "-mcpu=arc700 -mEA";
  73     case BASE_ARCH_6xx:
  74       if (arc_selected_cpu->flags & FL_MUL64)
  75         return "-mcpu=arc600 -mmul64 -mnorm";
  76       if (arc_selected_cpu->flags & FL_MUL32x16)
  77         return "-mcpu=arc600 -mdsp-packa -mnorm";
  78       return "-mcpu=arc600 -mnorm";
  79     default:
  80       gcc_unreachable ();
  81     }
  82   return NULL;
  83 }