gcc/target-globals.c

   1 /* Target-dependent globals.
   2    Copyright (C) 2010  Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #include "config.h"
  21 #include "system.h"
  22 #include "coretypes.h"
  23 #include "tm.h"
  24 #include "insn-config.h"
  25 #include "machmode.h"
  26 #include "ggc.h"
  27 #include "toplev.h"
  28 #include "target-globals.h"
  29 #include "flags.h"
  30 #include "regs.h"
  31 #include "rtl.h"
  32 #include "hard-reg-set.h"
  33 #include "reload.h"
  34
  35 #if SWITCHABLE_TARGET
  36 struct target_globals default_target_globals = {
  37   &default_target_flag_state,
  38   &default_target_regs,
  39   &default_target_rtl,
  40   &default_target_hard_regs,
  41   &default_target_reload
  42 };
  43
  44 struct target_globals *
  45 save_target_globals (void)
  46 {
  47   struct target_globals *g;
  48
  49   g = ggc_alloc_target_globals ();
  50   g->flag_state = XCNEW (struct target_flag_state);
  51   g->regs = XCNEW (struct target_regs);
  52   g->rtl = ggc_alloc_cleared_target_rtl ();
  53   g->hard_regs = XCNEW (struct target_hard_regs);
  54   g->reload = XCNEW (struct target_reload);
  55   restore_target_globals (g);
  56   target_reinit ();
  57   return g;
  58 }
  59
  60 #endif