Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 136 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/target-globals.c b/gcc-4.9/gcc/target-globals.c
new file mode 100644
index 000000000..7cf95aeed
--- /dev/null
+++ b/gcc-4.9/gcc/target-globals.c
@@ -0,0 +1,136 @@
+/* Target-dependent globals.
+   Copyright (C) 2010-2014 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "insn-config.h"
+#include "machmode.h"
+#include "tree.h"
+#include "ggc.h"
+#include "toplev.h"
+#include "target-globals.h"
+#include "flags.h"
+#include "regs.h"
+#include "rtl.h"
+#include "hard-reg-set.h"
+#include "reload.h"
+#include "expmed.h"
+#include "expr.h"
+#include "optabs.h"
+#include "libfuncs.h"
+#include "cfgloop.h"
+#include "ira-int.h"
+#include "lra-int.h"
+#include "builtins.h"
+#include "gcse.h"
+#include "bb-reorder.h"
+#include "lower-subreg.h"
+
+#if SWITCHABLE_TARGET
+struct target_globals default_target_globals = {
+  &default_target_flag_state,
+  &default_target_regs,
+  &default_target_rtl,
+  &default_target_hard_regs,
+  &default_target_reload,
+  &default_target_expmed,
+  &default_target_optabs,
+  &default_target_libfuncs,
+  &default_target_cfgloop,
+  &default_target_ira,
+  &default_target_ira_int,
+  &default_target_lra_int,
+  &default_target_builtins,
+  &default_target_gcse,
+  &default_target_bb_reorder,
+  &default_target_lower_subreg
+};
+
+struct target_globals *
+save_target_globals (void)
+{
+  struct target_globals *g;
+  struct target_globals_extra {
+    struct target_globals g;
+    struct target_flag_state flag_state;
+    struct target_optabs optabs;
+    struct target_cfgloop cfgloop;
+    struct target_builtins builtins;
+    struct target_gcse gcse;
+    struct target_bb_reorder bb_reorder;
+    struct target_lower_subreg lower_subreg;
+  } *p;
+  p = (struct target_globals_extra *)
+      ggc_internal_cleared_alloc (sizeof (struct target_globals_extra));
+  g = (struct target_globals *) p;
+  g->flag_state = &p->flag_state;
+  g->regs = ggc_internal_cleared_alloc (sizeof (struct target_regs));
+  g->rtl = ggc_alloc_cleared_target_rtl ();
+  g->hard_regs
+    = ggc_internal_cleared_alloc (sizeof (struct target_hard_regs));
+  g->reload = ggc_internal_cleared_alloc (sizeof (struct target_reload));
+  g->expmed =  ggc_internal_cleared_alloc (sizeof (struct target_expmed));
+  g->optabs = &p->optabs;
+  g->libfuncs = ggc_alloc_cleared_target_libfuncs ();
+  g->cfgloop = &p->cfgloop;
+  g->ira = ggc_internal_cleared_alloc (sizeof (struct target_ira));
+  g->ira_int = ggc_internal_cleared_alloc (sizeof (struct target_ira_int));
+  g->lra_int = ggc_internal_cleared_alloc (sizeof (struct target_lra_int));
+  g->builtins = &p->builtins;
+  g->gcse = &p->gcse;
+  g->bb_reorder = &p->bb_reorder;
+  g->lower_subreg = &p->lower_subreg;
+  restore_target_globals (g);
+  init_reg_sets ();
+  target_reinit ();
+  return g;
+}
+
+/* Like save_target_globals() above, but set *this_target_optabs
+   correctly when a previous function has changed
+   *this_target_optabs.  */
+
+struct target_globals *
+save_target_globals_default_opts ()
+{
+  struct target_globals *globals;
+
+  if (optimization_current_node != optimization_default_node)
+    {
+      tree opts = optimization_current_node;
+      /* Temporarily switch to the default optimization node, so that
+	 *this_target_optabs is set to the default, not reflecting
+	 whatever a previous function used for the optimize
+	 attribute.  */
+      optimization_current_node = optimization_default_node;
+      cl_optimization_restore
+	(&global_options,
+	 TREE_OPTIMIZATION (optimization_default_node));
+      globals = save_target_globals ();
+      optimization_current_node = opts;
+      cl_optimization_restore (&global_options,
+			       TREE_OPTIMIZATION (opts));
+      return globals;
+    }
+  return save_target_globals ();
+}
+
+#endif