1 /* Target-dependent globals. 2 Copyright (C) 2010-2013 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 #include "expmed.h" 35 #include "expr.h" 36 #include "optabs.h" 37 #include "libfuncs.h" 38 #include "cfgloop.h" 39 #include "ira-int.h" 40 #include "lra-int.h" 41 #include "builtins.h" 42 #include "gcse.h" 43 #include "bb-reorder.h" 44 #include "lower-subreg.h" 45 46 #if SWITCHABLE_TARGET 47 struct target_globals default_target_globals = { 48 &default_target_flag_state, 49 &default_target_regs, 50 &default_target_rtl, 51 &default_target_hard_regs, 52 &default_target_reload, 53 &default_target_expmed, 54 &default_target_optabs, 55 &default_target_libfuncs, 56 &default_target_cfgloop, 57 &default_target_ira, 58 &default_target_ira_int, 59 &default_target_lra_int, 60 &default_target_builtins, 61 &default_target_gcse, 62 &default_target_bb_reorder, 63 &default_target_lower_subreg 64 }; 65 66 struct target_globals * 67 save_target_globals (void) 68 { 69 struct target_globals *g; 70 struct target_optabs *saved_this_fn_optabs = this_fn_optabs; 71 72 g = ggc_alloc_target_globals (); 73 g->flag_state = XCNEW (struct target_flag_state); 74 g->regs = XCNEW (struct target_regs); 75 g->rtl = ggc_alloc_cleared_target_rtl (); 76 g->hard_regs = XCNEW (struct target_hard_regs); 77 g->reload = XCNEW (struct target_reload); 78 g->expmed = XCNEW (struct target_expmed); 79 g->optabs = XCNEW (struct target_optabs); 80 g->libfuncs = ggc_alloc_cleared_target_libfuncs (); 81 g->cfgloop = XCNEW (struct target_cfgloop); 82 g->ira = XCNEW (struct target_ira); 83 g->ira_int = XCNEW (struct target_ira_int); 84 g->lra_int = XCNEW (struct target_lra_int); 85 g->builtins = XCNEW (struct target_builtins); 86 g->gcse = XCNEW (struct target_gcse); 87 g->bb_reorder = XCNEW (struct target_bb_reorder); 88 g->lower_subreg = XCNEW (struct target_lower_subreg); 89 restore_target_globals (g); 90 this_fn_optabs = this_target_optabs; 91 init_reg_sets (); 92 target_reinit (); 93 this_fn_optabs = saved_this_fn_optabs; 94 return g; 95 } 96 97 /* Like save_target_globals() above, but set *this_target_optabs 98 correctly when a previous function has changed 99 *this_target_optabs. */ 100 101 struct target_globals * 102 save_target_globals_default_opts () 103 { 104 struct target_globals *globals; 105 106 if (optimization_current_node != optimization_default_node) 107 { 108 tree opts = optimization_current_node; 109 /* Temporarily switch to the default optimization node, so that 110 *this_target_optabs is set to the default, not reflecting 111 whatever a previous function used for the optimize 112 attribute. */ 113 optimization_current_node = optimization_default_node; 114 cl_optimization_restore 115 (&global_options, 116 TREE_OPTIMIZATION (optimization_default_node)); 117 globals = save_target_globals (); 118 optimization_current_node = opts; 119 cl_optimization_restore (&global_options, 120 TREE_OPTIMIZATION (opts)); 121 return globals; 122 } 123 return save_target_globals (); 124 } 125 126 #endif 127