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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [hooks.c] - Blame information for rev 693

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1 684 jeremybenn
/* General-purpose hooks.
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   Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
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   Free Software Foundation, Inc.
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   This program is free software; you can redistribute it and/or modify it
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   under the terms of the GNU General Public License as published by the
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   Free Software Foundation; either version 3, or (at your option) any
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   later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; see the file COPYING3.  If not see
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   <http://www.gnu.org/licenses/>.
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   In other words, you are welcome to use, share and improve this program.
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   You are forbidden to forbid anyone else to use, share and improve
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   what you give them.   Help stamp out software-hoarding!  */
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/* This file contains generic hooks that can be used as defaults for
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   target or language-dependent hook initializers.  */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "hooks.h"
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/* Generic hook that does absolutely zappo.  */
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void
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hook_void_void (void)
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{
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}
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/* Generic hook that takes no arguments and returns false.  */
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bool
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hook_bool_void_false (void)
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{
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  return false;
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}
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/* Generic hook that takes no arguments and returns true.  */
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bool
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hook_bool_void_true (void)
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{
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  return true;
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}
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/* Generic hook that takes (bool) and returns false.  */
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bool
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hook_bool_bool_false (bool a ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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/* Generic hook that takes (bool, struct gcc_options *) and returns false.  */
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bool
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hook_bool_bool_gcc_optionsp_false (bool a ATTRIBUTE_UNUSED,
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                                   struct gcc_options *opts ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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/* Generic hook that takes const int, const int) and returns true.  */
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bool hook_bool_const_int_const_int_true (const int a ATTRIBUTE_UNUSED,
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                                         const int b ATTRIBUTE_UNUSED)
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{
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  return true;
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}
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/* Generic hook that takes (enum machine_mode) and returns false.  */
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bool
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hook_bool_mode_false (enum machine_mode mode ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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81
/* Generic hook that takes (enum machine_mode) and returns true.  */
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bool
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hook_bool_mode_true (enum machine_mode mode ATTRIBUTE_UNUSED)
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{
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  return true;
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}
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/* Generic hook that takes (enum machine_mode, const_rtx) and returns false.  */
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bool
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hook_bool_mode_const_rtx_false (enum machine_mode mode ATTRIBUTE_UNUSED,
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                                const_rtx value ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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/* Generic hook that takes (enum machine_mode, const_rtx) and returns true.  */
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bool
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hook_bool_mode_const_rtx_true (enum machine_mode mode ATTRIBUTE_UNUSED,
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                               const_rtx value ATTRIBUTE_UNUSED)
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{
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  return true;
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}
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/* Generic hook that takes (enum machine_mode, rtx) and returns false.  */
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bool
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hook_bool_mode_rtx_false (enum machine_mode mode ATTRIBUTE_UNUSED,
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                          rtx value ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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/* Generic hook that takes (enum machine_mode, rtx) and returns true.  */
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bool
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hook_bool_mode_rtx_true (enum machine_mode mode ATTRIBUTE_UNUSED,
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                         rtx value ATTRIBUTE_UNUSED)
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{
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  return true;
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}
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/* Generic hook that takes (enum machine_mode, unsigned HOST_WIDE_INT)
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   and returns false.  */
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bool
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hook_bool_mode_uhwi_false (enum machine_mode mode ATTRIBUTE_UNUSED,
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                           unsigned HOST_WIDE_INT value ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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/* Generic hook that takes (FILE *, const char *) and does nothing.  */
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void
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hook_void_FILEptr_constcharptr (FILE *a ATTRIBUTE_UNUSED, const char *b ATTRIBUTE_UNUSED)
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{
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}
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/* Generic hook that takes (FILE *, rtx) and returns false.  */
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bool
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hook_bool_FILEptr_rtx_false (FILE *a ATTRIBUTE_UNUSED,
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                             rtx b ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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/* Used for the TARGET_ASM_CAN_OUTPUT_MI_THUNK hook.  */
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bool
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hook_bool_const_tree_hwi_hwi_const_tree_false (const_tree a ATTRIBUTE_UNUSED,
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                                               HOST_WIDE_INT b ATTRIBUTE_UNUSED,
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                                               HOST_WIDE_INT c ATTRIBUTE_UNUSED,
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                                               const_tree d ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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bool
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hook_bool_const_tree_hwi_hwi_const_tree_true (const_tree a ATTRIBUTE_UNUSED,
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                                              HOST_WIDE_INT b ATTRIBUTE_UNUSED,
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                                              HOST_WIDE_INT c ATTRIBUTE_UNUSED,
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                                              const_tree d ATTRIBUTE_UNUSED)
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{
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  return true;
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}
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162
bool
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default_can_output_mi_thunk_no_vcall (const_tree a ATTRIBUTE_UNUSED,
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                                      HOST_WIDE_INT b ATTRIBUTE_UNUSED,
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                                      HOST_WIDE_INT c,
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                                      const_tree d ATTRIBUTE_UNUSED)
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{
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  return c == 0;
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}
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171
int
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hook_int_uint_mode_1 (unsigned int a ATTRIBUTE_UNUSED,
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                      enum machine_mode b ATTRIBUTE_UNUSED)
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{
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  return 1;
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}
177
 
178
int
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hook_int_const_tree_0 (const_tree a ATTRIBUTE_UNUSED)
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{
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  return 0;
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}
183
 
184
/* ??? Used for comp_type_attributes, which ought to return bool.  */
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int
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hook_int_const_tree_const_tree_1 (const_tree a ATTRIBUTE_UNUSED, const_tree b ATTRIBUTE_UNUSED)
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{
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  return 1;
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}
190
 
191
int
192
hook_int_rtx_0 (rtx a ATTRIBUTE_UNUSED)
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{
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  return 0;
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}
196
 
197
int
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hook_int_rtx_bool_0 (rtx a ATTRIBUTE_UNUSED, bool b ATTRIBUTE_UNUSED)
199
{
200
  return 0;
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}
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203
unsigned int
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hook_uint_void_0 (void)
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{
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  return 0;
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}
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209
void
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hook_void_tree (tree a ATTRIBUTE_UNUSED)
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{
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}
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void
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hook_void_constcharptr (const char *a ATTRIBUTE_UNUSED)
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{
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}
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void
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hook_void_tree_treeptr (tree a ATTRIBUTE_UNUSED, tree *b ATTRIBUTE_UNUSED)
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{
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}
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224
void
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hook_void_int_int (int a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED)
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{
227
}
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229
bool
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hook_bool_tree_false (tree a ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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bool
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hook_bool_const_tree_false (const_tree a ATTRIBUTE_UNUSED)
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{
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  return false;
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}
240
 
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bool
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hook_bool_tree_true (tree a ATTRIBUTE_UNUSED)
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{
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  return true;
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}
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bool
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hook_bool_const_tree_true (const_tree a ATTRIBUTE_UNUSED)
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{
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  return true;
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}
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bool
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hook_bool_tree_tree_false (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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bool
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hook_bool_tree_tree_true (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED)
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{
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  return true;
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}
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bool
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hook_bool_tree_bool_false (tree a ATTRIBUTE_UNUSED, bool b ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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bool
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hook_bool_rtx_false (rtx a ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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bool
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hook_bool_uintp_uintp_false (unsigned int *a ATTRIBUTE_UNUSED,
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                             unsigned int *b ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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bool
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hook_bool_rtx_int_int_int_intp_bool_false (rtx a ATTRIBUTE_UNUSED,
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                                           int b ATTRIBUTE_UNUSED,
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                                           int c ATTRIBUTE_UNUSED,
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                                           int d ATTRIBUTE_UNUSED,
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                                           int *e ATTRIBUTE_UNUSED,
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                                           bool speed_p ATTRIBUTE_UNUSED)
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{
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  return false;
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}
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/* Generic hook that takes an rtx and returns it.  */
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rtx
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hook_rtx_rtx_identity (rtx x)
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{
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  return x;
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}
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/* Generic hook that takes an rtx and returns NULL_RTX.  */
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rtx
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hook_rtx_rtx_null (rtx x ATTRIBUTE_UNUSED)
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{
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  return NULL;
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}
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/* Generic hook that takes a tree and an int and returns NULL_RTX.  */
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rtx
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hook_rtx_tree_int_null (tree a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED)
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{
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  return NULL;
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}
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/* Generic hook that takes three trees and returns the last one as is.  */
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tree
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hook_tree_tree_tree_tree_3rd_identity (tree a ATTRIBUTE_UNUSED,
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                                       tree b ATTRIBUTE_UNUSED, tree c)
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{
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  return c;
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}
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/* Generic hook that takes a tree and returns a NULL string.  */
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const char *
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hook_constcharptr_const_tree_null (const_tree t ATTRIBUTE_UNUSED)
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{
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  return NULL;
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}
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tree
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hook_tree_tree_int_treep_bool_null (tree t0 ATTRIBUTE_UNUSED,
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                                    int i ATTRIBUTE_UNUSED,
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                                    tree *p ATTRIBUTE_UNUSED,
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                                    bool ignore ATTRIBUTE_UNUSED)
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{
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  return NULL;
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}
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tree
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hook_tree_tree_tree_null (tree t0 ATTRIBUTE_UNUSED, tree t1 ATTRIBUTE_UNUSED)
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{
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  return NULL;
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}
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tree
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hook_tree_tree_tree_tree_null (tree t0 ATTRIBUTE_UNUSED,
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                               tree t1 ATTRIBUTE_UNUSED,
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                               tree t2 ATTRIBUTE_UNUSED)
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{
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  return NULL;
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}
353
 
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/* Generic hook that takes a rtx and returns a NULL string.  */
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const char *
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hook_constcharptr_const_rtx_null (const_rtx r ATTRIBUTE_UNUSED)
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{
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  return NULL;
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}
360
 
361
const char *
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hook_constcharptr_const_tree_const_tree_null (const_tree t0 ATTRIBUTE_UNUSED,
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                                              const_tree t1 ATTRIBUTE_UNUSED)
364
{
365
  return NULL;
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}
367
 
368
const char *
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hook_constcharptr_int_const_tree_null (int i ATTRIBUTE_UNUSED,
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                                       const_tree t0 ATTRIBUTE_UNUSED)
371
{
372
  return NULL;
373
}
374
 
375
const char *
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hook_constcharptr_int_const_tree_const_tree_null (int i ATTRIBUTE_UNUSED,
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                                                  const_tree t0 ATTRIBUTE_UNUSED,
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                                                  const_tree t1 ATTRIBUTE_UNUSED)
379
{
380
  return NULL;
381
}
382
 
383
/* Generic hook that takes a const_tree and returns NULL_TREE.  */
384
tree
385
hook_tree_const_tree_null (const_tree t ATTRIBUTE_UNUSED)
386
{
387
  return NULL;
388
}
389
 
390
/* Generic hook that takes a rtx and an int and returns a bool.  */
391
 
392
bool
393
hook_bool_rtx_int_false (rtx insn ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
394
{
395
  return false;
396
}
397
 
398
/* Generic hook that takes a rtx and an int and returns void.  */
399
 
400
void
401
hook_void_rtx_int (rtx insn ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
402
{
403
}
404
 
405
/* Generic hook that takes a struct gcc_options * and returns void.  */
406
 
407
void
408
hook_void_gcc_optionsp (struct gcc_options *opts ATTRIBUTE_UNUSED)
409
{
410
}

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