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-rw-r--r--gcc/hooks.c571
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diff --git a/gcc/hooks.c b/gcc/hooks.c
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-/* General-purpose hooks.
- Copyright (C) 2002-2022 Free Software Foundation, Inc.
-
- This program 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.
-
- This program 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 this program; see the file COPYING3. If not see
- <http://www.gnu.org/licenses/>.
-
- In other words, you are welcome to use, share and improve this program.
- You are forbidden to forbid anyone else to use, share and improve
- what you give them. Help stamp out software-hoarding! */
-
-/* This file contains generic hooks that can be used as defaults for
- target or language-dependent hook initializers. */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "tm.h"
-#include "hooks.h"
-
-/* Generic hook that does absolutely zappo. */
-void
-hook_void_void (void)
-{
-}
-
-/* Generic hook that takes no arguments and returns false. */
-bool
-hook_bool_void_false (void)
-{
- return false;
-}
-
-/* Generic hook that takes no arguments and returns true. */
-bool
-hook_bool_void_true (void)
-{
- return true;
-}
-
-/* Generic hook that takes (bool) and returns false. */
-bool
-hook_bool_bool_false (bool)
-{
- return false;
-}
-
-/* Generic hook that takes (bool, struct gcc_options *) and returns false. */
-bool
-hook_bool_bool_gcc_optionsp_false (bool, struct gcc_options *)
-{
- return false;
-}
-
-/* Generic hook that takes const int, const int) and returns true. */
-bool hook_bool_const_int_const_int_true (const int, const int)
-{
- return true;
-}
-
-/* Generic hook that takes (machine_mode) and returns false. */
-bool
-hook_bool_mode_false (machine_mode)
-{
- return false;
-}
-
-/* Generic hook that takes (machine_mode) and returns true. */
-bool
-hook_bool_mode_true (machine_mode)
-{
- return true;
-}
-
-/* Generic hook that takes (machine_mode, machine_mode) and returns true. */
-bool
-hook_bool_mode_mode_true (machine_mode, machine_mode)
-{
- return true;
-}
-
-/* Generic hook that takes (machine_mode, const_rtx) and returns false. */
-bool
-hook_bool_mode_const_rtx_false (machine_mode, const_rtx)
-{
- return false;
-}
-
-/* Generic hook that takes (machine_mode, const_rtx) and returns true. */
-bool
-hook_bool_mode_const_rtx_true (machine_mode, const_rtx)
-{
- return true;
-}
-
-/* Generic hook that takes (machine_mode, rtx) and returns false. */
-bool
-hook_bool_mode_rtx_false (machine_mode, rtx)
-{
- return false;
-}
-
-/* Generic hook that takes (machine_mode, rtx) and returns true. */
-bool
-hook_bool_mode_rtx_true (machine_mode, rtx)
-{
- return true;
-}
-
-/* Generic hook that takes (const rtx_insn *, const rtx_insn *) and returns true. */
-bool
-hook_bool_const_rtx_insn_const_rtx_insn_true (const rtx_insn *,
- const rtx_insn *)
-{
- return true;
-}
-
-/* Generic hook that takes (machine_mode, unsigned HOST_WIDE_INT)
- and returns false. */
-bool
-hook_bool_mode_uhwi_false (machine_mode, unsigned HOST_WIDE_INT)
-{
- return false;
-}
-
-/* Generic hook that takes (poly_uint64, poly_uint64) and returns true. */
-bool
-hook_bool_puint64_puint64_true (poly_uint64, poly_uint64)
-{
- return true;
-}
-
-bool
-hook_bool_uint_uint_mode_false (unsigned int, unsigned int, machine_mode)
-{
- return false;
-}
-
-/* Generic hook that takes (unsigned int, machine_mode) and returns true. */
-bool
-hook_bool_uint_mode_true (unsigned int, machine_mode)
-{
- return true;
-}
-
-/* Generic hook that takes (FILE *, const char *) and does nothing. */
-void
-hook_void_FILEptr_constcharptr (FILE *, const char *)
-{
-}
-
-/* Generic hook that takes (FILE *, const char *, constr_tree *) and does
- nothing. */
-void
-hook_void_FILEptr_constcharptr_const_tree (FILE *, const char *, const_tree)
-{
-}
-
-/* Generic hook that takes (FILE *, rtx) and returns false. */
-bool
-hook_bool_FILEptr_rtx_false (FILE *, rtx)
-{
- return false;
-}
-
-/* Generic hook that takes (gimple_stmt_iterator *) and returns
- false. */
-bool
-hook_bool_gsiptr_false (gimple_stmt_iterator *)
-{
- return false;
-}
-
-/* Used for the TARGET_ASM_CAN_OUTPUT_MI_THUNK hook. */
-bool
-hook_bool_const_tree_hwi_hwi_const_tree_false (const_tree, HOST_WIDE_INT,
- HOST_WIDE_INT, const_tree)
-{
- return false;
-}
-
-bool
-hook_bool_const_tree_hwi_hwi_const_tree_true (const_tree, HOST_WIDE_INT,
- HOST_WIDE_INT, const_tree)
-{
- return true;
-}
-
-bool
-default_can_output_mi_thunk_no_vcall (const_tree, HOST_WIDE_INT,
- HOST_WIDE_INT c, const_tree)
-{
- return c == 0;
-}
-
-int
-hook_int_uint_mode_1 (unsigned int, machine_mode)
-{
- return 1;
-}
-
-int
-hook_int_const_tree_0 (const_tree)
-{
- return 0;
-}
-
-/* ??? Used for comp_type_attributes, which ought to return bool. */
-int
-hook_int_const_tree_const_tree_1 (const_tree, const_tree)
-{
- return 1;
-}
-
-int
-hook_int_rtx_0 (rtx)
-{
- return 0;
-}
-
-int
-hook_int_rtx_1 (rtx)
-{
- return 1;
-}
-
-int
-hook_int_rtx_insn_0 (rtx_insn *)
-{
- return 0;
-}
-
-int
-hook_int_rtx_insn_unreachable (rtx_insn *)
-{
- gcc_unreachable ();
-}
-
-int
-hook_int_rtx_bool_0 (rtx, bool)
-{
- return 0;
-}
-
-int
-hook_int_rtx_mode_as_bool_0 (rtx, machine_mode, addr_space_t, bool)
-{
- return 0;
-}
-
-unsigned int
-hook_uint_void_0 (void)
-{
- return 0;
-}
-
-HOST_WIDE_INT
-hook_hwi_void_0 (void)
-{
- return 0;
-}
-
-void
-hook_void_tree (tree)
-{
-}
-
-void
-hook_void_FILEptr_tree (FILE *, tree)
-{
-}
-
-void
-hook_void_rtx_tree (rtx, tree)
-{
-}
-
-void
-hook_void_constcharptr (const char *)
-{
-}
-
-void
-hook_void_tree_treeptr (tree, tree *)
-{
-}
-
-void
-hook_void_int_int (int, int)
-{
-}
-
-bool
-hook_bool_tree_false (tree)
-{
- return false;
-}
-
-bool
-hook_bool_const_tree_false (const_tree)
-{
- return false;
-}
-
-bool
-hook_bool_const_tree_const_tree_true (const_tree, const_tree)
-{
- return true;
-}
-
-bool
-hook_bool_tree_true (tree)
-{
- return true;
-}
-
-bool
-hook_bool_const_tree_true (const_tree)
-{
- return true;
-}
-
-bool
-hook_bool_tree_tree_false (tree, tree)
-{
- return false;
-}
-
-bool
-hook_bool_tree_tree_true (tree, tree)
-{
- return true;
-}
-
-bool
-hook_bool_tree_bool_false (tree, bool)
-{
- return false;
-}
-
-bool
-hook_bool_rtx_insn_true (rtx_insn *)
-{
- return true;
-}
-
-bool
-hook_bool_rtx_false (rtx)
-{
- return false;
-}
-
-bool
-hook_bool_uintp_uintp_false (unsigned int *, unsigned int *)
-{
- return false;
-}
-
-bool
-hook_bool_rtx_mode_int_int_intp_bool_false (rtx, machine_mode, int, int,
- int *, bool)
-{
- return false;
-}
-
-bool
-hook_bool_wint_wint_uint_bool_true (const widest_int &, const widest_int &,
- unsigned int, bool)
-{
- return true;
-}
-
-/* Generic hook that takes an rtx and returns it. */
-rtx
-hook_rtx_rtx_identity (rtx x)
-{
- return x;
-}
-
-/* Generic hook that takes an rtx and returns NULL_RTX. */
-rtx
-hook_rtx_rtx_null (rtx)
-{
- return NULL;
-}
-
-/* Generic hook that takes a tree and an int and returns NULL_RTX. */
-rtx
-hook_rtx_tree_int_null (tree, int)
-{
- return NULL;
-}
-
-/* Generic hook that takes a machine mode and returns an unsigned int 0. */
-unsigned int
-hook_uint_mode_0 (machine_mode)
-{
- return 0;
-}
-
-/* Generic hook that takes no arguments and returns a NULL const string. */
-const char *
-hook_constcharptr_void_null (void)
-{
- return NULL;
-}
-
-/* Generic hook that takes no arguments and returns a NULL string. */
-char *
-hook_charptr_void_null (void)
-{
- return NULL;
-}
-
-/* Generic hook that takes a tree and returns a NULL string. */
-const char *
-hook_constcharptr_const_tree_null (const_tree)
-{
- return NULL;
-}
-
-tree
-hook_tree_tree_int_treep_bool_null (tree, int, tree *, bool)
-{
- return NULL;
-}
-
-tree
-hook_tree_tree_bool_null (tree, bool)
-{
- return NULL;
-}
-
-tree
-hook_tree_tree_tree_null (tree, tree)
-{
- return NULL;
-}
-
-tree
-hook_tree_tree_tree_tree_null (tree, tree, tree)
-{
- return NULL;
-}
-
-tree
-hook_tree_treeptr_tree_tree_int_boolptr_null (tree *, tree, tree, int, bool *)
-{
- return NULL;
-}
-
-/* Generic hook that takes an rtx_insn *and returns a NULL string. */
-const char *
-hook_constcharptr_const_rtx_insn_null (const rtx_insn *)
-{
- return NULL;
-}
-
-const char *
-hook_constcharptr_const_tree_const_tree_null (const_tree, const_tree)
-{
- return NULL;
-}
-
-const char *
-hook_constcharptr_int_const_tree_null (int, const_tree)
-{
- return NULL;
-}
-
-const char *
-hook_constcharptr_int_const_tree_const_tree_null (int, const_tree, const_tree)
-{
- return NULL;
-}
-
-/* Generic hook that takes a const_tree and returns NULL_TREE. */
-tree
-hook_tree_const_tree_null (const_tree)
-{
- return NULL;
-}
-
-/* Generic hook that takes no arguments and returns a NULL_TREE. */
-tree
-hook_tree_void_null (void)
-{
- return NULL;
-}
-
-/* Generic hook that takes a rtx_insn * and an int and returns a bool. */
-
-bool
-hook_bool_rtx_insn_int_false (rtx_insn *, int)
-{
- return false;
-}
-
-/* Generic hook that takes a rtx_insn * and an int and returns void. */
-
-void
-hook_void_rtx_insn_int (rtx_insn *, int)
-{
-}
-
-/* Generic hook that takes a struct gcc_options * and returns void. */
-
-void
-hook_void_gcc_optionsp (struct gcc_options *)
-{
-}
-
-/* Generic hook that takes an unsigned int and returns true. */
-
-bool
-hook_bool_uint_true (unsigned int)
-{
- return true;
-}
-
-/* Generic hook that takes an unsigned int, an unsigned int pointer and
- returns false. */
-
-bool
-hook_bool_uint_uintp_false (unsigned int, unsigned int *)
-{
- return false;
-}
-
-/* Generic hook that takes a register class and returns false. */
-bool
-hook_bool_reg_class_t_false (reg_class_t regclass ATTRIBUTE_UNUSED)
-{
- return false;
-}
-
-/* Generic hook that takes 2 machine_modes and a register class and
- returns true. */
-bool
-hook_bool_mode_mode_reg_class_t_true (machine_mode, machine_mode, reg_class_t)
-{
- return true;
-}
-
-/* Generic hook that takes a machine_mode and 2 register classes
- and returns false. */
-bool
-hook_bool_mode_reg_class_t_reg_class_t_false (machine_mode, reg_class_t,
- reg_class_t)
-{
- return false;
-}
-
-/* Generic hook that takes a mode and an unsigned HOST_WIDE_INT and
- returns no mode. */
-
-opt_machine_mode
-hook_optmode_mode_uhwi_none (machine_mode, unsigned HOST_WIDE_INT)
-{
- return opt_machine_mode ();
-}