| /* General-purpose hooks. |
| Copyright (C) 2002-2017 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 (unsigned int, unsigned int) and returns true. */ |
| bool |
| hook_bool_uint_uint_true (unsigned int, unsigned int) |
| { |
| return true; |
| } |
| |
| /* Generic hook that takes (unsigned int, machine_mode) and returns false. */ |
| bool |
| hook_bool_uint_mode_false (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_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_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_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_tree_null (tree, tree) |
| { |
| return NULL; |
| } |
| |
| tree |
| hook_tree_tree_tree_tree_null (tree, tree, tree) |
| { |
| 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, 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; |
| } |
| |