1 files changed, 571 insertions, 0 deletions
diff --git a/gcc/hooks.cc b/gcc/hooks.cc
new file mode 100644
index 0000000..b29233f
--- /dev/null
+++ b/gcc/hooks.cc
@@ -0,0 +1,571 @@
+/* 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 ();
+}