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authorBen Cheng <bccheng@google.com>2014-03-26 05:37:19 (GMT)
committerBen Cheng <bccheng@google.com>2014-03-26 05:37:19 (GMT)
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/hooks.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/hooks.c')
-rw-r--r--gcc-4.9/gcc/hooks.c469
1 files changed, 469 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/hooks.c b/gcc-4.9/gcc/hooks.c
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+/* General-purpose hooks.
+ Copyright (C) 2002-2014 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 a ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+/* Generic hook that takes (bool, struct gcc_options *) and returns false. */
+bool
+hook_bool_bool_gcc_optionsp_false (bool a ATTRIBUTE_UNUSED,
+ struct gcc_options *opts ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+/* Generic hook that takes const int, const int) and returns true. */
+bool hook_bool_const_int_const_int_true (const int a ATTRIBUTE_UNUSED,
+ const int b ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+/* Generic hook that takes (enum machine_mode) and returns false. */
+bool
+hook_bool_mode_false (enum machine_mode mode ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+/* Generic hook that takes (enum machine_mode) and returns true. */
+bool
+hook_bool_mode_true (enum machine_mode mode ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+/* Generic hook that takes (enum machine_mode, const_rtx) and returns false. */
+bool
+hook_bool_mode_const_rtx_false (enum machine_mode mode ATTRIBUTE_UNUSED,
+ const_rtx value ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+/* Generic hook that takes (enum machine_mode, const_rtx) and returns true. */
+bool
+hook_bool_mode_const_rtx_true (enum machine_mode mode ATTRIBUTE_UNUSED,
+ const_rtx value ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+/* Generic hook that takes (enum machine_mode, rtx) and returns false. */
+bool
+hook_bool_mode_rtx_false (enum machine_mode mode ATTRIBUTE_UNUSED,
+ rtx value ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+/* Generic hook that takes (enum machine_mode, rtx) and returns true. */
+bool
+hook_bool_mode_rtx_true (enum machine_mode mode ATTRIBUTE_UNUSED,
+ rtx value ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+/* Generic hook that takes (rtx, rtx) and returns true. */
+bool
+hook_bool_const_rtx_const_rtx_true (const_rtx follower ATTRIBUTE_UNUSED,
+ const_rtx followee ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+/* Generic hook that takes (enum machine_mode, unsigned HOST_WIDE_INT)
+ and returns false. */
+bool
+hook_bool_mode_uhwi_false (enum machine_mode mode ATTRIBUTE_UNUSED,
+ unsigned HOST_WIDE_INT value ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+/* Generic hook that takes (FILE *, const char *) and does nothing. */
+void
+hook_void_FILEptr_constcharptr (FILE *a ATTRIBUTE_UNUSED, const char *b ATTRIBUTE_UNUSED)
+{
+}
+
+/* Generic hook that takes (FILE *, rtx) and returns false. */
+bool
+hook_bool_FILEptr_rtx_false (FILE *a ATTRIBUTE_UNUSED,
+ rtx b ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+/* Generic hook that takes (gimple_stmt_iterator *) and returns
+ false. */
+bool
+hook_bool_gsiptr_false (gimple_stmt_iterator *a ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+/* Used for the TARGET_ASM_CAN_OUTPUT_MI_THUNK hook. */
+bool
+hook_bool_const_tree_hwi_hwi_const_tree_false (const_tree a ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT b ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT c ATTRIBUTE_UNUSED,
+ const_tree d ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+bool
+hook_bool_const_tree_hwi_hwi_const_tree_true (const_tree a ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT b ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT c ATTRIBUTE_UNUSED,
+ const_tree d ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+bool
+default_can_output_mi_thunk_no_vcall (const_tree a ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT b ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT c,
+ const_tree d ATTRIBUTE_UNUSED)
+{
+ return c == 0;
+}
+
+int
+hook_int_uint_mode_1 (unsigned int a ATTRIBUTE_UNUSED,
+ enum machine_mode b ATTRIBUTE_UNUSED)
+{
+ return 1;
+}
+
+int
+hook_int_const_tree_0 (const_tree a ATTRIBUTE_UNUSED)
+{
+ return 0;
+}
+
+/* ??? Used for comp_type_attributes, which ought to return bool. */
+int
+hook_int_const_tree_const_tree_1 (const_tree a ATTRIBUTE_UNUSED, const_tree b ATTRIBUTE_UNUSED)
+{
+ return 1;
+}
+
+int
+hook_int_rtx_0 (rtx a ATTRIBUTE_UNUSED)
+{
+ return 0;
+}
+
+int
+hook_int_rtx_1 (rtx)
+{
+ return 1;
+}
+
+int
+hook_int_rtx_unreachable (rtx)
+{
+ gcc_unreachable ();
+}
+
+int
+hook_int_rtx_bool_0 (rtx a ATTRIBUTE_UNUSED, bool b ATTRIBUTE_UNUSED)
+{
+ return 0;
+}
+
+int
+hook_int_rtx_mode_as_bool_0 (rtx, enum machine_mode, addr_space_t, bool)
+{
+ return 0;
+}
+
+unsigned int
+hook_uint_void_0 (void)
+{
+ return 0;
+}
+
+void
+hook_void_tree (tree a ATTRIBUTE_UNUSED)
+{
+}
+
+void
+hook_void_constcharptr (const char *a ATTRIBUTE_UNUSED)
+{
+}
+
+void
+hook_void_tree_treeptr (tree a ATTRIBUTE_UNUSED, tree *b ATTRIBUTE_UNUSED)
+{
+}
+
+void
+hook_void_int_int (int a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED)
+{
+}
+
+bool
+hook_bool_tree_false (tree a ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+bool
+hook_bool_const_tree_false (const_tree a ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+bool
+hook_bool_tree_true (tree a ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+bool
+hook_bool_const_tree_true (const_tree a ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+bool
+hook_bool_tree_tree_false (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+bool
+hook_bool_tree_tree_true (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+bool
+hook_bool_tree_bool_false (tree a ATTRIBUTE_UNUSED, bool b ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+bool
+hook_bool_rtx_true (rtx a ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+bool
+hook_bool_rtx_false (rtx a ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+bool
+hook_bool_uintp_uintp_false (unsigned int *a ATTRIBUTE_UNUSED,
+ unsigned int *b ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+bool
+hook_bool_rtx_int_int_int_intp_bool_false (rtx a ATTRIBUTE_UNUSED,
+ int b ATTRIBUTE_UNUSED,
+ int c ATTRIBUTE_UNUSED,
+ int d ATTRIBUTE_UNUSED,
+ int *e ATTRIBUTE_UNUSED,
+ bool speed_p ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+bool
+hook_bool_dint_dint_uint_bool_true (double_int, double_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 x ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+/* Generic hook that takes a tree and an int and returns NULL_RTX. */
+rtx
+hook_rtx_tree_int_null (tree a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+/* Generic hook that takes a machine mode and returns an unsigned int 0. */
+unsigned int
+hook_uint_mode_0 (enum machine_mode m ATTRIBUTE_UNUSED)
+{
+ return 0;
+}
+
+/* Generic hook that takes three trees and returns the last one as is. */
+tree
+hook_tree_tree_tree_tree_3rd_identity (tree a ATTRIBUTE_UNUSED,
+ tree b ATTRIBUTE_UNUSED, tree c)
+{
+ return c;
+}
+
+/* Generic hook that takes no arguments and returns a NULL string. */
+const char *
+hook_constcharptr_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 t ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+tree
+hook_tree_tree_int_treep_bool_null (tree t0 ATTRIBUTE_UNUSED,
+ int i ATTRIBUTE_UNUSED,
+ tree *p ATTRIBUTE_UNUSED,
+ bool ignore ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+tree
+hook_tree_tree_tree_null (tree t0 ATTRIBUTE_UNUSED, tree t1 ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+tree
+hook_tree_tree_tree_tree_null (tree t0 ATTRIBUTE_UNUSED,
+ tree t1 ATTRIBUTE_UNUSED,
+ tree t2 ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+/* Generic hook that takes a rtx and returns a NULL string. */
+const char *
+hook_constcharptr_const_rtx_null (const_rtx r ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+const char *
+hook_constcharptr_const_tree_const_tree_null (const_tree t0 ATTRIBUTE_UNUSED,
+ const_tree t1 ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+const char *
+hook_constcharptr_int_const_tree_null (int i ATTRIBUTE_UNUSED,
+ const_tree t0 ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+const char *
+hook_constcharptr_int_const_tree_const_tree_null (int i ATTRIBUTE_UNUSED,
+ const_tree t0 ATTRIBUTE_UNUSED,
+ const_tree t1 ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+/* Generic hook that takes a const_tree and returns NULL_TREE. */
+tree
+hook_tree_const_tree_null (const_tree t ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+/* Generic hook that takes a rtx and an int and returns a bool. */
+
+bool
+hook_bool_rtx_int_false (rtx insn ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+/* Generic hook that takes a rtx and an int and returns void. */
+
+void
+hook_void_rtx_int (rtx insn ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
+{
+}
+
+/* Generic hook that takes a struct gcc_options * and returns void. */
+
+void
+hook_void_gcc_optionsp (struct gcc_options *opts ATTRIBUTE_UNUSED)
+{
+}