Imported gcc-4.4.3

[msp430-gcc.git] / gcc / cselib.h

diff --git a/gcc/cselib.h b/gcc/cselib.h
index 72885982fbf73a5e47f0ce0b80c5ef3cf9f4dd4f..59ccec6f1797b07c30a6a9f3b0aac6c3601f71c9 100644 (file)
--- a/gcc/cselib.h
+++ b/gcc/cselib.h
@@ -1,12 +1,12 @@
 /* Common subexpression elimination for GNU compiler.
    Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
 /* Common subexpression elimination for GNU compiler.
    Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,

-   1999 Free Software Foundation, Inc.
+   1999, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.

 
 This file is part of GCC.
 
 GCC 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
 
 This file is part of GCC.
 
 GCC 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 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later

 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY


@@ -15,33 +15,31 @@ 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
 for more details.
 
 You should have received a copy of the GNU General Public License

-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */

 
 /* Describe a value.  */
 
 /* Describe a value.  */

-typedef struct cselib_val_struct
+typedef struct cselib_val_struct GTY(())

 {
   /* The hash value.  */
   unsigned int value;
 {
   /* The hash value.  */
   unsigned int value;

-  union
-  {
-    /* A VALUE rtx that points back to this structure.  */
-    rtx val_rtx;
-    /* Used to keep a list of free cselib_val structures.  */
-    struct cselib_val_struct *next_free;
-  } u;
+
+  /* A VALUE rtx that points back to this structure.  */
+  rtx val_rtx;

 
   /* All rtl expressions that hold this value at the current time during a
      scan.  */
   struct elt_loc_list *locs;
 
   /* All rtl expressions that hold this value at the current time during a
      scan.  */
   struct elt_loc_list *locs;

+

   /* If this value is used as an address, points to a list of values that
      use it as an address in a MEM.  */
   struct elt_list *addr_list;
   /* If this value is used as an address, points to a list of values that
      use it as an address in a MEM.  */
   struct elt_list *addr_list;

+
+  struct cselib_val_struct *next_containing_mem;

 } cselib_val;
 
 /* A list of rtl expressions that hold the same value.  */
 } cselib_val;
 
 /* A list of rtl expressions that hold the same value.  */

-struct elt_loc_list
+struct elt_loc_list GTY(())

 {
   /* Next element in the list.  */
   struct elt_loc_list *next;
 {
   /* Next element in the list.  */
   struct elt_loc_list *next;


@@ -52,17 +50,22 @@ struct elt_loc_list
 };
 
 /* A list of cselib_val structures.  */
 };
 
 /* A list of cselib_val structures.  */

-struct elt_list
+struct elt_list GTY(())

 {
   struct elt_list *next;
   cselib_val *elt;
 };
 
 {
   struct elt_list *next;
   cselib_val *elt;
 };
 

-extern cselib_val *cselib_lookup       PARAMS ((rtx, enum machine_mode, int));
-extern void cselib_update_varray_sizes PARAMS ((void));
-extern void cselib_init                        PARAMS ((void));
-extern void cselib_finish              PARAMS ((void));
-extern void cselib_process_insn                PARAMS ((rtx));
-extern int rtx_equal_for_cselib_p      PARAMS ((rtx, rtx));
-extern int references_value_p          PARAMS ((rtx, int));
-extern rtx cselib_subst_to_values      PARAMS ((rtx));
+extern void (*cselib_discard_hook) (cselib_val *);
+
+extern cselib_val *cselib_lookup (rtx, enum machine_mode, int);
+extern void cselib_init (bool record_memory);
+extern void cselib_clear_table (void);
+extern void cselib_finish (void);
+extern void cselib_process_insn (rtx);
+extern enum machine_mode cselib_reg_set_mode (const_rtx);
+extern int rtx_equal_for_cselib_p (rtx, rtx);
+extern int references_value_p (const_rtx, int);
+extern rtx cselib_expand_value_rtx (rtx, bitmap, int);
+extern rtx cselib_subst_to_values (rtx);
+extern void cselib_invalidate_rtx (rtx);