X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fcselib.h;h=fccc6a2cd32fcff970625a279bea5bde9aff80cd;hb=b20cb873ccf058adcb0687cfac98445ee8132ab6;hp=073384d85ab4640727bee52738d0f794abea397c;hpb=38a898c637382a0aee991ab84f5719a2f0a72a35;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/cselib.h b/gcc/cselib.h
index 073384d85ab..fccc6a2cd32 100644
--- 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,
-   1999, 2003 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
-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
@@ -15,26 +15,21 @@ 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 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.  */
-typedef struct cselib_val_struct GTY(())
-{
+typedef struct GTY(()) cselib_val_struct {
   /* The hash value.  */
   unsigned int value;
-  union cselib_val_u
-  {
-    /* A VALUE rtx that points back to this structure.  */
-    rtx GTY ((tag ("1"))) val_rtx;
-    /* Used to keep a list of free cselib_val structures.  */
-    struct cselib_val_struct * GTY ((skip (""))) next_free;
-  } GTY ((desc ("1"))) 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;
+
   /* 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;
@@ -43,31 +38,31 @@ typedef struct cselib_val_struct GTY(())
 } cselib_val;
 
 /* A list of rtl expressions that hold the same value.  */
-struct elt_loc_list GTY(())
-{
+struct GTY(()) elt_loc_list {
   /* Next element in the list.  */
   struct elt_loc_list *next;
   /* An rtl expression that holds the value.  */
   rtx loc;
   /* The insn that made the equivalence.  */
   rtx setting_insn;
-  /* True when setting insn is inside libcall.  */
-  bool in_libcall;
 };
 
 /* A list of cselib_val structures.  */
-struct elt_list GTY(())
-{
+struct GTY(()) elt_list {
   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 enum machine_mode cselib_reg_set_mode 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);