X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fcselib.h;h=72094439956fb88e753bb23993439729c236da58;hp=72885982fbf73a5e47f0ce0b80c5ef3cf9f4dd4f;hb=d4b16cebcdc61fcee2e26f9bc09abf7c40cffc39;hpb=f12b58b3384f7b4faba39eaa3ebc67c3049f2a3c diff --git a/gcc/cselib.h b/gcc/cselib.h index 72885982fbf..72094439956 100644 --- a/gcc/cselib.h +++ b/gcc/cselib.h @@ -1,6 +1,6 @@ /* 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 Free Software Foundation, Inc. This file is part of GCC. @@ -16,21 +16,21 @@ 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. */ +Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301, USA. */ /* Describe a value. */ -typedef struct cselib_val_struct +typedef struct cselib_val_struct GTY(()) { /* The hash value. */ unsigned int value; - union + union cselib_val_u { /* A VALUE rtx that points back to this structure. */ - rtx val_rtx; + rtx GTY ((tag ("1"))) val_rtx; /* Used to keep a list of free cselib_val structures. */ - struct cselib_val_struct *next_free; - } u; + struct cselib_val_struct * GTY ((skip)) next_free; + } GTY ((desc ("1"))) u; /* All rtl expressions that hold this value at the current time during a scan. */ @@ -38,10 +38,12 @@ typedef struct cselib_val_struct /* 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. */ -struct elt_loc_list +struct elt_loc_list GTY(()) { /* Next element in the list. */ struct elt_loc_list *next; @@ -49,20 +51,24 @@ struct elt_loc_list 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 +struct elt_list GTY(()) { 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 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 (rtx); +extern int rtx_equal_for_cselib_p (rtx, rtx); +extern int references_value_p (rtx, int); +extern rtx cselib_subst_to_values (rtx); +extern void cselib_invalidate_rtx (rtx);