2005-12-22 Dale Johannesen <dalej@apple.com>

[pf3gnuchains/gcc-fork.git] / gcc / regs.h

diff --git a/gcc/regs.h b/gcc/regs.h
index c100bde..d29e0e1 100644 (file)
--- a/gcc/regs.h
+++ b/gcc/regs.h
@@ -16,13 +16,14 @@ 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.  */
 
 #ifndef GCC_REGS_H
 #define GCC_REGS_H
 
 #include "varray.h"
+#include "obstack.h"
 #include "hard-reg-set.h"
 #include "basic-block.h"
 
@@ -50,7 +51,6 @@ typedef struct reg_info_def
 {                              /* fields set by reg_scan */
   int first_uid;               /* UID of first insn to use (REG n) */
   int last_uid;                        /* UID of last insn to use (REG n) */
-  int last_note_uid;           /* UID of last note to use (REG n) */
 
                                /* fields set by reg_scan & flow_analysis */
   int sets;                    /* # of times (REG n) is set */
@@ -61,15 +61,12 @@ typedef struct reg_info_def
   int deaths;                  /* # of times (REG n) dies */
   int live_length;             /* # of instructions (REG n) is live */
   int calls_crossed;           /* # of calls (REG n) is live across */
+  int throw_calls_crossed;     /* # of calls that may throw (REG n) is live across */
   int basic_block;             /* # of basic blocks (REG n) is used in */
-  char changes_mode;           /* whether (SUBREG (REG n)) exists and
-                                  is illegal.  */
 } reg_info;
 
 extern varray_type reg_n_info;
 
-extern bitmap_head subregs_of_mode;
-
 /* Indexed by n, gives number of times (REG n) is used or set.  */
 
 #define REG_N_REFS(N) (VARRAY_REG (reg_n_info, N)->refs)
@@ -129,6 +126,12 @@ extern bitmap_head subregs_of_mode;
 
 #define REG_N_CALLS_CROSSED(N) (VARRAY_REG (reg_n_info, N)->calls_crossed)
 
+/* Indexed by N, gives number of CALL_INSNS that may throw, across which
+   (REG n) is live.  */
+
+#define REG_N_THROWING_CALLS_CROSSED(N) \
+  (VARRAY_REG (reg_n_info, N)->throw_calls_crossed)
+
 /* Total number of instructions at which (REG n) is live.
    The larger this is, the less priority (REG n) gets for
    allocation in a hard register (in global-alloc).
@@ -163,6 +166,10 @@ extern char regs_ever_live[FIRST_PSEUDO_REGISTER];
 
 extern char regs_asm_clobbered[FIRST_PSEUDO_REGISTER];
 
+/* Vector indexed by machine mode saying whether there are regs of that mode.  */
+
+extern bool have_regs_of_mode [MAX_MACHINE_MODE];
+
 /* For each hard register, the widest mode object that it can contain.
    This will be a MODE_INT mode if the register can hold integers.  Otherwise
    it will be a MODE_FLOAT or a MODE_CC mode, whichever is valid for the
@@ -185,10 +192,6 @@ extern enum machine_mode reg_raw_mode[FIRST_PSEUDO_REGISTER];
 
 #define REGNO_LAST_UID(N) (VARRAY_REG (reg_n_info, N)->last_uid)
 
-/* Similar, but includes insns that mention the reg in their notes.  */
-
-#define REGNO_LAST_NOTE_UID(N) (VARRAY_REG (reg_n_info, N)->last_note_uid)
-
 /* List made of EXPR_LIST rtx's which gives pairs of pseudo registers
    that have to go in the same hard reg.  */
 extern rtx regs_may_share;