PR debug/43479

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

diff --git a/gcc/ira.h b/gcc/ira.h
index 165274d..9688f74 100644 (file)
--- a/gcc/ira.h
+++ b/gcc/ira.h
@@ -1,6 +1,6 @@
 /* Communication between the Integrated Register Allocator (IRA) and
    the rest of the compiler.
-   Copyright (C) 2006, 2007, 2008
+   Copyright (C) 2006, 2007, 2008, 2009
    Free Software Foundation, Inc.
    Contributed by Vladimir Makarov <vmakarov@redhat.com>.
 
@@ -20,14 +20,63 @@ You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
+/* Number of given class hard registers available for the register
+   allocation for given classes.  */
+extern int ira_available_class_regs[N_REG_CLASSES];
+
+/* Map: hard register number -> cover class it belongs to.  If the
+   corresponding class is NO_REGS, the hard register is not available
+   for allocation.  */
+extern enum reg_class ira_hard_regno_cover_class[FIRST_PSEUDO_REGISTER];
+
+/* Number of cover classes.  Cover classes is non-intersected register
+   classes containing all hard-registers available for the
+   allocation.  */
+extern int ira_reg_class_cover_size;
+
+/* The array containing cover classes (see also comments for macro
+   IRA_COVER_CLASSES).  Only first IRA_REG_CLASS_COVER_SIZE elements are
+   used for this.  */
+extern enum reg_class ira_reg_class_cover[N_REG_CLASSES];
+
+/* Map of all register classes to corresponding cover class containing
+   the given class.  If given class is not a subset of a cover class,
+   we translate it into the cheapest cover class.  */
+extern enum reg_class ira_class_translate[N_REG_CLASSES];
+
+/* Map: register class x machine mode -> number of hard registers of
+   given class needed to store value of given mode.  If the number for
+   some hard-registers of the register class is different, the size
+   will be negative.  */
+extern int ira_reg_class_nregs[N_REG_CLASSES][MAX_MACHINE_MODE];
+
+/* Function specific hard registers can not be used for the register
+   allocation.  */
+extern HARD_REG_SET ira_no_alloc_regs;
+
 /* True if we have allocno conflicts.  It is false for non-optimized
    mode or when the conflict table is too big.  */
 extern bool ira_conflicts_p;
 
+/* Array analogous to macro MEMORY_MOVE_COST.  */
+extern short ira_memory_move_cost[MAX_MACHINE_MODE][N_REG_CLASSES][2];
+
+/* Array of number of hard registers of given class which are
+   available for the allocation.  The order is defined by the
+   allocation order.  */
+extern short ira_class_hard_regs[N_REG_CLASSES][FIRST_PSEUDO_REGISTER];
+
+/* The number of elements of the above array for given register
+   class.  */
+extern int ira_class_hard_regs_num[N_REG_CLASSES];
+
 extern void ira_init_once (void);
 extern void ira_init (void);
 extern void ira_finish_once (void);
+extern void ira_setup_eliminable_regset (void);
 extern rtx ira_eliminate_regs (rtx, enum machine_mode);
+extern void ira_set_pseudo_classes (FILE *);
+extern void ira_implicitly_set_insn_hard_regs (HARD_REG_SET *);
 
 extern void ira_sort_regnos_for_alter_reg (int *, int, unsigned int *);
 extern void ira_mark_allocation_change (int);