* gcc-interface/trans.c (Case_Statement_to_gnu): Bool-ify variable.

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

diff --git a/gcc/regs.h b/gcc/regs.h
index f0679f7..01325b0 100644 (file)
--- a/gcc/regs.h
+++ b/gcc/regs.h
@@ -1,6 +1,7 @@
 /* Define per-register tables for data flow info and register allocation.
    Copyright (C) 1987, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+   1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008 Free Software
+   Foundation, Inc.
 
 This file is part of GCC.
 
@@ -21,7 +22,6 @@ along with GCC; see the file COPYING3.  If not see
 #ifndef GCC_REGS_H
 #define GCC_REGS_H
 
-#include "varray.h"
 #include "obstack.h"
 #include "hard-reg-set.h"
 #include "basic-block.h"
@@ -37,10 +37,6 @@ along with GCC; see the file COPYING3.  If not see
 #define REGMODE_NATURAL_SIZE(MODE)     UNITS_PER_WORD
 #endif
 
-#ifndef SMALL_REGISTER_CLASSES
-#define SMALL_REGISTER_CLASSES 0
-#endif
-
 /* Maximum register number used in this function, plus one.  */
 
 extern int max_regno;
@@ -53,7 +49,7 @@ extern int max_regno;
    and is not using incremental df scanning.
 
    At the end of a pass that uses REG_N_REFS and REG_N_SETS, a call
-   should be made to regstat_free_n_sets_and_refs.  
+   should be made to regstat_free_n_sets_and_refs.
 
    Local alloc seems to play pretty loose with these values.
    REG_N_REFS is set to 0 if the register is used in an asm.
@@ -129,7 +125,7 @@ extern size_t reg_info_p_size;
 
 #define REG_FREQ(N) (reg_info_p[N].freq)
 
-/* The weights for each insn varries from 0 to REG_FREQ_BASE.
+/* The weights for each insn varies from 0 to REG_FREQ_BASE.
    This constant does not need to be high, as in infrequently executed
    regions we want to count instructions equivalently to optimize for
    size instead of speed.  */
@@ -261,9 +257,27 @@ extern int caller_save_needed;
 #define HARD_REGNO_CALL_PART_CLOBBERED(REGNO, MODE) 0
 #endif
 
+/* 1 if the corresponding class does contain register of given
+   mode.  */
+extern char contains_reg_of_mode [N_REG_CLASSES] [MAX_MACHINE_MODE];
+
+typedef unsigned short move_table[N_REG_CLASSES];
+
+/* Maximum cost of moving from a register in one class to a register
+   in another class.  */
+extern move_table *move_cost[MAX_MACHINE_MODE];
+
 /* Specify number of hard registers given machine mode occupy.  */
 extern unsigned char hard_regno_nregs[FIRST_PSEUDO_REGISTER][MAX_MACHINE_MODE];
 
+/* Similar, but here we don't have to move if the first index is a
+   subset of the second so in that case the cost is zero.  */
+extern move_table *may_move_in_cost[MAX_MACHINE_MODE];
+
+/* Similar, but here we don't have to move if the first index is a
+   superset of the second so in that case the cost is zero.  */
+extern move_table *may_move_out_cost[MAX_MACHINE_MODE];
+
 /* Return an exclusive upper bound on the registers occupied by hard
    register (reg:MODE REGNO).  */