* init.c (build_new): Allow enumeration types for the array-bounds

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

diff --git a/gcc/regs.h b/gcc/regs.h
index ff267fe..c219ecc 100644 (file)
--- a/gcc/regs.h
+++ b/gcc/regs.h
@@ -1,5 +1,6 @@
 /* Define per-register tables for data flow info and register allocation.
-   Copyright (C) 1987, 93-98, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1993, 1994, 1995, 1996, 1997, 1998,
+   1999, 2000 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -54,13 +55,12 @@ typedef struct reg_info_def
   int live_length;             /* # of instructions (REG n) is live */
   int calls_crossed;           /* # of calls (REG n) is live across */
   int basic_block;             /* # of basic blocks (REG n) is used in */
-  char changes_size;           /* whether (SUBREG (REG n)) changes size */
+  char changes_mode;           /* whether (SUBREG (REG n)) exists and 
+                                  is illegal.  */
 } reg_info;
 
 extern varray_type reg_n_info;
 
-extern unsigned int reg_n_max;
-
 /* Indexed by n, gives number of times (REG n) is used or set.
    References within loops may be counted more times.  */
 
@@ -81,10 +81,11 @@ extern unsigned int reg_n_max;
 #define REG_N_DEATHS(N) (VARRAY_REG (reg_n_info, N)->deaths)
 
 /* Indexed by N; says whether a pseudo register N was ever used
-   within a SUBREG that changes the size of the reg.  Some machines prohibit
-   such objects to be in certain (usually floating-point) registers.  */
+   within a SUBREG that changes the mode of the reg in some way
+   that is illegal for a given class (usually floating-point)
+   of registers.  */
 
-#define REG_CHANGES_SIZE(N) (VARRAY_REG (reg_n_info, N)->changes_size)
+#define REG_CHANGES_MODE(N) (VARRAY_REG (reg_n_info, N)->changes_mode)
 
 /* Get the number of consecutive words required to hold pseudo-reg N.  */
 
@@ -138,7 +139,7 @@ extern char regs_ever_live[FIRST_PSEUDO_REGISTER];
 
 /* Vector indexed by hardware reg giving its name.  */
 
-extern const char *reg_names[FIRST_PSEUDO_REGISTER];
+extern const char * reg_names[FIRST_PSEUDO_REGISTER];
 
 /* 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
@@ -202,4 +203,4 @@ extern int caller_save_needed;
 #endif
 
 /* Allocate reg_n_info tables */
-extern void allocate_reg_info PROTO((size_t, int, int));
+extern void allocate_reg_info PARAMS ((size_t, int, int));