2004-06-03 Chris Demetriou <cgd@broadcom.com>

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

diff --git a/gcc/regs.h b/gcc/regs.h
index b2aeb5f..c100bde 100644 (file)
--- a/gcc/regs.h
+++ b/gcc/regs.h
@@ -1,6 +1,6 @@
 /* Define per-register tables for data flow info and register allocation.
    Copyright (C) 1987, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2003 Free Software Foundation, Inc.
+   1999, 2000, 2003, 2004 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -19,6 +19,8 @@ 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.  */
 
+#ifndef GCC_REGS_H
+#define GCC_REGS_H
 
 #include "varray.h"
 #include "hard-reg-set.h"
@@ -153,11 +155,14 @@ extern bitmap_head subregs_of_mode;
 
 extern short *reg_renumber;
 
-/* Vector indexed by hardware reg
-   saying whether that reg is ever used.  */
+/* Vector indexed by hardware reg saying whether that reg is ever used.  */
 
 extern char regs_ever_live[FIRST_PSEUDO_REGISTER];
 
+/* Like regs_ever_live, but saying whether reg is set by asm statements.  */
+
+extern char regs_asm_clobbered[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
    it will be a MODE_FLOAT or a MODE_CC mode, whichever is valid for the
@@ -221,3 +226,8 @@ extern int caller_save_needed;
 
 /* Allocate reg_n_info tables */
 extern void allocate_reg_info (size_t, int, int);
+
+/* Specify number of hard registers given machine mode occupy.  */
+extern unsigned char hard_regno_nregs[FIRST_PSEUDO_REGISTER][MAX_MACHINE_MODE];
+
+#endif /* GCC_REGS_H */