Add -mabi=n32 support.

[pf3gnuchains/gcc-fork.git] / gcc / caller-save.c

diff --git a/gcc/caller-save.c b/gcc/caller-save.c
index 5b09606..6dc9018 100644 (file)
--- a/gcc/caller-save.c
+++ b/gcc/caller-save.c
@@ -1,5 +1,5 @@
 /* Save and restore call-clobbered registers which are live across a call.
-   Copyright (C) 1989, 1992, 1994 Free Software Foundation, Inc.
+   Copyright (C) 1989, 1992, 1994, 1995 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -15,7 +15,8 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
 
 #include "config.h"
 #include "rtl.h"
@@ -32,8 +33,8 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define MAX_MOVE_MAX MOVE_MAX
 #endif
 
-#ifndef MAX_UNITS_PER_WORD
-#define MAX_UNITS_PER_WORD UNITS_PER_WORD
+#ifndef MIN_UNITS_PER_WORD
+#define MIN_UNITS_PER_WORD UNITS_PER_WORD
 #endif
 
 /* Modes for each hard register that we can save.  The smallest mode is wide
@@ -42,13 +43,13 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
    If that is not possible the save is done one register at a time.  */
 
 static enum machine_mode 
-  regno_save_mode[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MAX_UNITS_PER_WORD + 1];
+  regno_save_mode[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MIN_UNITS_PER_WORD + 1];
 
 /* For each hard register, a place on the stack where it can be saved,
    if needed.  */
 
 static rtx 
-  regno_save_mem[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MAX_UNITS_PER_WORD + 1];
+  regno_save_mem[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MIN_UNITS_PER_WORD + 1];
 
 /* We will only make a register eligible for caller-save if it can be
    saved in its widest mode with a simple SET insn as long as the memory
@@ -57,9 +58,9 @@ static rtx
    be recognized.  */
 
 static enum insn_code 
-  reg_save_code[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MAX_UNITS_PER_WORD + 1];
+  reg_save_code[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MIN_UNITS_PER_WORD + 1];
 static enum insn_code 
-  reg_restore_code[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MAX_UNITS_PER_WORD + 1];
+  reg_restore_code[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MIN_UNITS_PER_WORD + 1];
 
 /* Set of hard regs currently live (during scan of all insns).  */
 
@@ -472,7 +473,14 @@ save_call_clobbered_regs (insn_mode)
                      n_regs_saved++;
                }
              else
-               note_stores (PATTERN (insn), set_reg_live);
+               {
+                 note_stores (PATTERN (insn), set_reg_live);
+#ifdef AUTO_INC_DEC
+                 for (link = REG_NOTES (insn); link; link = XEXP (link, 1))
+                   if (REG_NOTE_KIND (link) == REG_INC)
+                     set_reg_live (XEXP (link, 0), NULL_RTX);
+#endif
+               }
 
              for (link = REG_NOTES (insn); link; link = XEXP (link, 1))
                if (REG_NOTE_KIND (link) == REG_UNUSED)