2008-09-18 Martin Jambor <mjambor@suse.cz>

[pf3gnuchains/gcc-fork.git] / gcc / reload1.c

diff --git a/gcc/reload1.c b/gcc/reload1.c
index f9d924c..93457c1 100644 (file)
--- a/gcc/reload1.c
+++ b/gcc/reload1.c
@@ -2176,18 +2176,28 @@ alter_reg (int i, int from_reg, bool dont_share_p)
         inherent space, and no less total space, then the previous slot.  */
       else if (from_reg == -1 || (! dont_share_p && flag_ira && optimize))
        {
+         rtx stack_slot;
          alias_set_type alias_set = new_alias_set ();
 
          /* No known place to spill from => no slot to reuse.  */
          x = assign_stack_local (mode, total_size,
                                  min_align > inherent_align
                                  || total_size > inherent_size ? -1 : 0);
+
+         stack_slot = x;
+
          if (BYTES_BIG_ENDIAN)
            /* Cancel the  big-endian correction done in assign_stack_local.
               Get the address of the beginning of the slot.
               This is so we can do a big-endian correction unconditionally
               below.  */
            adjust = inherent_size - total_size;
+           if (adjust)
+             stack_slot
+               = adjust_address_nv (x, mode_for_size (total_size
+                                                      * BITS_PER_UNIT,
+                                                      MODE_INT, 1),
+                                    adjust);
 
          /* Nothing can alias this slot except this pseudo.  */
          set_mem_alias_set (x, alias_set);
@@ -2195,7 +2205,7 @@ alter_reg (int i, int from_reg, bool dont_share_p)
 
          if (! dont_share_p && flag_ira && optimize)
            /* Inform IRA about allocation a new stack slot.  */
-           ira_mark_new_stack_slot (x, i, total_size);
+           ira_mark_new_stack_slot (stack_slot, i, total_size);
        }
 
       /* Reuse a stack slot if possible.  */
@@ -2709,7 +2719,7 @@ eliminate_regs_1 (rtx x, enum machine_mode mem_mode, rtx insn,
              /* If this is a REG_DEAD note, it is not valid anymore.
                 Using the eliminated version could result in creating a
                 REG_DEAD note for the stack or frame pointer.  */
-             if (GET_MODE (x) == REG_DEAD)
+             if (REG_NOTE_KIND (x) == REG_DEAD)
                return (XEXP (x, 1)
                        ? eliminate_regs_1 (XEXP (x, 1), mem_mode, insn, true)
                        : NULL_RTX);