* function.c (purge_addressof_1): Postpone insn in fewer cases.

From-SVN: r66286

gcc/ChangeLog

+2003-04-30  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
+
+	* function.c (purge_addressof_1): Postpone insn in fewer cases.
+
 2003-04-29  Geoffrey Keating  <geoffk@apple.com>
 
 	* config/rs6000/host-darwin.c (segv_handler): When -dH is used,

gcc/function.c

@@ -3075,13 +3075,6 @@ purge_addressof_1 (loc, insn, force, store, may_postpone, ht)
     {
       rtx sub = XEXP (XEXP (x, 0), 0);
 
-      if (may_postpone)
-	{
-	  if (!postponed_insns || XEXP (postponed_insns, 0) != insn)
-	    postponed_insns = alloc_INSN_LIST (insn, postponed_insns);
-	  return true;
-	}
-
       if (GET_CODE (sub) == MEM)
 	sub = adjust_address_nv (sub, GET_MODE (x), 0);
       else if (GET_CODE (sub) == REG
@@ -3091,6 +3084,15 @@ purge_addressof_1 (loc, insn, force, store, may_postpone, ht)
 	{
 	  int size_x, size_sub;
 
+	  if (may_postpone)
+	    {
+	      /* Postpone for now, so that we do not emit bitfield arithmetics
+		 unless there is some benefit from it.  */
+	      if (!postponed_insns || XEXP (postponed_insns, 0) != insn)
+		postponed_insns = alloc_INSN_LIST (insn, postponed_insns);
+	      return true;
+	    }
+
 	  if (!insn)
 	    {
 	      /* When processing REG_NOTES look at the list of