expr.c (emit_group_store): Correct operand order in call to subreg_lowpart_offset.

	* expr.c (emit_group_store): Correct operand order in call to
	subreg_lowpart_offset.  Always create paradoxical SUBREGs with
	a SUBREG_BYTE of zero.

From-SVN: r112887

gcc/ChangeLog

+2006-04-12  Roger Sayle  <roger@eyesopen.com>
+
+	* expr.c (emit_group_store): Correct operand order in call to
+	subreg_lowpart_offset.  Always create paradoxical SUBREGs with
+	a SUBREG_BYTE of zero.
+
 2006-04-12  Richard Guenther  <rguenther@suse.de>
 
 	* profile.c (compute_branch_probabilities): Remove code

gcc/expr.c

@@ -1940,11 +1940,11 @@ emit_group_store (rtx orig_dst, rtx src, tree type ATTRIBUTE_UNUSED, int ssize)
       if (start < finish)
 	{
 	  inner = GET_MODE (tmps[start]);
-	  bytepos = subreg_lowpart_offset (outer, inner);
+	  bytepos = subreg_lowpart_offset (inner, outer);
 	  if (INTVAL (XEXP (XVECEXP (src, 0, start), 1)) == bytepos)
 	    {
 	      temp = simplify_gen_subreg (outer, tmps[start],
-					  inner, bytepos);
+					  inner, 0);
 	      if (temp)
 		{
 		  emit_move_insn (dst, temp);
@@ -1959,11 +1959,11 @@ emit_group_store (rtx orig_dst, rtx src, tree type ATTRIBUTE_UNUSED, int ssize)
 	  && start < finish - 1)
 	{
 	  inner = GET_MODE (tmps[finish - 1]);
-	  bytepos = subreg_lowpart_offset (outer, inner);
+	  bytepos = subreg_lowpart_offset (inner, outer);
 	  if (INTVAL (XEXP (XVECEXP (src, 0, finish - 1), 1)) == bytepos)
 	    {
 	      temp = simplify_gen_subreg (outer, tmps[finish - 1],
-					  inner, bytepos);
+					  inner, 0);
 	      if (temp)
 		{
 		  emit_move_insn (dst, temp);