simplify-rtx.c (simplify_subreg): Fix offset calculation for complex values within a CONCAT.

	* simplify-rtx.c (simplify_subreg): Fix offset calculation
	for complex values within a CONCAT.

From-SVN: r43177

gcc/ChangeLog

+2001-06-11  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
+
+	* simplify-rtx.c (simplify_subreg): Fix offset calculation
+	for complex values within a CONCAT.
+
 2001-06-11  Joseph S. Myers  <jsm28@cam.ac.uk>
 
 	* doc/install.texi: Update details of what components are included

gcc/simplify-rtx.c

@@ -2423,11 +2423,11 @@ simplify_subreg (outermode, op, innermode, byte)
      of real and imaginary part.  */
   if (GET_CODE (op) == CONCAT)
     {
-      int is_realpart = byte < GET_MODE_UNIT_SIZE (innermode) / 2;
+      int is_realpart = byte < GET_MODE_UNIT_SIZE (innermode);
       rtx part = is_realpart ? XEXP (op, 0) : XEXP (op, 1);
       unsigned int final_offset;
 
-      final_offset = byte % (GET_MODE_UNIT_SIZE (innermode) / 2);
+      final_offset = byte % (GET_MODE_UNIT_SIZE (innermode));
       return simplify_subreg (outermode, part, GET_MODE (part), final_offset);
     }