2016-02-05   Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/69274
	* ira.c (ira_setup_alts): Do not change recog_data.operand
	order.

--- gcc/ira.c	(revision 231814)
+++ gcc/ira.c	(working copy)
@@ -1888,10 +1888,11 @@ ira_setup_alts (rtx_insn *insn, HARD_REG
 	}
       if (commutative < 0)
 	break;
-      if (curr_swapped)
-	break;
+      /* Swap forth and back to avoid changing recog_data.  */
       std::swap (recog_data.operand[commutative],
 		 recog_data.operand[commutative + 1]);
+      if (curr_swapped)
+	break;
     }
 }