Index: df-problems.c
===================================================================
--- df-problems.c	(revision 126918)
+++ df-problems.c	(working copy)
@@ -3989,7 +3989,7 @@ df_note_bb_compute (unsigned int bb_inde
 	      /* However a may or must clobber still needs to kill the
 		 reg so that REG_DEAD notes are later placed
 		 appropriately.  */ 
-	      else 
+	      else if (!(DF_REF_FLAGS (def) & (DF_REF_PARTIAL | DF_REF_CONDITIONAL)))
 		bitmap_clear_bit (live, DF_REF_REGNO (def));
 	    }
 	}