diff --git a/gcc/combine.cc b/gcc/combine.cc
index 053879500b7..5453ce85156 100644
--- a/gcc/combine.cc
+++ b/gcc/combine.cc
@@ -13321,14 +13321,12 @@ record_dead_and_set_regs_1 (rtx dest, const_rtx setter, void *data)
 	       && SUBREG_REG (SET_DEST (setter)) == dest
 	       && known_le (GET_MODE_PRECISION (GET_MODE (dest)),
 			    BITS_PER_WORD)
-	       && subreg_lowpart_p (SET_DEST (setter)))
+	       && subreg_lowpart_p (SET_DEST (setter))
+	       && !(WORD_REGISTER_OPERATIONS
+		    && paradoxical_subreg_p (SET_DEST (setter))
+		    && contains_mem_rtx_p (SET_SRC (setter))))
 	record_value_for_reg (dest, record_dead_insn,
-			      WORD_REGISTER_OPERATIONS
-			      && word_register_operation_p (SET_SRC (setter))
-			      && paradoxical_subreg_p (SET_DEST (setter))
-			      ? SET_SRC (setter)
-			      : gen_lowpart (GET_MODE (dest),
-					     SET_SRC (setter)));
+			      gen_lowpart (GET_MODE (dest), SET_SRC (setter)));
       else
 	record_value_for_reg (dest, record_dead_insn, NULL_RTX);
     }