1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/expr.c b/gcc/expr.c
index e99eabe..6b56383 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -9381,7 +9381,15 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
 	{
 	  if (GET_CODE (op0) == SUBREG)
 	    op0 = force_reg (GET_MODE (op0), op0);
-	  op0 = gen_lowpart (mode, op0);
+	  temp = gen_lowpart_common (mode, op0);
+	  if (temp)
+	    op0 = temp;
+	  else
+	    {
+	      if (!REG_P (op0) && !MEM_P (op0))
+		op0 = force_reg (GET_MODE (op0), op0);
+	      op0 = gen_lowpart (mode, op0);
+	    }
 	}
       /* If both types are integral, convert from one mode to the other.  */
       else if (INTEGRAL_TYPE_P (type) && INTEGRAL_TYPE_P (TREE_TYPE (treeop0)))