expr.c (expand_expr): Don't use simplify_binary_operation; check for zero operands explicitly.

        * expr.c (expand_expr) [PLUS]: Don't use simplify_binary_operation;
        check for zero operands explicitly.

From-SVN: r58623

1 files changed, 4 insertions, 3 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index 5a14d7e..b9c8fb0 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -7912,9 +7912,10 @@ expand_expr (exp, target, tmode, modifier)
 	{
 	  op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
 	  op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, 0);
-	  temp = simplify_binary_operation (PLUS, mode, op0, op1);
-	  if (temp)
-	    return temp;
+	  if (op0 == const0_rtx)
+	    return op1;
+	  if (op1 == const0_rtx)
+	    return op0;
 	  goto binop2;
 	}