From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Thu, 16 Dec 2010 01:47:10 +0000 (+0000)
Subject: Don't crash when copying a call with no arguments.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7892de0c05ab87cf59da5b105b5470e6c6b0ef4f;p=gcc.git

Don't crash when copying a call with no arguments.

From-SVN: r167897
---

diff --git a/gcc/go/gofrontend/expressions.h b/gcc/go/gofrontend/expressions.h
index 53cca06d42e..5d7d90bdb01 100644
--- a/gcc/go/gofrontend/expressions.h
+++ b/gcc/go/gofrontend/expressions.h
@@ -1235,7 +1235,10 @@ class Call_expression : public Expression
   Expression*
   do_copy()
   {
-    return Expression::make_call(this->fn_->copy(), this->args_->copy(),
+    return Expression::make_call(this->fn_->copy(),
+				 (this->args_ == NULL
+				  ? NULL
+				  : this->args_->copy()),
 				 this->is_varargs_, this->location());
   }