From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Tue, 21 Dec 2010 22:56:39 +0000 (+0000)
Subject: Don't crash when copying a function with no closure variable.
X-Git-Tag: releases/gcc-4.6.0~1692
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=74d272a2e75d1724d853151427f07a3ca534a496;p=thirdparty%2Fgcc.git

Don't crash when copying a function with no closure variable.

From-SVN: r168140
---

diff --git a/gcc/go/gofrontend/expressions.h b/gcc/go/gofrontend/expressions.h
index 5d7d90bdb016..4780a8b834f9 100644
--- a/gcc/go/gofrontend/expressions.h
+++ b/gcc/go/gofrontend/expressions.h
@@ -1346,7 +1346,9 @@ class Func_expression : public Expression
   do_copy()
   {
     return Expression::make_func_reference(this->function_,
-					   this->closure_->copy(),
+					   (this->closure_ == NULL
+					    ? NULL
+					    : this->closure_->copy()),
 					   this->location());
   }