From a2990dc13f2bfd9c752f64ee2e913315590df3fa Mon Sep 17 00:00:00 2001
From: ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 8 Aug 2014 17:40:51 +0000
Subject: [PATCH] 	* go-gcc.cc (Gcc_backend::compound_statement): Don't
 return 	NULL_TREE.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@213761 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/go/ChangeLog | 5 +++++
 gcc/go/go-gcc.cc | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/gcc/go/ChangeLog b/gcc/go/ChangeLog
index 069618d2ca8..f7c44c5f112 100644
--- a/gcc/go/ChangeLog
+++ b/gcc/go/ChangeLog
@@ -1,3 +1,8 @@
+2014-08-08  Ian Lance Taylor  <iant@google.com>
+
+	* go-gcc.cc (Gcc_backend::compound_statement): Don't return
+	NULL_TREE.
+
 2014-07-24  Uros Bizjak  <ubizjak@gmail.com>
 
 	* go-gcc.cc (Gcc_backend::global_variable_set_init): Rename
diff --git a/gcc/go/go-gcc.cc b/gcc/go/go-gcc.cc
index 97904d06d43..a34fad8bfd7 100644
--- a/gcc/go/go-gcc.cc
+++ b/gcc/go/go-gcc.cc
@@ -2123,6 +2123,12 @@ Gcc_backend::compound_statement(Bstatement* s1, Bstatement* s2)
   if (t == error_mark_node)
     return this->error_statement();
   append_to_statement_list(t, &stmt_list);
+
+  // If neither statement has any side effects, stmt_list can be NULL
+  // at this point.
+  if (stmt_list == NULL_TREE)
+    stmt_list = integer_zero_node;
+
   return this->make_statement(stmt_list);
 }
 
-- 
2.11.4.GIT