From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Tue, 21 Dec 2010 22:59:31 +0000 (+0000)
Subject: Don't crash indexing into erroneous array.
X-Git-Tag: releases/gcc-4.6.0~1690
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=91ab22083add8122bdc79155ae1de0b5392f88ff;p=thirdparty%2Fgcc.git

Don't crash indexing into erroneous array.

From-SVN: r168142
---

diff --git a/gcc/go/gofrontend/expressions.cc b/gcc/go/gofrontend/expressions.cc
index 0745704741ad..5cd9e66c489a 100644
--- a/gcc/go/gofrontend/expressions.cc
+++ b/gcc/go/gofrontend/expressions.cc
@@ -9154,7 +9154,11 @@ Array_index_expression::do_get_tree(Translate_context* context)
   source_location loc = this->location();
 
   Array_type* array_type = this->array_->type()->array_type();
-  gcc_assert(array_type != NULL);
+  if (array_type == NULL)
+    {
+      gcc_assert(this->array_->type()->is_error_type());
+      return error_mark_node;
+    }
 
   tree type_tree = array_type->get_tree(gogo);
   if (type_tree == error_mark_node)