Hi!
If at least one attribute is errorneous, we get error_mark_node instead
of the attributes list.
The following patch fixes error recovery for that. Bootstrapped/regtested
on x86_64-linux and i686-linux, ok for trunk?
2018-04-03 Jakub Jelinek <ja...@redhat.com>
PR c++/85140
* name-lookup.c (handle_namespace_attrs): Return early if attributes
is error_mark_node.
* g++.dg/cpp0x/gen-attrs-64.C: New test.
--- gcc/cp/name-lookup.c.jj 2018-03-30 20:37:36.219184285 +0200
+++ gcc/cp/name-lookup.c 2018-04-03 10:15:22.670803588 +0200
@@ -5044,6 +5044,9 @@ handle_namespace_attrs (tree ns, tree at
tree d;
bool saw_vis = false;
+ if (attributes == error_mark_node)
+ return false;
+
for (d = attributes; d; d = TREE_CHAIN (d))
{
tree name = get_attribute_name (d);
--- gcc/testsuite/g++.dg/cpp0x/gen-attrs-64.C.jj 2018-04-03
10:18:55.196780292 +0200
+++ gcc/testsuite/g++.dg/cpp0x/gen-attrs-64.C 2018-04-03 10:17:57.064786662
+0200
@@ -0,0 +1,4 @@
+// PR c++/85140
+// { dg-do compile { target c++11 } }
+
+namespace N alignas() {} // { dg-error "expected" }
Jakub
