From 52df8bd93305f5ccd6a78eeebef9eb85c2208fed Mon Sep 17 00:00:00 2001
From: Paolo Carlini <paolo@gcc.gnu.org>
Date: Thu, 29 Mar 2018 08:43:43 +0000
Subject: [PATCH] re PR c++/84606 (internal compiler error: Segmentation fault
 (enclosing_instantiation_of()))

2018-03-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84606
	* g++.dg/cpp0x/pr84606.C: New.

From-SVN: r258947
---
 gcc/testsuite/ChangeLog              |  7 ++++++-
 gcc/testsuite/g++.dg/cpp0x/pr84606.C | 10 ++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/g++.dg/cpp0x/pr84606.C

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index cb5c2c37733..c5ee0187599 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,4 +1,9 @@
-2018-03-20  Carl Love  <cel@us.ibm.com>
+2018-03-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/84606
+	* g++.dg/cpp0x/pr84606.C: New.
+
+2018-03-29  Carl Love  <cel@us.ibm.com>
 
 	Revert
 	2017-09-27  Carl Love  <cel@us.ibm.com>
diff --git a/gcc/testsuite/g++.dg/cpp0x/pr84606.C b/gcc/testsuite/g++.dg/cpp0x/pr84606.C
new file mode 100644
index 00000000000..60d4af5e70c
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/pr84606.C
@@ -0,0 +1,10 @@
+// { dg-do compile { target c++11 } }
+
+template<typename>
+struct s {
+  struct {
+    void __attribute__((common([] { struct d }))) g();  // { dg-error "expected|attribute" }
+  } f;
+};
+
+s<int> a {};
-- 
2.30.2