From b6b240edae1d01a0d5746d940a201e635a449360 Mon Sep 17 00:00:00 2001
From: Paolo Carlini <paolo@gcc.gnu.org>
Date: Fri, 20 Oct 2017 00:30:41 +0000
Subject: [PATCH] re PR c++/82308 ([C++17] deduction of template arguments
 results in internal compiler error)

2017-10-19  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/82308
	* g++.dg/cpp1z/class-deduction45.C: New.

From-SVN: r253920
---
 gcc/testsuite/ChangeLog                       |  7 +++++-
 .../g++.dg/cpp1z/class-deduction45.C          | 24 +++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/g++.dg/cpp1z/class-deduction45.C

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 8ef91aadc87..4aab328fae3 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,4 +1,9 @@
-2017-10-18  Uros Bizjak  <ubizjak@gmail.com>
+2017-10-19  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/82308
+	* g++.dg/cpp1z/class-deduction45.C: New.
+
+2017-10-19  Uros Bizjak  <ubizjak@gmail.com>
 	    Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/82618
diff --git a/gcc/testsuite/g++.dg/cpp1z/class-deduction45.C b/gcc/testsuite/g++.dg/cpp1z/class-deduction45.C
new file mode 100644
index 00000000000..3fe8dd33b79
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1z/class-deduction45.C
@@ -0,0 +1,24 @@
+// PR c++/82308
+// { dg-options -std=c++17 }
+
+template<typename, unsigned>
+struct array {};
+
+template <unsigned R>
+class X {
+public:
+  using T = array<int, R>;
+
+  enum class C : char { A, B };
+  X(T bounds, C c = C::B) : t(bounds) {}
+
+private:
+  T t;
+};
+
+int main()
+{
+  array<int, 2> a;
+  X    d{a};
+  X<2> e{a};
+}
-- 
2.30.2