From fa31a3cdbf1571286671d8d3a83e31676862583e Mon Sep 17 00:00:00 2001
From: Patrick Palka <ppalka@redhat.com>
Date: Tue, 12 May 2020 12:20:55 -0400
Subject: [PATCH] c++: Add abbreviated fn template test for [PR78752]

This adds an abbreviated function template version of the testcase in
PR78752, which seems to already be fixed.

gcc/testsuite/ChangeLog:

	PR c++/78752
	* g++.dg/cpp2a/concepts-pr78752-2.C: New test.
---
 gcc/testsuite/ChangeLog                       |  5 +++++
 .../g++.dg/cpp2a/concepts-pr78752-2.C         | 21 +++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/cpp2a/concepts-pr78752-2.C

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 79572742409..ac5bead5030 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-05-12  Patrick Palka  <ppalka@redhat.com>
+
+	PR c++/78752
+	* g++.dg/cpp2a/concepts-pr78752-2.C: New test.
+
 2020-05-12  Uroš Bizjak  <ubizjak@gmail.com>
 
 	PR target/95046
diff --git a/gcc/testsuite/g++.dg/cpp2a/concepts-pr78752-2.C b/gcc/testsuite/g++.dg/cpp2a/concepts-pr78752-2.C
new file mode 100644
index 00000000000..6777054285d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp2a/concepts-pr78752-2.C
@@ -0,0 +1,21 @@
+// { dg-do compile { target c++2a } }
+// { dg-additional-options "-fconcepts-ts" }
+
+template <class T, class U>
+concept bool Same = __is_same(T, U);
+
+struct test {
+  void func(Same<int>... ints) {}
+};
+
+void func(Same<int>... ints) {}
+
+int main()
+{
+  test t;
+  t.func(1, 2, 3);
+  func(1, 2, 3);
+
+  t.func(1, 2, ""); // { dg-error "no match" }
+  func(1, 2, ""); // { dg-error "unsatisfied constraints" }
+}
-- 
2.30.2