From: Marek Polacek <polacek@redhat.com>
Date: Fri, 18 Jan 2019 16:42:57 +0000 (+0000)
Subject: re PR c++/86926 (ICE for a recursive generic lambda)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=89ce81fbe13dc554d489d9f00f92f85164b185d6;p=gcc.git

re PR c++/86926 (ICE for a recursive generic lambda)

	PR c++/86926
	* g++.dg/cpp1z/constexpr-lambda23.C: New test.

From-SVN: r268080
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 19f5b21aee9..28b74d507de 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-01-18  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/86926
+	* g++.dg/cpp1z/constexpr-lambda23.C: New test.
+
 2019-01-18  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR middle-end/88587
diff --git a/gcc/testsuite/g++.dg/cpp1z/constexpr-lambda23.C b/gcc/testsuite/g++.dg/cpp1z/constexpr-lambda23.C
new file mode 100644
index 00000000000..4ff866b5d94
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1z/constexpr-lambda23.C
@@ -0,0 +1,16 @@
+// PR c++/86926
+// { dg-do compile { target c++17 } }
+
+int
+main()
+{
+    constexpr auto f = [](auto self, auto n) {
+        if(n < 2)
+	  return n;
+        return self(self, n - 1) + self(self, n - 2);
+    };
+
+    constexpr auto fibonacci = [=](auto n) { return f(f, n); };
+
+    static_assert(fibonacci(7) == 13);
+}