PR c++/58281 - Problem with explicitly instantiated constexpr template

PR c++/58281 - Problem with explicitly instantiated constexpr template
	functions

gcc/testsuite/ChangeLog:
2016-03-15  Martin Sebor  <msebor@redhat.com>

	PR c++/58281
	* g++.dg/cpp1y/constexpr-instantiate.C: Add new test.

From-SVN: r234246

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 06ec23e92626ab3775a44c2aa4bb25a82b084575..2e25991cc4dcfa4f5ab995e7d08e6c6e974d035c 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-03-15  Martin Sebor  <msebor@redhat.com>
+
+       PR c++/58281
+       * g++.dg/cpp1y/constexpr-instantiate.C: Add new test.
+
 2016-03-15  John David Anglin  <danglin@gcc.gnu.org>
 
        * gcc.c-torture/execute/pr68532.c: Add -fno-common option on

diff --git a/gcc/testsuite/g++.dg/cpp1y/constexpr-instantiate.C b/gcc/testsuite/g++.dg/cpp1y/constexpr-instantiate.C
new file mode 100644 (file)
index 0000000..73d0508
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/constexpr-instantiate.C
@@ -0,0 +1,20 @@
+// PR c++/58281 - Problem with explicitly instantiated constexpr template
+//     functions 
+// { dg-do compile { target c++11 } }
+// { do-additional-options "-fdump-tree-optimized" }
+
+
+template <typename T>
+constexpr bool f (T a)
+{
+  return a == 3;
+}
+
+extern template bool f<int>(int);
+
+bool g (int x) { return f (x); }
+
+template bool f<int>(int);
+
+// Verify that the defintions of both f() and g() are emitted.
+// { dg-final { scan-tree-dump "bool \[fg\](" "optimized" } }