1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/spec35.C b/gcc/testsuite/g++.dg/template/spec35.C
new file mode 100644
index 000000000..709ece5dd
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/spec35.C
@@ -0,0 +1,29 @@
+// PR c++/31923
+// C++ DR 605 -- "...the linkage of an explicit specialization must be that of
+// the template."
+
+// { dg-require-weak "" }
+// { dg-do compile { target i?86-*-* x86_64-*-* } }
+
+template<class T>
+static void f1 (T) { }
+
+// { dg-final { scan-assembler-not ".glob(a|)l\[\t \]*_?_Z2f1IfEvT_" } }
+template<>
+void f1<float> (float) { }  // Expected to have static linkage
+
+template<class T>
+void f2 (T) { }
+
+// { dg-final { scan-assembler ".glob(a|)l\[\t \]*_?_Z2f2IfEvT_" } }
+template<>
+void f2<float> (float) { }  // Expected to have global linkage
+
+void instantiator ()
+{
+  // { dg-final { scan-assembler-not ".glob(a|)l\[\t \]*_?_Z2f1IiEvT_" } }
+  f1(0);  // Expected to have static linkage
+
+  // { dg-final { scan-assembler ".weak(_definition)?\[\t \]*_?_Z2f2IiEvT_" { target { ! { *-*-mingw* *-*-cygwin } } } } }
+  f2(0);  // Expected to have weak global linkage
+}