[gcc r12-1270] c++: alias member template [PR100102]

[gcc r12-1270] c++: alias member template [PR100102]

[Jason Merrill]

https://gcc.gnu.org/g:a1b3484a8e6c53c8084723e3f1738d402374198e

commit r12-1270-ga1b3484a8e6c53c8084723e3f1738d402374198e
Author: Jason Merrill <jason@redhat.com>
Date:   Mon May 31 12:56:34 2021 -0400

    c++: alias member template [PR100102]
    
    Patrick already fixed the primary cause of this bug.  But while I was
    looking at this testcase I noticed that with the qualified name k::o we
    ended up with a plain FUNCTION_DECL, whereas without the k:: we got a
    BASELINK.  There seems to be no good reason not to return the BASELINK
    in this case as well.
    
            PR c++/100102
    
    gcc/cp/ChangeLog:
    
            * init.c (build_offset_ref): Return the BASELINK for a static
            member function.
    
    gcc/testsuite/ChangeLog:
    
            * g++.dg/cpp0x/alias-decl-73.C: New test.

Diff:
---
 gcc/cp/init.c                              | 2 +-
 gcc/testsuite/g++.dg/cpp0x/alias-decl-73.C | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/gcc/cp/init.c b/gcc/cp/init.c
index b1123287300..1b161d526f6 100644
--- a/gcc/cp/init.c
+++ b/gcc/cp/init.c
@@ -2214,7 +2214,7 @@ build_offset_ref (tree type, tree member, bool address_p,
 	  if (!ok)
 	    return error_mark_node;
 	  if (DECL_STATIC_FUNCTION_P (t))
-	    return t;
+	    return member;
 	  member = t;
 	}
       else
diff --git a/gcc/testsuite/g++.dg/cpp0x/alias-decl-73.C b/gcc/testsuite/g++.dg/cpp0x/alias-decl-73.C
new file mode 100644
index 00000000000..aae778646dc
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/alias-decl-73.C
@@ -0,0 +1,9 @@
+// PR c++/100102
+// { dg-do compile { target c++11 } }
+
+template <bool B1> using a = int;
+template <class T3, class T4> struct k {
+  static long o();
+  template <class T5> using n = a<bool(k::o)>;
+  n<int> q;
+};