diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 6c474fdda16..65a850fc53c 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2019-02-05  Alexandre Oliva <aoliva@redhat.com>
+
+	PR c++/87770
+	* pt.c (instantiates_primary_template_p): New.
+	(type_dependent_expression_p): Use it.
+
 2019-02-01  Jason Merrill  <jason@redhat.com>
 
 	PR c++/88761 - ICE with reference capture of constant.
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 9aa3c75d2d7..b8fbf4046f0 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -400,6 +400,36 @@ template_class_depth (tree type)
   return depth;
 }
 
+/* Return TRUE if NODE instantiates a template that has arguments of
+   its own, be it directly a primary template or indirectly through a
+   partial specializations.  */
+static bool
+instantiates_primary_template_p (tree node)
+{
+  tree tinfo = get_template_info (node);
+  if (!tinfo)
+    return false;
+
+  tree tmpl = TI_TEMPLATE (tinfo);
+  if (PRIMARY_TEMPLATE_P (tmpl))
+    return true;
+
+  if (!DECL_TEMPLATE_SPECIALIZATION (tmpl))
+    return false;
+
+  /* So now we know we have a specialization, but it could be a full
+     or a partial specialization.  To tell which, compare the depth of
+     its template arguments with those of its context.  */
+
+  tree ctxt = DECL_CONTEXT (tmpl);
+  tree ctinfo = get_template_info (ctxt);
+  if (!ctinfo)
+    return true;
+
+  return (TMPL_ARGS_DEPTH (TI_ARGS (tinfo))
+	  > TMPL_ARGS_DEPTH (TI_ARGS (ctinfo)));
+}
+
 /* Subroutine of maybe_begin_member_template_processing.
    Returns true if processing DECL needs us to push template parms.  */
 
@@ -25683,7 +25713,7 @@ type_dependent_expression_p (tree expression)
 	 that come from the template-id; the template arguments for the
 	 enclosing class do not make it type-dependent unless they are used in
 	 the type of the decl.  */
-      if (PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (expression))
+      if (instantiates_primary_template_p (expression)
 	  && (any_dependent_template_arguments_p
 	      (INNERMOST_TEMPLATE_ARGS (DECL_TI_ARGS (expression)))))
 	return true;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 14db6287ff5..8a77c005c3b 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-02-05  Alexandre Oliva <aoliva@redhat.com>
+
+	PR c++/87770
+	* g++.dg/pr87770.C: New.
+
 2019-02-04  Harald Anlauf  <anlauf@gmx.de>
 
 	PR fortran/89077
diff --git a/gcc/testsuite/g++.dg/pr87770.C b/gcc/testsuite/g++.dg/pr87770.C
new file mode 100644
index 00000000000..69eff4a786f
--- /dev/null
+++ b/gcc/testsuite/g++.dg/pr87770.C
@@ -0,0 +1,11 @@
+// { dg-do compile }
+
+template <typename> struct d {
+  template <typename e> d(e);
+};
+template <> template <typename e> d<int>::d(e);
+template <> template <typename e> d<int>::d(e) {
+  long g;
+  (void)g;
+}
+template d<int>::d(char);