PR c++/60052
        * parser.c (cp_parser_parameter_declaration_list): Correctly reset
        implicit_template_scope upon leaving an out-of-line generic member
        function definition.

        PR c++/60052
        * g++.dg/cpp1y/pr60052.C: New testcase.
---
 gcc/cp/parser.c                      | 16 +++++++++++++---
 gcc/testsuite/g++.dg/cpp1y/pr60052.C | 15 +++++++++++++++
 2 files changed, 28 insertions(+), 3 deletions(-)
 create mode 100644 gcc/testsuite/g++.dg/cpp1y/pr60052.C

diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c
index 9818213..68573f1 100644
--- a/gcc/cp/parser.c
+++ b/gcc/cp/parser.c
@@ -18372,11 +18372,21 @@ cp_parser_parameter_declaration_list (cp_parser* 
parser, bool *is_error)
   parser->in_unbraced_linkage_specification_p
     = saved_in_unbraced_linkage_specification_p;
 
+  /* Reset implicit_template_scope if we are about to leave the function
+     parameter list that introduced it.  Note that for out-of-line member
+     definitions, there will be one or more class scopes before we get to
+     the template parameter scope.  */
+
   if (cp_binding_level *its = parser->implicit_template_scope)
-    if (current_binding_level->level_chain == its)
+    if (cp_binding_level *maybe_its = current_binding_level->level_chain)
       {
-       parser->implicit_template_parms = 0;
-       parser->implicit_template_scope = 0;
+       while (maybe_its->kind == sk_class)
+         maybe_its = maybe_its->level_chain;
+       if (maybe_its == its)
+         {
+           parser->implicit_template_parms = 0;
+           parser->implicit_template_scope = 0;
+         }
       }
 
   return parameters;
diff --git a/gcc/testsuite/g++.dg/cpp1y/pr60052.C 
b/gcc/testsuite/g++.dg/cpp1y/pr60052.C
new file mode 100644
index 0000000..191e5ac
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/pr60052.C
@@ -0,0 +1,15 @@
+// PR c++/60052
+// { dg-do compile }
+// { dg-options "-std=c++1y" }
+
+struct A
+{
+  void foo(auto);
+};
+
+void A::foo(auto) {}
+
+struct B
+{
+  void bar(auto);
+};
-- 
1.8.5.5

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