Bootstrapped/regtested on x86_64-pc-linux-gnu, ok for trunk?

-- >8 --
This patch simplifies and renames type_linkage_name as per
<https://gcc.gnu.org/pipermail/gcc-patches/2026-January/706420.html>.

gcc/cp/ChangeLog:

        * reflect.cc (type_linkage_name): Rename to...
        (reflection_type_linkage_name): ...this.
        (eval_has_internal_linkage): Call reflection_type_linkage_name instead
        of type_linkage_name.
        (eval_has_module_linkage): Likewise.
        (eval_has_external_linkage): Likewise.
        (eval_has_c_language_linkage): Likewise.
        (eval_has_linkage): Likewise.

Co-authored-by: Jason Merrill <[email protected]>
---
 gcc/cp/reflect.cc | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

diff --git a/gcc/cp/reflect.cc b/gcc/cp/reflect.cc
index 0b0fc2769d8..c659e7ec559 100644
--- a/gcc/cp/reflect.cc
+++ b/gcc/cp/reflect.cc
@@ -1853,19 +1853,15 @@ eval_is_enumerator (const_tree r)
     return boolean_false_node;
 }
 
-/* Get the linkage name for T, or NULL_TREE, if N/A.  */
+/* Get the linkage name for T, or NULL_TREE for types with no name
+   or for typedefs.  */
 
 static tree
-type_linkage_name (tree t)
+reflection_type_linkage_name (tree t)
 {
-  if (TYPE_NAME (t) == NULL_TREE
-      || !DECL_P (TYPE_NAME (t))
-      || (!DECL_IMPLICIT_TYPEDEF_P (TYPE_NAME (t))
-         && TYPE_NAME (t) == TYPE_NAME (TYPE_MAIN_VARIANT (t))
-         && !TYPE_MAIN_DECL (t)))
-    return NULL_TREE;
-
-  return TYPE_NAME (t);
+  if (OVERLOAD_TYPE_P (t) && !typedef_variant_p (t))
+    return TYPE_NAME (t);
+  return NULL_TREE;
 }
 
 /* Process std::meta::has_internal_linkage.
@@ -1885,7 +1881,7 @@ eval_has_internal_linkage (tree r, reflect_kind kind)
   r = STRIP_TEMPLATE (r);
   if (TYPE_P (r))
     {
-      r = type_linkage_name (r);
+      r = reflection_type_linkage_name (r);
       if (!r)
        return boolean_false_node;
     }
@@ -1912,7 +1908,7 @@ eval_has_module_linkage (tree r, reflect_kind kind)
   r = STRIP_TEMPLATE (r);
   if (TYPE_P (r))
     {
-      r = type_linkage_name (r);
+      r = reflection_type_linkage_name (r);
       if (!r)
        return boolean_false_node;
     }
@@ -1942,7 +1938,7 @@ eval_has_external_linkage (tree r, reflect_kind kind)
   r = STRIP_TEMPLATE (r);
   if (TYPE_P (r))
     {
-      r = type_linkage_name (r);
+      r = reflection_type_linkage_name (r);
       if (!r)
        return boolean_false_node;
     }
@@ -1970,7 +1966,7 @@ eval_has_c_language_linkage (tree r, reflect_kind kind)
   r = STRIP_TEMPLATE (r);
   if (TYPE_P (r))
     {
-      r = type_linkage_name (r);
+      r = reflection_type_linkage_name (r);
       if (!r)
        return boolean_false_node;
     }
@@ -1997,7 +1993,7 @@ eval_has_linkage (tree r, reflect_kind kind)
   r = STRIP_TEMPLATE (r);
   if (TYPE_P (r))
     {
-      r = type_linkage_name (r);
+      r = reflection_type_linkage_name (r);
       if (!r)
        return boolean_false_node;
     }

base-commit: 81950116744bf385cd8eec7a0ba91428a4755dc7
-- 
2.52.0

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