[Bug c++/70209] [5/6 Regression] ICE in strip_typedefs, at cp/tree.c:1377

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70209

--- Comment #7 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
So this seems to fix the ICE and passes dg.exp testsuite.

--- a/gcc/cp/tree.c
+++ b/gcc/cp/tree.c
@@ -1462,7 +1462,8 @@ strip_typedefs (tree t, bool *remove_attributes)
       if (typedef_variant_p (t))
    /* Explicitly get the underlying type, as TYPE_MAIN_VARIANT doesn't
       strip typedefs with attributes.  */
-   result = TYPE_MAIN_VARIANT (DECL_ORIGINAL_TYPE (TYPE_NAME (t)));
+   result = strip_typedefs (TYPE_MAIN_VARIANT
+                (DECL_ORIGINAL_TYPE (TYPE_NAME (t))));
       else
    result = TYPE_MAIN_VARIANT (t);
     }