https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89083
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Untested patch:
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -6166,6 +6166,8 @@ reshape_init_r (tree type, reshape_iter *d, bool
first_initializer_p,
before calling digest_init, so changing this code would still
not be necessary. */
gcc_assert (!BRACE_ENCLOSED_INITIALIZER_P (stripped_init));
+ else if (!BRACE_ENCLOSED_INITIALIZER_P (stripped_init))
+ /* We've already reshaped it. */;
else
{
++d->cur;