[Bug other/92366] new test case gcc.dg/vect/bb-slp-41.c fails with its introduction in r277784

[joel.hutton at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92366

--- Comment #2 from Joel Hutton <joel.hutton at arm dot com> ---
I'm looking into this. The testcase triggered a case with a constructor with a
large number of elements (at least on aarch64).