[Bug c++/120136] internal compiler error: tree check: accessed elt 1 of 'tree_vec' with -1 elts in add_to_template_args, at cp/pt.cc:612

[ldalessandro at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120136

--- Comment #1 from Luke Dalessandro <ldalessandro at gmail dot com> ---
Created attachment 61342
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61342&action=edit
actual cvise output (also ICEs 13,14,15)

This was the test case that cvise actually returned. It's messier with more
actual names from the original code and has some wasted stuff, but I'm
including it because it also ICEs 13,14,15 as "internal compiler error: in
tsubst, at cp/pt.cc:16670."

The one I cleaned up and submitted as the original doesn't seem to ICE those
three.