[Bug tree-optimization/116074] [15 regression] ICE when building harfbuzz-9.0.0 on arm64 (related_int_vector_mode, at stor-layout.cc:581)

[sjames at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116074

--- Comment #3 from Sam James <sjames at gcc dot gnu.org> ---
Created attachment 58753
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58753&action=edit
partial.ii.xz

Reduction is slowgoing. Attached a partial one while it carries on. I've not
tried to isolate it manually.