[Bug target/113270] [14 Regression] AArch64 ICEs in register_tuple_type since r14-6524

[rsandifo at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113270

--- Comment #6 from Richard Sandiford <rsandifo at gcc dot gnu.org> ---
I think we want the patch in comment 3, but in addition, I then also needed to
use the following for a similar SVE case:

extern GTY(()) tree scalar_types[NUM_VECTOR_TYPES + 1];
tree scalar_types[NUM_VECTOR_TYPES + 1];

In this case that would mean adding:

extern GTY(()) aarch64_simd_type_info aarch64_simd_types[];

just above the definition in aarch64-builtins.cc.