aarch64 built-in SIMD types

[Tom Kacvinsky via Gcc]

Hi all,

I am trying to find where the aarch64 SIMD built in types are defined in
GCC.
For instance, __Int8x8_t.  I see some code in gcc/config/aarch64 for these,
but
then it goes deeper into internals of gcc that I don't quite follow.
Any help pointing to where I should look would be appreciated.

Thanks,

Tom