Hi Kyrylo, On Tue, Feb 25, 2025 at 4:01 AM Kyrylo Tkachov <ktkac...@nvidia.com> wrote:
> On 24 Feb 2025, at 20:40, Tom Kacvinsky via Gcc <gcc@gcc.gnu.org> wrote: > > > > 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. > > > > The logic for defining them is in aarch64-builtins.cc . The information > about them is tracked in aarch64_simd_type_info structs. > There’s some preprocessor machinery at work so it may not be obvious how > it works from a first read. > There are user-level typedefs in arm_private_neon_types.h that is later > included standard ACLE headers like arm_neon.h and arm_sve.h > What particular information are you looking for? > I have been playing around with a front end that doesn't have these types defined so I was looking to see how they were defined by GCC so I could add them with something similar to GCC's -include option. Tom
