[PATCH] D114957: [AMDGPU] Change llvm.amdgcn.image.bvh.intersect.ray to take vec3 args

Thu Dec 2 06:55:23 PST 2021

arsenm added a comment.

In D114957#3166858 <https://reviews.llvm.org/D114957#3166858>, @yaxunl wrote:

> In D114957#3166817 <https://reviews.llvm.org/D114957#3166817>, @foad wrote:
>
>> This is a flag-day change to the signatures of the LLVM intrinsics and the OpenCL builtins. Is that OK?
>
> This breaks users' code. If we have to do this, at least let clang emit a pre-defined macro e.g. `__amdgcn_bvh_use_vec3__`=1 so that users can make their code work before and after the change.

I do not think it's worth introducing a macro for this. Are there actually C users of these builtins?

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  https://reviews.llvm.org/D114957/new/

https://reviews.llvm.org/D114957