[PATCH] D114957: [AMDGPU] Change llvm.amdgcn.image.bvh.intersect.ray to take vec3 args
Brian Sumner via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Thu Dec 2 07:21:31 PST 2021
b-sumner added a comment.
In D114957#3166936 <https://reviews.llvm.org/D114957#3166936>, @foad wrote:
> 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 don't know anything about OpenCL macros. Is it good enough to put this in `AMDGPUTargetInfo::getTargetDefines`:
> if (Opts.OpenCL)
> Does it need tests, documentation, etc?
But how long would that be carried? And then deprecated?
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