[clang] [llvm] [Clang][AMDGPU] Expose buffer load lds as a clang builtin (PR #132048)

[Shilei Tian via llvm-commits]

Juan Manuel Martinez =?utf-8?q?Caamaño?= <juamarti at amd.com>,
Juan Manuel Martinez =?utf-8?q?Caamaño?= <juamarti at amd.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/132048 at github.com>


shiltian wrote:

> I've also seen that gfx11 seem to have some kind of BUFFER_LOAD_LDS_(SIZE) instruction (different from the BUFFER_LOAD_(SIZE)_LDS instructions associated with this builtin).
> 
> However, I'm not sure they actually exists: we do not have any test where we generate them and the gfx11 shader manual explicitly says _"Remove "LOAD_LDS" instructions: buffer_load_lds, scratch_load_lds, global_load_lds"_

Sounds like we need to get information from HW folks. :-)

https://github.com/llvm/llvm-project/pull/132048