[llvm] [NVPTX] Remove Float register classes (PR #140487)

[Artem Belevich via llvm-commits]

Artem-B wrote:

Most of the work on eliminating local storage falls on LLVM. In most of the kernels that still use local memory, ptxas usually can't do much about it either. This particular kernel happened to be the rare occasion where ptxas was previously able to remove a small 8-byte chunk of local data that LLVM kept around. AFAICT, such cases are pretty rare. So far I've see only one TU with a few kernels, and was able to work around it on the source level (helped LLVM to get rid of the alloca).


https://github.com/llvm/llvm-project/pull/140487