[llvm] [NVPTX] support packed f32 instructions for sm_100+ (PR #126337)

[Alex MacLean via llvm-commits]

AlexMaclean wrote:

I'll admit, I'm somewhat puzzled about what is going on here. The PTX looks essentially equivalent to me as well. I've passed this along internally but I'm not sure when I'll have a better understanding of what exactly the problem is in this case.  @Prince781 Perhaps you should consider reverting this change until whatever is going on here is addressed? 

https://github.com/llvm/llvm-project/pull/126337