[llvm] [NVPTX] Do not run the NVVMReflect pass as part of the normal pipeline (PR #121834)

[Johannes Doerfert via llvm-commits]

jdoerfert wrote:

> > ignore it if there's no SM passed.
> 
> Reflect can be used with other parameters, so SM-only check alone is, generally speaking, not sufficient as an on/off switch.

Can we make the pass at first only specialize what is known to be known, and later do the rest?


https://github.com/llvm/llvm-project/pull/121834