[llvm] [AggressiveInstCombine] Make cttz fold more resiliant to non-array geps (PR #150896)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

Can you please directly port this one to be type independent (using ConstantFoldLoadFromConst)? It looks like it shouldn't be hard.

https://github.com/llvm/llvm-project/pull/150896