[llvm] [InstCombine] Allow folds of shifts by constants for scalable vectors again (PR #132522)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> Can we generally accept scalable splats in m_ImmConstant? I doubt this is the only place with this problem.

I am afraid that it will cause new infinite loop bugs :(



https://github.com/llvm/llvm-project/pull/132522