[llvm] [MemCpyOpt] Continue merging memset with unrelated clobber (PR #89550)

[via llvm-commits]

XChy wrote:

> Yes, the compile-time impact here looks basically reasonable to me. My only concern would be that this may further exacerbate the pre-existing problem with quadratic run-time we have in this function by lengthening the scan it performs.

Do you think we should add a threshold as "dse-memoryssa-scanlimit" in DSE?

https://github.com/llvm/llvm-project/pull/89550