[llvm] [MemCpyOpt] Forward `memcpy` based on the actual copy memory location. (PR #87190)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> (It seems there's no relevant matching pattern in the C++ test cases.)

Can you run rust performance benchmark like https://github.com/rust-lang/rust/pull/127347?


https://github.com/llvm/llvm-project/pull/87190