[llvm] [DSE] Use alias analysis to identify no-op stores (PR #122610)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

Compile-time: http://llvm-compile-time-tracker.com/compare.php?from=bfe93aedcc7d393c2697e66d6569baffb701ba6f&to=d41dfc385f0a808507612043cf76924d721aa325&stat=instructions:u

https://github.com/llvm/llvm-project/pull/122610