[PATCH] D78804: [LICM] Precompute memory writers for AST aliasing analysis

[Max Kazantsev via Phabricator via llvm-commits]

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> One general comment: could this use case be added only when using AST (the creation of the set, updating it, etc)?

Good catch, will do!

> The usecase for this improvement sounds very interesting. Could you provide more details about it and how using MemorySSA compares to the AST in this case?

I'm planning to check; in the past there were some functional problems with MSSA in our environment but by now they could have been fixed. I'll post you up to date when I have the results!


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