[llvm] [LICM][SimplifyCFG] Ignore frees for writable dereferenceability check (PR #202589)

[Nikita Popov via llvm-commits]

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nikic wrote:

As it's not directly related, I pushed a separate fix for this in https://github.com/llvm/llvm-project/pull/202889.

https://github.com/llvm/llvm-project/pull/202589