[llvm] [SCCP] Give SimplifyInst a chance in visitCmpInst (PR #226327)

[Nikita Popov via llvm-commits]

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nikic wrote:

This is incorrect, the lattice does have vector ranges. They're just not handled in `ValueLatticeElement::getCompare()`. More specifically, it does not handle comparison between constant ranges and constants.

https://github.com/llvm/llvm-project/pull/226327