[llvm] [SCEV] Simplify `udiv` equality comparisons against 0 (PR #218084)

[Nikita Popov via llvm-commits]

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@@ -0,0 +1,233 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: -p --version 6
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nikic wrote:

These do not look like generated checks.

https://github.com/llvm/llvm-project/pull/218084