[llvm] [LoopPredication] Fix division by zero in case of zero branch weights (PR #66506)

[Danila Malyutin via llvm-commits]

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@@ -1,12 +1,31 @@
-; XFAIL: *
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danilaml wrote:

I've seen it done before. Regarding assertions - without them the crash would be just division by zero. Otherwise, the buildbots would complain about XFAIL passing.

https://github.com/llvm/llvm-project/pull/66506