[llvm] [LV][EVL] Support in-loop reduction using tail folding with EVL. (PR #90184)

[Mel Chen via llvm-commits]

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@@ -0,0 +1,1495 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -passes=loop-vectorize \
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Mel-Chen wrote:

As I mentioned, if changing the title is possible, we can directly add out-loop reduction tests to this test case.

https://github.com/llvm/llvm-project/pull/90184