[clang] [llvm] Vectorize: Support fminimumnum and fmaximumnum (PR #131781)

[Matt Arsenault via llvm-commits]

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+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5
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arsenm wrote:

You don't have a backend vectorization test. This PR contains no clang changes. You should delete the clang test and replace it with a backend IR test 

https://github.com/llvm/llvm-project/pull/131781