[llvm] [LV] Fix MinBWs in WidenIntrinsic case (PR #137005)

[Florian Hahn via llvm-commits]

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@@ -0,0 +1,43 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt -passes=loop-vectorize -S %s | FileCheck %s
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fhahn wrote:

Does the crash also reproduce if we force vectorization? Would be good to check that the intrinsic is handled correctly by codegen as well, if possible?

https://github.com/llvm/llvm-project/pull/137005