[llvm] [VPlan][LV] Fix invalid truncation in VPScalarIVStepsRecipe (PR #137832)

[Florian Hahn via llvm-commits]

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@@ -0,0 +1,31 @@
+; RUN: opt -passes=loop-vectorize -disable-output -S < %s
+; REQUIRES: asserts
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fhahn wrote:

Please update the test to check the output as @lukel97 suggested, we should check we get the expected result. You then can also remove `REQUIRES: asserts`

https://github.com/llvm/llvm-project/pull/137832