[llvm] [VPlan] Add simple driver option to run some individual transforms. (PR #178522)

[Ramkumar Ramachandra via llvm-commits]

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@@ -0,0 +1,40 @@
+; REQUIRES: asserts
+
+; Test the remove-dead-recipes VPlan transform that removes unused recipes.
+
+; RUN: opt -passes=loop-vectorize -vplan-test-transform='widen-from-metadata,remove-dead-recipes,print' -disable-output %s 2>&1 | FileCheck %s
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artagnon wrote:

Nit: would be good to put the RUN line first, followed by the REQUIRES line, followed by the comment after a newline?

https://github.com/llvm/llvm-project/pull/178522