[llvm] TargetLibraryInfo: Split off VectorLibrary enum and flag (PR #166980)

[Matt Arsenault via llvm-commits]

arsenm wrote:

* **#166988** <a href="https://app.graphite.com/github/pr/llvm/llvm-project/166988?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a>
* **#166987** <a href="https://app.graphite.com/github/pr/llvm/llvm-project/166987?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a>
* **#166986** <a href="https://app.graphite.com/github/pr/llvm/llvm-project/166986?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a>
* **#166985** <a href="https://app.graphite.com/github/pr/llvm/llvm-project/166985?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a>
* **#166984** <a href="https://app.graphite.com/github/pr/llvm/llvm-project/166984?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a>
* **#166983** <a href="https://app.graphite.com/github/pr/llvm/llvm-project/166983?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a>
* **#166982** <a href="https://app.graphite.com/github/pr/llvm/llvm-project/166982?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a>
* **#166981** <a href="https://app.graphite.com/github/pr/llvm/llvm-project/166981?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a>
* **#166980** <a href="https://app.graphite.com/github/pr/llvm/llvm-project/166980?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a> 👈 <a href="https://app.graphite.com/github/pr/llvm/llvm-project/166980?utm_source=stack-comment-view-in-graphite" target="_blank">(View in Graphite)</a>
* `main`


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https://github.com/llvm/llvm-project/pull/166980