[llvm] [llvm] Add benchmarks for Mustache (PR #160164)

[Paul Kirth via llvm-commits]

ilovepi wrote:

* **#160166** <a href="https://app.graphite.dev/github/pr/llvm/llvm-project/160166?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a>
* **#160165** <a href="https://app.graphite.dev/github/pr/llvm/llvm-project/160165?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a>
* **#160164** <a href="https://app.graphite.dev/github/pr/llvm/llvm-project/160164?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.dev/github/pr/llvm/llvm-project/160164?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/160164