[clang] [llvm] [libc][Github] Perform baremetal libc builds (PR #167583)

[Prabhu Rajasekaran via llvm-commits]

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@@ -0,0 +1,43 @@
+# Expects target triple to be passed as `ARCH_TRIPLE`
+message(STATUS "--- Discovered target triple: ${ARCH_TRIPLE} ---")
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Prabhuk wrote:

It wasn't meant to make it in. More for local debugging. Removed the message and added help text on how to use the cache file. PTAL.

https://github.com/llvm/llvm-project/pull/167583