[clang] [llvm] [CGData][ThinLTO] Global Outlining with Two-CodeGen Rounds (PR #90933)

[Teresa Johnson via cfe-commits]

================
@@ -0,0 +1,94 @@
+; This test verifies whether we can outline a singleton instance (i.e., an instance that does not repeat)
----------------
teresajohnson wrote:

This test seems like mostly an overlap of the caching test, with the exception of the regular LTO module interactions. Can you better describe that here?

https://github.com/llvm/llvm-project/pull/90933