[lld] [llvm] [LLVM] Refactor Autoupgrade function attributes from Module attributes. (PR #84494)

[Fangrui Song via llvm-commits]

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@@ -0,0 +1,51 @@
+; REQUIRES: aarch64
+;; Test verifies inlining happens cross module when module flags are upgraded
+;; by the thin-lto linker/IRMover.
+;; Regression test for #82763
+
+; RUN: split-file %s %t
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MaskRay wrote:

This seems unneeded. You can add ThinLTO tests to llvm/test/ThinLTO

https://github.com/llvm/llvm-project/pull/84494