[llvm] [LTO][Pipelines][Coro] Handle coroutines in LTO pipeline (PR #126168)

[Teresa Johnson via llvm-commits]

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+; RUN: llvm-as %s -o %t1.bc
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teresajohnson wrote:

I'm not sure what you mean. We can't do any ThinLTO without a module summary. llvm-as does not create a summary. Only something like "opt --thinlto-bc"

https://github.com/llvm/llvm-project/pull/126168