Improve handling of LLVM function attributes #49597
Merged
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Improves #49551: Instead of copying attributes manually, just ensure we always call
CloneFunctionInto
, as it does useful work for declarations too (bailing out early, https://github.com/llvm/llvm-project/blob/33017e5a3fa2c3194522565cd0e106a931b072b3/llvm/lib/Transforms/Utils/CloneFunction.cpp#L144-L147). This includes mapping of the personality function, https://github.com/llvm/llvm-project/blob/33017e5a3fa2c3194522565cd0e106a931b072b3/llvm/lib/Transforms/Utils/CloneFunction.cpp#L111-L115, so we can get rid of that too.x-ref #49551 (comment)