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Coverage mapping data may reference names of functions that are skipped by FE (e.g, unused inline functions). Since those functions are skipped, normal instr-prof function lowering pass won't put those names in the right section, so special handling is needed to walk through coverage mapping structure and recollect the references. With this patch, only names that are skipped are processed. This simplifies the lowering code and it no longer needs to make assumptions coverage mapping data layout. It should also be more efficient. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257091 91177308-0d34-0410-b5e6-96231b3b80d8
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