Sergey Dmitriev 233106269d [llvm-link] Improve link time for bitcode archives [NFC]
Linking large bitcode archives currently takes a lot of time with llvm-link,
this patch adds couple improvements which reduce link time for archives
- Use one Linker instance for archive instead of recreating it for each member
- Lazy load archive members

Reviewed By: tra, jdoerfert

Differential Revision: https://reviews.llvm.org/D94643
2021-01-19 16:41:28 -08:00
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