[PATCH] D19527: LTOCodeGenerator: add linkonce to llvm.used when in "MustPreserve" set

[Mehdi AMINI via llvm-commits]

joker.eph created this revision.
joker.eph added a reviewer: dexonsmith.
joker.eph added a subscriber: llvm-commits.
Herald added a subscriber: joker.eph.

If the linker requested to preserve a linkonce function, we should
honor this even if we drop all uses.

http://reviews.llvm.org/D19527

Files:
  lib/LTO/LTOCodeGenerator.cpp
  test/tools/lto/hide-linkonce-odr.ll

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