[PATCH] D21577: [LTO] Asm undefs should be included in llvm.compiler_used

[Davide Italiano via llvm-commits]

davide created this revision.
davide added reviewers: rafael, pcc.
davide added a subscriber: llvm-commits.
Herald added a subscriber: mehdi_amini.

This fixes PR28218. For further reference, and my analysis, please take a look at:
https://llvm.org/bugs/show_bug.cgi?id=28218

http://reviews.llvm.org/D21577

Files:
  ELF/LTO.cpp
  ELF/LTO.h
  test/ELF/lto/asmundef.ll

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