[PATCH] D21100: [Linker/Mover] Implement merging of PIC flags

[Davide Italiano via llvm-commits]

davide created this revision.
davide added a reviewer: rafael.
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We always pick the smallest. I think the ordering is Small < Default < Large, but I might have gotten that wrong, so .. comments welcome.
This fixes an LTO issue found while linking the FreeBSD base system.

http://reviews.llvm.org/D21100

Files:
  lib/IR/Module.cpp
  lib/Linker/IRMover.cpp
  test/Linker/Inputs/module-flags-pic-2-b.ll
  test/Linker/module-flags-pic-1-a.ll
  test/Linker/module-flags-pic-2-a.ll

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