[PATCH] D28277: [ThinLTO] Rework llvm-link to use the FunctionImporter

[Teresa Johnson via Phabricator via llvm-commits]

tejohnson created this revision.
tejohnson added a reviewer: mehdi_amini.
tejohnson added a subscriber: llvm-commits.
Herald added subscribers: aprantl, mgorny.

Change llvm-link to use the FunctionImporter handling, instead of
manually invoking the Linker. We still need to load the module
in llvm-link to do the desired testing for invalid import requests
(weak functions), and to get the GUID (in case the function is local).

Also change the drop-debug-info test to use llvm-link so that importing
is forced (in order to test debug info handling) and independent of
import logic changes.


https://reviews.llvm.org/D28277

Files:
  test/ThinLTO/X86/drop-debug-info.ll
  tools/llvm-link/CMakeLists.txt
  tools/llvm-link/LLVMBuild.txt
  tools/llvm-link/llvm-link.cpp

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