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[ThinLTO] Fix bot failures by avoiding threaded map modifications
authorTeresa Johnson <tejohnson@google.com>
Tue, 24 May 2016 18:44:01 +0000 (18:44 +0000)
committerTeresa Johnson <tejohnson@google.com>
Tue, 24 May 2016 18:44:01 +0000 (18:44 +0000)
commit82332cd02ef0ae375797d96f4f2646c36d8979ed
tree66292e5aa1ea5b35b39aa25d7628dd5ef0cc9a7b
parentd7b9b912ddec8e58b132bd726b47613d2e3be9b1
[ThinLTO] Fix bot failures by avoiding threaded map modifications

Ensure multiple threads won't have to modify map, probable cause of
bot failures from r270584 such as:
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/13095

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270595 91177308-0d34-0410-b5e6-96231b3b80d8
lib/LTO/ThinLTOCodeGenerator.cpp