[PATCH] D33634: [ThinLTO] Reduce unnecessary map lookups during combined summary write

[Teresa Johnson via Phabricator via llvm-commits]

tejohnson marked an inline comment as done.
tejohnson added a comment.

In https://reviews.llvm.org/D33634#768361, @pcc wrote:

> Oh and please add a test case if possible.


Added a reference to an undefined global in an existing test, which will cause the checks on the combined summary to fail without this patch.


https://reviews.llvm.org/D33634