aaron.ballman accepted this revision.
aaron.ballman added a comment.
This revision is now accepted and ready to land.

LGTM! I agree that test coverage for the performance issue is basically 
impossible with our testing system. I was thinking "well good, add a test with 
a huge initializer to make sure it doesn't crash" but then I realized that will 
slow down running the tests significantly and will always be susceptible to a 
slightly larger array than the test uses being a problem. So I think it's fine 
to land this without tests.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D130791/new/

https://reviews.llvm.org/D130791

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