Piotr Padlewski 31fd99cf65 [Devirtualization] insert placement new barrier with -O0 ...

Summary:
To not break LTO with different optimizations levels, we should insert
the barrier regardles of optimization level.

Reviewers: rjmccall, rsmith, mehdi_amini

Reviewed By: mehdi_amini

Subscribers: mehdi_amini, cfe-commits

Differential Revision: https://reviews.llvm.org/D32401

llvm-svn: 303488

2017-05-20 08:56:18 +00:00

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