commit e155fbdcdc2c7f5dca894375a2750b696e16ee6c
author Vedant Kumar <vsk@apple.com> Fri Jun 23 23:15:24 2017 +0000
committer Vedant Kumar <vsk@apple.com> Fri Jun 23 16:17:41 2017 -0700
tree 51f6147cd41faec0eff92a8fc21d8ea429b36d53
parent c497503f98fa155306447ebdcfb651bd0eaf40fc

[ubsan] Disable the object size check at -O0

This check currently isn't able to diagnose any issues at -O0, not is it
likely to [1]. Disabling the check at -O0 leads to substantial compile
time and binary size savings.

[1] [cfe-dev] Disabling ubsan's object size check at -O0

Differential Revision: https://reviews.llvm.org/D34563

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@306181 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit 6090a3754a1c9c810da526dfa3888decfd4bfb44)