tree 2a23ead612821409cbe36545f455aae881955e45
parent fe777833e23260a10687cc0f0fbc53fab798b1a1
author Mark Seaborn <mseaborn@google.com> 1528744965 -0700
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1528746415 +0000

[perftest] Prevent Clang from optimizing away malloc()+free() calls in test

This is based on the DoNotOptimize() function from the gbenchmark library:
https://github.com/google/benchmark/blob/master/include/benchmark/benchmark.h

Change-Id: I2ea48580432b779c40f573fef86aea2c81a7750b