benchmark::MakeUnpredictable
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enhancement
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- C++
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Description
`folly::benchmark` includes [makeUnpredictable](https://github.com/facebook/folly/blob/e0b75e77cc224d3caffbb717342873c858e893fe/folly/Benchmark.h#L203) function to hide a compile-time constant value of a variable from optimizer. This is a very useful feature, and `google::benchmark` should provide something similar.
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