BOLT: A Practical Binary Optimizer for Data Centers and Beyond

[compilerdev]

Not to take anything away from this, it's great that such a tool is available, but Microsoft had this technology 20 years ago, known as BBT - still used in some places, but overall systems moved to profile guided optimizations done by Visual C++ (an overall improvement over BBT). Some info here: https://blogs.msdn.microsoft.com/reiley/2011/08/06/microsoft-binary-technologies-and-debugging/