> c++ don't support the required leeway of optimization transformations What transformations do you think C++ doesn't support? I've got a _lot_ of experience

> c++ don't support the required leeway of optimization transformations What transformations do you think C++ doesn't support? I've got a _lot_ of experience in C++ and I've found that it's almost always the case that whatever library being used needs to be rewritten for a small change. Rewriting libraries is rarely approved. And further, there's often very little unit testing being done towards that end too.