C++ : Why don't modern C++ compilers optimize away simple loops like this? (Clang, MSVC)

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C++ : Why don't modern C++ compilers optimize away simple loops like this? (Clang, MSVC)
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C++ : Why don't modern C++ compilers optimize away simple loops like this? (Clang, MSVC)
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C++ C++ Why MSVC) don't (Clang, simple compilers : away modern like loops optimize this?



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