The problem is that expecting code to just be randomly faster by compiling it with ICC is a pointless endeavor.<p>For numerical code, ICC is amazing. But that&#x27;s mainly because the automatic vectorization is far beyond anything clang can spit out (which is already better than gcc at automatic vectorization).<p>Even then, icc really benefits when you use its proprietary pragmas for hints.<p>The VTUNE profiler is amazing though