Not 100% sure but this precise optimization for LLVM is probably part of ScalarE... | Hacker News

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		Gankro on Oct 25, 2015 \| parent \| context \| favorite \| on: Do you know how much your computer can do in a sec... Not 100% sure but this precise optimization for LLVM is probably part of ScalarEvolution, which tries to figure out how values in a loop evolve: http://llvm.org/devmtg/2009-10/ScalarEvolutionAndLoopOptimiz... LLVM also has a pass dedicated to detecting loop idioms: http://llvm.org/docs/doxygen/html/LoopIdiomRecognize_8cpp_so... (I'm not at all familiar with how GCC is architected, sorry)

schoen on Oct 25, 2015 [–]

Cool, thanks for the references!

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