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I'm part of a research group at MIT looking to create an extension of LLVM that inherently allows one to nicely code a parallel loop. Most parallel frameworks tend to take the body of a parallel loop and stick it inside of a function for the parallel runtime to call when appropriate. However, this makes optimizations significantly more difficult as most compiler optimizations tend to be

On 9 March 2015 at 17:30, Tobias Grosser <tgrosser at inf.ethz.ch> wrote: > If my memories are right, one of the critical issues (besides > other engineering considerations) was that parallelism metadata in LLVM is > optional and can always be dropped. However, for > OpenMP it sometimes is incorrect to execute a loop sequential that has been > marked parallel in the source