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Just to add 2 comments to this discussion: -- Hans Boehm had an excellent paper in PLDI a few years arguing why "threads cannot be a library." (Google for that phrase.) This is a fundamental problem with compiler optimizations for code that uses libraries like pthreads. This argues in favor of having explicit support in the IR. -- On the other hand, explicitly parallel

Hi Anthony, 2009/3/30 Anthony Danalis <adanalis at eecs.utk.edu> > Is the user expected to add the calls to spawn/join or the compiler? If > it's the compiler adding them, then you don't need to change the front-end > at all, you can do all that in an optimization pass. If it's the user > adding them, then adding calls to "__spawn()" that the compiler