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81dfaefc4c
This is a python script which for a given seed generates a random sequence of random shuffles of a random vector width. It embeds this into a function and emits a main function which calls the test routine and checks that the results (where defined) match the obvious results. I'll be using this to drive out miscompiles from the new vector shuffle logic now that it is clean of any crashes I can find with llvm-stress. Note, my python skills are very poor. Sorry if this is terrible code, and feel free to tell me how I should write this or just patch it as necessary. The tests generated try to be very portable and use boring C routines. It technically will mis-declare the C routines and pass 32-bit integers to parametrs that expect 64-bit integers. If someone wants to fix this and has less terrible ideas of how to do it, I'm all ears. Fortunately, this "just works" for x86. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215054 91177308-0d34-0410-b5e6-96231b3b80d8
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