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dde12814c7
Summary: Without this patch, LoopVectorizer in certain cases (see loop-vectorize.ll) produces code with complex control flow which hurts later optimizations. Since NVPTX doesn't have vector registers in LLVM's sense (NVPTXTTI::getRegisterBitWidth(true) == 32), we for now declare no vector registers to effectively disable loop vectorization. Reviewers: jholewinski Subscribers: jingyue, llvm-commits, jholewinski Differential Revision: http://reviews.llvm.org/D11089 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241884 91177308-0d34-0410-b5e6-96231b3b80d8