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7e94e7eb7e
This lets select sub-targets enable this pass. The patch implements the idea from the recent llvm-dev thread: http://thread.gmane.org/gmane.comp.compilers.llvm.devel/94925 The goal is to enable the LoopDataPrefetch pass for the Cyclone sub-target only within Aarch64. Positive and negative tests will be included in an upcoming patch that enables selective prefetching of large-strided accesses on Cyclone. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262844 91177308-0d34-0410-b5e6-96231b3b80d8