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81d794ab6d
Remove FeatureSlowMisaligned128Store from cyclone flags. This flag causes splitting of 16 byte wide stores into 2 stored of 8 bytes. This was useful on older apple CPUs which were slow for 16byte stores that were not aligned on 16byte. As the compiler often cannot predict the actual alignment, the splitting was choosen. This has been a topic for a lot of debate as the splitting also decreases performance for some benchmarks. Measuring the effects on newer apple chips (rdar://35525421) shows that it harms more cases than it helps. So it is time to retire this workaround. llvm-svn: 323289
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