Hal Finkel 4a7be23976 [PowerPC] Enable interleaved-access vectorization ...

This adds a basic cost model for interleaved-access vectorization (and a better
default for shuffles), and enables interleaved-access vectorization by default.
The relevant difference from the default cost model for interleaved-access
vectorization, is that on PPC, the shuffles that end up being used are *much*
cheaper than modeling the process with insert/extract pairs (which are
quite expensive, especially on older cores).

llvm-svn: 246824

2015-09-04 00:10:41 +00:00

14 KiB

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