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358c1db65e
This blend instruction is ... really lame. The register usage is insane. As a consequence this is probably only *barely* better than 2 pshufbs followed by a por, and that mostly because it only has to read from a single memory location. However, this doesn't fix as much as I kind of expected, so more to go. Pretty sure that the ordering and delegation of v16i8 is just really, really bad. llvm-svn: 229373
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