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12e69a0267
the new shuffle lowering and an implementation for v4 shuffles. This allows us to handle non-half-crossing shuffles directly for v4 shuffles, both integer and floating point. This currently misses places where we could perform the blend via UNPCK instructions, but otherwise generates equally good or better code for the test cases included to the existing vector shuffle lowering. There are a few cases that are entertainingly better. ;] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215702 91177308-0d34-0410-b5e6-96231b3b80d8