Rewrite handling of 64-bit palignr intrinsics to be vector shuffles.
Stop multiplying constant by 8 accordingly in the header and change
intrinsic definition for what types we expect.

Add to existing palignr test to check that we're emitting the correct things.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101332 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed