Change _mm256_permute4x64_epi64 and _mm256_permute4x64_pd to use builtin_shufflevector instead of specific builtins. Old builtins will be removed from llvm now that vpermq/vpermpd are supported by shuffle lowering code.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154777 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed