[AArch64 NEON]Fix a assertion failure when disassemble SHLL instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195936 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing pattern for supporting intrinsic function vbsl_f64 with
argument double floating point.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195938 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing test case for bsl_f64 support of AArch64 NEON.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195939 91177308-0d34-0410-b5e6-96231b3b80d8