[AArch64] The shift right/left and insert immediate builtins expect 3
source operands, a vector, an element to insert, and a shift amount.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194407 91177308-0d34-0410-b5e6-96231b3b80d8
Darwin(ish): we don't want __ARM_EABI__ even on v7a embedded targets.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194408 91177308-0d34-0410-b5e6-96231b3b80d8