[Clang][X86] Converting X86 intrinisics movmsk{ps|pd}{|256} and pmovmskb{128|256}

[m_zuckerman]

Summary

With a continue to the work that was done on the LLVM side. This patch adds the clang side of the converting for the six intrinsic. In overall there are two functions. One for the floating point intrinsics family and the other to the integer. The function converts between float to integer types and then uses the second function as a regular call to an integer while the integer intrinsics family only calls the second function.

LLVM-SIDE https://reviews.llvm.org/D40462?id=124275

[guyblank]

lib/CodeGen/CGBuiltin.cpp

7507

Float->FloatOp ?

7509

can you use getIntNTy here?
and maybe name the variable: IntTy or something similar