[X86] Adding vpopcntd and vpopcntq instructions

AVX512_VPOPCNTDQ is a new feature set that was published by Intel.
The patch represents the LLVM side of the addition of two new intrinsic based instructions (vpopcntd and vpopcntq).

Differential Revision: https://reviews.llvm.org/D33169

llvm-svn: 303858
diff --git a/llvm/lib/Target/X86/X86Subtarget.cpp b/llvm/lib/Target/X86/X86Subtarget.cpp
index 2b1f43b..84ec984 100644
--- a/llvm/lib/Target/X86/X86Subtarget.cpp
+++ b/llvm/lib/Target/X86/X86Subtarget.cpp
@@ -286,6 +286,7 @@
   HasCDI = false;
   HasPFI = false;
   HasDQI = false;
+  HasVPOPCNTDQ = false;
   HasBWI = false;
   HasVLX = false;
   HasADX = false;