Index: lib/Support/Host.cpp
===================================================================
--- lib/Support/Host.cpp
+++ lib/Support/Host.cpp
@@ -823,6 +823,7 @@
   Features["avx512cd"] = HasLeaf7 && ((EBX >> 28) & 1) && HasAVX512Save;
   Features["avx512bw"] = HasLeaf7 && ((EBX >> 30) & 1) && HasAVX512Save;
   Features["avx512vl"] = HasLeaf7 && ((EBX >> 31) & 1) && HasAVX512Save;
+  Features["avx515vbmi"] = HasLeaf7 && ((ECX >> 1) & 1) && HasAVX512Save;
 
   bool HasLeafD = MaxLevel >= 0xd &&
     !GetX86CpuIDAndInfoEx(0xd, 0x1, &EAX, &EBX, &ECX, &EDX);
Index: lib/Target/X86/X86.td
===================================================================
--- lib/Target/X86/X86.td
+++ lib/Target/X86/X86.td
@@ -134,6 +134,9 @@
 def FeatureVLX     : SubtargetFeature<"avx512vl", "HasVLX", "true",
                       "Enable AVX-512 Vector Length eXtensions",
                                       [FeatureAVX512]>;
+def FeatureVBMI     : SubtargetFeature<"avx512vbmi", "HasVBMI", "true",
+		                   "Enable AVX-512 Vector Bit Manipulation Instructions",
+                                      [FeatureAVX512]>;
 def FeaturePKU   : SubtargetFeature<"pku", "HasPKU", "true",
                       "Enable protection keys">;
 def FeaturePCLMUL  : SubtargetFeature<"pclmul", "HasPCLMUL", "true",
@@ -508,6 +511,7 @@
   FeatureLZCNT,
   FeatureBMI,
   FeatureBMI2,
+  FeatureVBMI,
   FeatureFMA,
   FeatureRTM,
   FeatureHLE,
Index: lib/Target/X86/X86InstrInfo.td
===================================================================
--- lib/Target/X86/X86InstrInfo.td
+++ lib/Target/X86/X86InstrInfo.td
@@ -773,7 +773,7 @@
 def NoVLX        : Predicate<"!Subtarget->hasVLX()">;
 def NoVLX_Or_NoBWI : Predicate<"!Subtarget->hasVLX() || !Subtarget->hasBWI()">;
 def NoVLX_Or_NoDQI : Predicate<"!Subtarget->hasVLX() || !Subtarget->hasDQI()">;
-def PKU        : Predicate<"!Subtarget->hasPKU()">;
+def PKU        : Predicate<"Subtarget->hasPKU()">;
 
 def HasPOPCNT    : Predicate<"Subtarget->hasPOPCNT()">;
 def HasAES       : Predicate<"Subtarget->hasAES()">;
@@ -795,6 +795,7 @@
 def HasLZCNT     : Predicate<"Subtarget->hasLZCNT()">;
 def HasBMI       : Predicate<"Subtarget->hasBMI()">;
 def HasBMI2      : Predicate<"Subtarget->hasBMI2()">;
+def HasVBMI      : Predicate<"Subtarget->hasVBMI()">;
 def HasRTM       : Predicate<"Subtarget->hasRTM()">;
 def HasHLE       : Predicate<"Subtarget->hasHLE()">;
 def HasTSX       : Predicate<"Subtarget->hasRTM() || Subtarget->hasHLE()">;
Index: lib/Target/X86/X86Subtarget.h
===================================================================
--- lib/Target/X86/X86Subtarget.h
+++ lib/Target/X86/X86Subtarget.h
@@ -134,6 +134,9 @@
   /// Processor has BMI2 instructions.
   bool HasBMI2;
 
+  /// Processor has VBMI instructions.
+  bool HasVBMI;
+
   /// Processor has RTM instructions.
   bool HasRTM;
 
@@ -374,6 +377,7 @@
   bool hasLZCNT() const { return HasLZCNT; }
   bool hasBMI() const { return HasBMI; }
   bool hasBMI2() const { return HasBMI2; }
+  bool hasVBMI() const { return HasVBMI; }
   bool hasRTM() const { return HasRTM; }
   bool hasHLE() const { return HasHLE; }
   bool hasADX() const { return HasADX; }
Index: lib/Target/X86/X86Subtarget.cpp
===================================================================
--- lib/Target/X86/X86Subtarget.cpp
+++ lib/Target/X86/X86Subtarget.cpp
@@ -261,6 +261,7 @@
   HasLZCNT = false;
   HasBMI = false;
   HasBMI2 = false;
+  HasVBMI = false;
   HasRTM = false;
   HasHLE = false;
   HasERI = false;