[AVX512] adding AVXVBMI feature flag

[delena]

lib/Support/Host.cpp

826

please take lower case avx512vbmi

lib/Target/X86/X86.td

135

The string is copied from the prev case.

lib/Target/X86/X86InstrInfo.td

798

remove !

[delena]

LGTM

lib/Support/Host.cpp

bool sys::getHostCPUFeatures(StringMap<bool> &Features) {
   // AVX512 is only supported if the OS supports the context save for it.
   Features["avx512f"]  = HasLeaf7 && ((EBX >> 16) & 1) && HasAVX512Save;
   Features["avx512dq"] = HasLeaf7 && ((EBX >> 17) & 1) && HasAVX512Save;
   Features["avx512pf"] = HasLeaf7 && ((EBX >> 26) & 1) && HasAVX512Save;
   Features["avx512er"] = HasLeaf7 && ((EBX >> 27) & 1) && HasAVX512Save;
   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);
 
   // Only enable XSAVE if OS has enabled support for saving YMM state.
   Features["xsaveopt"] = HasAVXSave && HasLeafD && ((EAX >> 0) & 1);
   Features["xsavec"]   = HasAVXSave && HasLeafD && ((EAX >> 1) & 1);
   Features["xsaves"]   = HasAVXSave && HasLeafD && ((EAX >> 3) & 1);

lib/Target/X86/X86.td

def FeaturePFI      : SubtargetFeature<"avx512pf", "HasPFI", "true",
                                       [FeatureAVX512]>;
 def FeatureDQI     : SubtargetFeature<"avx512dq", "HasDQI", "true",
                       "Enable AVX-512 Doubleword and Quadword Instructions",
                                       [FeatureAVX512]>;
 def FeatureBWI     : SubtargetFeature<"avx512bw", "HasBWI", "true",
                       "Enable AVX-512 Byte and Word Instructions",
                                       [FeatureAVX512]>;
 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",
                          "Enable packed carry-less multiplication instructions",
                                [FeatureSSE2]>;
 def FeatureFMA     : SubtargetFeature<"fma", "HasFMA", "true",
                                       "Enable three-operand fused multiple-add",
                                       [FeatureAVX]>;
class SkylakeProc<string Name> : ProcessorModel<Name, HaswellModel, [
   FeatureXSAVEOPT,
   FeatureRDRAND,
   FeatureF16C,
   FeatureFSGSBase,
   FeatureMOVBE,
   FeatureLZCNT,
   FeatureBMI,
   FeatureBMI2,
+  FeatureVBMI,
   FeatureFMA,
   FeatureRTM,
   FeatureHLE,
   FeatureADX,
   FeatureRDSEED,
   FeatureSlowIncDec,
   FeatureMPX,
   FeatureXSAVEC,

lib/Target/X86/X86InstrInfo.td

 def HasBWI       : Predicate<"Subtarget->hasBWI()">,
                      AssemblerPredicate<"FeatureBWI", "AVX-512 BW ISA">;
 def NoBWI        : Predicate<"!Subtarget->hasBWI()">;
 def HasVLX       : Predicate<"Subtarget->hasVLX()">,
                      AssemblerPredicate<"FeatureVLX", "AVX-512 VL ISA">;
 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()">;
 def HasFXSR      : Predicate<"Subtarget->hasFXSR()">;
 def HasXSAVE     : Predicate<"Subtarget->hasXSAVE()">;
 def HasXSAVEOPT  : Predicate<"Subtarget->hasXSAVEOPT()">;
 def HasXSAVEC    : Predicate<"Subtarget->hasXSAVEC()">;
 def HasXSAVES    : Predicate<"Subtarget->hasXSAVES()">;
 def HasPCLMUL    : Predicate<"Subtarget->hasPCLMUL()">;
 def HasFMA       : Predicate<"Subtarget->hasFMA()">;
 def UseFMAOnAVX  : Predicate<"Subtarget->hasFMA() && !Subtarget->hasAVX512()">;
 def HasFMA4      : Predicate<"Subtarget->hasFMA4()">;
 def HasXOP       : Predicate<"Subtarget->hasXOP()">;
 def HasTBM       : Predicate<"Subtarget->hasTBM()">;
 def HasMOVBE     : Predicate<"Subtarget->hasMOVBE()">;
 def HasRDRAND    : Predicate<"Subtarget->hasRDRAND()">;
 def HasF16C      : Predicate<"Subtarget->hasF16C()">;
 def HasFSGSBase  : Predicate<"Subtarget->hasFSGSBase()">;
 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()">;
 def HasADX       : Predicate<"Subtarget->hasADX()">;
 def HasSHA       : Predicate<"Subtarget->hasSHA()">;
 def HasPRFCHW    : Predicate<"Subtarget->hasPRFCHW()">;
 def HasRDSEED    : Predicate<"Subtarget->hasRDSEED()">;
 def HasPrefetchW : Predicate<"Subtarget->hasPRFCHW()">;

lib/Target/X86/X86Subtarget.h

protected:
   bool HasLZCNT;
 
   /// Processor has BMI1 instructions.
   bool HasBMI;
 
   /// Processor has BMI2 instructions.
   bool HasBMI2;
 
+  /// Processor has VBMI instructions.
+  bool HasVBMI;
+
   /// Processor has RTM instructions.
   bool HasRTM;
 
   /// Processor has HLE.
   bool HasHLE;
 
   /// Processor has ADX instructions.
   bool HasADX;
public:
   bool hasTBM() const { return HasTBM; }
   bool hasMOVBE() const { return HasMOVBE; }
   bool hasRDRAND() const { return HasRDRAND; }
   bool hasF16C() const { return HasF16C; }
   bool hasFSGSBase() const { return HasFSGSBase; }
   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; }
   bool hasSHA() const { return HasSHA; }
   bool hasPRFCHW() const { return HasPRFCHW; }
   bool hasRDSEED() const { return HasRDSEED; }
   bool hasLAHFSAHF() const { return HasLAHFSAHF; }
   bool isBTMemSlow() const { return IsBTMemSlow; }

lib/Target/X86/X86Subtarget.cpp

void X86Subtarget::initializeEnvironment() {
   HasTBM = false;
   HasMOVBE = false;
   HasRDRAND = false;
   HasF16C = false;
   HasFSGSBase = false;
   HasLZCNT = false;
   HasBMI = false;
   HasBMI2 = false;
+  HasVBMI = false;
   HasRTM = false;
   HasHLE = false;
   HasERI = false;
   HasCDI = false;
   HasPFI = false;
   HasDQI = false;
   HasBWI = false;
   HasVLX = false;