[x86] Enable Broadwell target.
Added FeatureSMAP.

Broadwell ISA includes Haswell ISA + ADX + RDSEED + SMAP

llvm-svn: 216161
diff --git a/llvm/lib/Target/X86/X86Subtarget.h b/llvm/lib/Target/X86/X86Subtarget.h
index 3c3a2b8..83e0b5e 100644
--- a/llvm/lib/Target/X86/X86Subtarget.h
+++ b/llvm/lib/Target/X86/X86Subtarget.h
@@ -148,6 +148,9 @@
   /// HasRDSEED - Processor has RDSEED instructions.
   bool HasRDSEED;
 
+  /// HasSMAP - Processor has SMAP instructions.
+  bool HasSMAP;
+
   /// IsBTMemSlow - True if BT (bit test) of memory instructions are slow.
   bool IsBTMemSlow;
 
@@ -358,6 +361,7 @@
   bool hasSGX() const { return HasSGX; }
   bool hasPRFCHW() const { return HasPRFCHW; }
   bool hasRDSEED() const { return HasRDSEED; }
+  bool hasSMAP() const { return HasSMAP; }
   bool isBTMemSlow() const { return IsBTMemSlow; }
   bool isSHLDSlow() const { return IsSHLDSlow; }
   bool isUnalignedMemAccessFast() const { return IsUAMemFast; }