Index: llvm/trunk/include/llvm/Support/X86TargetParser.def
===================================================================
--- llvm/trunk/include/llvm/Support/X86TargetParser.def
+++ llvm/trunk/include/llvm/Support/X86TargetParser.def
@@ -102,6 +102,7 @@
 // Entries below this are not in libgcc/compiler-rt.
 X86_CPU_SUBTYPE       ("core2",          INTEL_CORE2_65)
 X86_CPU_SUBTYPE       ("penryn",         INTEL_CORE2_45)
+X86_CPU_SUBTYPE       ("cascadelake",    INTEL_COREI7_CASCADELAKE)
 X86_CPU_SUBTYPE       ("k6",             AMDPENTIUM_K6)
 X86_CPU_SUBTYPE       ("k6-2",           AMDPENTIUM_K62)
 X86_CPU_SUBTYPE       ("k6-3",           AMDPENTIUM_K63)
Index: llvm/trunk/lib/Support/Host.cpp
===================================================================
--- llvm/trunk/lib/Support/Host.cpp
+++ llvm/trunk/lib/Support/Host.cpp
@@ -702,6 +702,12 @@
         break;
       }
 
+      if (Features2 & (1 << (X86::FEATURE_AVX512VNNI - 32))) {
+        *Type = X86::INTEL_COREI7;
+        *Subtype = X86::INTEL_COREI7_CASCADELAKE;
+        break;
+      }
+
       if (Features & (1 << X86::FEATURE_AVX512VL)) {
         *Type = X86::INTEL_COREI7;
         *Subtype = X86::INTEL_COREI7_SKYLAKE_AVX512;
Index: llvm/trunk/lib/Target/X86/X86.td
===================================================================
--- llvm/trunk/lib/Target/X86/X86.td
+++ llvm/trunk/lib/Target/X86/X86.td
@@ -883,6 +883,17 @@
 def : SkylakeServerProc<"skylake-avx512">;
 def : SkylakeServerProc<"skx">; // Legacy alias.
 
+def CLXFeatures : ProcessorFeatures<SKXFeatures.Value, [
+  FeatureVNNI
+]>;
+
+class CascadelakeProc<string Name> : ProcModel<Name, SkylakeServerModel,
+                                              CLXFeatures.Value, [
+  FeatureHasFastGather,
+  FeaturePOPCNTFalseDeps
+]>;
+def : CascadelakeProc<"cascadelake">;
+
 def CNLFeatures : ProcessorFeatures<SKLFeatures.Value, [
   FeatureAVX512,
   FeatureCDI,
Index: llvm/trunk/test/CodeGen/X86/cpus-intel.ll
===================================================================
--- llvm/trunk/test/CodeGen/X86/cpus-intel.ll
+++ llvm/trunk/test/CodeGen/X86/cpus-intel.ll
@@ -34,6 +34,7 @@
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=skylake 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=skylake-avx512 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=skx 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
+; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=cascadelake 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=cannonlake 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=icelake-client 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty
 ; RUN: llc < %s -o /dev/null -mtriple=x86_64-unknown-unknown -mcpu=icelake-server 2>&1 | FileCheck %s --check-prefix=CHECK-NO-ERROR --allow-empty