Index: include/clang/Basic/X86Target.def
===================================================================
--- include/clang/Basic/X86Target.def
+++ include/clang/Basic/X86Target.def
@@ -149,7 +149,11 @@
 
 /// \name Icelake Client
 /// Icelake client microarchitecture based processors.
-PROC(Icelake, "icelake", PROC_64_BIT)
+PROC(IcelakeClient, "icelake-client", PROC_64_BIT)
+
+/// \name Icelake Server
+/// Icelake server microarchitecture based processors.
+PROC(IcelakeServer, "icelake-server", PROC_64_BIT)
 
 /// \name Knights Landing
 /// Knights Landing processor.
Index: lib/Basic/Targets/X86.cpp
===================================================================
--- lib/Basic/Targets/X86.cpp
+++ lib/Basic/Targets/X86.cpp
@@ -153,7 +153,8 @@
     setFeatureEnabledImpl(Features, "mmx", true);
     break;
 
-  case CK_Icelake:
+  case CK_IcelakeServer:
+  case CK_IcelakeClient:
     setFeatureEnabledImpl(Features, "vaes", true);
     setFeatureEnabledImpl(Features, "gfni", true);
     setFeatureEnabledImpl(Features, "vpclmulqdq", true);
@@ -931,7 +932,8 @@
   case CK_SkylakeClient:
   case CK_SkylakeServer:
   case CK_Cannonlake:
-  case CK_Icelake:
+  case CK_IcelakeClient:
+  case CK_IcelakeServer:
     // FIXME: Historically, we defined this legacy name, it would be nice to
     // remove it at some point. We've never exposed fine-grained names for
     // recent primary x86 CPUs, and we should keep it that way.
Index: test/Driver/x86-march.c
===================================================================
--- test/Driver/x86-march.c
+++ test/Driver/x86-march.c
@@ -60,9 +60,13 @@
 // RUN:   | FileCheck %s -check-prefix=cannonlake
 // cannonlake: "-target-cpu" "cannonlake"
 //
-// RUN: %clang -target x86_64-unknown-unknown -c -### %s -march=icelake 2>&1 \
-// RUN:   | FileCheck %s -check-prefix=icelake
-// icelake: "-target-cpu" "icelake"
+// RUN: %clang -target x86_64-unknown-unknown -c -### %s -march=icelake-client 2>&1 \
+// RUN:   | FileCheck %s -check-prefix=icelake-client
+// icelake-client: "-target-cpu" "icelake-client"
+//
+// RUN: %clang -target x86_64-unknown-unknown -c -### %s -march=icelake-server 2>&1 \
+// RUN:   | FileCheck %s -check-prefix=icelake-server
+// icelake-server: "-target-cpu" "icelake-server"
 //
 // RUN: %clang -target x86_64-unknown-unknown -c -### %s -march=lakemont 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=lakemont
Index: test/Frontend/x86-target-cpu.c
===================================================================
--- test/Frontend/x86-target-cpu.c
+++ test/Frontend/x86-target-cpu.c
@@ -13,7 +13,8 @@
 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-cpu skylake-avx512 -verify %s
 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-cpu skx -verify %s
 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-cpu cannonlake -verify %s
-// RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-cpu icelake -verify %s
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-cpu icelake-client -verify %s
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-cpu icelake-server -verify %s
 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-cpu knl -verify %s
 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-cpu knm -verify %s
 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-cpu bonnell -verify %s
Index: test/Misc/target-invalid-cpu-note.c
===================================================================
--- test/Misc/target-invalid-cpu-note.c
+++ test/Misc/target-invalid-cpu-note.c
@@ -16,7 +16,7 @@
 // X86-SAME: nocona, core2, penryn, bonnell, atom, silvermont, slm, goldmont,
 // X86-SAME: nehalem, corei7, westmere, sandybridge, corei7-avx, ivybridge,
 // X86-SAME: core-avx-i, haswell, core-avx2, broadwell, skylake, skylake-avx512,
-// X86-SAME: skx, cannonlake, icelake, knl, knm, lakemont, k6, k6-2, k6-3,
+// X86-SAME: skx, cannonlake, icelake-client, icelake-server, knl, knm, lakemont, k6, k6-2, k6-3,
 // X86-SAME: athlon, athlon-tbird, athlon-xp, athlon-mp, athlon-4, k8, athlon64,
 // X86-SAME: athlon-fx, opteron, k8-sse3, athlon64-sse3, opteron-sse3, amdfam10,
 // X86-SAME: barcelona, btver1, btver2, bdver1, bdver2, bdver3, bdver4, znver1,
@@ -28,7 +28,7 @@
 // X86_64-SAME: atom, silvermont, slm, goldmont, nehalem, corei7, westmere,
 // X86_64-SAME: sandybridge, corei7-avx, ivybridge, core-avx-i, haswell,
 // X86_64-SAME: core-avx2, broadwell, skylake, skylake-avx512, skx, cannonlake,
-// X86_64-SAME: icelake, knl, knm, k8, athlon64, athlon-fx, opteron, k8-sse3,
+// X86_64-SAME: icelake-client, icelake-server, knl, knm, k8, athlon64, athlon-fx, opteron, k8-sse3,
 // X86_64-SAME: athlon64-sse3, opteron-sse3, amdfam10, barcelona, btver1,
 // X86_64-SAME: btver2, bdver1, bdver2, bdver3, bdver4, znver1, x86-64
 
Index: test/Preprocessor/predefined-arch-macros.c
===================================================================
--- test/Preprocessor/predefined-arch-macros.c
+++ test/Preprocessor/predefined-arch-macros.c
@@ -1055,7 +1055,7 @@
 // CHECK_CNL_M64: #define __x86_64 1
 // CHECK_CNL_M64: #define __x86_64__ 1
 
-// RUN: %clang -march=icelake -m32 -E -dM %s -o - 2>&1 \
+// RUN: %clang -march=icelake-client -m32 -E -dM %s -o - 2>&1 \
 // RUN:     -target i386-unknown-linux \
 // RUN:   | FileCheck -match-full-lines %s -check-prefix=CHECK_ICL_M32
 // CHECK_ICL_M32: #define __AES__ 1
@@ -1110,8 +1110,64 @@
 // CHECK_ICL_M32: #define __i386__ 1
 // CHECK_ICL_M32: #define __tune_corei7__ 1
 // CHECK_ICL_M32: #define i386 1
-//
-// RUN: %clang -march=icelake -m64 -E -dM %s -o - 2>&1 \
+
+// RUN: %clang -march=icelake-server -m32 -E -dM %s -o - 2>&1 \
+// RUN:     -target i386-unknown-linux \
+// RUN:   | FileCheck -match-full-lines %s -check-prefix=CHECK_ICX_M32
+// CHECK_ICX_M32: #define __AES__ 1
+// CHECK_ICX_M32: #define __AVX2__ 1
+// CHECK_ICX_M32: #define __AVX512BITALG__ 1
+// CHECK_ICX_M32: #define __AVX512BW__ 1
+// CHECK_ICX_M32: #define __AVX512CD__ 1
+// CHECK_ICX_M32: #define __AVX512DQ__ 1
+// CHECK_ICX_M32: #define __AVX512F__ 1
+// CHECK_ICX_M32: #define __AVX512IFMA__ 1
+// CHECK_ICX_M32: #define __AVX512VBMI2__ 1
+// CHECK_ICX_M32: #define __AVX512VBMI__ 1
+// CHECK_ICX_M32: #define __AVX512VL__ 1
+// CHECK_ICX_M32: #define __AVX512VNNI__ 1
+// CHECK_ICX_M32: #define __AVX512VPOPCNTDQ__ 1
+// CHECK_ICX_M32: #define __AVX__ 1
+// CHECK_ICX_M32: #define __BMI2__ 1
+// CHECK_ICX_M32: #define __BMI__ 1
+// CHECK_ICX_M32: #define __CLFLUSHOPT__ 1
+// CHECK_ICX_M32: #define __CLWB__ 1
+// CHECK_ICX_M32: #define __F16C__ 1
+// CHECK_ICX_M32: #define __FMA__ 1
+// CHECK_ICX_M32: #define __GFNI__ 1
+// CHECK_ICX_M32: #define __LZCNT__ 1
+// CHECK_ICX_M32: #define __MMX__ 1
+// CHECK_ICX_M32: #define __MPX__ 1
+// CHECK_ICX_M32: #define __PCLMUL__ 1
+// CHECK_ICX_M32: #define __PKU__ 1
+// CHECK_ICX_M32: #define __POPCNT__ 1
+// CHECK_ICX_M32: #define __PRFCHW__ 1
+// CHECK_ICX_M32: #define __RDPID__ 1
+// CHECK_ICX_M32: #define __RDRND__ 1
+// CHECK_ICX_M32: #define __RDSEED__ 1
+// CHECK_ICX_M32: #define __RTM__ 1
+// CHECK_ICX_M32: #define __SGX__ 1
+// CHECK_ICX_M32: #define __SHA__ 1
+// CHECK_ICX_M32: #define __SSE2__ 1
+// CHECK_ICX_M32: #define __SSE3__ 1
+// CHECK_ICX_M32: #define __SSE4_1__ 1
+// CHECK_ICX_M32: #define __SSE4_2__ 1
+// CHECK_ICX_M32: #define __SSE__ 1
+// CHECK_ICX_M32: #define __SSSE3__ 1
+// CHECK_ICX_M32: #define __VAES__ 1
+// CHECK_ICX_M32: #define __VPCLMULQDQ__ 1
+// CHECK_ICX_M32: #define __XSAVEC__ 1
+// CHECK_ICX_M32: #define __XSAVEOPT__ 1
+// CHECK_ICX_M32: #define __XSAVES__ 1
+// CHECK_ICX_M32: #define __XSAVE__ 1
+// CHECK_ICX_M32: #define __corei7 1
+// CHECK_ICX_M32: #define __corei7__ 1
+// CHECK_ICX_M32: #define __i386 1
+// CHECK_ICX_M32: #define __i386__ 1
+// CHECK_ICX_M32: #define __tune_corei7__ 1
+// CHECK_ICX_M32: #define i386 1
+
+// RUN: %clang -march=icelake-client -m64 -E -dM %s -o - 2>&1 \
 // RUN:     -target i386-unknown-linux \
 // RUN:   | FileCheck -match-full-lines %s -check-prefix=CHECK_ICL_M64
 // CHECK_ICL_M64: #define __AES__ 1
@@ -1168,6 +1224,63 @@
 // CHECK_ICL_M64: #define __x86_64 1
 // CHECK_ICL_M64: #define __x86_64__ 1
 
+// RUN: %clang -march=icelake-server -m64 -E -dM %s -o - 2>&1 \
+// RUN:     -target i386-unknown-linux \
+// RUN:   | FileCheck -match-full-lines %s -check-prefix=CHECK_ICX_M64
+// CHECK_ICX_M64: #define __AES__ 1
+// CHECK_ICX_M64: #define __AVX2__ 1
+// CHECK_ICX_M64: #define __AVX512BITALG__ 1
+// CHECK_ICX_M64: #define __AVX512BW__ 1
+// CHECK_ICX_M64: #define __AVX512CD__ 1
+// CHECK_ICX_M64: #define __AVX512DQ__ 1
+// CHECK_ICX_M64: #define __AVX512F__ 1
+// CHECK_ICX_M64: #define __AVX512IFMA__ 1
+// CHECK_ICX_M64: #define __AVX512VBMI2__ 1
+// CHECK_ICX_M64: #define __AVX512VBMI__ 1
+// CHECK_ICX_M64: #define __AVX512VL__ 1
+// CHECK_ICX_M64: #define __AVX512VNNI__ 1
+// CHECK_ICX_M64: #define __AVX512VPOPCNTDQ__ 1
+// CHECK_ICX_M64: #define __AVX__ 1
+// CHECK_ICX_M64: #define __BMI2__ 1
+// CHECK_ICX_M64: #define __BMI__ 1
+// CHECK_ICX_M64: #define __CLFLUSHOPT__ 1
+// CHECK_ICX_M64: #define __CLWB__ 1
+// CHECK_ICX_M64: #define __F16C__ 1
+// CHECK_ICX_M64: #define __FMA__ 1
+// CHECK_ICX_M64: #define __GFNI__ 1
+// CHECK_ICX_M64: #define __LZCNT__ 1
+// CHECK_ICX_M64: #define __MMX__ 1
+// CHECK_ICX_M64: #define __MPX__ 1
+// CHECK_ICX_M64: #define __PCLMUL__ 1
+// CHECK_ICX_M64: #define __PKU__ 1
+// CHECK_ICX_M64: #define __POPCNT__ 1
+// CHECK_ICX_M64: #define __PRFCHW__ 1
+// CHECK_ICX_M64: #define __RDPID__ 1
+// CHECK_ICX_M64: #define __RDRND__ 1
+// CHECK_ICX_M64: #define __RDSEED__ 1
+// CHECK_ICX_M64: #define __RTM__ 1
+// CHECK_ICX_M64: #define __SGX__ 1
+// CHECK_ICX_M64: #define __SHA__ 1
+// CHECK_ICX_M64: #define __SSE2__ 1
+// CHECK_ICX_M64: #define __SSE3__ 1
+// CHECK_ICX_M64: #define __SSE4_1__ 1
+// CHECK_ICX_M64: #define __SSE4_2__ 1
+// CHECK_ICX_M64: #define __SSE__ 1
+// CHECK_ICX_M64: #define __SSSE3__ 1
+// CHECK_ICX_M64: #define __VAES__ 1
+// CHECK_ICX_M64: #define __VPCLMULQDQ__ 1
+// CHECK_ICX_M64: #define __XSAVEC__ 1
+// CHECK_ICX_M64: #define __XSAVEOPT__ 1
+// CHECK_ICX_M64: #define __XSAVES__ 1
+// CHECK_ICX_M64: #define __XSAVE__ 1
+// CHECK_ICX_M64: #define __amd64 1
+// CHECK_ICX_M64: #define __amd64__ 1
+// CHECK_ICX_M64: #define __corei7 1
+// CHECK_ICX_M64: #define __corei7__ 1
+// CHECK_ICX_M64: #define __tune_corei7__ 1
+// CHECK_ICX_M64: #define __x86_64 1
+// CHECK_ICX_M64: #define __x86_64__ 1
+
 // RUN: %clang -march=atom -m32 -E -dM %s -o - 2>&1 \
 // RUN:     -target i386-unknown-linux \
 // RUN:   | FileCheck -match-full-lines %s -check-prefix=CHECK_ATOM_M32