diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index c9381218eee78..7f9d971ceeeea 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -1396,6 +1396,8 @@ X86TargetLowering::X86TargetLowering(const X86TargetMachine &TM,
       setOperationAction(ISD::FMINIMUM,          VT, Custom);
     }
 
+    setOperationAction(ISD::FABS, MVT::v8f16, Custom);
+
     // (fp_to_int:v8i16 (v8f32 ..)) requires the result type to be promoted
     // even though v8i16 is a legal type.
     setOperationPromotedToType(ISD::FP_TO_SINT,        MVT::v8i16, MVT::v8i32);
diff --git a/llvm/test/CodeGen/X86/vec_fabs.ll b/llvm/test/CodeGen/X86/vec_fabs.ll
index 8876d2f9b1992..8af067d88a57e 100644
--- a/llvm/test/CodeGen/X86/vec_fabs.ll
+++ b/llvm/test/CodeGen/X86/vec_fabs.ll
@@ -2,10 +2,12 @@
 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avx | FileCheck %s --check-prefixes=X86,X86-AVX,X86-AVX1
 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefixes=X86,X86-AVX,X86-AVX2
 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avx512vl | FileCheck %s --check-prefixes=X86,X86-AVX512VL
+; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avx512fp16 | FileCheck %s --check-prefixes=X86,X86-AVX512FP16
 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avx512dq,+avx512vl | FileCheck %s --check-prefixes=X86,X86-AVX512VLDQ
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefixes=X64,X64-AVX,X64-AVX1
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefixes=X64,X64-AVX,X64-AVX2
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vl | FileCheck %s --check-prefixes=X64,X64-AVX512VL
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512fp16 | FileCheck %s --check-prefixes=X64,X64-AVX512FP16
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512dq,+avx512vl | FileCheck %s --check-prefixes=X64,X64-AVX512VLDQ
 
 define <2 x double> @fabs_v2f64(<2 x double> %p) {
@@ -137,6 +139,86 @@ define <4 x double> @fabs_v4f64(<4 x double> %p) {
 }
 declare <4 x double> @llvm.fabs.v4f64(<4 x double> %p)
 
+define <8 x half> @fabs_v8f16(ptr %p) {
+; X86-AVX1-LABEL: fabs_v8f16:
+; X86-AVX1:       # %bb.0:
+; X86-AVX1-NEXT:    movl 4(%esp), [[ADDRREG:%.*]]
+; X86-AVX1-NEXT:    vmovaps ([[ADDRREG]]), %xmm0
+; X86-AVX1-NEXT:    vandps {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0, %xmm0
+; X86-AVX1-NEXT:    retl
+
+; X86-AVX2-LABEL: fabs_v8f16:
+; X86-AVX2:       # %bb.0:
+; X86-AVX2-NEXT:    movl 4(%esp), [[REG:%.*]]
+; X86-AVX2-NEXT:    vpbroadcastw {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
+; X86-AVX2-NEXT:    vpand ([[REG]]), %xmm0, %xmm0
+; X86-AVX2-NEXT:    retl
+
+; X64-AVX512VL-LABEL: fabs_v8f16:
+; X64-AVX512VL:       # %bb.0:
+; X64-AVX512VL-NEXT:    vpbroadcastw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
+; X64-AVX512VL-NEXT:    vpand (%rdi), %xmm0, %xmm0
+; X64-AVX512VL-NEXT:    retq
+
+; X64-AVX1-LABEL: fabs_v8f16:
+; X64-AVX1:       # %bb.0:
+; X64-AVX1-NEXT:    vmovaps (%rdi), %xmm0
+; X64-AVX1-NEXT:    vandps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
+; X64-AVX1-NEXT:    retq
+
+; X64-AVX2-LABEL: fabs_v8f16:
+; X64-AVX2:       # %bb.0:
+; X64-AVX2-NEXT:    vpbroadcastw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
+; X64-AVX2-NEXT:    vpand (%rdi), %xmm0, %xmm0
+; X64-AVX2-NEXT:    retq
+
+  %v = load <8 x half>, ptr %p, align 16
+  %nnv = call <8 x half> @llvm.fabs.v8f16(<8 x half> %v)
+  ret <8 x half> %nnv
+}
+declare <8 x half> @llvm.fabs.v8f16(<8 x half> %p)
+
+define <16 x half> @fabs_v16f16(ptr %p) {
+; X86-AVX512FP16-LABEL: fabs_v16f16:
+; X86-AVX512FP16:       # %bb.0:
+; X86-AVX512FP16-NEXT:  movl 4(%esp), [[REG:%.*]]
+; X86-AVX512FP16-NEXT:  vpbroadcastw {{\.?LCPI[0-9]+_[0-9]+}}, [[YMM:%ymm[0-9]+]]
+; X86-AVX512FP16-NEXT:  vpand ([[REG]]), [[YMM]], [[YMM]]
+; X86-AVX512FP16-NEXT:  retl
+
+; X64-AVX512FP16-LABEL: fabs_v16f16:
+; X64-AVX512FP16:       # %bb.0:
+; X64-AVX512FP16-NEXT:  vpbroadcastw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), [[YMM:%ymm[0-9]+]]
+; X64-AVX512FP16-NEXT:  vpand (%rdi), [[YMM]], [[YMM]]
+; X64-AVX512FP16-NEXT:  retq
+; 
+  %v = load <16 x half>, ptr %p, align 32
+  %nnv = call <16 x half> @llvm.fabs.v16f16(<16 x half> %v)
+  ret <16 x half> %nnv
+}
+declare <16 x half> @llvm.fabs.v16f16(<16 x half> %p)
+
+define <32 x half> @fabs_v32f16(ptr %p) {
+; X86-AVX512FP16-LABEL: fabs_v32f16:
+; X86-AVX512FP16:       # %bb.0:
+; X86-AVX512FP16-NEXT:  movl 4(%esp), [[REG:%.*]]
+; X86-AVX512FP16-NEXT:  vpbroadcastw {{\.?LCPI[0-9]+_[0-9]+}}, [[ZMM:%zmm[0-9]+]]
+; X86-AVX512FP16-NEXT:  vpandq ([[REG]]), [[ZMM]], [[ZMM]]
+; X86-AVX512FP16-NEXT:  retl
+
+; X64-AVX512FP16-LABEL: fabs_v32f16:
+; X64-AVX512FP16:       # %bb.0:
+; X64-AVX512FP16-NEXT:  vpbroadcastw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), [[ZMM:%zmm[0-9]+]]
+; X64-AVX512FP16-NEXT:  vpandq (%rdi), [[ZMM]], [[ZMM]]
+; X64-AVX512FP16-NEXT:  retq
+
+  %v = load <32 x half>, ptr %p, align 64
+  %nnv = call <32 x half> @llvm.fabs.v32f16(<32 x half> %v)
+  ret <32 x half> %nnv
+}
+declare <32 x half> @llvm.fabs.v32f16(<32 x half> %p)
+
+
 define <8 x float> @fabs_v8f32(<8 x float> %p) {
 ; X86-AVX1-LABEL: fabs_v8f32:
 ; X86-AVX1:       # %bb.0: