Index: include/llvm/IR/IntrinsicsX86.td
===================================================================
--- include/llvm/IR/IntrinsicsX86.td
+++ include/llvm/IR/IntrinsicsX86.td
@@ -1423,6 +1423,54 @@
           Intrinsic<[llvm_v64i8_ty],
           [llvm_v64i8_ty, llvm_v64i8_ty, llvm_v64i8_ty,  llvm_i64_ty],
           [IntrNoMem]>;
+
+  def int_x86_avx512_mask_shuf_f32x4_256 :
+         GCCBuiltin<"__builtin_ia32_shuf_f32x4_256_mask">,
+          Intrinsic<[llvm_v8f32_ty],
+          [llvm_v8f32_ty, llvm_v8f32_ty, llvm_i32_ty, llvm_v8f32_ty, llvm_i8_ty],
+          [IntrNoMem]>;
+
+  def int_x86_avx512_mask_shuf_f32x4 :
+         GCCBuiltin<"__builtin_ia32_shuf_f32x4_mask">,
+          Intrinsic<[llvm_v16f32_ty],
+          [llvm_v16f32_ty, llvm_v16f32_ty, llvm_i32_ty, llvm_v16f32_ty, llvm_i16_ty],
+          [IntrNoMem]>;
+
+  def int_x86_avx512_mask_shuf_f64x2_256 :
+         GCCBuiltin<"__builtin_ia32_shuf_f64x2_256_mask">,
+          Intrinsic<[llvm_v4f64_ty],
+          [llvm_v4f64_ty, llvm_v4f64_ty, llvm_i32_ty, llvm_v4f64_ty, llvm_i8_ty],
+          [IntrNoMem]>;
+
+  def int_x86_avx512_mask_shuf_f64x2 :
+         GCCBuiltin<"__builtin_ia32_shuf_f64x2_mask">,
+          Intrinsic<[llvm_v8f64_ty],
+          [llvm_v8f64_ty, llvm_v8f64_ty, llvm_i32_ty, llvm_v8f64_ty, llvm_i8_ty],
+          [IntrNoMem]>;
+
+  def int_x86_avx512_mask_shuf_i32x4_256 :
+         GCCBuiltin<"__builtin_ia32_shuf_i32x4_256_mask">,
+          Intrinsic<[llvm_v8i32_ty],
+          [llvm_v8i32_ty, llvm_v8i32_ty, llvm_i32_ty, llvm_v8i32_ty, llvm_i8_ty],
+          [IntrNoMem]>;
+
+  def int_x86_avx512_mask_shuf_i32x4 :
+         GCCBuiltin<"__builtin_ia32_shuf_i32x4_mask">,
+          Intrinsic<[llvm_v16i32_ty],
+          [llvm_v16i32_ty, llvm_v16i32_ty, llvm_i32_ty, llvm_v16i32_ty, llvm_i16_ty],
+          [IntrNoMem]>;
+
+  def int_x86_avx512_mask_shuf_i64x2_256 :
+         GCCBuiltin<"__builtin_ia32_shuf_i64x2_256_mask">,
+          Intrinsic<[llvm_v4i64_ty],
+          [llvm_v4i64_ty, llvm_v4i64_ty, llvm_i32_ty, llvm_v4i64_ty, llvm_i8_ty],
+          [IntrNoMem]>;
+
+  def int_x86_avx512_mask_shuf_i64x2 :
+         GCCBuiltin<"__builtin_ia32_shuf_i64x2_mask">,
+          Intrinsic<[llvm_v8i64_ty],
+          [llvm_v8i64_ty, llvm_v8i64_ty, llvm_i32_ty, llvm_v8i64_ty, llvm_i8_ty],
+          [IntrNoMem]>;
 }
 
 
Index: lib/Target/X86/X86IntrinsicsInfo.h
===================================================================
--- lib/Target/X86/X86IntrinsicsInfo.h
+++ lib/Target/X86/X86IntrinsicsInfo.h
@@ -1155,6 +1155,22 @@
                      X86ISD::SCALEF, 0),
   X86_INTRINSIC_DATA(avx512_mask_scalef_ss, INTR_TYPE_SCALAR_MASK_RM,
                      X86ISD::SCALEF, 0),
+  X86_INTRINSIC_DATA(avx512_mask_shuf_f32x4, INTR_TYPE_3OP_IMM8_MASK,
+                     X86ISD::SHUF128, 0),
+  X86_INTRINSIC_DATA(avx512_mask_shuf_f32x4_256, INTR_TYPE_3OP_IMM8_MASK,
+                     X86ISD::SHUF128, 0),
+  X86_INTRINSIC_DATA(avx512_mask_shuf_f64x2, INTR_TYPE_3OP_IMM8_MASK,
+                     X86ISD::SHUF128, 0),
+  X86_INTRINSIC_DATA(avx512_mask_shuf_f64x2_256, INTR_TYPE_3OP_IMM8_MASK,
+                     X86ISD::SHUF128, 0),
+  X86_INTRINSIC_DATA(avx512_mask_shuf_i32x4, INTR_TYPE_3OP_IMM8_MASK,
+                     X86ISD::SHUF128, 0),
+  X86_INTRINSIC_DATA(avx512_mask_shuf_i32x4_256, INTR_TYPE_3OP_IMM8_MASK,
+                     X86ISD::SHUF128, 0),
+  X86_INTRINSIC_DATA(avx512_mask_shuf_i64x2, INTR_TYPE_3OP_IMM8_MASK,
+                     X86ISD::SHUF128, 0),
+  X86_INTRINSIC_DATA(avx512_mask_shuf_i64x2_256, INTR_TYPE_3OP_IMM8_MASK,
+                     X86ISD::SHUF128, 0),
   X86_INTRINSIC_DATA(avx512_mask_sqrt_pd_128, INTR_TYPE_1OP_MASK, ISD::FSQRT, 0),
   X86_INTRINSIC_DATA(avx512_mask_sqrt_pd_256, INTR_TYPE_1OP_MASK, ISD::FSQRT, 0),
   X86_INTRINSIC_DATA(avx512_mask_sqrt_pd_512, INTR_TYPE_1OP_MASK_RM, ISD::FSQRT,
@@ -1251,7 +1267,6 @@
   X86_INTRINSIC_DATA(avx512_mask_vfnmsub_ps_512, FMA_OP_MASK, X86ISD::FNMSUB,
                      X86ISD::FNMSUB_RND),
 
-
   X86_INTRINSIC_DATA(avx512_mask_vpermi2var_d_128, VPERM_3OP_MASK,
                     X86ISD::VPERMIV3, 0),
   X86_INTRINSIC_DATA(avx512_mask_vpermi2var_d_256, VPERM_3OP_MASK,
Index: test/CodeGen/X86/avx512-intrinsics.ll
===================================================================
--- test/CodeGen/X86/avx512-intrinsics.ll
+++ test/CodeGen/X86/avx512-intrinsics.ll
@@ -3951,3 +3951,73 @@
   ret <2 x double> %res
 }
 
+declare <16 x float> @llvm.x86.avx512.mask.shuf.f32x4(<16 x float>, <16 x float>, i32, <16 x float>, i16)
+
+define <16 x float>@test_int_x86_avx512_mask_shuf_f32x4(<16 x float> %x0, <16 x float> %x1, <16 x float> %x3, i16 %x4) {
+; CHECK-LABEL: test_int_x86_avx512_mask_shuf_f32x4:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    kmovw %edi, %k1
+; CHECK-NEXT:    vshuff32x4 $22, %zmm1, %zmm0, %zmm2 {%k1}
+; CHECK-NEXT:    vshuff32x4 $22, %zmm1, %zmm0, %zmm0
+; CHECK-NEXT:    vaddps %zmm0, %zmm2, %zmm0
+; CHECK-NEXT:    retq
+  %res = call <16 x float> @llvm.x86.avx512.mask.shuf.f32x4(<16 x float> %x0, <16 x float> %x1, i32 22, <16 x float> %x3, i16 %x4)
+  %res1 = call <16 x float> @llvm.x86.avx512.mask.shuf.f32x4(<16 x float> %x0, <16 x float> %x1, i32 22, <16 x float> %x3, i16 -1)
+  %res2 = fadd <16 x float> %res, %res1
+  ret <16 x float> %res2
+}
+
+declare <8 x double> @llvm.x86.avx512.mask.shuf.f64x2(<8 x double>, <8 x double>, i32, <8 x double>, i8)
+
+define <8 x double>@test_int_x86_avx512_mask_shuf_f64x2(<8 x double> %x0, <8 x double> %x1, <8 x double> %x3, i8 %x4) {
+; CHECK-LABEL: test_int_x86_avx512_mask_shuf_f64x2:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    movzbl %dil, %eax
+; CHECK-NEXT:    kmovw %eax, %k1
+; CHECK-NEXT:    vshuff64x2 $22, %zmm1, %zmm0, %zmm2 {%k1}
+; CHECK-NEXT:    vshuff64x2 $22, %zmm1, %zmm0, %zmm3 {%k1} {z}
+; CHECK-NEXT:    vshuff64x2 $22, %zmm1, %zmm0, %zmm0
+; CHECK-NEXT:    vaddpd %zmm0, %zmm2, %zmm0
+; CHECK-NEXT:    vaddpd %zmm3, %zmm0, %zmm0
+; CHECK-NEXT:    retq
+  %res = call <8 x double> @llvm.x86.avx512.mask.shuf.f64x2(<8 x double> %x0, <8 x double> %x1, i32 22, <8 x double> %x3, i8 %x4)
+  %res1 = call <8 x double> @llvm.x86.avx512.mask.shuf.f64x2(<8 x double> %x0, <8 x double> %x1, i32 22, <8 x double> %x3, i8 -1)
+  %res2 = call <8 x double> @llvm.x86.avx512.mask.shuf.f64x2(<8 x double> %x0, <8 x double> %x1, i32 22, <8 x double> zeroinitializer, i8 %x4)
+
+  %res3 = fadd <8 x double> %res, %res1
+  %res4 = fadd <8 x double> %res3, %res2
+  ret <8 x double> %res4
+}
+
+declare <16 x i32> @llvm.x86.avx512.mask.shuf.i32x4(<16 x i32>, <16 x i32>, i32, <16 x i32>, i16)
+
+define <16 x i32>@test_int_x86_avx512_mask_shuf_i32x4(<16 x i32> %x0, <16 x i32> %x1, <16 x i32> %x3, i16 %x4) {
+; CHECK-LABEL: test_int_x86_avx512_mask_shuf_i32x4:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    kmovw %edi, %k1
+; CHECK-NEXT:    vshufi32x4 $22, %zmm1, %zmm0, %zmm2 {%k1}
+; CHECK-NEXT:    vshufi32x4 $22, %zmm1, %zmm0, %zmm0
+; CHECK-NEXT:    vpaddd %zmm0, %zmm2, %zmm0
+; CHECK-NEXT:    retq
+  %res = call <16 x i32> @llvm.x86.avx512.mask.shuf.i32x4(<16 x i32> %x0, <16 x i32> %x1, i32 22, <16 x i32> %x3, i16 %x4)
+  %res1 = call <16 x i32> @llvm.x86.avx512.mask.shuf.i32x4(<16 x i32> %x0, <16 x i32> %x1, i32 22, <16 x i32> %x3, i16 -1)
+  %res2 = add <16 x i32> %res, %res1
+  ret <16 x i32> %res2
+}
+
+declare <8 x i64> @llvm.x86.avx512.mask.shuf.i64x2(<8 x i64>, <8 x i64>, i32, <8 x i64>, i8)
+
+define <8 x i64>@test_int_x86_avx512_mask_shuf_i64x2(<8 x i64> %x0, <8 x i64> %x1, <8 x i64> %x3, i8 %x4) {
+; CHECK-LABEL: test_int_x86_avx512_mask_shuf_i64x2:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    movzbl %dil, %eax
+; CHECK-NEXT:    kmovw %eax, %k1
+; CHECK-NEXT:    vshufi64x2 $22, %zmm1, %zmm0, %zmm2 {%k1}
+; CHECK-NEXT:    vshufi64x2 $22, %zmm1, %zmm0, %zmm0
+; CHECK-NEXT:    vpaddq %zmm0, %zmm2, %zmm0
+; CHECK-NEXT:    retq
+  %res = call <8 x i64> @llvm.x86.avx512.mask.shuf.i64x2(<8 x i64> %x0, <8 x i64> %x1, i32 22, <8 x i64> %x3, i8 %x4)
+  %res1 = call <8 x i64> @llvm.x86.avx512.mask.shuf.i64x2(<8 x i64> %x0, <8 x i64> %x1, i32 22, <8 x i64> %x3, i8 -1)
+  %res2 = add <8 x i64> %res, %res1
+  ret <8 x i64> %res2
+}
Index: test/CodeGen/X86/avx512vl-intrinsics.ll
===================================================================
--- test/CodeGen/X86/avx512vl-intrinsics.ll
+++ test/CodeGen/X86/avx512vl-intrinsics.ll
@@ -4507,3 +4507,71 @@
   %res2 = fadd <8 x float> %res, %res1
   ret <8 x float> %res2
 }
+
+declare <8 x float> @llvm.x86.avx512.mask.shuf.f32x4.256(<8 x float>, <8 x float>, i32, <8 x float>, i8)
+
+define <8 x float>@test_int_x86_avx512_mask_shuf_f32x4_256(<8 x float> %x0, <8 x float> %x1, <8 x float> %x3, i8 %x4) {
+; CHECK-LABEL: test_int_x86_avx512_mask_shuf_f32x4_256:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    movzbl %dil, %eax
+; CHECK-NEXT:    kmovw %eax, %k1
+; CHECK-NEXT:    vshuff32x4 $22, %ymm1, %ymm0, %ymm2 {%k1}
+; CHECK-NEXT:    vshuff32x4 $22, %ymm1, %ymm0, %ymm0
+; CHECK-NEXT:    vaddps %ymm0, %ymm2, %ymm0
+; CHECK-NEXT:    retq
+  %res = call <8 x float> @llvm.x86.avx512.mask.shuf.f32x4.256(<8 x float> %x0, <8 x float> %x1, i32 22, <8 x float> %x3, i8 %x4)
+  %res1 = call <8 x float> @llvm.x86.avx512.mask.shuf.f32x4.256(<8 x float> %x0, <8 x float> %x1, i32 22, <8 x float> %x3, i8 -1)
+  %res2 = fadd <8 x float> %res, %res1
+  ret <8 x float> %res2
+}
+
+declare <4 x double> @llvm.x86.avx512.mask.shuf.f64x2.256(<4 x double>, <4 x double>, i32, <4 x double>, i8)
+
+define <4 x double>@test_int_x86_avx512_mask_shuf_f64x2_256(<4 x double> %x0, <4 x double> %x1, <4 x double> %x3, i8 %x4) {
+; CHECK-LABEL: test_int_x86_avx512_mask_shuf_f64x2_256:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    movzbl %dil, %eax
+; CHECK-NEXT:    kmovw %eax, %k1
+; CHECK-NEXT:    vshuff64x2 $22, %ymm1, %ymm0, %ymm2 {%k1}
+; CHECK-NEXT:    vshuff64x2 $22, %ymm1, %ymm0, %ymm0
+; CHECK-NEXT:    vaddpd %ymm0, %ymm2, %ymm0
+; CHECK-NEXT:    retq
+  %res = call <4 x double> @llvm.x86.avx512.mask.shuf.f64x2.256(<4 x double> %x0, <4 x double> %x1, i32 22, <4 x double> %x3, i8 %x4)
+  %res1 = call <4 x double> @llvm.x86.avx512.mask.shuf.f64x2.256(<4 x double> %x0, <4 x double> %x1, i32 22, <4 x double> %x3, i8 -1)
+  %res2 = fadd <4 x double> %res, %res1
+  ret <4 x double> %res2
+}
+
+declare <8 x i32> @llvm.x86.avx512.mask.shuf.i32x4.256(<8 x i32>, <8 x i32>, i32, <8 x i32>, i8)
+
+define <8 x i32>@test_int_x86_avx512_mask_shuf_i32x4_256(<8 x i32> %x0, <8 x i32> %x1, <8 x i32> %x3, i8 %x4) {
+; CHECK-LABEL: test_int_x86_avx512_mask_shuf_i32x4_256:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    movzbl %dil, %eax
+; CHECK-NEXT:    kmovw %eax, %k1
+; CHECK-NEXT:    vshufi32x4 $22, %ymm1, %ymm0, %ymm2 {%k1}
+; CHECK-NEXT:    vshufi32x4 $22, %ymm1, %ymm0, %ymm0
+; CHECK-NEXT:    vpaddd %ymm0, %ymm2, %ymm0
+; CHECK-NEXT:    retq
+  %res = call <8 x i32> @llvm.x86.avx512.mask.shuf.i32x4.256(<8 x i32> %x0, <8 x i32> %x1, i32 22, <8 x i32> %x3, i8 %x4)
+  %res1 = call <8 x i32> @llvm.x86.avx512.mask.shuf.i32x4.256(<8 x i32> %x0, <8 x i32> %x1, i32 22, <8 x i32> %x3, i8 -1)
+  %res2 = add <8 x i32> %res, %res1
+  ret <8 x i32> %res2
+}
+
+declare <4 x i64> @llvm.x86.avx512.mask.shuf.i64x2.256(<4 x i64>, <4 x i64>, i32, <4 x i64>, i8)
+
+define <4 x i64>@test_int_x86_avx512_mask_shuf_i64x2_256(<4 x i64> %x0, <4 x i64> %x1, <4 x i64> %x3, i8 %x4) {
+; CHECK-LABEL: test_int_x86_avx512_mask_shuf_i64x2_256:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    movzbl %dil, %eax
+; CHECK-NEXT:    kmovw %eax, %k1
+; CHECK-NEXT:    vshufi64x2 $22, %ymm1, %ymm0, %ymm2 {%k1}
+; CHECK-NEXT:    vshufi64x2 $22, %ymm1, %ymm0, %ymm0
+; CHECK-NEXT:    vpaddq %ymm0, %ymm2, %ymm0
+; CHECK-NEXT:    retq
+  %res = call <4 x i64> @llvm.x86.avx512.mask.shuf.i64x2.256(<4 x i64> %x0, <4 x i64> %x1, i32 22, <4 x i64> %x3, i8 %x4)
+  %res1 = call <4 x i64> @llvm.x86.avx512.mask.shuf.i64x2.256(<4 x i64> %x0, <4 x i64> %x1, i32 22, <4 x i64> %x3, i8 -1)
+  %res2 = add <4 x i64> %res, %res1
+  ret <4 x i64> %res2
+}