Index: include/llvm/IR/IntrinsicsX86.td
===================================================================
--- include/llvm/IR/IntrinsicsX86.td
+++ include/llvm/IR/IntrinsicsX86.td
@@ -4026,6 +4026,12 @@
   def int_x86_avx512_kunpck_bw : GCCBuiltin<"__builtin_ia32_kunpckhi">,
               Intrinsic<[llvm_i16_ty], [llvm_i16_ty, llvm_i16_ty],
                          [IntrNoMem]>;
+  def int_x86_avx512_kunpck_wd : GCCBuiltin<"__builtin_ia32_kunpcksi">,
+              Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                         [IntrNoMem]>;
+  def int_x86_avx512_kunpck_dq : GCCBuiltin<"__builtin_ia32_kunpckdi">,
+              Intrinsic<[llvm_i64_ty], [llvm_i64_ty, llvm_i64_ty],
+                         [IntrNoMem]>;
   def int_x86_avx512_kortestz_w : GCCBuiltin<"__builtin_ia32_kortestzhi">,
               Intrinsic<[llvm_i32_ty], [llvm_i16_ty, llvm_i16_ty],
                         [IntrNoMem]>;
Index: lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- lib/Target/X86/X86ISelLowering.cpp
+++ lib/Target/X86/X86ISelLowering.cpp
@@ -15998,19 +15998,24 @@
   }
 
   if (Mask.getSimpleValueType() == MVT::i64 && Subtarget->is32Bit()) {
-    assert(MaskVT == MVT::v64i1 && "Unexpected mask VT!");
-    assert(Subtarget->hasBWI() && "Expected AVX512BW target!");
-    // In case 32bit mode, bitcast i64 is illegal, extend/split it.
-    SDValue Lo, Hi;
-    Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32, Mask,
-                        DAG.getConstant(0, dl, MVT::i32));
-    Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32, Mask,
-                        DAG.getConstant(1, dl, MVT::i32));
+    if (MaskVT == MVT::v64i1) {
+      assert(Subtarget->hasBWI() && "Expected AVX512BW target!");
+      // In case 32bit mode, bitcast i64 is illegal, extend/split it.
+      SDValue Lo, Hi;
+      Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32, Mask,
+                          DAG.getConstant(0, dl, MVT::i32));
+      Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, MVT::i32, Mask,
+                          DAG.getConstant(1, dl, MVT::i32));
 
-    Lo = DAG.getNode(ISD::BITCAST, dl, MVT::v32i1, Lo);
-    Hi = DAG.getNode(ISD::BITCAST, dl, MVT::v32i1, Hi);
+      Lo = DAG.getBitcast(MVT::v32i1, Lo);
+      Hi = DAG.getBitcast(MVT::v32i1, Hi);
 
-    return DAG.getNode(ISD::CONCAT_VECTORS, dl, MVT::v64i1, Hi, Lo);
+      return DAG.getNode(ISD::CONCAT_VECTORS, dl, MVT::v64i1, Lo, Hi);
+    } else {
+      MVT TruncVT = MVT::getIntegerVT(MaskVT.getSizeInBits());
+      return DAG.getBitcast(MaskVT,
+                            DAG.getNode(ISD::TRUNCATE, dl, TruncVT, Mask));
+    }
 
   } else {
     MVT BitcastVT = MVT::getVectorVT(MVT::i1,
@@ -16600,6 +16605,18 @@
       return DAG.getNode(IntrData->Opc0, dl, VT, VMask, Op.getOperand(1),
                          Op.getOperand(2));
     }
+    case KUNPCK: {
+      MVT VT = Op.getSimpleValueType();
+      MVT MaskVT = MVT::getVectorVT(MVT::i1, VT.getSizeInBits()/2);
+
+      SDValue Src1 = getMaskNode(Op.getOperand(1), MaskVT, Subtarget, DAG, dl);
+      SDValue Src2 = getMaskNode(Op.getOperand(2), MaskVT, Subtarget, DAG, dl);
+      // Arguments should be swapped.
+      SDValue Res = DAG.getNode(IntrData->Opc0, dl,
+                                MVT::getVectorVT(MVT::i1, VT.getSizeInBits()),
+                                Src2, Src1);
+      return DAG.getBitcast(VT, Res);
+    }
     default:
       break;
     }
@@ -20001,8 +20018,9 @@
     }
   }
   case ISD::INTRINSIC_WO_CHAIN: {
-	  Results.push_back(LowerINTRINSIC_WO_CHAIN(SDValue(N, 0), Subtarget, DAG));
-	  return;
+    if (SDValue V = LowerINTRINSIC_WO_CHAIN(SDValue(N, 0), Subtarget, DAG))
+      Results.push_back(V);
+    return;
   }
   case ISD::READCYCLECOUNTER: {
     return getReadTimeStampCounter(N, dl, X86ISD::RDTSC_DAG, DAG, Subtarget,
Index: lib/Target/X86/X86InstrAVX512.td
===================================================================
--- lib/Target/X86/X86InstrAVX512.td
+++ lib/Target/X86/X86InstrAVX512.td
@@ -2396,16 +2396,6 @@
 defm KUNPCKWD : avx512_mask_unpck<"wd", VK32, v32i1, VK16, HasBWI>, PS;
 defm KUNPCKDQ : avx512_mask_unpck<"dq", VK64, v64i1, VK32, HasBWI>, PS, VEX_W;
 
-multiclass avx512_mask_unpck_int<string IntName, string InstName> {
-  let Predicates = [HasAVX512] in
-    def : Pat<(!cast<Intrinsic>("int_x86_avx512_"##IntName##"_bw")
-                (i16 GR16:$src1), (i16 GR16:$src2)),
-              (COPY_TO_REGCLASS (!cast<Instruction>(InstName##"BWrr")
-              (v16i1 (COPY_TO_REGCLASS GR16:$src1, VK16)),
-              (v16i1 (COPY_TO_REGCLASS GR16:$src2, VK16))), GR16)>;
-}
-defm : avx512_mask_unpck_int<"kunpck",  "KUNPCK">;
-
 // Mask bit testing
 multiclass avx512_mask_testop<bits<8> opc, string OpcodeStr, RegisterClass KRC,
                               SDNode OpNode, Predicate prd> {
@@ -2496,6 +2486,9 @@
 def : Pat<(v8i1 (extract_subvector (v16i1 VK16:$src), (iPTR 8))),
           (v8i1 (COPY_TO_REGCLASS (KSHIFTRWri VK16:$src, (i8 8)), VK8))>;
 
+def : Pat<(v16i1 (extract_subvector (v32i1 VK32:$src), (iPTR 0))),
+          (v16i1 (COPY_TO_REGCLASS VK32:$src, VK16))>;
+
 def : Pat<(v32i1 (extract_subvector (v64i1 VK64:$src), (iPTR 0))),
           (v32i1 (COPY_TO_REGCLASS VK64:$src, VK32))>;
 
Index: lib/Target/X86/X86IntrinsicsInfo.h
===================================================================
--- lib/Target/X86/X86IntrinsicsInfo.h
+++ lib/Target/X86/X86IntrinsicsInfo.h
@@ -30,7 +30,7 @@
   COMPRESS_EXPAND_IN_REG, COMPRESS_TO_MEM,
   TRUNCATE_TO_MEM_VI8, TRUNCATE_TO_MEM_VI16, TRUNCATE_TO_MEM_VI32,
   EXPAND_FROM_MEM, BLEND, INSERT_SUBVEC,
-  TERLOG_OP_MASK, TERLOG_OP_MASKZ, BROADCASTM
+  TERLOG_OP_MASK, TERLOG_OP_MASKZ, BROADCASTM, KUNPCK
 };
 
 struct IntrinsicData {
@@ -341,7 +341,9 @@
   X86_INTRINSIC_DATA(avx512_cvtusi642ss, INTR_TYPE_3OP, X86ISD::UINT_TO_FP_RND, 0),
   X86_INTRINSIC_DATA(avx512_exp2_pd, INTR_TYPE_1OP_MASK_RM, X86ISD::EXP2, 0),
   X86_INTRINSIC_DATA(avx512_exp2_ps, INTR_TYPE_1OP_MASK_RM, X86ISD::EXP2, 0),
-
+  X86_INTRINSIC_DATA(avx512_kunpck_bw, KUNPCK, ISD::CONCAT_VECTORS, 0),
+  X86_INTRINSIC_DATA(avx512_kunpck_dq, KUNPCK, ISD::CONCAT_VECTORS, 0),
+  X86_INTRINSIC_DATA(avx512_kunpck_wd, KUNPCK, ISD::CONCAT_VECTORS, 0),
   X86_INTRINSIC_DATA(avx512_mask3_vfmadd_pd_128, FMA_OP_MASK3, X86ISD::FMADD, 0),
   X86_INTRINSIC_DATA(avx512_mask3_vfmadd_pd_256, FMA_OP_MASK3, X86ISD::FMADD, 0),
   X86_INTRINSIC_DATA(avx512_mask3_vfmadd_pd_512, FMA_OP_MASK3, X86ISD::FMADD,
@@ -1827,7 +1829,7 @@
          "Intrinsic data tables should have unique entries");
 }
 
-// X86 specific compare constants.
+// X86 specific compare constants.
 // They must be kept in synch with avxintrin.h
 #define _X86_CMP_EQ_OQ    0x00 /* Equal (ordered, non-signaling)  */
 #define _X86_CMP_LT_OS    0x01 /* Less-than (ordered, signaling)  */
Index: test/CodeGen/X86/avx512-intrinsics.ll
===================================================================
--- test/CodeGen/X86/avx512-intrinsics.ll
+++ test/CodeGen/X86/avx512-intrinsics.ll
@@ -65,9 +65,9 @@
 define i16 @unpckbw_test(i16 %a0, i16 %a1) {
 ; CHECK-LABEL: unpckbw_test:
 ; CHECK:       ## BB#0:
-; CHECK-NEXT:    kmovw %esi, %k0
-; CHECK-NEXT:    kmovw %edi, %k1
-; CHECK-NEXT:    kunpckbw %k0, %k1, %k0
+; CHECK-NEXT:    kmovw %edi, %k0
+; CHECK-NEXT:    kmovw %esi, %k1
+; CHECK-NEXT:    kunpckbw %k1, %k0, %k0
 ; CHECK-NEXT:    kmovw %k0, %eax
 ; CHECK-NEXT:    retq
   %res = call i16 @llvm.x86.avx512.kunpck.bw(i16 %a0, i16 %a1)
@@ -6160,76 +6160,103 @@
 }
 
 define i32 @test_x86_avx512_comi_sd_eq_sae(<2 x double> %a0, <2 x double> %a1) {
-; CHECK-LABEL: test_x86_avx512_comi_sd_eq_sae
-; CHECK: vcomisd {sae}, %xmm1, %xmm0
-; CHECK-NEXT: sete	%al
-  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 0, i32 8) 
+; CHECK-LABEL: test_x86_avx512_comi_sd_eq_sae:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vcomisd {sae}, %xmm1, %xmm0
+; CHECK-NEXT:    sete %al
+; CHECK-NEXT:    movzbl %al, %eax
+; CHECK-NEXT:    retq
+  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 0, i32 8)
   ret i32 %res
 }
 
 define i32 @test_x86_avx512_ucomi_sd_eq_sae(<2 x double> %a0, <2 x double> %a1) {
-; CHECK-LABEL: test_x86_avx512_ucomi_sd_eq_sae
-; CHECK: vucomisd {sae}, %xmm1, %xmm0
-; CHECK-NEXT: sete %al
-  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 8, i32 8) 
+; CHECK-LABEL: test_x86_avx512_ucomi_sd_eq_sae:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vucomisd {sae}, %xmm1, %xmm0
+; CHECK-NEXT:    sete %al
+; CHECK-NEXT:    movzbl %al, %eax
+; CHECK-NEXT:    retq
+  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 8, i32 8)
   ret i32 %res
 }
 
 define i32 @test_x86_avx512_comi_sd_eq(<2 x double> %a0, <2 x double> %a1) {
-; CHECK-LABEL: test_x86_avx512_comi_sd_eq
-; CHECK: vcomisd %xmm1, %xmm0
-; CHECK-NEXT: sete %al
-  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 0, i32 4) 
+; CHECK-LABEL: test_x86_avx512_comi_sd_eq:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vcomisd %xmm1, %xmm0
+; CHECK-NEXT:    sete %al
+; CHECK-NEXT:    movzbl %al, %eax
+; CHECK-NEXT:    retq
+  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 0, i32 4)
   ret i32 %res
 }
 
 define i32 @test_x86_avx512_ucomi_sd_eq(<2 x double> %a0, <2 x double> %a1) {
-; CHECK-LABEL: test_x86_avx512_ucomi_sd_eq
-; CHECK: vucomisd %xmm1, %xmm0
-; CHECK-NEXT: sete %al
-  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 8, i32 4) 
+; CHECK-LABEL: test_x86_avx512_ucomi_sd_eq:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vucomisd %xmm1, %xmm0
+; CHECK-NEXT:    sete %al
+; CHECK-NEXT:    movzbl %al, %eax
+; CHECK-NEXT:    retq
+  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 8, i32 4)
   ret i32 %res
 }
 
 define i32 @test_x86_avx512_comi_sd_lt_sae(<2 x double> %a0, <2 x double> %a1) {
-; CHECK-LABEL: test_x86_avx512_comi_sd_lt_sae
-; CHECK: vcomisd {sae}, %xmm1, %xmm0
-; CHECK-NEXT: sbbl %eax, %eax
-  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 1, i32 8) 
+; CHECK-LABEL: test_x86_avx512_comi_sd_lt_sae:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vcomisd {sae}, %xmm1, %xmm0
+; CHECK-NEXT:    sbbl %eax, %eax
+; CHECK-NEXT:    andl $1, %eax
+; CHECK-NEXT:    retq
+  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 1, i32 8)
   ret i32 %res
 }
 
 define i32 @test_x86_avx512_ucomi_sd_lt_sae(<2 x double> %a0, <2 x double> %a1) {
-; CHECK-LABEL: test_x86_avx512_ucomi_sd_lt_sae
-; CHECK: vucomisd {sae}, %xmm1, %xmm0
-; CHECK-NEXT: sbbl %eax, %eax
-  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 9, i32 8) 
+; CHECK-LABEL: test_x86_avx512_ucomi_sd_lt_sae:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vucomisd {sae}, %xmm1, %xmm0
+; CHECK-NEXT:    sbbl %eax, %eax
+; CHECK-NEXT:    andl $1, %eax
+; CHECK-NEXT:    retq
+  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 9, i32 8)
   ret i32 %res
 }
 
 define i32 @test_x86_avx512_comi_sd_lt(<2 x double> %a0, <2 x double> %a1) {
-; CHECK-LABEL: test_x86_avx512_comi_sd_lt
-; CHECK: vcomisd %xmm1, %xmm0
-; CHECK-NEXT: sbbl %eax, %eax
-  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 1, i32 4) 
+; CHECK-LABEL: test_x86_avx512_comi_sd_lt:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vcomisd %xmm1, %xmm0
+; CHECK-NEXT:    sbbl %eax, %eax
+; CHECK-NEXT:    andl $1, %eax
+; CHECK-NEXT:    retq
+  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 1, i32 4)
   ret i32 %res
 }
 
 define i32 @test_x86_avx512_ucomi_sd_lt(<2 x double> %a0, <2 x double> %a1) {
-; CHECK-LABEL: test_x86_avx512_ucomi_sd_lt
-; CHECK: vucomisd %xmm1, %xmm0
-; CHECK-NEXT: sbbl %eax, %eax
-  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 9, i32 4) 
+; CHECK-LABEL: test_x86_avx512_ucomi_sd_lt:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vucomisd %xmm1, %xmm0
+; CHECK-NEXT:    sbbl %eax, %eax
+; CHECK-NEXT:    andl $1, %eax
+; CHECK-NEXT:    retq
+  %res = call i32 @llvm.x86.avx512.vcomi.sd(<2 x double> %a0, <2 x double> %a1, i32 9, i32 4)
   ret i32 %res
 }
 
-declare i32 @llvm.x86.avx512.vcomi.sd(<2 x double>, <2 x double>, i32, i32) 
+declare i32 @llvm.x86.avx512.vcomi.sd(<2 x double>, <2 x double>, i32, i32)
 
 define i32 @test_x86_avx512_ucomi_ss_lt(<4 x float> %a0, <4 x float> %a1) {
-; CHECK-LABEL: test_x86_avx512_ucomi_ss_lt
-; CHECK: vucomiss %xmm1, %xmm0
-; CHECK-NEXT: sbbl %eax, %eax
-  %res = call i32 @llvm.x86.avx512.vcomi.ss(<4 x float> %a0, <4 x float> %a1, i32 9, i32 4) 
+; CHECK-LABEL: test_x86_avx512_ucomi_ss_lt:
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vucomiss %xmm1, %xmm0
+; CHECK-NEXT:    sbbl %eax, %eax
+; CHECK-NEXT:    andl $1, %eax
+; CHECK-NEXT:    retq
+  %res = call i32 @llvm.x86.avx512.vcomi.ss(<4 x float> %a0, <4 x float> %a1, i32 9, i32 4)
   ret i32 %res
 }
 
@@ -6238,21 +6265,32 @@
 
 define <4 x float>@test_int_x86_avx512_mask_move_ss_rrk(<4 x float> %x0, <4 x float> %x1, <4 x float> %x2, i8 %x3) {
 ; CHECK-LABEL: test_int_x86_avx512_mask_move_ss_rrk:
-; CHECK: vmovss  %xmm1, %xmm0, %xmm2 {%k1}
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    andl $1, %edi
+; CHECK-NEXT:    kmovw %edi, %k1
+; CHECK-NEXT:    vmovss %xmm1, %xmm0, %xmm2 {%k1}
+; CHECK-NEXT:    vmovaps %zmm2, %zmm0
+; CHECK-NEXT:    retq
   %res = call <4 x float> @llvm.x86.avx512.mask.move.ss(<4 x float> %x0, <4 x float> %x1, <4 x float> %x2, i8 %x3)
   ret <4 x float> %res
 }
 
 define <4 x float>@test_int_x86_avx512_mask_move_ss_rrkz(<4 x float> %x0, <4 x float> %x1, i8 %x2) {
 ; CHECK-LABEL: test_int_x86_avx512_mask_move_ss_rrkz:
-; CHECK: vmovss  %xmm1, %xmm0, %xmm0 {%k1} {z}
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    andl $1, %edi
+; CHECK-NEXT:    kmovw %edi, %k1
+; CHECK-NEXT:    vmovss %xmm1, %xmm0, %xmm0 {%k1} {z}
+; CHECK-NEXT:    retq
   %res = call <4 x float> @llvm.x86.avx512.mask.move.ss(<4 x float> %x0, <4 x float> %x1, <4 x float> zeroinitializer, i8 %x2)
   ret <4 x float> %res
 }
 
 define <4 x float>@test_int_x86_avx512_mask_move_ss_rr(<4 x float> %x0, <4 x float> %x1, i8 %x2) {
 ; CHECK-LABEL: test_int_x86_avx512_mask_move_ss_rr:
-; CHECK: vmovss %xmm1, %xmm0, %xmm0
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vmovss %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
   %res = call <4 x float> @llvm.x86.avx512.mask.move.ss(<4 x float> %x0, <4 x float> %x1, <4 x float> zeroinitializer, i8 -1)
   ret <4 x float> %res
 }
@@ -6260,21 +6298,32 @@
 declare <2 x double> @llvm.x86.avx512.mask.move.sd(<2 x double>, <2 x double>, <2 x double>, i8)
 define <2 x double>@test_int_x86_avx512_mask_move_sd_rr(<2 x double> %x0, <2 x double> %x1, i8 %x2) {
 ; CHECK-LABEL: test_int_x86_avx512_mask_move_sd_rr:
-; CHECK: vmovsd  %xmm1, %xmm0, %xmm0
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    vmovsd %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
   %res = call <2 x double> @llvm.x86.avx512.mask.move.sd(<2 x double> %x0, <2 x double> %x1, <2 x double> zeroinitializer, i8 -1)
   ret <2 x double> %res
 }
 
 define <2 x double>@test_int_x86_avx512_mask_move_sd_rrkz(<2 x double> %x0, <2 x double> %x1, i8 %x2) {
 ; CHECK-LABEL: test_int_x86_avx512_mask_move_sd_rrkz:
-; CHECK: vmovsd  %xmm1, %xmm0, %xmm0 {%k1} {z}
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    andl $1, %edi
+; CHECK-NEXT:    kmovw %edi, %k1
+; CHECK-NEXT:    vmovsd %xmm1, %xmm0, %xmm0 {%k1} {z}
+; CHECK-NEXT:    retq
   %res = call <2 x double> @llvm.x86.avx512.mask.move.sd(<2 x double> %x0, <2 x double> %x1, <2 x double> zeroinitializer, i8 %x2)
   ret <2 x double> %res
 }
 
 define <2 x double>@test_int_x86_avx512_mask_move_sd_rrk(<2 x double> %x0, <2 x double> %x1, <2 x double> %x2, i8 %x3) {
 ; CHECK-LABEL: test_int_x86_avx512_mask_move_sd_rrk:
-; CHECK: vmovsd  %xmm1, %xmm0, %xmm2 {%k1}
+; CHECK:       ## BB#0:
+; CHECK-NEXT:    andl $1, %edi
+; CHECK-NEXT:    kmovw %edi, %k1
+; CHECK-NEXT:    vmovsd %xmm1, %xmm0, %xmm2 {%k1}
+; CHECK-NEXT:    vmovaps %zmm2, %zmm0
+; CHECK-NEXT:    retq
   %res = call <2 x double> @llvm.x86.avx512.mask.move.sd(<2 x double> %x0, <2 x double> %x1, <2 x double> %x2, i8 %x3)
   ret <2 x double> %res
 }
Index: test/CodeGen/X86/avx512bw-intrinsics.ll
===================================================================
--- test/CodeGen/X86/avx512bw-intrinsics.ll
+++ test/CodeGen/X86/avx512bw-intrinsics.ll
@@ -2736,3 +2736,53 @@
   %res2 = add  <8 x i64> %res, %res1
   ret  <8 x i64> %res2
 }
+
+declare i32 @llvm.x86.avx512.kunpck.wd(i32, i32)
+
+define i32@test_int_x86_avx512_kunpck_wd(i32 %x0, i32 %x1) {
+; AVX512BW-LABEL: test_int_x86_avx512_kunpck_wd:
+; AVX512BW:       ## BB#0:
+; AVX512BW-NEXT:    kmovd %edi, %k0
+; AVX512BW-NEXT:    kmovd %esi, %k1
+; AVX512BW-NEXT:    kunpckwd %k1, %k0, %k0
+; AVX512BW-NEXT:    kmovd %k0, %eax
+; AVX512BW-NEXT:    retq
+;
+; AVX512F-32-LABEL: test_int_x86_avx512_kunpck_wd:
+; AVX512F-32:       # BB#0:
+; AVX512F-32-NEXT:    kmovd {{[0-9]+}}(%esp), %k0
+; AVX512F-32-NEXT:    kmovd {{[0-9]+}}(%esp), %k1
+; AVX512F-32-NEXT:    kunpckwd %k1, %k0, %k0
+; AVX512F-32-NEXT:    kmovd %k0, %eax
+; AVX512F-32-NEXT:    retl
+  %res = call i32 @llvm.x86.avx512.kunpck.wd(i32 %x0, i32 %x1)
+  ret i32 %res
+}
+
+declare i64 @llvm.x86.avx512.kunpck.dq(i64, i64)
+
+define i64@test_int_x86_avx512_kunpck_qd(i64 %x0, i64 %x1) {
+; AVX512BW-LABEL: test_int_x86_avx512_kunpck_qd:
+; AVX512BW:       ## BB#0:
+; AVX512BW-NEXT:    kmovq %rdi, %k0
+; AVX512BW-NEXT:    kmovq %rsi, %k1
+; AVX512BW-NEXT:    kunpckdq %k1, %k0, %k0
+; AVX512BW-NEXT:    kmovq %k0, %rax
+; AVX512BW-NEXT:    retq
+;
+; AVX512F-32-LABEL: test_int_x86_avx512_kunpck_qd:
+; AVX512F-32:       # BB#0:
+; AVX512F-32-NEXT:    subl $12, %esp
+; AVX512F-32-NEXT:  .Ltmp8:
+; AVX512F-32-NEXT:    .cfi_def_cfa_offset 16
+; AVX512F-32-NEXT:    kmovd {{[0-9]+}}(%esp), %k0
+; AVX512F-32-NEXT:    kmovd {{[0-9]+}}(%esp), %k1
+; AVX512F-32-NEXT:    kunpckdq %k0, %k1, %k0
+; AVX512F-32-NEXT:    kmovq %k0, (%esp)
+; AVX512F-32-NEXT:    movl (%esp), %eax
+; AVX512F-32-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; AVX512F-32-NEXT:    addl $12, %esp
+; AVX512F-32-NEXT:    retl
+  %res = call i64 @llvm.x86.avx512.kunpck.dq(i64 %x0, i64 %x1)
+  ret i64 %res
+}