Index: ../llvmTmp/lib/Target/X86/X86InstrAVX512.td
===================================================================
--- ../llvmTmp/lib/Target/X86/X86InstrAVX512.td
+++ ../llvmTmp/lib/Target/X86/X86InstrAVX512.td
@@ -2884,10 +2884,22 @@
               !strconcat(asm,
                 "\t{$src3, $src2, $dst {${mask}}|$dst {${mask}}, $src2, $src3}"),
               [], IIC_SSE_MOV_S_RR>, EVEX_4V, VEX_LIG, EVEX_K;
+  def rrkz : SI<0x10, MRMSrcReg, (outs VR128X:$dst),
+              (ins VK1WM:$mask, RC:$src2, RC:$src3),
+              !strconcat(asm,
+                "\t{$src3, $src2, $dst {${mask}} {z}|$dst {${mask}} {z}, $src2, $src3}"),
+              [], IIC_SSE_MOV_S_RR>, EVEX_4V, VEX_LIG, EVEX_KZ;
   def rm : SI<0x10, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src),
               !strconcat(asm, "\t{$src, $dst|$dst, $src}"),
               [(set RC:$dst, (mem_pat addr:$src))], IIC_SSE_MOV_S_RM>,
               EVEX, VEX_LIG;
+  let Constraints = "$src0 = $dst" in 
+  def rmk : SI<0x10, MRMSrcMem, (outs RC:$dst), (ins RC:$src0, VK1WM:$mask, x86memop:$src),
+              !strconcat(asm, "\t{$src, $dst {${mask}}|$dst {${mask}}, $src}"),
+              [], IIC_SSE_MOV_S_RM>, EVEX, VEX_LIG, EVEX_K;
+  def rmkz : SI<0x10, MRMSrcMem, (outs RC:$dst), (ins VK1WM:$mask, x86memop:$src),
+              !strconcat(asm, "\t{$src, $dst {${mask}} {z}|$dst {${mask}} {z}, $src}"),
+              [], IIC_SSE_MOV_S_RM>, EVEX, VEX_LIG, EVEX_KZ;
   let mayStore = 1 in {
   def mr: SI<0x11, MRMDestMem, (outs), (ins x86memop:$dst, RC:$src),
              !strconcat(asm, "\t{$src, $dst|$dst, $src}"),
Index: ../llvmTmp/test/MC/X86/avx512-encodings.s
===================================================================
--- ../llvmTmp/test/MC/X86/avx512-encodings.s
+++ ../llvmTmp/test/MC/X86/avx512-encodings.s
@@ -18489,3 +18489,58 @@
 // CHECK: encoding: [0x62,0x61,0xfd,0x08,0x17,0x8a,0xf8,0xfb,0xff,0xff]
           vmovhpd	%xmm25, -1032(%rdx)     
 
+// CHECK: vmovsd (%rcx), %xmm25 {%k3}
+// CHECK:  encoding: [0x62,0x61,0xff,0x0b,0x10,0x09]
+          vmovsd (%rcx), %xmm25 {%k3}
+
+// CHECK: vmovsd (%rcx), %xmm25 {%k3} {z}
+// CHECK:  encoding: [0x62,0x61,0xff,0x8b,0x10,0x09]
+          vmovsd (%rcx), %xmm25 {%k3} {z}
+
+// CHECK: vmovsd %xmm19, %xmm3, %xmm27 {%k3} {z}
+// CHECK:  encoding: [0x62,0x21,0xe7,0x8b,0x10,0xdb]
+          vmovsd %xmm19, %xmm3, %xmm27 {%k3} {z}
+
+// CHECK: vmovss (%rcx), %xmm2 {%k4}
+// CHECK:  encoding: [0x62,0xf1,0x7e,0x0c,0x10,0x11]
+          vmovss (%rcx), %xmm2 {%k4}
+
+// CHECK: vmovss (%rcx), %xmm2 {%k4} {z}
+// CHECK:  encoding: [0x62,0xf1,0x7e,0x8c,0x10,0x11]
+          vmovss (%rcx), %xmm2 {%k4} {z}
+
+// CHECK: vmovss %xmm26, %xmm9, %xmm28 {%k4} {z}
+// CHECK:  encoding: [0x62,0x01,0x36,0x8c,0x10,0xe2]
+          vmovss %xmm26, %xmm9, %xmm28 {%k4} {z}
+
+// CHECK: vmovsd %xmm15, %xmm22, %xmm21 {%k7} {z}
+// CHECK:  encoding: [0x62,0xc1,0xcf,0x87,0x10,0xef]
+          vmovsd %xmm15, %xmm22, %xmm21 {%k7} {z}
+
+// CHECK: vmovsd %xmm8, %xmm13, %xmm3 {%k5} {z}
+// CHECK:  encoding: [0x62,0xd1,0x97,0x8d,0x10,0xd8]
+          vmovsd %xmm8, %xmm13, %xmm3 {%k5} {z}
+
+// CHECK: vmovss %xmm2, %xmm27, %xmm17 {%k2} {z}
+// CHECK:  encoding: [0x62,0xe1,0x26,0x82,0x10,0xca]
+          vmovss %xmm2, %xmm27, %xmm17 {%k2} {z}
+
+// CHECK: vmovss %xmm23, %xmm19, %xmm10 {%k3} {z}
+// CHECK:  encoding: [0x62,0x31,0x66,0x83,0x10,0xd7]
+          vmovss %xmm23, %xmm19, %xmm10 {%k3} {z}
+
+// CHECK: vmovsd %xmm4, %xmm15, %xmm4 {%k6} {z}
+// CHECK:  encoding: [0x62,0xf1,0x87,0x8e,0x10,0xe4]
+          vmovsd %xmm4, %xmm15, %xmm4 {%k6} {z}
+
+// CHECK: vmovsd %xmm14, %xmm2, %xmm20 {%k7} {z}
+// CHECK:  encoding: [0x62,0xc1,0xef,0x8f,0x10,0xe6]
+          vmovsd %xmm14, %xmm2, %xmm20 {%k7} {z}
+
+// CHECK: vmovss %xmm19, %xmm11, %xmm21 {%k3} {z}
+// CHECK:  encoding: [0x62,0xa1,0x26,0x8b,0x10,0xeb]
+          vmovss %xmm19, %xmm11, %xmm21 {%k3} {z}
+
+// CHECK: vmovss %xmm24, %xmm27, %xmm15 {%k2} {z}
+// CHECK:  encoding: [0x62,0x11,0x26,0x82,0x10,0xf8]
+          vmovss %xmm24, %xmm27, %xmm15 {%k2} {z}
\ No newline at end of file