Index: include/clang/Basic/BuiltinsX86.def
===================================================================
--- include/clang/Basic/BuiltinsX86.def
+++ include/clang/Basic/BuiltinsX86.def
@@ -2232,6 +2232,8 @@
 TARGET_BUILTIN(__builtin_ia32_movapd256_mask, "V4dV4dV4dUc","","avx512vl")
 TARGET_BUILTIN(__builtin_ia32_movaps128_mask, "V4fV4fV4fUc","","avx512vl")
 TARGET_BUILTIN(__builtin_ia32_movaps256_mask, "V8fV8fV8fUc","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_movss_mask, "V4fV4fV4fV4fUc","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_movsd_mask, "V2dV2dV2dV2dUc","","avx512f")
 TARGET_BUILTIN(__builtin_ia32_compressstoredf512_mask, "vV8d*V8dUc","","avx512f")
 TARGET_BUILTIN(__builtin_ia32_compressstoredi512_mask, "vV8LLi*V8LLiUc","","avx512f")
 TARGET_BUILTIN(__builtin_ia32_compressstoresf512_mask, "vV16f*V16fUs","","avx512f")
Index: lib/Headers/avx512fintrin.h
===================================================================
--- lib/Headers/avx512fintrin.h
+++ lib/Headers/avx512fintrin.h
@@ -9118,6 +9118,40 @@
                (__mmask16) __U);
 }
 
+static __inline__ __m128 __DEFAULT_FN_ATTRS
+_mm_mask_move_ss (__m128 __W, __mmask8 __U, __m128 __A, __m128 __B)
+{
+  return (__m128) __builtin_ia32_movss_mask ((__v4sf) __A, (__v4sf) __B,
+               (__v4sf) __W,
+               (__mmask8) __U);
+}
+
+static __inline__ __m128 __DEFAULT_FN_ATTRS
+_mm_maskz_move_ss (__mmask8 __U, __m128 __A, __m128 __B)
+{
+  return (__m128) __builtin_ia32_movss_mask ((__v4sf) __A, (__v4sf) __B,
+               (__v4sf)
+               _mm_setzero_si128(),
+               (__mmask8) __U);
+}
+
+static __inline__ __m128d __DEFAULT_FN_ATTRS
+_mm_mask_move_sd (__m128d __W, __mmask8 __U, __m128d __A, __m128d __B)
+{
+  return (__m128d) __builtin_ia32_movsd_mask ((__v2df) __A, (__v2df) __B,
+               (__v2df) __W,
+               (__mmask8) __U);
+}
+
+static __inline__ __m128 __DEFAULT_FN_ATTRS
+_mm_maskz_move_sd (__mmask8 __U, __m128d __A, __m128d __B)
+{
+  return (__m128d) __builtin_ia32_movsd_mask ((__v2df) __A, (__v2df) __B,
+               (__v2di)
+               _mm_setzero_pd (),
+               (__mmask8) __U);
+}
+
 #define _mm512_shuffle_epi32(A, I) __extension__ ({ \
   (__m512i)__builtin_ia32_pshufd512_mask((__v16si)(__m512i)(A), (int)(I), \
                                          (__v16si)_mm512_undefined_epi32(), \
Index: test/CodeGen/avx512f-builtins.c
===================================================================
--- test/CodeGen/avx512f-builtins.c
+++ test/CodeGen/avx512f-builtins.c
@@ -7433,4 +7433,32 @@
   // CHECK-LABEL: @test_mm512_setzero_pd
   // CHECK: zeroinitializer
   return _mm512_setzero_pd();
-}
\ No newline at end of file
+}
+
+__m128 test_mm_mask_move_ss (__m128 __W, __mmask8 __U, __m128 __A, __m128 __B)
+{
+  // CHECK-LABEL: @test_mm_mask_move_ss
+  // CHECK: @llvm.x86.avx512.mask.move.ss
+  return _mm_mask_move_ss ( __W,  __U,  __A,  __B);
+}
+
+__m128 test_mm_maskz_move_ss (__mmask8 __U, __m128 __A, __m128 __B)
+{
+  // CHECK-LABEL: @test_mm_maskz_move_ss
+  // CHECK: @llvm.x86.avx512.mask.move.ss
+  return _mm_maskz_move_ss (__U, __A, __B);
+}
+
+__m128d test_mm_mask_move_sd (__m128 __W, __mmask8 __U, __m128d __A, __m128d __B)
+{
+  // CHECK-LABEL: @test_mm_mask_move_sd
+  // CHECK: @llvm.x86.avx512.mask.move.sd
+  return _mm_mask_move_sd ( __W,  __U,  __A,  __B);
+}
+
+__m128d test_mm_maskz_move_sd (__mmask8 __U, __m128d __A, __m128d __B)
+{
+  // CHECK-LABEL: @test_mm_maskz_move_sd
+  // CHECK: @llvm.x86.avx512.mask.move.sd
+  return _mm_maskz_move_sd (__U, __A, __B);
+}