Index: include/clang/Basic/BuiltinsX86.def
===================================================================
--- include/clang/Basic/BuiltinsX86.def
+++ include/clang/Basic/BuiltinsX86.def
@@ -1962,6 +1962,12 @@
 TARGET_BUILTIN(__builtin_ia32_rsqrt14pd256_mask, "V4dV4dV4dUc","","avx512vl")
 TARGET_BUILTIN(__builtin_ia32_rsqrt14ps128_mask, "V4fV4fV4fUc","","avx512vl")
 TARGET_BUILTIN(__builtin_ia32_rsqrt14ps256_mask, "V8fV8fV8fUc","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_movshdup512_mask, "V16fV16fV16fUs","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_movsldup512_mask, "V16fV16fV16fUs","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_movshdup128_mask, "V4fV4fV4fUc","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_movshdup256_mask, "V8fV8fV8fUc","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_movsldup128_mask, "V4fV4fV4fUc","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_movsldup256_mask, "V8fV8fV8fUc","","avx512vl")
 
 #undef BUILTIN
 #undef TARGET_BUILTIN
Index: lib/Headers/avx512fintrin.h
===================================================================
--- lib/Headers/avx512fintrin.h
+++ lib/Headers/avx512fintrin.h
@@ -5619,6 +5619,58 @@
                  __R);\
 })
 
+static __inline__ __m512 __DEFAULT_FN_ATTRS
+_mm512_movehdup_ps (__m512 __A)
+{
+  return (__m512) __builtin_ia32_movshdup512_mask ((__v16sf) __A,
+               (__v16sf)
+               _mm512_undefined_ps (),
+               (__mmask16) -1);
+}
+
+static __inline__ __m512 __DEFAULT_FN_ATTRS
+_mm512_mask_movehdup_ps (__m512 __W, __mmask16 __U, __m512 __A)
+{
+  return (__m512) __builtin_ia32_movshdup512_mask ((__v16sf) __A,
+               (__v16sf) __W,
+               (__mmask16) __U);
+}
+
+static __inline__ __m512 __DEFAULT_FN_ATTRS
+_mm512_maskz_movehdup_ps (__mmask16 __U, __m512 __A)
+{
+  return (__m512) __builtin_ia32_movshdup512_mask ((__v16sf) __A,
+               (__v16sf)
+               _mm512_setzero_ps (),
+               (__mmask16) __U);
+}
+
+static __inline__ __m512 __DEFAULT_FN_ATTRS
+_mm512_moveldup_ps (__m512 __A)
+{
+  return (__m512) __builtin_ia32_movsldup512_mask ((__v16sf) __A,
+               (__v16sf)
+               _mm512_undefined_ps (),
+               (__mmask16) -1);
+}
+
+static __inline__ __m512 __DEFAULT_FN_ATTRS
+_mm512_mask_moveldup_ps (__m512 __W, __mmask16 __U, __m512 __A)
+{
+  return (__m512) __builtin_ia32_movsldup512_mask ((__v16sf) __A,
+               (__v16sf) __W,
+               (__mmask16) __U);
+}
+
+static __inline__ __m512 __DEFAULT_FN_ATTRS
+_mm512_maskz_moveldup_ps (__mmask16 __U, __m512 __A)
+{
+  return (__m512) __builtin_ia32_movsldup512_mask ((__v16sf) __A,
+               (__v16sf)
+               _mm512_setzero_ps (),
+               (__mmask16) __U);
+}
+
 #undef __DEFAULT_FN_ATTRS
 
 #endif // __AVX512FINTRIN_H
Index: lib/Headers/avx512vlintrin.h
===================================================================
--- lib/Headers/avx512vlintrin.h
+++ lib/Headers/avx512vlintrin.h
@@ -7765,6 +7765,74 @@
                 (__mmask8) __U);
 }
 
+static __inline__ __m128 __DEFAULT_FN_ATTRS
+_mm_mask_movehdup_ps (__m128 __W, __mmask8 __U, __m128 __A)
+{
+  return (__m128) __builtin_ia32_movshdup128_mask ((__v4sf) __A,
+               (__v4sf) __W,
+               (__mmask8) __U);
+}
+
+static __inline__ __m128 __DEFAULT_FN_ATTRS
+_mm_maskz_movehdup_ps (__mmask8 __U, __m128 __A)
+{
+  return (__m128) __builtin_ia32_movshdup128_mask ((__v4sf) __A,
+               (__v4sf)
+               _mm_setzero_ps (),
+               (__mmask8) __U);
+}
+
+static __inline__ __m256 __DEFAULT_FN_ATTRS
+_mm256_mask_movehdup_ps (__m256 __W, __mmask8 __U, __m256 __A)
+{
+  return (__m256) __builtin_ia32_movshdup256_mask ((__v8sf) __A,
+               (__v8sf) __W,
+               (__mmask8) __U);
+}
+
+static __inline__ __m256 __DEFAULT_FN_ATTRS
+_mm256_maskz_movehdup_ps (__mmask8 __U, __m256 __A)
+{
+  return (__m256) __builtin_ia32_movshdup256_mask ((__v8sf) __A,
+               (__v8sf)
+               _mm256_setzero_ps (),
+               (__mmask8) __U);
+}
+
+static __inline__ __m128 __DEFAULT_FN_ATTRS
+_mm_mask_moveldup_ps (__m128 __W, __mmask8 __U, __m128 __A)
+{
+  return (__m128) __builtin_ia32_movsldup128_mask ((__v4sf) __A,
+               (__v4sf) __W,
+               (__mmask8) __U);
+}
+
+static __inline__ __m128 __DEFAULT_FN_ATTRS
+_mm_maskz_moveldup_ps (__mmask8 __U, __m128 __A)
+{
+  return (__m128) __builtin_ia32_movsldup128_mask ((__v4sf) __A,
+               (__v4sf)
+               _mm_setzero_ps (),
+               (__mmask8) __U);
+}
+
+static __inline__ __m256 __DEFAULT_FN_ATTRS
+_mm256_mask_moveldup_ps (__m256 __W, __mmask8 __U, __m256 __A)
+{
+  return (__m256) __builtin_ia32_movsldup256_mask ((__v8sf) __A,
+               (__v8sf) __W,
+               (__mmask8) __U);
+}
+
+static __inline__ __m256 __DEFAULT_FN_ATTRS
+_mm256_maskz_moveldup_ps (__mmask8 __U, __m256 __A)
+{
+  return (__m256) __builtin_ia32_movsldup256_mask ((__v8sf) __A,
+               (__v8sf)
+               _mm256_setzero_ps (),
+               (__mmask8) __U);
+}
+
 #undef __DEFAULT_FN_ATTRS
 #undef __DEFAULT_FN_ATTRS_BOTH
 
Index: test/CodeGen/avx512f-builtins.c
===================================================================
--- test/CodeGen/avx512f-builtins.c
+++ test/CodeGen/avx512f-builtins.c
@@ -3700,4 +3700,38 @@
     return _mm_maskz_sqrt_round_ss(__U,__A,__B,_MM_FROUND_CUR_DIRECTION);
 }
 
+__m512 test_mm512_movehdup_ps(__m512 __A) {
+  // CHECK-LABEL: @test_mm512_movehdup_ps
+  // CHECK: @llvm.x86.avx512.mask.movshdup.512
+  return _mm512_movehdup_ps(__A); 
+}
+
+__m512 test_mm512_mask_movehdup_ps(__m512 __W, __mmask16 __U, __m512 __A) {
+  // CHECK-LABEL: @test_mm512_mask_movehdup_ps
+  // CHECK: @llvm.x86.avx512.mask.movshdup.512
+  return _mm512_mask_movehdup_ps(__W, __U, __A); 
+}
+
+__m512 test_mm512_maskz_movehdup_ps(__mmask16 __U, __m512 __A) {
+  // CHECK-LABEL: @test_mm512_maskz_movehdup_ps
+  // CHECK: @llvm.x86.avx512.mask.movshdup.512
+  return _mm512_maskz_movehdup_ps(__U, __A); 
+}
 
+__m512 test_mm512_moveldup_ps(__m512 __A) {
+  // CHECK-LABEL: @test_mm512_moveldup_ps
+  // CHECK: @llvm.x86.avx512.mask.movsldup.512
+  return _mm512_moveldup_ps(__A); 
+}
+
+__m512 test_mm512_mask_moveldup_ps(__m512 __W, __mmask16 __U, __m512 __A) {
+  // CHECK-LABEL: @test_mm512_mask_moveldup_ps
+  // CHECK: @llvm.x86.avx512.mask.movsldup.512
+  return _mm512_mask_moveldup_ps(__W, __U, __A); 
+}
+
+__m512 test_mm512_maskz_moveldup_ps(__mmask16 __U, __m512 __A) {
+  // CHECK-LABEL: @test_mm512_maskz_moveldup_ps
+  // CHECK: @llvm.x86.avx512.mask.movsldup.512
+  return _mm512_maskz_moveldup_ps(__U, __A); 
+}
Index: test/CodeGen/avx512vl-builtins.c
===================================================================
--- test/CodeGen/avx512vl-builtins.c
+++ test/CodeGen/avx512vl-builtins.c
@@ -5278,3 +5278,51 @@
   // CHECK: @llvm.x86.avx512.rsqrt14.ps.256
   return _mm256_maskz_rsqrt14_ps(__U, __A); 
 }
+
+__m128 test_mm_mask_movehdup_ps(__m128 __W, __mmask8 __U, __m128 __A) {
+  // CHECK-LABEL: @test_mm_mask_movehdup_ps
+  // CHECK: @llvm.x86.avx512.mask.movshdup.128
+  return _mm_mask_movehdup_ps(__W, __U, __A); 
+}
+
+__m128 test_mm_maskz_movehdup_ps(__mmask8 __U, __m128 __A) {
+  // CHECK-LABEL: @test_mm_maskz_movehdup_ps
+  // CHECK: @llvm.x86.avx512.mask.movshdup.128
+  return _mm_maskz_movehdup_ps(__U, __A); 
+}
+
+__m256 test_mm256_mask_movehdup_ps(__m256 __W, __mmask8 __U, __m256 __A) {
+  // CHECK-LABEL: @test_mm256_mask_movehdup_ps
+  // CHECK: @llvm.x86.avx512.mask.movshdup.256
+  return _mm256_mask_movehdup_ps(__W, __U, __A); 
+}
+
+__m256 test_mm256_maskz_movehdup_ps(__mmask8 __U, __m256 __A) {
+  // CHECK-LABEL: @test_mm256_maskz_movehdup_ps
+  // CHECK: @llvm.x86.avx512.mask.movshdup.256
+  return _mm256_maskz_movehdup_ps(__U, __A); 
+}
+
+__m128 test_mm_mask_moveldup_ps(__m128 __W, __mmask8 __U, __m128 __A) {
+  // CHECK-LABEL: @test_mm_mask_moveldup_ps
+  // CHECK: @llvm.x86.avx512.mask.movsldup.128
+  return _mm_mask_moveldup_ps(__W, __U, __A); 
+}
+
+__m128 test_mm_maskz_moveldup_ps(__mmask8 __U, __m128 __A) {
+  // CHECK-LABEL: @test_mm_maskz_moveldup_ps
+  // CHECK: @llvm.x86.avx512.mask.movsldup.128
+  return _mm_maskz_moveldup_ps(__U, __A); 
+}
+
+__m256 test_mm256_mask_moveldup_ps(__m256 __W, __mmask8 __U, __m256 __A) {
+  // CHECK-LABEL: @test_mm256_mask_moveldup_ps
+  // CHECK: @llvm.x86.avx512.mask.movsldup.256
+  return _mm256_mask_moveldup_ps(__W, __U, __A); 
+}
+
+__m256 test_mm256_maskz_moveldup_ps(__mmask8 __U, __m256 __A) {
+  // CHECK-LABEL: @test_mm256_maskz_moveldup_ps
+  // CHECK: @llvm.x86.avx512.mask.movsldup.256
+  return _mm256_maskz_moveldup_ps(__U, __A); 
+}