Index: include/clang/Basic/BuiltinsX86.def
===================================================================
--- include/clang/Basic/BuiltinsX86.def
+++ include/clang/Basic/BuiltinsX86.def
@@ -1942,6 +1942,15 @@
 TARGET_BUILTIN(__builtin_ia32_pternlogq128_maskz, "V2LLiV2LLiV2LLiV2LLiIiUc","","avx512vl")
 TARGET_BUILTIN(__builtin_ia32_pternlogq256_mask, "V4LLiV4LLiV4LLiV4LLiIiUc","","avx512vl")
 TARGET_BUILTIN(__builtin_ia32_pternlogq256_maskz, "V4LLiV4LLiV4LLiV4LLiIiUc","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_cvtsd2ss_round_mask, "V4fV4fV4fV2dUcIi","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_cvtsi2sd64, "V2dV2dLLiIi","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_cvtsi2ss32, "V4fV4fiIi","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_cvtsi2ss64, "V4fV4fLLiIi","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_cvtss2sd_round_mask, "V2dV2dV2dV4fUcIi","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_cvtusi2sd32, "V2dV2dUi","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_cvtusi2sd64, "V2dV2dULLiIi","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_cvtusi2ss32, "V4fV4fUiIi","","avx512f")
+TARGET_BUILTIN(__builtin_ia32_cvtusi2ss64, "V4fV4fULLiIi","","avx512f")
 
 #undef BUILTIN
 #undef TARGET_BUILTIN
Index: lib/Headers/avx512fintrin.h
===================================================================
--- lib/Headers/avx512fintrin.h
+++ lib/Headers/avx512fintrin.h
@@ -5306,6 +5306,116 @@
               (__mmask8)( __U));\
 })
 
+#define _mm_cvt_roundsd_ss( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtsd2ss_round_mask ((__v4sf)( __A),\
+             (__v2df)( __B),\
+             (__v4sf) _mm_undefined_ps (),\
+             (__mmask8) -1,\
+             ( __R));\
+})
+
+#define _mm_mask_cvt_roundsd_ss( __W, __U, __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtsd2ss_round_mask ((__v4sf)( __A),\
+             (__v2df)( __B),\
+             (__v4sf) __W,\
+             (__mmask8) __U,\
+             ( __R));\
+})
+
+#define _mm_maskz_cvt_roundsd_ss( __W, __U, __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtsd2ss_round_mask ((__v4sf)( __A),\
+             (__v2df)( __B),\
+             (__v4sf) _mm_setzero_ps (),\
+             (__mmask8) __U,\
+             ( __R));\
+})
+
+#define _mm_cvt_roundi64_sd( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtsi2sd64 ((__v2df)( __A),( __B),( __R));\
+})
+
+#define _mm_cvt_roundsi64_sd( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtsi2sd64 ((__v2df)( __A),( __B),( __R));\
+})
+
+#define _mm_cvt_roundsi32_ss( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtsi2ss32 ((__v4sf)( __A),( __B),( __R));\
+})
+
+#define _mm_cvt_roundi32_ss( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtsi2ss32 ((__v4sf)( __A),( __B),( __R));\
+})
+
+#define _mm_cvt_roundsi64_ss( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtsi2ss64 ((__v4sf)( __A),( __B),( __R));\
+})
+
+#define _mm_cvt_roundi64_ss( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtsi2ss64 ((__v4sf)( __A),( __B),( __R));\
+})
+
+#define _mm_cvt_roundss_sd( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtss2sd_round_mask ((__v2df)( __A),\
+              (__v4sf)( __B),\
+              (__v2df) _mm_undefined_pd (),\
+              (__mmask8)-1,\
+              ( __R));\
+})
+
+#define _mm_mask_cvt_roundss_sd(__W, __U,__A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtss2sd_round_mask ((__v2df)( __A),\
+              (__v4sf)( __B),\
+              (__v2df) __W,\
+              (__mmask8) __U,\
+              ( __R));\
+})
+
+#define _mm_maskz_cvt_roundss_sd( __U,__A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtss2sd_round_mask ((__v2df)( __A),\
+              (__v4sf)( __B),\
+              (__v2df) _mm_setzero_pd(),\
+              (__mmask8) __U,\
+              ( __R));\
+})
+
+static __inline__ __m128d __DEFAULT_FN_ATTRS
+_mm_cvtu32_sd (__m128d __A, unsigned __B)
+{
+  return (__m128d) __builtin_ia32_cvtusi2sd32 ((__v2df) __A, __B);
+}
+
+#define _mm_cvt_roundu64_sd( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtusi2sd64 ((__v2df)( __A),( __B),( __R));\
+})
+
+static __inline__ __m128d __DEFAULT_FN_ATTRS
+_mm_cvtu64_sd (__m128d __A, unsigned long long __B)
+{
+  return (__m128d) __builtin_ia32_cvtusi2sd64 ((__v2df) __A, __B,
+                 _MM_FROUND_CUR_DIRECTION);
+}
+
+#define _mm_cvt_roundu32_ss( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtusi2ss32 ((__v4sf)( __A),( __B),( __R));\
+})
+
+static __inline__ __m128 __DEFAULT_FN_ATTRS
+_mm_cvtu32_ss (__m128 __A, unsigned __B)
+{
+  return (__m128) __builtin_ia32_cvtusi2ss32 ((__v4sf) __A, __B,
+                _MM_FROUND_CUR_DIRECTION);
+}
+
+#define _mm_cvt_roundu64_ss( __A, __B, __R) __extension__ ({ \
+__builtin_ia32_cvtusi2ss64 ((__v4sf)( __A),( __B),( __R));\
+})
+
+static __inline__ __m128 __DEFAULT_FN_ATTRS
+_mm_cvtu64_ss (__m128 __A, unsigned long long __B)
+{
+  return (__m128) __builtin_ia32_cvtusi2ss64 ((__v4sf) __A, __B,
+                _MM_FROUND_CUR_DIRECTION);
+}
 
 #undef __DEFAULT_FN_ATTRS
 
Index: test/CodeGen/avx512f-builtins.c
===================================================================
--- test/CodeGen/avx512f-builtins.c
+++ test/CodeGen/avx512f-builtins.c
@@ -3539,3 +3539,118 @@
   // CHECK: @llvm.x86.avx512.maskz.pternlog.q.512
   return _mm512_maskz_ternarylogic_epi64(__U, __A, __B, __C, 4); 
 }
+
+__m128 test_mm_cvt_roundsd_ss(__m128 __A, __m128d __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundsd_ss
+  // CHECK: @llvm.x86.avx512.mask.cvtsd2ss.round
+  return _mm_cvt_roundsd_ss(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128 test_mm_mask_cvt_roundsd_ss(__m128 __W, __mmask8 __U, __m128 __A, __m128d __B) {
+  // CHECK-LABEL: @test_mm_mask_cvt_roundsd_ss
+  // CHECK: @llvm.x86.avx512.mask.cvtsd2ss.round
+  return _mm_mask_cvt_roundsd_ss(__W, __U, __A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128 test_mm_maskz_cvt_roundsd_ss(__mmask8 __U, __m128 __A, __m128d __B) {
+  // CHECK-LABEL: @test_mm_maskz_cvt_roundsd_ss
+  // CHECK: @llvm.x86.avx512.mask.cvtsd2ss.round
+  return _mm_maskz_cvt_roundsd_ss(__U, __A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128d test_mm_cvt_roundi64_sd(__m128d __A, long long __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundi64_sd
+  // CHECK: @llvm.x86.avx512.cvtsi2sd64
+  return _mm_cvt_roundi64_sd(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128d test_mm_cvt_roundsi64_sd(__m128d __A, long long __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundsi64_sd
+  // CHECK: @llvm.x86.avx512.cvtsi2sd64
+  return _mm_cvt_roundsi64_sd(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128 test_mm_cvt_roundsi32_ss(__m128 __A, int __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundsi32_ss
+  // CHECK: @llvm.x86.avx512.cvtsi2ss32
+  return _mm_cvt_roundsi32_ss(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128 test_mm_cvt_roundi32_ss(__m128 __A, int __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundi32_ss
+  // CHECK: @llvm.x86.avx512.cvtsi2ss32
+  return _mm_cvt_roundi32_ss(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128 test_mm_cvt_roundsi64_ss(__m128 __A, long long __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundsi64_ss
+  // CHECK: @llvm.x86.avx512.cvtsi2ss64
+  return _mm_cvt_roundsi64_ss(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128 test_mm_cvt_roundi64_ss(__m128 __A, long long __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundi64_ss
+  // CHECK: @llvm.x86.avx512.cvtsi2ss64
+  return _mm_cvt_roundi64_ss(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128d test_mm_cvt_roundss_sd(__m128d __A, __m128 __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundss_sd
+  // CHECK: @llvm.x86.avx512.mask.cvtss2sd.round
+  return _mm_cvt_roundss_sd(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128d test_mm_mask_cvt_roundss_sd(__m128d __W, __mmask8 __U, __m128d __A, __m128 __B) {
+  // CHECK-LABEL: @test_mm_mask_cvt_roundss_sd
+  // CHECK: @llvm.x86.avx512.mask.cvtss2sd.round
+  return _mm_mask_cvt_roundss_sd(__W, __U, __A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128d test_mm_maskz_cvt_roundss_sd( __mmask8 __U, __m128d __A, __m128 __B) {
+  // CHECK-LABEL: @test_mm_maskz_cvt_roundss_sd
+  // CHECK: @llvm.x86.avx512.mask.cvtss2sd.round
+  return _mm_maskz_cvt_roundss_sd( __U, __A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128d test_mm_cvtu32_sd(__m128d __A, unsigned __B) {
+  // CHECK-LABEL: @test_mm_cvtu32_sd
+  // CHECK: @llvm.x86.avx512.cvtusi2sd
+  return _mm_cvtu32_sd(__A, __B); 
+}
+
+__m128d test_mm_cvt_roundu64_sd(__m128d __A, unsigned long long __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundu64_sd
+  // CHECK: @llvm.x86.avx512.cvtusi642sd
+  return _mm_cvt_roundu64_sd(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128d test_mm_cvtu64_sd(__m128d __A, unsigned long long __B) {
+  // CHECK-LABEL: @test_mm_cvtu64_sd
+  // CHECK: @llvm.x86.avx512.cvtusi642sd
+  return _mm_cvtu64_sd(__A, __B); 
+}
+
+__m128 test_mm_cvt_roundu32_ss(__m128 __A, unsigned __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundu32_ss
+  // CHECK: @llvm.x86.avx512.cvtusi2ss
+  return _mm_cvt_roundu32_ss(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128 test_mm_cvtu32_ss(__m128 __A, unsigned __B) {
+  // CHECK-LABEL: @test_mm_cvtu32_ss
+  // CHECK: @llvm.x86.avx512.cvtusi2ss
+  return _mm_cvtu32_ss(__A, __B); 
+}
+
+__m128 test_mm_cvt_roundu64_ss(__m128 __A, unsigned long long __B) {
+  // CHECK-LABEL: @test_mm_cvt_roundu64_ss
+  // CHECK: @llvm.x86.avx512.cvtusi642ss
+    return _mm_cvt_roundu64_ss(__A, __B, _MM_FROUND_CUR_DIRECTION); 
+}
+
+__m128 test_mm_cvtu64_ss(__m128 __A, unsigned long long __B) {
+  // CHECK-LABEL: @test_mm_cvtu64_ss
+  // CHECK: @llvm.x86.avx512.cvtusi642ss
+  return _mm_cvtu64_ss(__A, __B); 
+}
+