Index: include/clang/Basic/BuiltinsX86.def
===================================================================
--- include/clang/Basic/BuiltinsX86.def
+++ include/clang/Basic/BuiltinsX86.def
@@ -1059,12 +1059,28 @@
 TARGET_BUILTIN(__builtin_ia32_extractf64x4_mask, "V4dV8dIiV4dUc", "", "avx512f")
 TARGET_BUILTIN(__builtin_ia32_extractf32x4_mask, "V4fV16fIiV4fUc", "", "avx512f")
 
+TARGET_BUILTIN(__builtin_ia32_gather3div2df, "V2dV2dvC*V2LLiUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3div2di, "V4iV2LLivC*V2LLiUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3div4df, "V4dV4dvC*V4LLiUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3div4di, "V8iV4LLivC*V4LLiUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3div4sf, "V4fV4fvC*V2LLiUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3div4si, "V4iV4ivC*V2LLiUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3div8sf, "V4fV4fvC*V4LLiUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3div8si, "V4iV4ivC*V4LLiUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3siv2df, "V2dV2dvC*V4iUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3siv2di, "V4iV2LLivC*V4iUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3siv4df, "V4dV4dvC*V4iUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3siv4di, "V8iV4LLivC*V4iUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3siv4sf, "V4fV4fvC*V4iUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3siv4si, "V4iV4ivC*V4iUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3siv8sf, "V8fV8fvC*V8iUci","","avx512vl")
+TARGET_BUILTIN(__builtin_ia32_gather3siv8si, "V8iV8ivC*V8iUci","","avx512vl")
 TARGET_BUILTIN(__builtin_ia32_gathersiv8df, "V8dV8dvC*V8iUcIi", "", "avx512f")
-TARGET_BUILTIN(__builtin_ia32_gathersiv16sf, "V16fV16fvC*UsIi", "", "avx512f")
+TARGET_BUILTIN(__builtin_ia32_gathersiv16sf, "V16fV16fvC*V16fUsIi", "", "avx512f")
 TARGET_BUILTIN(__builtin_ia32_gatherdiv8df, "V8dV8dvC*V8LLiUcIi", "", "avx512f")
 TARGET_BUILTIN(__builtin_ia32_gatherdiv16sf, "V8fV8fvC*V8LLiUcIi", "", "avx512f")
 TARGET_BUILTIN(__builtin_ia32_gathersiv8di, "V8LLiV8LLivC*V8iUcIi", "", "avx512f")
-TARGET_BUILTIN(__builtin_ia32_gathersiv16si, "V16iV16ivC*UsIi", "", "avx512f")
+TARGET_BUILTIN(__builtin_ia32_gathersiv16si, "V16iV16ivC*V16iUsIi", "", "avx512f")
 TARGET_BUILTIN(__builtin_ia32_gatherdiv8di, "V8LLiV8LLivC*V8LLiUcIi", "", "avx512f")
 TARGET_BUILTIN(__builtin_ia32_gatherdiv16si, "V8iV8ivC*V8LLiUcIi", "", "avx512f")
 TARGET_BUILTIN(__builtin_ia32_scattersiv8df, "vv*UcV8iV8dIi", "", "avx512f")
Index: lib/Headers/CMakeLists.txt
===================================================================
--- lib/Headers/CMakeLists.txt
+++ lib/Headers/CMakeLists.txt
@@ -8,6 +8,7 @@
   avx512cdintrin.h
   avx512erintrin.h
   avx512fintrin.h
+  avx512pfintrin.h
   avx512vlbwintrin.h
   avx512vlintrin.h
   avx512dqintrin.h
Index: lib/Headers/avx512fintrin.h
===================================================================
--- lib/Headers/avx512fintrin.h
+++ lib/Headers/avx512fintrin.h
@@ -6321,6 +6321,87 @@
                _MM_FROUND_CUR_DIRECTION);
 }
 
+#define _mm512_i64gather_ps( __index, __addr, __scale) __extension__ ({ \
+__builtin_ia32_gatherdiv16sf ((__v8sf) _mm256_undefined_ps (),\
+                              __addr, (__v8di) __index, (__mmask8) -1, __scale);\
+})
+
+#define _mm512_mask_i64gather_ps( __v1_old, __mask, __index,\
+                                  __addr, __scale) __extension__({\
+__builtin_ia32_gatherdiv16sf ((__v8sf) __v1_old,\
+                              __addr,(__v8di) __index, __mask, __scale);\
+})
+
+#define _mm512_i64gather_epi32(__index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gatherdiv16si ((__v8si) _mm256_undefined_ps (),\
+                              __addr, (__v8di) __index, (__mmask8) -1 , __scale);\
+})
+
+#define _mm512_mask_i64gather_epi32( __v1_old,  __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gatherdiv16si ((__v8si) __v1_old,\
+                              __addr, (__v8di) __index, __mask , __scale);\
+})
+
+#define _mm512_i64gather_pd(__index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gatherdiv8df ((__v8df) _mm512_undefined_pd(),\
+                              __addr, (__v8di) __index, (__mmask8) -1 , __scale);\
+})
+
+#define _mm512_mask_i64gather_pd( __v1_old,  __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gatherdiv8df ((__v8df) __v1_old,\
+                              __addr, (__v8di) __index, __mask , __scale);\
+})
+
+#define _mm512_i64gather_epi64(__index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gatherdiv8di ((__v8di) _mm512_undefined_pd(),\
+                              __addr, (__v8di) __index, (__mmask8) -1 , __scale);\
+})
+
+#define _mm512_mask_i64gather_epi64( __v1_old,  __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gatherdiv8di ((__v8di) __v1_old,\
+                              __addr, (__v8di) __index, __mask , __scale);\
+})
+
+#define _mm512_i32gather_ps(__index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gathersiv16sf ((__v16sf) _mm512_undefined_ps(),\
+                              __addr, (__v16si) __index, (__mmask8) -1 , __scale);\
+})
+
+#define _mm512_mask_i32gather_ps( __v1_old,  __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gathersiv16sf ((__v16sf) __v1_old,\
+                              __addr, (__v16si) __index, __mask , __scale);\
+})
+
+#define _mm512_i32gather_epi32(__index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gathersiv16si ((__v16sf) _mm512_undefined_epi32(),\
+                              __addr, (__v16si) __index, (__mmask8) -1 , __scale);\
+})
+
+#define _mm512_mask_i32gather_epi32( __v1_old,  __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gathersiv16si ((__v16sf) __v1_old,\
+                              __addr, (__v16si) __index, __mask , __scale);\
+})
+
+#define _mm512_i32gather_pd(__index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gathersiv8df ((__v8df) _mm512_undefined_pd(),\
+                              __addr, (__v8si) __index, (__mmask8) -1 , __scale);\
+})
+
+#define _mm512_mask_i32gather_pd( __v1_old,  __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gathersiv8df ((__v8df) __v1_old,\
+                              __addr, (__v8si) __index, __mask , __scale);\
+})
+
+#define _mm512_i32gather_epi64(__index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gathersiv8di ((__v8di) _mm512_undefined_epi32(),\
+                              __addr, (__v8si) __index, (__mmask8) -1 , __scale);\
+})
+
+#define _mm512_mask_i32gather_epi64( __v1_old,  __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gathersiv8di ((__v8di) __v1_old,\
+                              __addr, (__v8si) __index, __mask , __scale);\
+})
+
 #undef __DEFAULT_FN_ATTRS
 
 #endif // __AVX512FINTRIN_H
Index: lib/Headers/avx512pfintrin.h
===================================================================
--- lib/Headers/avx512pfintrin.h
+++ lib/Headers/avx512pfintrin.h
@@ -0,0 +1,53 @@
+/*===------------- avx512pfintrin.h - PF intrinsics ------------------===
+ *
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ *===-----------------------------------------------------------------------===
+ */
+#ifndef __IMMINTRIN_H
+#error "Never use <avx512pfintrin.h> directly; include <immintrin.h> instead."
+#endif
+
+#ifndef __AVX512PFINTRIN_H
+#define __AVX512PFINTRIN_H
+
+/* Define the default attributes for the functions in this file. */
+#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("avx512pf")))
+
+#define _mm512_mask_prefetch_i32gather_pd( index,  mask, addr,  scale, hint) __extension__ ({\
+__builtin_ia32_gatherpfdpd (mask, (__v8si) index, (long long const *) addr, scale, hint);\
+})
+
+#define _mm512_mask_prefetch_i32gather_ps( index,  mask, addr, scale,  hint) ({\
+__builtin_ia32_gatherpfdps (mask, (__v16si) index, (int const *) addr, scale, hint);\
+})
+
+#define _mm512_mask_prefetch_i64gather_pd( index,  mask, addr,  scale, hint) __extension__ ({\
+__builtin_ia32_gatherpfqpd (mask, (__v8di) index, (long long const *) addr, scale, hint);\
+})
+
+#define _mm512_mask_prefetch_i64gather_ps( index,  mask, addr, scale,  hint) ({\
+__builtin_ia32_gatherpfqps (mask, (__v8di) index, (int const *) addr, scale, hint);\
+})
+
+
+#undef __DEFAULT_FN_ATTRS
+
+#endif
Index: lib/Headers/avx512vlintrin.h
===================================================================
--- lib/Headers/avx512vlintrin.h
+++ lib/Headers/avx512vlintrin.h
@@ -8978,6 +8978,86 @@
                 (__mmask8)( __U));\
 })
 
+#define _mm_mmask_i64gather_pd( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3div2df ((__v2df) __v1_old, __addr, (__v2di) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm_mmask_i64gather_epi64( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3div2di ((__v2di) __v1_old, __addr, (__v2di) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm256_mmask_i64gather_pd( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3div4df ((__v4df) __v1_old, __addr, (__v4di) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm256_mmask_i64gather_epi64( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3div4di ((__v4di) __v1_old, __addr, (__v4di) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm_mmask_i64gather_ps( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3div4sf ((__v4sf) __v1_old, __addr, (__v2di) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm_mmask_i64gather_epi32( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3div4si ((__v4si) __v1_old, __addr, (__v2di) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm256_mmask_i64gather_ps( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3div8sf ((__v4sf) __v1_old, __addr, (__v4di) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm256_mmask_i64gather_epi32( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3div8si ((__v4si) __v1_old, __addr, (__v4di) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm_mmask_i32gather_pd( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3siv2df ((__v2df) __v1_old, __addr, (__v4si) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm_mmask_i32gather_epi64( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3siv2di ((__v2di) __v1_old, __addr, (__v4si) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm256_mmask_i32gather_pd( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3siv4df ((__v4df) __v1_old, __addr, (__v4si) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm256_mmask_i32gather_epi64( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3siv4di ((__v4di) __v1_old, __addr, (__v4si) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm_mmask_i32gather_ps( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3siv4sf ((__v4sf) __v1_old, __addr, (__v4si) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm_mmask_i32gather_epi32( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3siv4si ((__v4si) __v1_old, __addr, (__v4si) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm256_mmask_i32gather_ps( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3siv8sf ((__v8sf) __v1_old, __addr, (__v8si) __index,\
+                               __mask, __scale);\
+})
+
+#define _mm256_mmask_i32gather_epi32( __v1_old, __mask, __index, __addr, __scale) __extension__ ({\
+__builtin_ia32_gather3siv8si ((__v8si) __v1_old, __addr, (__v8si) __index,\
+                               __mask, __scale);\
+})
+
 #undef __DEFAULT_FN_ATTRS
 #undef __DEFAULT_FN_ATTRS_BOTH
 
Index: lib/Headers/immintrin.h
===================================================================
--- lib/Headers/immintrin.h
+++ lib/Headers/immintrin.h
@@ -87,6 +87,8 @@
 
 #include <avx512vbmivlintrin.h>
 
+#include <avx512pfintrin.h>
+
 #include <pkuintrin.h>
 
 static __inline__ int __attribute__((__always_inline__, __nodebug__, __target__("rdrnd")))
Index: test/CodeGen/avx512f-builtins.c
===================================================================
--- test/CodeGen/avx512f-builtins.c
+++ test/CodeGen/avx512f-builtins.c
@@ -4275,3 +4275,100 @@
   // CHECK: @llvm.x86.avx512.mask.getexp.ps.512
   return _mm512_maskz_getexp_ps(__U, __A); 
 }
+
+__m256 test_mm512_i64gather_ps(__m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_i64gather_ps
+  // CHECK: @llvm.x86.avx512.gather.qps.512
+  return _mm512_i64gather_ps(__index, __addr, 2); 
+}
+
+__m256 test_mm512_mask_i64gather_ps(__m256 __v1_old, __mmask8 __mask, __m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_mask_i64gather_ps
+  // CHECK: @llvm.x86.avx512.gather.qps.512
+  return _mm512_mask_i64gather_ps(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m256i test_mm512_i64gather_epi32(__m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_i64gather_epi32
+  // CHECK: @llvm.x86.avx512.gather.qpi.512
+  return _mm512_i64gather_epi32(__index, __addr, 2); 
+}
+
+__m256i test_mm512_mask_i64gather_epi32(__m256i __v1_old, __mmask8 __mask, __m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_mask_i64gather_epi32
+  // CHECK: @llvm.x86.avx512.gather.qpi.512
+  return _mm512_mask_i64gather_epi32(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m512d test_mm512_i64gather_pd(__m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_i64gather_pd
+  // CHECK: @llvm.x86.avx512.gather.qpd.512
+  return _mm512_i64gather_pd(__index, __addr, 2); 
+}
+
+__m512d test_mm512_mask_i64gather_pd(__m512d __v1_old, __mmask8 __mask, __m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_mask_i64gather_pd
+  // CHECK: @llvm.x86.avx512.gather.qpd.512
+  return _mm512_mask_i64gather_pd(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m512i test_mm512_i64gather_epi64(__m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_i64gather_epi64
+  // CHECK: @llvm.x86.avx512.gather.qpq.512
+  return _mm512_i64gather_epi64(__index, __addr, 2); 
+}
+
+__m512i test_mm512_mask_i64gather_epi64(__m512i __v1_old, __mmask8 __mask, __m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_mask_i64gather_epi64
+  // CHECK: @llvm.x86.avx512.gather.qpq.512
+  return _mm512_mask_i64gather_epi64(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m512 test_mm512_i32gather_ps(__m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_i32gather_ps
+  // CHECK: @llvm.x86.avx512.gather.dps.512
+  return _mm512_i32gather_ps(__index, __addr, 2); 
+}
+
+__m512 test_mm512_mask_i32gather_ps(__m512 v1_old, __mmask16 __mask, __m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_mask_i32gather_ps
+  // CHECK: @llvm.x86.avx512.gather.dps.512
+  return _mm512_mask_i32gather_ps(v1_old, __mask, __index, __addr, 2); 
+}
+
+__m512i test_mm512_i32gather_epi32(__m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_i32gather_epi32
+  // CHECK: @llvm.x86.avx512.gather.dpi.512
+  return _mm512_i32gather_epi32(__index, __addr, 2); 
+}
+
+__m512i test_mm512_mask_i32gather_epi32(__m512i __v1_old, __mmask16 __mask, __m512i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_mask_i32gather_epi32
+  // CHECK: @llvm.x86.avx512.gather.dpi.512
+  return _mm512_mask_i32gather_epi32(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m512d test_mm512_i32gather_pd(__m256i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_i32gather_pd
+  // CHECK: @llvm.x86.avx512.gather.dpd.512
+  return _mm512_i32gather_pd(__index, __addr, 2); 
+}
+
+__m512d test_mm512_mask_i32gather_pd(__m512d __v1_old, __mmask8 __mask, __m256i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_mask_i32gather_pd
+  // CHECK: @llvm.x86.avx512.gather.dpd.512
+  return _mm512_mask_i32gather_pd(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m512i test_mm512_i32gather_epi64(__m256i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_i32gather_epi64
+  // CHECK: @llvm.x86.avx512.gather.dpq.512
+  return _mm512_i32gather_epi64(__index, __addr, 2); 
+}
+
+__m512i test_mm512_mask_i32gather_epi64(__m512i __v1_old, __mmask8 __mask, __m256i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm512_mask_i32gather_epi64
+  // CHECK: @llvm.x86.avx512.gather.dpq.512
+  return _mm512_mask_i32gather_epi64(__v1_old, __mask, __index, __addr, 2); 
+}
+
Index: test/CodeGen/avx512pf-builtins.c
===================================================================
--- test/CodeGen/avx512pf-builtins.c
+++ test/CodeGen/avx512pf-builtins.c
@@ -0,0 +1,30 @@
+// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin -target-feature +avx512pf -emit-llvm -o - -Werror | FileCheck %s
+
+// Don't include mm_malloc.h, it's system specific.
+#define __MM_MALLOC_H
+
+#include <immintrin.h>
+
+void test_mm512_mask_prefetch_i32gather_pd(__m256i index, __mmask8 mask, void const *addr, int hint) {
+  // CHECK-LABEL: @test_mm512_mask_prefetch_i32gather_pd
+  // CHECK: @llvm.x86.avx512.gatherpf.dpd
+  return _mm512_mask_prefetch_i32gather_pd(index, mask, addr, 2, 1); 
+}
+
+void test_mm512_mask_prefetch_i32gather_ps(__m512i index, __mmask16 mask, void const *addr, int hint) {
+  // CHECK-LABEL: @test_mm512_mask_prefetch_i32gather_ps
+  // CHECK: @llvm.x86.avx512.gatherpf.dps
+  return _mm512_mask_prefetch_i32gather_ps(index, mask, addr, 2, 1); 
+}
+
+void test_mm512_mask_prefetch_i64gather_pd(__m512i index, __mmask8 mask, void const *addr, int hint) {
+  // CHECK-LABEL: @test_mm512_mask_prefetch_i64gather_pd
+  // CHECK: @llvm.x86.avx512.gatherpf.qpd
+  return _mm512_mask_prefetch_i64gather_pd(index, mask, addr, 2, 1); 
+}
+
+void test_mm512_mask_prefetch_i64gather_ps(__m512i index, __mmask8 mask, void const *addr, int hint) {
+  // CHECK-LABEL: @test_mm512_mask_prefetch_i64gather_ps
+  // CHECK: @llvm.x86.avx512.gatherpf.qps
+  return _mm512_mask_prefetch_i64gather_ps(index, mask, addr, 2, 1); 
+}
Index: test/CodeGen/avx512vl-builtins.c
===================================================================
--- test/CodeGen/avx512vl-builtins.c
+++ test/CodeGen/avx512vl-builtins.c
@@ -6262,3 +6262,99 @@
   // CHECK: @llvm.x86.avx512.mask.getmant.ps.256
   return _mm256_maskz_getmant_ps(__U, __A,_MM_MANT_NORM_p5_2, _MM_MANT_SIGN_nan); 
 }
+
+__m128d test_mm_mmask_i64gather_pd(__m128d __v1_old, __mmask8 __mask, __m128i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm_mmask_i64gather_pd
+  // CHECK: @llvm.x86.avx512.gather3div2.df
+  return _mm_mmask_i64gather_pd(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m128i test_mm_mmask_i64gather_epi64(__m128i __v1_old, __mmask8 __mask, __m128i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm_mmask_i64gather_epi64
+  // CHECK: @llvm.x86.avx512.gather3div2.di
+  return _mm_mmask_i64gather_epi64(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m256d test_mm256_mmask_i64gather_pd(__m256d __v1_old, __mmask8 __mask, __m256i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm256_mmask_i64gather_pd
+  // CHECK: @llvm.x86.avx512.gather3div4.df
+  return _mm256_mmask_i64gather_pd(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m256i test_mm256_mmask_i64gather_epi64(__m256i __v1_old, __mmask8 __mask, __m256i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm256_mmask_i64gather_epi64
+  // CHECK: @llvm.x86.avx512.gather3div4.di
+  return _mm256_mmask_i64gather_epi64(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m128 test_mm_mmask_i64gather_ps(__m128 __v1_old, __mmask8 __mask, __m128i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm_mmask_i64gather_ps
+  // CHECK: @llvm.x86.avx512.gather3div4.sf
+  return _mm_mmask_i64gather_ps(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m128i test_mm_mmask_i64gather_epi32(__m128i __v1_old, __mmask8 __mask, __m128i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm_mmask_i64gather_epi32
+  // CHECK: @llvm.x86.avx512.gather3div4.si
+  return _mm_mmask_i64gather_epi32(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m128 test_mm256_mmask_i64gather_ps(__m128 __v1_old, __mmask8 __mask, __m256i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm256_mmask_i64gather_ps
+  // CHECK: @llvm.x86.avx512.gather3div8.sf
+  return _mm256_mmask_i64gather_ps(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m128i test_mm256_mmask_i64gather_epi32(__m128i __v1_old, __mmask8 __mask, __m256i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm256_mmask_i64gather_epi32
+  // CHECK: @llvm.x86.avx512.gather3div8.si
+  return _mm256_mmask_i64gather_epi32(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m128d test_mm_mask_i32gather_pd(__m128d __v1_old, __mmask8 __mask, __m128i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm_mask_i32gather_pd
+  // CHECK: @llvm.x86.avx512.gather3siv2.df
+  return _mm_mmask_i32gather_pd(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m128i test_mm_mask_i32gather_epi64(__m128i __v1_old, __mmask8 __mask, __m128i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm_mask_i32gather_epi64
+  // CHECK: @llvm.x86.avx512.gather3siv2.di
+  return _mm_mmask_i32gather_epi64(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m256d test_mm256_mask_i32gather_pd(__m256d __v1_old, __mmask8 __mask, __m128i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm256_mask_i32gather_pd
+  // CHECK: @llvm.x86.avx512.gather3siv4.df
+  return _mm256_mmask_i32gather_pd(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m256i test_mm256_mask_i32gather_epi64(__m256i __v1_old, __mmask8 __mask, __m128i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm256_mask_i32gather_epi64
+  // CHECK: @llvm.x86.avx512.gather3siv4.di
+  return _mm256_mmask_i32gather_epi64(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m128 test_mm_mask_i32gather_ps(__m128 __v1_old, __mmask8 __mask, __m128i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm_mask_i32gather_ps
+  // CHECK: @llvm.x86.avx512.gather3siv4.sf
+  return _mm_mmask_i32gather_ps(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m128i test_mm_mask_i32gather_epi32(__m128i __v1_old, __mmask8 __mask, __m128i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm_mask_i32gather_epi32
+  // CHECK: @llvm.x86.avx512.gather3siv4.si
+  return _mm_mmask_i32gather_epi32(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m256 test_mm256_mask_i32gather_ps(__m256 __v1_old, __mmask8 __mask, __m256i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm256_mask_i32gather_ps
+  // CHECK: @llvm.x86.avx512.gather3siv8.sf
+  return _mm256_mmask_i32gather_ps(__v1_old, __mask, __index, __addr, 2); 
+}
+
+__m256i test_mm256_mask_i32gather_epi32(__m256i __v1_old, __mmask8 __mask, __m256i __index, void const *__addr) {
+  // CHECK-LABEL: @test_mm256_mask_i32gather_epi32
+  // CHECK: @llvm.x86.avx512.gather3siv8.si
+  return _mm256_mmask_i32gather_epi32(__v1_old, __mask, __index, __addr, 2); 
+}