diff --git a/clang/include/clang/Basic/arm_neon.td b/clang/include/clang/Basic/arm_neon.td
--- a/clang/include/clang/Basic/arm_neon.td
+++ b/clang/include/clang/Basic/arm_neon.td
@@ -635,11 +635,23 @@
 def VUZP : WInst<"vuzp", "2..", "csiUcUsUifPcPsQcQsQiQUcQUsQUiQfQPcQPs">;
 
 ////////////////////////////////////////////////////////////////////////////////
+
+class REINTERPRET_CROSS_SELF<string Types> :
+  NoTestOpInst<"vreinterpret", "..", Types, OP_REINT> {
+    let CartesianProductWith = Types;
+}
+
+multiclass REINTERPRET_CROSS_TYPES<string TypesA, string TypesB> {
+  def AXB: NoTestOpInst<"vreinterpret", "..", TypesA, OP_REINT> {
+    let CartesianProductWith = TypesB;
+  }
+  def BXA: NoTestOpInst<"vreinterpret", "..", TypesB, OP_REINT> {
+    let CartesianProductWith = TypesA;
+  }
+}
+
 // E.3.31 Vector reinterpret cast operations
-def VREINTERPRET
-  : NoTestOpInst<"vreinterpret", "..",
-         "csilUcUsUiUlhfPcPsQcQsQiQlQUcQUsQUiQUlQhQfQPcQPs", OP_REINT> {
-  let CartesianProductOfTypes = 1;
+def VREINTERPRET : REINTERPRET_CROSS_SELF<"csilUcUsUiUlhfPcPsQcQsQiQlQUcQUsQUiQUlQhQfQPcQPs"> {
   let ArchGuard = "!defined(__aarch64__)";
   let BigEndianSafe = 1;
 }
@@ -1188,12 +1200,9 @@
 // NeonEmitter implicitly takes the cartesian product of the type string with
 // itself during generation so, unlike all other intrinsics, this one should
 // include *all* types, not just additional ones.
-def VVREINTERPRET
-  : NoTestOpInst<"vreinterpret", "..",
-       "csilUcUsUiUlhfdPcPsPlQcQsQiQlQUcQUsQUiQUlQhQfQdQPcQPsQPlQPk", OP_REINT> {
-  let CartesianProductOfTypes = 1;
-  let BigEndianSafe = 1;
+def VVREINTERPRET : REINTERPRET_CROSS_SELF<"csilUcUsUiUlhfdPcPsPlQcQsQiQlQUcQUsQUiQUlQhQfQdQPcQPsQPlQPk"> {
   let ArchGuard = "__ARM_ARCH >= 8 && defined(__aarch64__)";
+  let BigEndianSafe = 1;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -1891,3 +1900,17 @@
     let isLaneQ = 1;
   }
 }
+
+let ArchGuard = "defined(__ARM_FEATURE_BF16) && !defined(__aarch64__)" in {
+  let BigEndianSafe = 1 in {
+    defm VREINTERPRET_BF : REINTERPRET_CROSS_TYPES<
+        "csilUcUsUiUlhfPcPsPlQcQsQiQlQUcQUsQUiQUlQhQfQPcQPsQPl", "bQb">;
+  }
+}
+
+let ArchGuard = "defined(__ARM_FEATURE_BF16) && defined(__aarch64__)" in {
+  let BigEndianSafe = 1 in {
+    defm VVREINTERPRET_BF : REINTERPRET_CROSS_TYPES<
+        "csilUcUsUiUlhfdPcPsPlQcQsQiQlQUcQUsQUiQUlQhQfQdQPcQPsQPlQPk", "bQb">;
+  }
+}
diff --git a/clang/include/clang/Basic/arm_neon_incl.td b/clang/include/clang/Basic/arm_neon_incl.td
--- a/clang/include/clang/Basic/arm_neon_incl.td
+++ b/clang/include/clang/Basic/arm_neon_incl.td
@@ -267,7 +267,6 @@
   string ArchGuard = "";
 
   Operation Operation = o;
-  bit CartesianProductOfTypes = 0;
   bit BigEndianSafe = 0;
   bit isShift = 0;
   bit isScalarShift = 0;
@@ -289,6 +288,8 @@
   // this. Ex: vset_lane which outputs vmov instructions.
   bit isHiddenWInst = 0;
   bit isHiddenLInst = 0;
+
+  string CartesianProductWith = "";
 }
 
 // The following instruction classes are implemented via builtins.
diff --git a/clang/test/CodeGen/aarch64-bf16-reinterpret-intrinsics.c b/clang/test/CodeGen/aarch64-bf16-reinterpret-intrinsics.c
new file mode 100644
--- /dev/null
+++ b/clang/test/CodeGen/aarch64-bf16-reinterpret-intrinsics.c
@@ -0,0 +1,333 @@
+// RUN: %clang_cc1 -triple aarch64-arm-none-eabi -target-feature +neon -target-feature +bf16 \
+// RUN: -disable-O0-optnone -S -emit-llvm -o - %s \
+// RUN: | opt -S -mem2reg \
+// RUN: | FileCheck %s
+
+// REQUIRES: aarch64-registered-target
+
+#include <arm_neon.h>
+
+// CHECK-LABEL: @test_vreinterpret_bf16_s8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i8> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_s8(int8x8_t a)      { return vreinterpret_bf16_s8(a);    }
+// CHECK-LABEL: @test_vreinterpret_bf16_s16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i16> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_s16(int16x4_t a)    { return vreinterpret_bf16_s16(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_s32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x i32> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_s32(int32x2_t a)    { return vreinterpret_bf16_s32(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_f32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x float> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_f32(float32x2_t a)  { return vreinterpret_bf16_f32(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_u8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i8> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_u8(uint8x8_t a)     { return vreinterpret_bf16_u8(a);    }
+// CHECK-LABEL: @test_vreinterpret_bf16_u16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i16> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_u16(uint16x4_t a)   { return vreinterpret_bf16_u16(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_u32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x i32> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_u32(uint32x2_t a)   { return vreinterpret_bf16_u32(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_p8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i8> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_p8(poly8x8_t a)     { return vreinterpret_bf16_p8(a);    }
+// CHECK-LABEL: @test_vreinterpret_bf16_p16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i16> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_p16(poly16x4_t a)   { return vreinterpret_bf16_p16(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_u64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <1 x i64> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_u64(uint64x1_t a)   { return vreinterpret_bf16_u64(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_s64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <1 x i64> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_s64(int64x1_t a)    { return vreinterpret_bf16_s64(a);   }
+// CHECK-LABEL: @test_vreinterpretq_bf16_s8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <16 x i8> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_s8(int8x16_t a)    { return vreinterpretq_bf16_s8(a);   }
+// CHECK-LABEL: @test_vreinterpretq_bf16_s16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i16> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_s16(int16x8_t a)   { return vreinterpretq_bf16_s16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_s32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i32> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_s32(int32x4_t a)   { return vreinterpretq_bf16_s32(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_f32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x float> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_f32(float32x4_t a) { return vreinterpretq_bf16_f32(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_u8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <16 x i8> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_u8(uint8x16_t a)   { return vreinterpretq_bf16_u8(a);   }
+// CHECK-LABEL: @test_vreinterpretq_bf16_u16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i16> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_u16(uint16x8_t a)  { return vreinterpretq_bf16_u16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_u32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i32> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_u32(uint32x4_t a)  { return vreinterpretq_bf16_u32(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_p8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <16 x i8> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_p8(poly8x16_t a)   { return vreinterpretq_bf16_p8(a);   }
+// CHECK-LABEL: @test_vreinterpretq_bf16_p16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i16> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_p16(poly16x8_t a)  { return vreinterpretq_bf16_p16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_u64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x i64> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_u64(uint64x2_t a)  { return vreinterpretq_bf16_u64(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_s64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x i64> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_s64(int64x2_t a)   { return vreinterpretq_bf16_s64(a);  }
+// CHECK-LABEL: @test_vreinterpret_bf16_p64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <1 x i64> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_p64(poly64x1_t a)   { return vreinterpret_bf16_p64(a);   }
+// CHECK-LABEL: @test_vreinterpretq_bf16_p64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x i64> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_p64(poly64x2_t a)  { return vreinterpretq_bf16_p64(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_p128(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast i128 [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_p128(poly128_t a)  { return vreinterpretq_bf16_p128(a); }
+// CHECK-LABEL: @test_vreinterpret_bf16_f64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <1 x double> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_f64(float64x1_t a)  { return vreinterpret_bf16_f64(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_f64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x double> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_f64(float64x2_t a) { return vreinterpretq_bf16_f64(a); }
+// CHECK-LABEL: @test_vreinterpret_s8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <8 x i8>
+// CHECK-NEXT:    ret <8 x i8> [[TMP0]]
+//
+int8x8_t    test_vreinterpret_s8_bf16(bfloat16x4_t a)    { return vreinterpret_s8_bf16(a);    }
+// CHECK-LABEL: @test_vreinterpret_s16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <4 x i16>
+// CHECK-NEXT:    ret <4 x i16> [[TMP0]]
+//
+int16x4_t   test_vreinterpret_s16_bf16(bfloat16x4_t a)   { return vreinterpret_s16_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_s32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <2 x i32>
+// CHECK-NEXT:    ret <2 x i32> [[TMP0]]
+//
+int32x2_t   test_vreinterpret_s32_bf16(bfloat16x4_t a)   { return vreinterpret_s32_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_f32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <2 x float>
+// CHECK-NEXT:    ret <2 x float> [[TMP0]]
+//
+float32x2_t test_vreinterpret_f32_bf16(bfloat16x4_t a)   { return vreinterpret_f32_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_u8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <8 x i8>
+// CHECK-NEXT:    ret <8 x i8> [[TMP0]]
+//
+uint8x8_t   test_vreinterpret_u8_bf16(bfloat16x4_t a)    { return vreinterpret_u8_bf16(a);    }
+// CHECK-LABEL: @test_vreinterpret_u16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <4 x i16>
+// CHECK-NEXT:    ret <4 x i16> [[TMP0]]
+//
+uint16x4_t  test_vreinterpret_u16_bf16(bfloat16x4_t a)   { return vreinterpret_u16_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_u32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <2 x i32>
+// CHECK-NEXT:    ret <2 x i32> [[TMP0]]
+//
+uint32x2_t  test_vreinterpret_u32_bf16(bfloat16x4_t a)   { return vreinterpret_u32_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_p8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <8 x i8>
+// CHECK-NEXT:    ret <8 x i8> [[TMP0]]
+//
+poly8x8_t   test_vreinterpret_p8_bf16(bfloat16x4_t a)    { return vreinterpret_p8_bf16(a);    }
+// CHECK-LABEL: @test_vreinterpret_p16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <4 x i16>
+// CHECK-NEXT:    ret <4 x i16> [[TMP0]]
+//
+poly16x4_t  test_vreinterpret_p16_bf16(bfloat16x4_t a)   { return vreinterpret_p16_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_u64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <1 x i64>
+// CHECK-NEXT:    ret <1 x i64> [[TMP0]]
+//
+uint64x1_t  test_vreinterpret_u64_bf16(bfloat16x4_t a)   { return vreinterpret_u64_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_s64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <1 x i64>
+// CHECK-NEXT:    ret <1 x i64> [[TMP0]]
+//
+int64x1_t   test_vreinterpret_s64_bf16(bfloat16x4_t a)   { return vreinterpret_s64_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_p64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <1 x i64>
+// CHECK-NEXT:    ret <1 x i64> [[TMP0]]
+//
+poly64x1_t  test_vreinterpret_p64_bf16(bfloat16x4_t a)   { return vreinterpret_p64_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpretq_s8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <16 x i8>
+// CHECK-NEXT:    ret <16 x i8> [[TMP0]]
+//
+int8x16_t   test_vreinterpretq_s8_bf16(bfloat16x8_t a)   { return vreinterpretq_s8_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpretq_s16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <8 x i16>
+// CHECK-NEXT:    ret <8 x i16> [[TMP0]]
+//
+int16x8_t   test_vreinterpretq_s16_bf16(bfloat16x8_t a)  { return vreinterpretq_s16_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_s32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <4 x i32>
+// CHECK-NEXT:    ret <4 x i32> [[TMP0]]
+//
+int32x4_t   test_vreinterpretq_s32_bf16(bfloat16x8_t a)  { return vreinterpretq_s32_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_f32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <4 x float>
+// CHECK-NEXT:    ret <4 x float> [[TMP0]]
+//
+float32x4_t test_vreinterpretq_f32_bf16(bfloat16x8_t a)  { return vreinterpretq_f32_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_u8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <16 x i8>
+// CHECK-NEXT:    ret <16 x i8> [[TMP0]]
+//
+uint8x16_t  test_vreinterpretq_u8_bf16(bfloat16x8_t a)   { return vreinterpretq_u8_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpretq_u16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <8 x i16>
+// CHECK-NEXT:    ret <8 x i16> [[TMP0]]
+//
+uint16x8_t  test_vreinterpretq_u16_bf16(bfloat16x8_t a)  { return vreinterpretq_u16_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_u32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <4 x i32>
+// CHECK-NEXT:    ret <4 x i32> [[TMP0]]
+//
+uint32x4_t  test_vreinterpretq_u32_bf16(bfloat16x8_t a)  { return vreinterpretq_u32_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_p8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <16 x i8>
+// CHECK-NEXT:    ret <16 x i8> [[TMP0]]
+//
+poly8x16_t  test_vreinterpretq_p8_bf16(bfloat16x8_t a)   { return vreinterpretq_p8_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpretq_p16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <8 x i16>
+// CHECK-NEXT:    ret <8 x i16> [[TMP0]]
+//
+poly16x8_t  test_vreinterpretq_p16_bf16(bfloat16x8_t a)  { return vreinterpretq_p16_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_u64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <2 x i64>
+// CHECK-NEXT:    ret <2 x i64> [[TMP0]]
+//
+uint64x2_t  test_vreinterpretq_u64_bf16(bfloat16x8_t a)  { return vreinterpretq_u64_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_s64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <2 x i64>
+// CHECK-NEXT:    ret <2 x i64> [[TMP0]]
+//
+int64x2_t   test_vreinterpretq_s64_bf16(bfloat16x8_t a)  { return vreinterpretq_s64_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_p64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <2 x i64>
+// CHECK-NEXT:    ret <2 x i64> [[TMP0]]
+//
+poly64x2_t  test_vreinterpretq_p64_bf16(bfloat16x8_t a)  { return vreinterpretq_p64_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_p128_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to i128
+// CHECK-NEXT:    ret i128 [[TMP0]]
+//
+poly128_t   test_vreinterpretq_p128_bf16(bfloat16x8_t a) { return vreinterpretq_p128_bf16(a); }
+// CHECK-LABEL: @test_vreinterpret_f64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <1 x double>
+// CHECK-NEXT:    ret <1 x double> [[TMP0]]
+//
+float64x1_t test_vreinterpret_f64_bf16(bfloat16x4_t a)   { return vreinterpret_f64_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpretq_f64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <2 x double>
+// CHECK-NEXT:    ret <2 x double> [[TMP0]]
+//
+float64x2_t test_vreinterpretq_f64_bf16(bfloat16x8_t a)  { return vreinterpretq_f64_bf16(a);  }
diff --git a/clang/test/CodeGen/arm-bf16-reinterpret-intrinsics.c b/clang/test/CodeGen/arm-bf16-reinterpret-intrinsics.c
new file mode 100644
--- /dev/null
+++ b/clang/test/CodeGen/arm-bf16-reinterpret-intrinsics.c
@@ -0,0 +1,314 @@
+// RUN: %clang_cc1 -triple armv8.2a-arm-none-eabi -target-feature +neon -target-feature +bf16 -mfloat-abi hard \
+// RUN: -disable-O0-optnone -S -emit-llvm -o - %s \
+// RUN: | opt -S -instcombine \
+// RUN: | FileCheck %s
+
+// REQUIRES: arm-registered-target
+
+#include <arm_neon.h>
+
+// CHECK-LABEL: @test_vreinterpret_bf16_s8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i8> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_s8(int8x8_t a)      { return vreinterpret_bf16_s8(a);    }
+// CHECK-LABEL: @test_vreinterpret_bf16_s16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i16> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_s16(int16x4_t a)    { return vreinterpret_bf16_s16(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_s32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x i32> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[A:%.*]]
+//
+bfloat16x4_t test_vreinterpret_bf16_s32(int32x2_t a)    { return vreinterpret_bf16_s32(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_f32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x float> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_f32(float32x2_t a)  { return vreinterpret_bf16_f32(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_u8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i8> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_u8(uint8x8_t a)     { return vreinterpret_bf16_u8(a);    }
+// CHECK-LABEL: @test_vreinterpret_bf16_u16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i16> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_u16(uint16x4_t a)   { return vreinterpret_bf16_u16(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_u32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x i32> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[A:%.*]]
+//
+bfloat16x4_t test_vreinterpret_bf16_u32(uint32x2_t a)   { return vreinterpret_bf16_u32(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_p8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i8> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_p8(poly8x8_t a)     { return vreinterpret_bf16_p8(a);    }
+// CHECK-LABEL: @test_vreinterpret_bf16_p16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i16> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_p16(poly16x4_t a)   { return vreinterpret_bf16_p16(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_u64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <1 x i64> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_u64(uint64x1_t a)   { return vreinterpret_bf16_u64(a);   }
+// CHECK-LABEL: @test_vreinterpret_bf16_s64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <1 x i64> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_s64(int64x1_t a)    { return vreinterpret_bf16_s64(a);   }
+// CHECK-LABEL: @test_vreinterpretq_bf16_s8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <16 x i8> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_s8(int8x16_t a)    { return vreinterpretq_bf16_s8(a);   }
+// CHECK-LABEL: @test_vreinterpretq_bf16_s16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i16> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_s16(int16x8_t a)   { return vreinterpretq_bf16_s16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_s32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i32> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[A:%.*]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_s32(int32x4_t a)   { return vreinterpretq_bf16_s32(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_f32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x float> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_f32(float32x4_t a) { return vreinterpretq_bf16_f32(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_u8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <16 x i8> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_u8(uint8x16_t a)   { return vreinterpretq_bf16_u8(a);   }
+// CHECK-LABEL: @test_vreinterpretq_bf16_u16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i16> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_u16(uint16x8_t a)  { return vreinterpretq_bf16_u16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_u32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i32> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[A:%.*]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_u32(uint32x4_t a)  { return vreinterpretq_bf16_u32(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_p8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <16 x i8> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_p8(poly8x16_t a)   { return vreinterpretq_bf16_p8(a);   }
+// CHECK-LABEL: @test_vreinterpretq_bf16_p16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x i16> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_p16(poly16x8_t a)  { return vreinterpretq_bf16_p16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_u64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x i64> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_u64(uint64x2_t a)  { return vreinterpretq_bf16_u64(a);  }
+// CHECK-LABEL: @test_vreinterpretq_bf16_s64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x i64> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_s64(int64x2_t a)   { return vreinterpretq_bf16_s64(a);  }
+// CHECK-LABEL: @test_vreinterpret_bf16_p64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <1 x i64> [[A:%.*]] to <4 x bfloat>
+// CHECK-NEXT:    ret <4 x bfloat> [[TMP0]]
+//
+bfloat16x4_t test_vreinterpret_bf16_p64(poly64x1_t a)   { return vreinterpret_bf16_p64(a);   }
+// CHECK-LABEL: @test_vreinterpretq_bf16_p64(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <2 x i64> [[A:%.*]] to <8 x bfloat>
+// CHECK-NEXT:    ret <8 x bfloat> [[TMP0]]
+//
+bfloat16x8_t test_vreinterpretq_bf16_p64(poly64x2_t a)  { return vreinterpretq_bf16_p64(a);  }
+
+// TODO: poly128_t not implemented on aarch32
+// CHCK-LABEL: @test_vreinterpretq_bf16_p128(
+// CHCK-NEXT:  entry:
+// CHCK-NEXT:    [[TMP0:%.*]] = bitcast i128 [[A:%.*]] to <4 x i32>
+// CHCK-NEXT:    ret <4 x i32> [[TMP0]]
+//
+//bfloat16x8_t test_vreinterpretq_bf16_p128(poly128_t a)  { return vreinterpretq_bf16_p128(a); }
+
+// CHECK-LABEL: @test_vreinterpret_s8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <8 x i8>
+// CHECK-NEXT:    ret <8 x i8> [[TMP0]]
+//
+int8x8_t    test_vreinterpret_s8_bf16(bfloat16x4_t a)    { return vreinterpret_s8_bf16(a);    }
+// CHECK-LABEL: @test_vreinterpret_s16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <4 x i16>
+// CHECK-NEXT:    ret <4 x i16> [[TMP0]]
+//
+int16x4_t   test_vreinterpret_s16_bf16(bfloat16x4_t a)   { return vreinterpret_s16_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_s32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <2 x i32>
+// CHECK-NEXT:    ret <2 x i32> [[A:%.*]]
+//
+int32x2_t   test_vreinterpret_s32_bf16(bfloat16x4_t a)   { return vreinterpret_s32_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_f32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <2 x float>
+// CHECK-NEXT:    ret <2 x float> [[TMP0]]
+//
+float32x2_t test_vreinterpret_f32_bf16(bfloat16x4_t a)   { return vreinterpret_f32_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_u8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <8 x i8>
+// CHECK-NEXT:    ret <8 x i8> [[TMP0]]
+//
+uint8x8_t   test_vreinterpret_u8_bf16(bfloat16x4_t a)    { return vreinterpret_u8_bf16(a);    }
+// CHECK-LABEL: @test_vreinterpret_u16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <4 x i16>
+// CHECK-NEXT:    ret <4 x i16> [[TMP0]]
+//
+uint16x4_t  test_vreinterpret_u16_bf16(bfloat16x4_t a)   { return vreinterpret_u16_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_u32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <2 x i32>
+// CHECK-NEXT:    ret <2 x i32> [[A:%.*]]
+//
+uint32x2_t  test_vreinterpret_u32_bf16(bfloat16x4_t a)   { return vreinterpret_u32_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_p8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <8 x i8>
+// CHECK-NEXT:    ret <8 x i8> [[TMP0]]
+//
+poly8x8_t   test_vreinterpret_p8_bf16(bfloat16x4_t a)    { return vreinterpret_p8_bf16(a);    }
+// CHECK-LABEL: @test_vreinterpret_p16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <4 x i16>
+// CHECK-NEXT:    ret <4 x i16> [[TMP0]]
+//
+poly16x4_t  test_vreinterpret_p16_bf16(bfloat16x4_t a)   { return vreinterpret_p16_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_u64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <1 x i64>
+// CHECK-NEXT:    ret <1 x i64> [[TMP0]]
+//
+uint64x1_t  test_vreinterpret_u64_bf16(bfloat16x4_t a)   { return vreinterpret_u64_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_s64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <1 x i64>
+// CHECK-NEXT:    ret <1 x i64> [[TMP0]]
+//
+int64x1_t   test_vreinterpret_s64_bf16(bfloat16x4_t a)   { return vreinterpret_s64_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpret_p64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x bfloat> [[A:%.*]] to <1 x i64>
+// CHECK-NEXT:    ret <1 x i64> [[TMP0]]
+//
+poly64x1_t  test_vreinterpret_p64_bf16(bfloat16x4_t a)   { return vreinterpret_p64_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpretq_s8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <16 x i8>
+// CHECK-NEXT:    ret <16 x i8> [[TMP0]]
+//
+int8x16_t   test_vreinterpretq_s8_bf16(bfloat16x8_t a)   { return vreinterpretq_s8_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpretq_s16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <8 x i16>
+// CHECK-NEXT:    ret <8 x i16> [[TMP0]]
+//
+int16x8_t   test_vreinterpretq_s16_bf16(bfloat16x8_t a)  { return vreinterpretq_s16_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_s32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <4 x i32>
+// CHECK-NEXT:    ret <4 x i32> [[A:%.*]]
+//
+int32x4_t   test_vreinterpretq_s32_bf16(bfloat16x8_t a)  { return vreinterpretq_s32_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_f32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <4 x float>
+// CHECK-NEXT:    ret <4 x float> [[TMP0]]
+//
+float32x4_t test_vreinterpretq_f32_bf16(bfloat16x8_t a)  { return vreinterpretq_f32_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_u8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <16 x i8>
+// CHECK-NEXT:    ret <16 x i8> [[TMP0]]
+//
+uint8x16_t  test_vreinterpretq_u8_bf16(bfloat16x8_t a)   { return vreinterpretq_u8_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpretq_u16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <8 x i16>
+// CHECK-NEXT:    ret <8 x i16> [[TMP0]]
+//
+uint16x8_t  test_vreinterpretq_u16_bf16(bfloat16x8_t a)  { return vreinterpretq_u16_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_u32_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <4 x i32>
+// CHECK-NEXT:    ret <4 x i32> [[A:%.*]]
+//
+uint32x4_t  test_vreinterpretq_u32_bf16(bfloat16x8_t a)  { return vreinterpretq_u32_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_p8_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <16 x i8>
+// CHECK-NEXT:    ret <16 x i8> [[TMP0]]
+//
+poly8x16_t  test_vreinterpretq_p8_bf16(bfloat16x8_t a)   { return vreinterpretq_p8_bf16(a);   }
+// CHECK-LABEL: @test_vreinterpretq_p16_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <8 x i16>
+// CHECK-NEXT:    ret <8 x i16> [[TMP0]]
+//
+poly16x8_t  test_vreinterpretq_p16_bf16(bfloat16x8_t a)  { return vreinterpretq_p16_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_u64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <2 x i64>
+// CHECK-NEXT:    ret <2 x i64> [[TMP0]]
+//
+uint64x2_t  test_vreinterpretq_u64_bf16(bfloat16x8_t a)  { return vreinterpretq_u64_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_s64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <2 x i64>
+// CHECK-NEXT:    ret <2 x i64> [[TMP0]]
+//
+int64x2_t   test_vreinterpretq_s64_bf16(bfloat16x8_t a)  { return vreinterpretq_s64_bf16(a);  }
+// CHECK-LABEL: @test_vreinterpretq_p64_bf16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = bitcast <8 x bfloat> [[A:%.*]] to <2 x i64>
+// CHECK-NEXT:    ret <2 x i64> [[TMP0]]
+//
+poly64x2_t  test_vreinterpretq_p64_bf16(bfloat16x8_t a)  { return vreinterpretq_p64_bf16(a);  }
+
+// TODO: poly128_t not implemented on aarch32
+// CHCK-LABEL: @test_vreinterpretq_p128_bf16(
+// CHCK-NEXT:  entry:
+// CHCK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i32> [[A:%.*]] to i128
+// CHCK-NEXT:    ret i128 [[TMP0]]
+//
+//poly128_t   test_vreinterpretq_p128_bf16(bfloat16x8_t a) { return vreinterpretq_p128_bf16(a); }
diff --git a/clang/utils/TableGen/NeonEmitter.cpp b/clang/utils/TableGen/NeonEmitter.cpp
--- a/clang/utils/TableGen/NeonEmitter.cpp
+++ b/clang/utils/TableGen/NeonEmitter.cpp
@@ -311,7 +311,7 @@
   /// The unmangled name.
   std::string Name;
   /// The input and output typespecs. InTS == OutTS except when
-  /// CartesianProductOfTypes is 1 - this is the case for vreinterpret.
+  /// CartesianProductWith is non-empty - this is the case for vreinterpret.
   TypeSpec OutTS, InTS;
   /// The base class kind. Most intrinsics use ClassS, which has full type
   /// info for integers (s32/u32). Some use ClassI, which doesn't care about
@@ -344,7 +344,7 @@
   /// The set of intrinsics that this intrinsic uses/requires.
   std::set<Intrinsic *> Dependencies;
   /// The "base type", which is Type('d', OutTS). InBaseType is only
-  /// different if CartesianProductOfTypes = 1 (for vreinterpret).
+  /// different if CartesianProductWith is non-empty (for vreinterpret).
   Type BaseType, InBaseType;
   /// The return variable.
   Variable RetVar;
@@ -1936,10 +1936,10 @@
   std::string Proto = std::string(R->getValueAsString("Prototype"));
   std::string Types = std::string(R->getValueAsString("Types"));
   Record *OperationRec = R->getValueAsDef("Operation");
-  bool CartesianProductOfTypes = R->getValueAsBit("CartesianProductOfTypes");
   bool BigEndianSafe  = R->getValueAsBit("BigEndianSafe");
   std::string Guard = std::string(R->getValueAsString("ArchGuard"));
   bool IsUnavailable = OperationRec->getValueAsBit("Unavailable");
+  std::string CartesianProductWith = std::string(R->getValueAsString("CartesianProductWith"));
 
   // Set the global current record. This allows assert_with_loc to produce
   // decent location information even when highly nested.
@@ -1954,17 +1954,20 @@
     CK = ClassMap[R->getSuperClasses()[1].first];
 
   std::vector<std::pair<TypeSpec, TypeSpec>> NewTypeSpecs;
-  for (auto TS : TypeSpecs) {
-    if (CartesianProductOfTypes) {
+  if (!CartesianProductWith.empty()) {
+    std::vector<TypeSpec> ProductTypeSpecs = TypeSpec::fromTypeSpecs(CartesianProductWith);
+    for (auto TS : TypeSpecs) {
       Type DefaultT(TS, ".");
-      for (auto SrcTS : TypeSpecs) {
+      for (auto SrcTS : ProductTypeSpecs) {
         Type DefaultSrcT(SrcTS, ".");
         if (TS == SrcTS ||
             DefaultSrcT.getSizeInBits() != DefaultT.getSizeInBits())
           continue;
         NewTypeSpecs.push_back(std::make_pair(TS, SrcTS));
       }
-    } else {
+    }
+  } else {
+    for (auto TS : TypeSpecs) {
       NewTypeSpecs.push_back(std::make_pair(TS, TS));
     }
   }