diff --git a/clang/include/clang/Basic/arm_mve.td b/clang/include/clang/Basic/arm_mve.td
--- a/clang/include/clang/Basic/arm_mve.td
+++ b/clang/include/clang/Basic/arm_mve.td
@@ -51,6 +51,21 @@
                              (IRInt<"vmulh", [Vector]> $a, $b)>;
 def vrmulhq: Intrinsic<Vector, (args Vector:$a, Vector:$b),
                              (IRInt<"vrmulh", [Vector]> $a, $b)>;
+def vmullbq_int: Intrinsic<DblVector, (args Vector:$a, Vector:$b),
+                                      (IRInt<"vmull", [DblVector, Vector]>
+                                       $a, $b, 0)>;
+def vmulltq_int: Intrinsic<DblVector, (args Vector:$a, Vector:$b),
+                                      (IRInt<"vmull", [DblVector, Vector]>
+                                       $a, $b, 1)>;
+}
+
+let params = T.Poly, overrideKindLetter = "p" in {
+def vmullbq_poly: Intrinsic<DblVector, (args Vector:$a, Vector:$b),
+                                       (IRInt<"vmull_poly", [DblVector, Vector]>
+                                        $a, $b, 0)>;
+def vmulltq_poly: Intrinsic<DblVector, (args Vector:$a, Vector:$b),
+                                       (IRInt<"vmull_poly", [DblVector, Vector]>
+                                        $a, $b, 1)>;
 }
 
 let params = T.Float in {
@@ -123,6 +138,25 @@
 def vrmulhq_m: Intrinsic<
     Vector, (args Vector:$inactive, Vector:$a, Vector:$b, Predicate:$pred),
     (IRInt<"rmulh_predicated", [Vector, Predicate]> $a, $b, $pred, $inactive)>;
+def vmullbq_int_m: Intrinsic<
+    DblVector, (args Vector:$inactive, Vector:$a, Vector:$b, Predicate:$pred),
+    (IRInt<"mull_int_predicated", [DblVector, Vector, Predicate]> $a, $b, 0,
+     $pred, $inactive)>;
+def vmulltq_int_m: Intrinsic<
+    DblVector, (args Vector:$inactive, Vector:$a, Vector:$b, Predicate:$pred),
+    (IRInt<"mull_int_predicated", [DblVector, Vector, Predicate]> $a, $b, 1,
+     $pred, $inactive)>;
+}
+
+let params = T.Poly, overrideKindLetter = "p" in {
+def vmullbq_poly_m: Intrinsic<
+    DblVector, (args Vector:$inactive, Vector:$a, Vector:$b, Predicate:$pred),
+    (IRInt<"mull_poly_predicated", [DblVector, Vector, Predicate]> $a, $b, 0,
+     $pred, $inactive)>;
+def vmulltq_poly_m: Intrinsic<
+    DblVector, (args Vector:$inactive, Vector:$a, Vector:$b, Predicate:$pred),
+    (IRInt<"mull_poly_predicated", [DblVector, Vector, Predicate]> $a, $b, 1,
+     $pred, $inactive)>;
 }
 
 // Predicated intrinsics - Float types only
diff --git a/clang/include/clang/Basic/arm_mve_defs.td b/clang/include/clang/Basic/arm_mve_defs.td
--- a/clang/include/clang/Basic/arm_mve_defs.td
+++ b/clang/include/clang/Basic/arm_mve_defs.td
@@ -190,6 +190,7 @@
 class CTO_Tuple<int n_>: ComplexTypeOp { int n = n_; }
 class CTO_Pointer<bit const_>: ComplexTypeOp { bit const = const_; }
 def CTO_CopyKind: ComplexTypeOp;
+def CTO_DoubleSize: ComplexTypeOp;
 
 // -----------------------------------------------------------------------------
 // Instances of Type intended to be used directly in the specification of an
@@ -264,6 +265,11 @@
 // matches that of s.
 class CopyKind<Type s, Type k>: ComplexType<(CTO_CopyKind s, k)>;
 
+// DoubleSize<k> expects k to be a scalar type. It returns a scalar type
+// whose kind (signed, unsigned or float) matches that of k, and whose size
+// is double that of k, if possible.
+class DoubleSize<Type k>: ComplexType<(CTO_DoubleSize k)>;
+
 // Unsigned<t> expects t to be a scalar type, and expands to the unsigned
 // integer scalar of the same size. So it returns u16 if you give it s16 or
 // f16 (or u16 itself).
@@ -274,6 +280,10 @@
 def UScalar: Unsigned<Scalar>;
 def UVector: VecOf<UScalar>;
 
+// DblVector expands to a vector of scalars of size twice the size of
+// Scalar.
+def DblVector: VecOf<DoubleSize<Scalar>>;
+
 // -----------------------------------------------------------------------------
 // Internal definitions for specifying immediate arguments for an intrinsic.
 
@@ -405,6 +415,10 @@
 
   // True if the builtin has to avoid evaluating its arguments.
   bit nonEvaluating = 0;
+
+  // Use to override the suffix letter to make e.g.vfooq_p16
+  // with an override suffix letter of "p".
+  string overrideKindLetter = "";
 }
 
 // Sometimes you have to use two separate Intrinsic declarations to
@@ -433,6 +447,7 @@
   list<Type> Int16 = [s16, u16];
   list<Type> Int32 = [s32, u32];
   list<Type> Int64 = [s64, u64];
+  list<Type> Poly = [u8, u16]; // Actually p8 and p16
   list<Type> All8 = Int8;
   list<Type> All16 = Int16 # [f16];
   list<Type> All32 = Int32 # [f32];
diff --git a/clang/test/CodeGen/arm-mve-intrinsics/vmullbq.c b/clang/test/CodeGen/arm-mve-intrinsics/vmullbq.c
new file mode 100644
--- /dev/null
+++ b/clang/test/CodeGen/arm-mve-intrinsics/vmullbq.c
@@ -0,0 +1,125 @@
+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
+// RUN: %clang_cc1 -triple thumbv8.1m.main-arm-none-eabi -target-feature +mve.fp -mfloat-abi hard -fallow-half-arguments-and-returns -O0 -disable-O0-optnone -S -emit-llvm -o - %s | opt -S -mem2reg | FileCheck %s
+// RUN: %clang_cc1 -triple thumbv8.1m.main-arm-none-eabi -target-feature +mve.fp -mfloat-abi hard -fallow-half-arguments-and-returns -O0 -disable-O0-optnone -DPOLYMORPHIC -S -emit-llvm -o - %s | opt -S -mem2reg | FileCheck %s
+
+#include <arm_mve.h>
+
+// CHECK-LABEL: @test_vmullbq_int_u8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = call <8 x i16> @llvm.arm.mve.vmull.v8i16.v16i8(<16 x i8> [[A:%.*]], <16 x i8> [[B:%.*]], i32 0)
+// CHECK-NEXT:    ret <8 x i16> [[TMP0]]
+//
+int16x8_t test_vmullbq_int_u8(uint8x16_t a, uint8x16_t b)
+{
+#ifdef POLYMORPHIC
+    return vmullbq_int(a, b);
+#else /* POLYMORPHIC */
+    return vmullbq_int_u8(a, b);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmullbq_int_s16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = call <4 x i32> @llvm.arm.mve.vmull.v4i32.v8i16(<8 x i16> [[A:%.*]], <8 x i16> [[B:%.*]], i32 0)
+// CHECK-NEXT:    ret <4 x i32> [[TMP0]]
+//
+int32x4_t test_vmullbq_int_s16(int16x8_t a, int16x8_t b)
+{
+#ifdef POLYMORPHIC
+    return vmullbq_int(a, b);
+#else /* POLYMORPHIC */
+    return vmullbq_int_s16(a, b);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmullbq_int_u32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = call <2 x i64> @llvm.arm.mve.vmull.v2i64.v4i32(<4 x i32> [[A:%.*]], <4 x i32> [[B:%.*]], i32 0)
+// CHECK-NEXT:    ret <2 x i64> [[TMP0]]
+//
+uint64x2_t test_vmullbq_int_u32(uint32x4_t a, uint32x4_t b)
+{
+#ifdef POLYMORPHIC
+    return vmullbq_int(a, b);
+#else /* POLYMORPHIC */
+    return vmullbq_int_u32(a, b);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmullbq_poly_p16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = call <4 x i32> @llvm.arm.mve.vmull.poly.v4i32.v8i16(<8 x i16> [[A:%.*]], <8 x i16> [[B:%.*]], i32 0)
+// CHECK-NEXT:    ret <4 x i32> [[TMP0]]
+//
+uint32x4_t test_vmullbq_poly_p16(uint16x8_t a, uint16x8_t b)
+{
+#ifdef POLYMORPHIC
+    return vmullbq_poly(a, b);
+#else /* POLYMORPHIC */
+    return vmullbq_poly_p16(a, b);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmullbq_int_m_s8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
+// CHECK-NEXT:    [[TMP1:%.*]] = call <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32 [[TMP0]])
+// CHECK-NEXT:    [[TMP2:%.*]] = call <8 x i16> @llvm.arm.mve.mull.int.predicated.v8i16.v16i8.v16i1(<16 x i8> [[A:%.*]], <16 x i8> [[B:%.*]], i32 0, <16 x i1> [[TMP1]], <16 x i8> [[INACTIVE:%.*]])
+// CHECK-NEXT:    ret <8 x i16> [[TMP2]]
+//
+int16x8_t test_vmullbq_int_m_s8(int8x16_t inactive, int8x16_t a, int8x16_t b, mve_pred16_t p)
+{
+#ifdef POLYMORPHIC
+    return vmullbq_int_m(inactive, a, b, p);
+#else /* POLYMORPHIC */
+    return vmullbq_int_m_s8(inactive, a, b, p);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmullbq_int_m_u16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
+// CHECK-NEXT:    [[TMP1:%.*]] = call <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32 [[TMP0]])
+// CHECK-NEXT:    [[TMP2:%.*]] = call <4 x i32> @llvm.arm.mve.mull.int.predicated.v4i32.v8i16.v8i1(<8 x i16> [[A:%.*]], <8 x i16> [[B:%.*]], i32 0, <8 x i1> [[TMP1]], <8 x i16> [[INACTIVE:%.*]])
+// CHECK-NEXT:    ret <4 x i32> [[TMP2]]
+//
+uint32x4_t test_vmullbq_int_m_u16(uint16x8_t inactive, uint16x8_t a, uint16x8_t b, mve_pred16_t p)
+{
+#ifdef POLYMORPHIC
+    return vmullbq_int_m(inactive, a, b, p);
+#else /* POLYMORPHIC */
+    return vmullbq_int_m_u16(inactive, a, b, p);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmullbq_int_m_s32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
+// CHECK-NEXT:    [[TMP1:%.*]] = call <4 x i1> @llvm.arm.mve.pred.i2v.v4i1(i32 [[TMP0]])
+// CHECK-NEXT:    [[TMP2:%.*]] = call <2 x i64> @llvm.arm.mve.mull.int.predicated.v2i64.v4i32.v4i1(<4 x i32> [[A:%.*]], <4 x i32> [[B:%.*]], i32 0, <4 x i1> [[TMP1]], <4 x i32> [[INACTIVE:%.*]])
+// CHECK-NEXT:    ret <2 x i64> [[TMP2]]
+//
+int64x2_t test_vmullbq_int_m_s32(int32x4_t inactive, int32x4_t a, int32x4_t b, mve_pred16_t p)
+{
+#ifdef POLYMORPHIC
+    return vmullbq_int_m(inactive, a, b, p);
+#else /* POLYMORPHIC */
+    return vmullbq_int_m_s32(inactive, a, b, p);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmullbq_poly_m_p8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
+// CHECK-NEXT:    [[TMP1:%.*]] = call <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32 [[TMP0]])
+// CHECK-NEXT:    [[TMP2:%.*]] = call <8 x i16> @llvm.arm.mve.mull.poly.predicated.v8i16.v16i8.v16i1(<16 x i8> [[A:%.*]], <16 x i8> [[B:%.*]], i32 0, <16 x i1> [[TMP1]], <16 x i8> [[INACTIVE:%.*]])
+// CHECK-NEXT:    ret <8 x i16> [[TMP2]]
+//
+uint16x8_t test_vmullbq_poly_m_p8(uint8x16_t inactive, uint8x16_t a, uint8x16_t b, mve_pred16_t p)
+{
+#ifdef POLYMORPHIC
+    return vmullbq_poly_m(inactive, a, b, p);
+#else /* POLYMORPHIC */
+    return vmullbq_poly_m_p8(inactive, a, b, p);
+#endif /* POLYMORPHIC */
+}
diff --git a/clang/test/CodeGen/arm-mve-intrinsics/vmulltq.c b/clang/test/CodeGen/arm-mve-intrinsics/vmulltq.c
new file mode 100644
--- /dev/null
+++ b/clang/test/CodeGen/arm-mve-intrinsics/vmulltq.c
@@ -0,0 +1,125 @@
+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
+// RUN: %clang_cc1 -triple thumbv8.1m.main-arm-none-eabi -target-feature +mve.fp -mfloat-abi hard -fallow-half-arguments-and-returns -O0 -disable-O0-optnone -S -emit-llvm -o - %s | opt -S -mem2reg | FileCheck %s
+// RUN: %clang_cc1 -triple thumbv8.1m.main-arm-none-eabi -target-feature +mve.fp -mfloat-abi hard -fallow-half-arguments-and-returns -O0 -disable-O0-optnone -DPOLYMORPHIC -S -emit-llvm -o - %s | opt -S -mem2reg | FileCheck %s
+
+#include <arm_mve.h>
+
+// CHECK-LABEL: @test_vmulltq_int_u8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = call <8 x i16> @llvm.arm.mve.vmull.v8i16.v16i8(<16 x i8> [[A:%.*]], <16 x i8> [[B:%.*]], i32 1)
+// CHECK-NEXT:    ret <8 x i16> [[TMP0]]
+//
+int16x8_t test_vmulltq_int_u8(uint8x16_t a, uint8x16_t b)
+{
+#ifdef POLYMORPHIC
+    return vmulltq_int(a, b);
+#else /* POLYMORPHIC */
+    return vmulltq_int_u8(a, b);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmulltq_int_s16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = call <4 x i32> @llvm.arm.mve.vmull.v4i32.v8i16(<8 x i16> [[A:%.*]], <8 x i16> [[B:%.*]], i32 1)
+// CHECK-NEXT:    ret <4 x i32> [[TMP0]]
+//
+int32x4_t test_vmulltq_int_s16(int16x8_t a, int16x8_t b)
+{
+#ifdef POLYMORPHIC
+    return vmulltq_int(a, b);
+#else /* POLYMORPHIC */
+    return vmulltq_int_s16(a, b);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmulltq_int_u32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = call <2 x i64> @llvm.arm.mve.vmull.v2i64.v4i32(<4 x i32> [[A:%.*]], <4 x i32> [[B:%.*]], i32 1)
+// CHECK-NEXT:    ret <2 x i64> [[TMP0]]
+//
+uint64x2_t test_vmulltq_int_u32(uint32x4_t a, uint32x4_t b)
+{
+#ifdef POLYMORPHIC
+    return vmulltq_int(a, b);
+#else /* POLYMORPHIC */
+    return vmulltq_int_u32(a, b);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmulltq_poly_p16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = call <4 x i32> @llvm.arm.mve.vmull.poly.v4i32.v8i16(<8 x i16> [[A:%.*]], <8 x i16> [[B:%.*]], i32 1)
+// CHECK-NEXT:    ret <4 x i32> [[TMP0]]
+//
+uint32x4_t test_vmulltq_poly_p16(uint16x8_t a, uint16x8_t b)
+{
+#ifdef POLYMORPHIC
+    return vmulltq_poly(a, b);
+#else /* POLYMORPHIC */
+    return vmulltq_poly_p16(a, b);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmulltq_int_m_s8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
+// CHECK-NEXT:    [[TMP1:%.*]] = call <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32 [[TMP0]])
+// CHECK-NEXT:    [[TMP2:%.*]] = call <8 x i16> @llvm.arm.mve.mull.int.predicated.v8i16.v16i8.v16i1(<16 x i8> [[A:%.*]], <16 x i8> [[B:%.*]], i32 1, <16 x i1> [[TMP1]], <16 x i8> [[INACTIVE:%.*]])
+// CHECK-NEXT:    ret <8 x i16> [[TMP2]]
+//
+int16x8_t test_vmulltq_int_m_s8(int8x16_t inactive, int8x16_t a, int8x16_t b, mve_pred16_t p)
+{
+#ifdef POLYMORPHIC
+    return vmulltq_int_m(inactive, a, b, p);
+#else /* POLYMORPHIC */
+    return vmulltq_int_m_s8(inactive, a, b, p);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmulltq_int_m_u16(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
+// CHECK-NEXT:    [[TMP1:%.*]] = call <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32 [[TMP0]])
+// CHECK-NEXT:    [[TMP2:%.*]] = call <4 x i32> @llvm.arm.mve.mull.int.predicated.v4i32.v8i16.v8i1(<8 x i16> [[A:%.*]], <8 x i16> [[B:%.*]], i32 1, <8 x i1> [[TMP1]], <8 x i16> [[INACTIVE:%.*]])
+// CHECK-NEXT:    ret <4 x i32> [[TMP2]]
+//
+uint32x4_t test_vmulltq_int_m_u16(uint16x8_t inactive, uint16x8_t a, uint16x8_t b, mve_pred16_t p)
+{
+#ifdef POLYMORPHIC
+    return vmulltq_int_m(inactive, a, b, p);
+#else /* POLYMORPHIC */
+    return vmulltq_int_m_u16(inactive, a, b, p);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmulltq_int_m_s32(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
+// CHECK-NEXT:    [[TMP1:%.*]] = call <4 x i1> @llvm.arm.mve.pred.i2v.v4i1(i32 [[TMP0]])
+// CHECK-NEXT:    [[TMP2:%.*]] = call <2 x i64> @llvm.arm.mve.mull.int.predicated.v2i64.v4i32.v4i1(<4 x i32> [[A:%.*]], <4 x i32> [[B:%.*]], i32 1, <4 x i1> [[TMP1]], <4 x i32> [[INACTIVE:%.*]])
+// CHECK-NEXT:    ret <2 x i64> [[TMP2]]
+//
+int64x2_t test_vmulltq_int_m_s32(int32x4_t inactive, int32x4_t a, int32x4_t b, mve_pred16_t p)
+{
+#ifdef POLYMORPHIC
+    return vmulltq_int_m(inactive, a, b, p);
+#else /* POLYMORPHIC */
+    return vmulltq_int_m_s32(inactive, a, b, p);
+#endif /* POLYMORPHIC */
+}
+
+// CHECK-LABEL: @test_vmulltq_poly_m_p8(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[P:%.*]] to i32
+// CHECK-NEXT:    [[TMP1:%.*]] = call <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32 [[TMP0]])
+// CHECK-NEXT:    [[TMP2:%.*]] = call <8 x i16> @llvm.arm.mve.mull.poly.predicated.v8i16.v16i8.v16i1(<16 x i8> [[A:%.*]], <16 x i8> [[B:%.*]], i32 1, <16 x i1> [[TMP1]], <16 x i8> [[INACTIVE:%.*]])
+// CHECK-NEXT:    ret <8 x i16> [[TMP2]]
+//
+uint16x8_t test_vmulltq_poly_m_p8(uint8x16_t inactive, uint8x16_t a, uint8x16_t b, mve_pred16_t p)
+{
+#ifdef POLYMORPHIC
+    return vmulltq_poly_m(inactive, a, b, p);
+#else /* POLYMORPHIC */
+    return vmulltq_poly_m_p8(inactive, a, b, p);
+#endif /* POLYMORPHIC */
+}
diff --git a/clang/utils/TableGen/MveEmitter.cpp b/clang/utils/TableGen/MveEmitter.cpp
--- a/clang/utils/TableGen/MveEmitter.cpp
+++ b/clang/utils/TableGen/MveEmitter.cpp
@@ -143,7 +143,7 @@
   virtual std::string llvmName() const {
     PrintFatalError("no LLVM type name available for type " + cName());
   }
-  virtual std::string acleSuffix() const {
+  virtual std::string acleSuffix(std::string) const {
     PrintFatalError("no ACLE suffix available for this type");
   }
 };
@@ -180,7 +180,7 @@
   std::string cName() const override { return "void"; }
 
   static bool classof(const Type *T) { return T->typeKind() == TypeKind::Void; }
-  std::string acleSuffix() const override { return ""; }
+  std::string acleSuffix(std::string) const override { return ""; }
 };
 
 class PointerType : public Type {
@@ -266,8 +266,9 @@
     }
     return "Int" + utostr(Bits) + "Ty";
   }
-  std::string acleSuffix() const override {
-    return "_" + toLetter(Kind) + utostr(Bits);
+  std::string acleSuffix(std::string overrideLetter) const override {
+    return "_" + (overrideLetter.size() ? overrideLetter : toLetter(Kind))
+               + utostr(Bits);
   }
   bool isInteger() const { return Kind != ScalarTypeKind::Float; }
   bool requiresFloat() const override { return !isInteger(); }
@@ -1093,6 +1094,16 @@
     PrintFatalError("Cannot find a type to satisfy CopyKind");
   }
 
+  if (Op->getName() == "CTO_DoubleSize") {
+    const ScalarType *STKind = cast<ScalarType>(getType(D->getArg(0), Param));
+    for (const auto &kv : ScalarTypes) {
+      const ScalarType *RT = kv.second.get();
+      if (RT->kind() == STKind->kind() && RT->sizeInBits() == 2*STKind->sizeInBits())
+        return RT;
+    }
+    PrintFatalError("Cannot find a type to satisfy DoubleSize");
+  }
+
   PrintFatalError("Bad operator in type dag expression");
 }
 
@@ -1251,7 +1262,8 @@
   StringRef BaseName =
       (R->isSubClassOf("NameOverride") ? R->getValueAsString("basename")
                                        : R->getName());
-  FullName = (Twine(BaseName) + Param->acleSuffix()).str();
+  StringRef overrideLetter = R->getValueAsString("overrideKindLetter");
+  FullName = (Twine(BaseName) + Param->acleSuffix(overrideLetter)).str();
 
   // Derive the intrinsic's polymorphic name, by removing components from the
   // full name as specified by its 'pnt' member ('polymorphic name type'),
diff --git a/llvm/include/llvm/IR/IntrinsicsARM.td b/llvm/include/llvm/IR/IntrinsicsARM.td
--- a/llvm/include/llvm/IR/IntrinsicsARM.td
+++ b/llvm/include/llvm/IR/IntrinsicsARM.td
@@ -840,6 +840,14 @@
 def int_arm_mve_rmulh_predicated: Intrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
+def int_arm_mve_mull_int_predicated: Intrinsic<[llvm_anyvector_ty],
+   [llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty, llvm_anyvector_ty,
+    LLVMMatchType<1>],
+   [IntrNoMem]>;
+def int_arm_mve_mull_poly_predicated: Intrinsic<[llvm_anyvector_ty],
+   [llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty, llvm_anyvector_ty,
+    LLVMMatchType<1>],
+   [IntrNoMem]>;
 
 defm int_arm_mve_minv: IntrinsicSignSuffix<[llvm_i32_ty],
    [llvm_i32_ty, llvm_anyvector_ty], [IntrNoMem]>;
@@ -928,6 +936,12 @@
 def int_arm_mve_vrmulh: Intrinsic<
    [llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>], [IntrNoMem]>;
+def int_arm_mve_vmull: Intrinsic<
+   [llvm_anyvector_ty],
+   [llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty], [IntrNoMem]>;
+def int_arm_mve_vmull_poly: Intrinsic<
+   [llvm_anyvector_ty],
+   [llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty], [IntrNoMem]>;
 
 // Intrinsic with a predicated and a non-predicated case. The predicated case
 // has two additional parameters: inactive (the value for inactive lanes, can
diff --git a/llvm/lib/Target/ARM/ARMInstrMVE.td b/llvm/lib/Target/ARM/ARMInstrMVE.td
--- a/llvm/lib/Target/ARM/ARMInstrMVE.td
+++ b/llvm/lib/Target/ARM/ARMInstrMVE.td
@@ -277,12 +277,17 @@
 
 // A family of classes wrapping up information about the vector types
 // used by MVE.
-class MVEVectorVTInfo<ValueType vec, ValueType pred, bits<2> size,
-                      string suffixletter, bit unsigned> {
+class MVEVectorVTInfo<ValueType vec, ValueType dblvec, ValueType pred,
+                      bits<2> size, string suffixletter, bit unsigned> {
   // The LLVM ValueType representing the vector, so we can use it in
   // ISel patterns.
   ValueType Vec = vec;
 
+  // The LLVM ValueType representing a vector with elements double the size
+  // of those in Vec, so we can use it in ISel patterns. It is up to the
+  // invoker of this class to ensure that this is a correct choice.
+  ValueType DblVec = dblvec;
+
   // An LLVM ValueType representing a corresponding vector of
   // predicate bits, for use in ISel patterns that handle an IR
   // intrinsic describing the predicated form of the instruction.
@@ -309,34 +314,40 @@
 
   // The suffix used in assembly language on an instruction operating
   // on this lane if it only cares about number of bits.
-  string BitsSuffix = !cast<string>(LaneBits);
+  string BitsSuffix = !if(!eq(suffixletter, "p"),
+                          !if(!eq(unsigned, 0b0), "8", "16"),
+                          !cast<string>(LaneBits));
 
   // The suffix used on an instruction that mentions the whole type.
   string Suffix = suffixletter ## BitsSuffix;
 }
 
 // Integer vector types that don't treat signed and unsigned differently.
-def MVE_v16i8 : MVEVectorVTInfo<v16i8, v16i1, 0b00, "i",  ?>;
-def MVE_v8i16 : MVEVectorVTInfo<v8i16, v8i1,  0b01, "i", ?>;
-def MVE_v4i32 : MVEVectorVTInfo<v4i32, v4i1,  0b10, "i", ?>;
-def MVE_v2i64 : MVEVectorVTInfo<v2i64, v4i1,  0b11, "i", ?>;
+def MVE_v16i8 : MVEVectorVTInfo<v16i8, v8i16, v16i1, 0b00, "i", ?>;
+def MVE_v8i16 : MVEVectorVTInfo<v8i16, v4i32, v8i1,  0b01, "i", ?>;
+def MVE_v4i32 : MVEVectorVTInfo<v4i32, v2i64, v4i1,  0b10, "i", ?>;
+def MVE_v2i64 : MVEVectorVTInfo<v2i64, ?,     v4i1,  0b11, "i", ?>;
 
 // Explicitly signed and unsigned integer vectors. They map to the
 // same set of LLVM ValueTypes as above, but are represented
 // differently in assembly and instruction encodings.
-def MVE_v16s8 : MVEVectorVTInfo<v16i8, v16i1, 0b00, "s",  0b0>;
-def MVE_v8s16 : MVEVectorVTInfo<v8i16, v8i1,  0b01, "s", 0b0>;
-def MVE_v4s32 : MVEVectorVTInfo<v4i32, v4i1,  0b10, "s", 0b0>;
-def MVE_v2s64 : MVEVectorVTInfo<v2i64, v4i1,  0b11, "s", 0b0>;
-def MVE_v16u8 : MVEVectorVTInfo<v16i8, v16i1, 0b00, "u",  0b1>;
-def MVE_v8u16 : MVEVectorVTInfo<v8i16, v8i1,  0b01, "u", 0b1>;
-def MVE_v4u32 : MVEVectorVTInfo<v4i32, v4i1,  0b10, "u", 0b1>;
-def MVE_v2u64 : MVEVectorVTInfo<v2i64, v4i1,  0b11, "u", 0b1>;
+def MVE_v16s8 : MVEVectorVTInfo<v16i8, v8i16, v16i1, 0b00, "s", 0b0>;
+def MVE_v8s16 : MVEVectorVTInfo<v8i16, v4i32, v8i1,  0b01, "s", 0b0>;
+def MVE_v4s32 : MVEVectorVTInfo<v4i32, v2i64, v4i1,  0b10, "s", 0b0>;
+def MVE_v2s64 : MVEVectorVTInfo<v2i64, ?,     v4i1,  0b11, "s", 0b0>;
+def MVE_v16u8 : MVEVectorVTInfo<v16i8, v8i16, v16i1, 0b00, "u", 0b1>;
+def MVE_v8u16 : MVEVectorVTInfo<v8i16, v4i32, v8i1,  0b01, "u", 0b1>;
+def MVE_v4u32 : MVEVectorVTInfo<v4i32, v2i64, v4i1,  0b10, "u", 0b1>;
+def MVE_v2u64 : MVEVectorVTInfo<v2i64, ?,     v4i1,  0b11, "u", 0b1>;
 
 // FP vector types.
-def MVE_v8f16 : MVEVectorVTInfo<v8f16, v8i1,  0b01, "f", ?>;
-def MVE_v4f32 : MVEVectorVTInfo<v4f32, v4i1,  0b10, "f", ?>;
-def MVE_v2f64 : MVEVectorVTInfo<v2f64, v4i1,  0b11, "f", ?>;
+def MVE_v8f16 : MVEVectorVTInfo<v8f16, v4f32, v8i1,  0b01, "f", ?>;
+def MVE_v4f32 : MVEVectorVTInfo<v4f32, v2f64, v4i1,  0b10, "f", ?>;
+def MVE_v2f64 : MVEVectorVTInfo<v2f64, ?,     v4i1,  0b11, "f", ?>;
+
+// Polynomial vector types.
+def MVE_v16p8 : MVEVectorVTInfo<v16i8, v8i16, v16i1, 0b11, "p", 0b0>;
+def MVE_v8p16 : MVEVectorVTInfo<v8i16, v4i32, v8i1,  0b11, "p", 0b1>;
 
 // --------- Start of base classes for the instructions themselves
 
@@ -3616,24 +3627,71 @@
   let Inst{0} = 0b0;
 }
 
-multiclass MVE_VMULL_multi<string iname, string suffix,
-                           bit bit_28, bits<2> bits_21_20, string cstr=""> {
-  def bh : MVE_VMULL<iname # "b", suffix, bit_28, bits_21_20, 0b0, cstr>;
-  def th : MVE_VMULL<iname # "t", suffix, bit_28, bits_21_20, 0b1, cstr>;
-}
+multiclass MVE_VMULL_m<MVEVectorVTInfo VTI,
+                       SDNode unpred_op, Intrinsic pred_int,
+                       bit Top, string cstr=""> {
+  def "" : MVE_VMULL<"vmull" # !if(Top, "t", "b"), VTI.Suffix, VTI.Unsigned,
+                     VTI.Size, Top, cstr>;
+
+  let Predicates = [HasMVEInt] in {
+    // Unpredicated multiply
+    def : Pat<(VTI.DblVec (unpred_op (VTI.Vec MQPR:$Qm), (VTI.Vec MQPR:$Qn),
+                            (i32 Top))),
+              (VTI.DblVec (!cast<Instruction>(NAME)
+                            (VTI.Vec MQPR:$Qm), (VTI.Vec MQPR:$Qn)))>;
 
-// For integer multiplies, bits 21:20 encode size, and bit 28 signedness.
-// For polynomial multiplies, bits 21:20 take the unused value 0b11, and
-// bit 28 switches to encoding the size.
+    // Predicated multiply
+    def : Pat<(VTI.DblVec (pred_int (VTI.Vec MQPR:$Qm), (VTI.Vec MQPR:$Qn),
+                            (i32 Top),
+                            (VTI.Pred VCCR:$mask), (VTI.Vec MQPR:$inactive))),
+              (VTI.DblVec (!cast<Instruction>(NAME)
+                            (VTI.Vec MQPR:$Qm), (VTI.Vec MQPR:$Qn),
+                            ARMVCCThen, (VTI.Pred VCCR:$mask),
+                            (VTI.Vec MQPR:$inactive)))>;
+  }
+}
 
-defm MVE_VMULLs8  : MVE_VMULL_multi<"vmull", "s8",  0b0, 0b00>;
-defm MVE_VMULLs16 : MVE_VMULL_multi<"vmull", "s16", 0b0, 0b01>;
-defm MVE_VMULLs32 : MVE_VMULL_multi<"vmull", "s32", 0b0, 0b10, "@earlyclobber $Qd">;
-defm MVE_VMULLu8  : MVE_VMULL_multi<"vmull", "u8",  0b1, 0b00>;
-defm MVE_VMULLu16 : MVE_VMULL_multi<"vmull", "u16", 0b1, 0b01>;
-defm MVE_VMULLu32 : MVE_VMULL_multi<"vmull", "u32", 0b1, 0b10, "@earlyclobber $Qd">;
-defm MVE_VMULLp8  : MVE_VMULL_multi<"vmull", "p8",  0b0, 0b11>;
-defm MVE_VMULLp16 : MVE_VMULL_multi<"vmull", "p16", 0b1, 0b11>;
+// For polynomial multiplies, the size bits take the unused value 0b11, and
+// the unsigned bit switches to encoding the size.
+
+defm MVE_VMULLBs8  : MVE_VMULL_m<MVE_v16s8, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b0>;
+defm MVE_VMULLTs8  : MVE_VMULL_m<MVE_v16s8, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b1>;
+defm MVE_VMULLBs16 : MVE_VMULL_m<MVE_v8s16, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b0>;
+defm MVE_VMULLTs16 : MVE_VMULL_m<MVE_v8s16, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b1>;
+defm MVE_VMULLBs32 : MVE_VMULL_m<MVE_v4s32, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b0,
+                                 "@earlyclobber $Qd">;
+defm MVE_VMULLTs32 : MVE_VMULL_m<MVE_v4s32, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b1,
+                                 "@earlyclobber $Qd">;
+
+defm MVE_VMULLBu8  : MVE_VMULL_m<MVE_v16u8, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b0>;
+defm MVE_VMULLTu8  : MVE_VMULL_m<MVE_v16u8, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b1>;
+defm MVE_VMULLBu16 : MVE_VMULL_m<MVE_v8u16, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b0>;
+defm MVE_VMULLTu16 : MVE_VMULL_m<MVE_v8u16, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b1>;
+defm MVE_VMULLBu32 : MVE_VMULL_m<MVE_v4u32, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b0,
+                                 "@earlyclobber $Qd">;
+defm MVE_VMULLTu32 : MVE_VMULL_m<MVE_v4u32, int_arm_mve_vmull,
+                                 int_arm_mve_mull_int_predicated, 0b1,
+                                 "@earlyclobber $Qd">;
+
+defm MVE_VMULLBp8  : MVE_VMULL_m<MVE_v16p8, int_arm_mve_vmull_poly,
+                                 int_arm_mve_mull_poly_predicated, 0b0>;
+defm MVE_VMULLTp8  : MVE_VMULL_m<MVE_v16p8, int_arm_mve_vmull_poly,
+                                 int_arm_mve_mull_poly_predicated, 0b1>;
+defm MVE_VMULLBp16 : MVE_VMULL_m<MVE_v8p16, int_arm_mve_vmull_poly,
+                                 int_arm_mve_mull_poly_predicated, 0b0>;
+defm MVE_VMULLTp16 : MVE_VMULL_m<MVE_v8p16, int_arm_mve_vmull_poly,
+                                 int_arm_mve_mull_poly_predicated, 0b1>;
 
 class MVE_VxMULH<string iname, string suffix, bit U, bits<2> size, bit round,
                  list<dag> pattern=[]>
diff --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
--- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -7895,10 +7895,10 @@
   case ARM::MVE_VQDMULLs32bh:
   case ARM::MVE_VQDMULLs32th:
   case ARM::MVE_VCMULf32:
-  case ARM::MVE_VMULLs32bh:
-  case ARM::MVE_VMULLs32th:
-  case ARM::MVE_VMULLu32bh:
-  case ARM::MVE_VMULLu32th: {
+  case ARM::MVE_VMULLBs32:
+  case ARM::MVE_VMULLTs32:
+  case ARM::MVE_VMULLBu32:
+  case ARM::MVE_VMULLTu32: {
     if (Operands[3]->getReg() == Operands[4]->getReg()) {
       return Error (Operands[3]->getStartLoc(),
                     "Qd register and Qn register can't be identical");
diff --git a/llvm/test/CodeGen/Thumb2/mve-intrinsics/vmullbq.ll b/llvm/test/CodeGen/Thumb2/mve-intrinsics/vmullbq.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/Thumb2/mve-intrinsics/vmullbq.ll
@@ -0,0 +1,121 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve.fp -verify-machineinstrs -o - %s | FileCheck %s
+
+define arm_aapcs_vfpcc <8 x i16> @test_vmullbq_int_u8(<16 x i8> %a, <16 x i8> %b) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmullbq_int_u8:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmullb.s8 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = tail call <8 x i16> @llvm.arm.mve.vmull.v8i16.v16i8(<16 x i8> %a, <16 x i8> %b, i32 0)
+  ret <8 x i16> %0
+}
+
+declare <8 x i16> @llvm.arm.mve.vmull.v8i16.v16i8(<16 x i8>, <16 x i8>, i32) #1
+
+define arm_aapcs_vfpcc <4 x i32> @test_vmullbq_int_s16(<8 x i16> %a, <8 x i16> %b) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmullbq_int_s16:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmullb.s16 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = tail call <4 x i32> @llvm.arm.mve.vmull.v4i32.v8i16(<8 x i16> %a, <8 x i16> %b, i32 0)
+  ret <4 x i32> %0
+}
+
+declare <4 x i32> @llvm.arm.mve.vmull.v4i32.v8i16(<8 x i16>, <8 x i16>, i32) #1
+
+define arm_aapcs_vfpcc <2 x i64> @test_vmullbq_int_u32(<4 x i32> %a, <4 x i32> %b) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmullbq_int_u32:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmullb.s32 q2, q0, q1
+; CHECK-NEXT:    vmov q0, q2
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = tail call <2 x i64> @llvm.arm.mve.vmull.v2i64.v4i32(<4 x i32> %a, <4 x i32> %b, i32 0)
+  ret <2 x i64> %0
+}
+
+declare <2 x i64> @llvm.arm.mve.vmull.v2i64.v4i32(<4 x i32>, <4 x i32>, i32) #1
+
+define arm_aapcs_vfpcc <4 x i32> @test_vmullbq_poly_p16(<8 x i16> %a, <8 x i16> %b) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmullbq_poly_p16:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmullb.p16 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = tail call <4 x i32> @llvm.arm.mve.vmull.poly.v4i32.v8i16(<8 x i16> %a, <8 x i16> %b, i32 0)
+  ret <4 x i32> %0
+}
+
+declare <4 x i32> @llvm.arm.mve.vmull.poly.v4i32.v8i16(<8 x i16>, <8 x i16>, i32) #1
+
+define arm_aapcs_vfpcc <8 x i16> @test_vmullbq_int_m_s8(<16 x i8> %inactive, <16 x i8> %a, <16 x i8> %b, i16 zeroext %p) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmullbq_int_m_s8:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpst
+; CHECK-NEXT:    vmullbt.s8 q0, q1, q2
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = zext i16 %p to i32
+  %1 = tail call <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32 %0)
+  %2 = tail call <8 x i16> @llvm.arm.mve.mull.int.predicated.v8i16.v16i8.v16i1(<16 x i8> %a, <16 x i8> %b, i32 0, <16 x i1> %1, <16 x i8> %inactive)
+  ret <8 x i16> %2
+}
+
+declare <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32) #1
+
+declare <8 x i16> @llvm.arm.mve.mull.int.predicated.v8i16.v16i8.v16i1(<16 x i8>, <16 x i8>, i32, <16 x i1>, <16 x i8>) #1
+
+define arm_aapcs_vfpcc <4 x i32> @test_vmullbq_int_m_u16(<8 x i16> %inactive, <8 x i16> %a, <8 x i16> %b, i16 zeroext %p) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmullbq_int_m_u16:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpst
+; CHECK-NEXT:    vmullbt.s16 q0, q1, q2
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = zext i16 %p to i32
+  %1 = tail call <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32 %0)
+  %2 = tail call <4 x i32> @llvm.arm.mve.mull.int.predicated.v4i32.v8i16.v8i1(<8 x i16> %a, <8 x i16> %b, i32 0, <8 x i1> %1, <8 x i16> %inactive)
+  ret <4 x i32> %2
+}
+
+declare <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32) #1
+
+declare <4 x i32> @llvm.arm.mve.mull.int.predicated.v4i32.v8i16.v8i1(<8 x i16>, <8 x i16>, i32, <8 x i1>, <8 x i16>) #1
+
+define arm_aapcs_vfpcc <2 x i64> @test_vmullbq_int_m_s32(<4 x i32> %inactive, <4 x i32> %a, <4 x i32> %b, i16 zeroext %p) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmullbq_int_m_s32:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpst
+; CHECK-NEXT:    vmullbt.s32 q0, q1, q2
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = zext i16 %p to i32
+  %1 = tail call <4 x i1> @llvm.arm.mve.pred.i2v.v4i1(i32 %0)
+  %2 = tail call <2 x i64> @llvm.arm.mve.mull.int.predicated.v2i64.v4i32.v4i1(<4 x i32> %a, <4 x i32> %b, i32 0, <4 x i1> %1, <4 x i32> %inactive)
+  ret <2 x i64> %2
+}
+
+declare <4 x i1> @llvm.arm.mve.pred.i2v.v4i1(i32) #1
+
+declare <2 x i64> @llvm.arm.mve.mull.int.predicated.v2i64.v4i32.v4i1(<4 x i32>, <4 x i32>, i32, <4 x i1>, <4 x i32>) #1
+
+define arm_aapcs_vfpcc <8 x i16> @test_vmullbq_poly_m_p8(<16 x i8> %inactive, <16 x i8> %a, <16 x i8> %b, i16 zeroext %p) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmullbq_poly_m_p8:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpst
+; CHECK-NEXT:    vmullbt.p8 q0, q1, q2
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = zext i16 %p to i32
+  %1 = tail call <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32 %0)
+  %2 = tail call <8 x i16> @llvm.arm.mve.mull.poly.predicated.v8i16.v16i8.v16i1(<16 x i8> %a, <16 x i8> %b, i32 0, <16 x i1> %1, <16 x i8> %inactive)
+  ret <8 x i16> %2
+}
+
+declare <8 x i16> @llvm.arm.mve.mull.poly.predicated.v8i16.v16i8.v16i1(<16 x i8>, <16 x i8>, i32, <16 x i1>, <16 x i8>) #1
diff --git a/llvm/test/CodeGen/Thumb2/mve-intrinsics/vmulltq.ll b/llvm/test/CodeGen/Thumb2/mve-intrinsics/vmulltq.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/Thumb2/mve-intrinsics/vmulltq.ll
@@ -0,0 +1,121 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve.fp -verify-machineinstrs -o - %s | FileCheck %s
+
+define arm_aapcs_vfpcc <8 x i16> @test_vmulltq_int_u8(<16 x i8> %a, <16 x i8> %b) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmulltq_int_u8:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmullt.s8 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = tail call <8 x i16> @llvm.arm.mve.vmull.v8i16.v16i8(<16 x i8> %a, <16 x i8> %b, i32 1)
+  ret <8 x i16> %0
+}
+
+declare <8 x i16> @llvm.arm.mve.vmull.v8i16.v16i8(<16 x i8>, <16 x i8>, i32) #1
+
+define arm_aapcs_vfpcc <4 x i32> @test_vmulltq_int_s16(<8 x i16> %a, <8 x i16> %b) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmulltq_int_s16:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmullt.s16 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = tail call <4 x i32> @llvm.arm.mve.vmull.v4i32.v8i16(<8 x i16> %a, <8 x i16> %b, i32 1)
+  ret <4 x i32> %0
+}
+
+declare <4 x i32> @llvm.arm.mve.vmull.v4i32.v8i16(<8 x i16>, <8 x i16>, i32) #1
+
+define arm_aapcs_vfpcc <2 x i64> @test_vmulltq_int_u32(<4 x i32> %a, <4 x i32> %b) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmulltq_int_u32:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmullt.s32 q2, q0, q1
+; CHECK-NEXT:    vmov q0, q2
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = tail call <2 x i64> @llvm.arm.mve.vmull.v2i64.v4i32(<4 x i32> %a, <4 x i32> %b, i32 1)
+  ret <2 x i64> %0
+}
+
+declare <2 x i64> @llvm.arm.mve.vmull.v2i64.v4i32(<4 x i32>, <4 x i32>, i32) #1
+
+define arm_aapcs_vfpcc <4 x i32> @test_vmulltq_poly_p16(<8 x i16> %a, <8 x i16> %b) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmulltq_poly_p16:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmullt.p16 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = tail call <4 x i32> @llvm.arm.mve.vmull.poly.v4i32.v8i16(<8 x i16> %a, <8 x i16> %b, i32 1)
+  ret <4 x i32> %0
+}
+
+declare <4 x i32> @llvm.arm.mve.vmull.poly.v4i32.v8i16(<8 x i16>, <8 x i16>, i32) #1
+
+define arm_aapcs_vfpcc <8 x i16> @test_vmulltq_int_m_s8(<16 x i8> %inactive, <16 x i8> %a, <16 x i8> %b, i16 zeroext %p) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmulltq_int_m_s8:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpst
+; CHECK-NEXT:    vmulltt.s8 q0, q1, q2
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = zext i16 %p to i32
+  %1 = tail call <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32 %0)
+  %2 = tail call <8 x i16> @llvm.arm.mve.mull.int.predicated.v8i16.v16i8.v16i1(<16 x i8> %a, <16 x i8> %b, i32 1, <16 x i1> %1, <16 x i8> %inactive)
+  ret <8 x i16> %2
+}
+
+declare <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32) #1
+
+declare <8 x i16> @llvm.arm.mve.mull.int.predicated.v8i16.v16i8.v16i1(<16 x i8>, <16 x i8>, i32, <16 x i1>, <16 x i8>) #1
+
+define arm_aapcs_vfpcc <4 x i32> @test_vmulltq_int_m_u16(<8 x i16> %inactive, <8 x i16> %a, <8 x i16> %b, i16 zeroext %p) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmulltq_int_m_u16:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpst
+; CHECK-NEXT:    vmulltt.s16 q0, q1, q2
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = zext i16 %p to i32
+  %1 = tail call <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32 %0)
+  %2 = tail call <4 x i32> @llvm.arm.mve.mull.int.predicated.v4i32.v8i16.v8i1(<8 x i16> %a, <8 x i16> %b, i32 1, <8 x i1> %1, <8 x i16> %inactive)
+  ret <4 x i32> %2
+}
+
+declare <8 x i1> @llvm.arm.mve.pred.i2v.v8i1(i32) #1
+
+declare <4 x i32> @llvm.arm.mve.mull.int.predicated.v4i32.v8i16.v8i1(<8 x i16>, <8 x i16>, i32, <8 x i1>, <8 x i16>) #1
+
+define arm_aapcs_vfpcc <2 x i64> @test_vmulltq_int_m_s32(<4 x i32> %inactive, <4 x i32> %a, <4 x i32> %b, i16 zeroext %p) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmulltq_int_m_s32:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpst
+; CHECK-NEXT:    vmulltt.s32 q0, q1, q2
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = zext i16 %p to i32
+  %1 = tail call <4 x i1> @llvm.arm.mve.pred.i2v.v4i1(i32 %0)
+  %2 = tail call <2 x i64> @llvm.arm.mve.mull.int.predicated.v2i64.v4i32.v4i1(<4 x i32> %a, <4 x i32> %b, i32 1, <4 x i1> %1, <4 x i32> %inactive)
+  ret <2 x i64> %2
+}
+
+declare <4 x i1> @llvm.arm.mve.pred.i2v.v4i1(i32) #1
+
+declare <2 x i64> @llvm.arm.mve.mull.int.predicated.v2i64.v4i32.v4i1(<4 x i32>, <4 x i32>, i32, <4 x i1>, <4 x i32>) #1
+
+define arm_aapcs_vfpcc <8 x i16> @test_vmulltq_poly_m_p8(<16 x i8> %inactive, <16 x i8> %a, <16 x i8> %b, i16 zeroext %p) local_unnamed_addr #0 {
+; CHECK-LABEL: test_vmulltq_poly_m_p8:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpst
+; CHECK-NEXT:    vmulltt.p8 q0, q1, q2
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = zext i16 %p to i32
+  %1 = tail call <16 x i1> @llvm.arm.mve.pred.i2v.v16i1(i32 %0)
+  %2 = tail call <8 x i16> @llvm.arm.mve.mull.poly.predicated.v8i16.v16i8.v16i1(<16 x i8> %a, <16 x i8> %b, i32 1, <16 x i1> %1, <16 x i8> %inactive)
+  ret <8 x i16> %2
+}
+
+declare <8 x i16> @llvm.arm.mve.mull.poly.predicated.v8i16.v16i8.v16i1(<16 x i8>, <16 x i8>, i32, <16 x i1>, <16 x i8>) #1