diff --git a/llvm/include/llvm/IR/IntrinsicsAArch64.td b/llvm/include/llvm/IR/IntrinsicsAArch64.td
--- a/llvm/include/llvm/IR/IntrinsicsAArch64.td
+++ b/llvm/include/llvm/IR/IntrinsicsAArch64.td
@@ -928,7 +928,7 @@
                  LLVMMatchType<0>,
                  LLVMMatchType<0>,
                  llvm_i32_ty],
-                [IntrNoMem]>;
+                [IntrNoMem, ImmArg<3>]>;
 
   class AdvSIMD_SVE_CMLA_Intrinsic
     : Intrinsic<[llvm_anyvector_ty],
@@ -937,7 +937,7 @@
                  LLVMMatchType<0>,
                  LLVMMatchType<0>,
                  llvm_i32_ty],
-                [IntrNoMem]>;
+                [IntrNoMem, ImmArg<4>]>;
 
   class AdvSIMD_SVE_CMLA_LANE_Intrinsic
     : Intrinsic<[llvm_anyvector_ty],
@@ -946,7 +946,7 @@
                  LLVMMatchType<0>,
                  llvm_i32_ty,
                  llvm_i32_ty],
-                [IntrNoMem, ImmArg<3>]>;
+                [IntrNoMem, ImmArg<3>, ImmArg<4>]>;
 
   class AdvSIMD_SVE_EXPA_Intrinsic
     : Intrinsic<[llvm_anyvector_ty],
@@ -1112,6 +1112,8 @@
   // NOTE: There is no relationship between these intrinsics beyond an attempt
   // to reuse currently identical class definitions.
   class AdvSIMD_SVE_LOGB_Intrinsic  : AdvSIMD_SVE_CNT_Intrinsic;
+  class AdvSIMD_SVE2_CADD_Intrinsic : AdvSIMD_2VectorArgIndexed_Intrinsic;
+  class AdvSIMD_SVE2_CMLA_Intrinsic : AdvSIMD_3VectorArgIndexed_Intrinsic;
 
   // This class of intrinsics are not intended to be useful within LLVM IR but
   // are instead here to support some of the more regid parts of the ACLE.
@@ -1777,6 +1779,25 @@
 def int_aarch64_sve_uadalp : SVE2_2VectorArg_Pred_Long_Intrinsic;
 
 //
+// SVE2 - Uniform complex integer arithmetic
+//
+
+def int_aarch64_sve_cadd_x           : AdvSIMD_SVE2_CADD_Intrinsic;
+def int_aarch64_sve_sqcadd_x         : AdvSIMD_SVE2_CADD_Intrinsic;
+def int_aarch64_sve_cmla_x           : AdvSIMD_SVE2_CMLA_Intrinsic;
+def int_aarch64_sve_cmla_lane_x      : AdvSIMD_SVE_CMLA_LANE_Intrinsic;
+def int_aarch64_sve_sqrdcmlah_x      : AdvSIMD_SVE2_CMLA_Intrinsic;
+def int_aarch64_sve_sqrdcmlah_lane_x : AdvSIMD_SVE_CMLA_LANE_Intrinsic;
+
+//
+// SVE2 - Widening complex integer arithmetic
+//
+
+def int_aarch64_sve_saddlbt   : SVE2_2VectorArg_Long_Intrinsic;
+def int_aarch64_sve_ssublbt   : SVE2_2VectorArg_Long_Intrinsic;
+def int_aarch64_sve_ssubltb   : SVE2_2VectorArg_Long_Intrinsic;
+
+//
 // SVE2 - Floating-point widening multiply-accumulate
 //
 
diff --git a/llvm/lib/Target/AArch64/AArch64InstrFormats.td b/llvm/lib/Target/AArch64/AArch64InstrFormats.td
--- a/llvm/lib/Target/AArch64/AArch64InstrFormats.td
+++ b/llvm/lib/Target/AArch64/AArch64InstrFormats.td
@@ -10277,15 +10277,15 @@
   let DiagnosticType = "InvalidComplexRotation" # Type;
   let Name = "ComplexRotation" # Type;
 }
-def complexrotateop : Operand<i32>, ImmLeaf<i32, [{ return Imm >= 0 && Imm <= 270;  }],
-                                                 SDNodeXForm<imm, [{
+def complexrotateop : Operand<i32>, TImmLeaf<i32, [{ return Imm >= 0 && Imm <= 270;  }],
+                                                  SDNodeXForm<imm, [{
   return CurDAG->getTargetConstant((N->getSExtValue() / 90), SDLoc(N), MVT::i32);
 }]>> {
   let ParserMatchClass = ComplexRotationOperand<90, 0, "Even">;
   let PrintMethod = "printComplexRotationOp<90, 0>";
 }
-def complexrotateopodd : Operand<i32>, ImmLeaf<i32, [{ return Imm >= 0 && Imm <= 270;  }],
-                                                 SDNodeXForm<imm, [{
+def complexrotateopodd : Operand<i32>, TImmLeaf<i32, [{ return Imm >= 0 && Imm <= 270;  }],
+                                                  SDNodeXForm<imm, [{
   return CurDAG->getTargetConstant(((N->getSExtValue() - 90) / 180), SDLoc(N), MVT::i32);
 }]>> {
   let ParserMatchClass = ComplexRotationOperand<180, 90, "Odd">;
diff --git a/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td b/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
--- a/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
+++ b/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
@@ -1448,13 +1448,13 @@
   defm CDOT_ZZZ : sve2_cintx_dot<"cdot">;
 
   // SVE2 complex integer multiply-add (indexed)
-  defm CMLA_ZZZI      : sve2_cmla_by_indexed_elem<0b0, "cmla">;
+  defm CMLA_ZZZI      : sve2_cmla_by_indexed_elem<0b0, "cmla", int_aarch64_sve_cmla_lane_x>;
   // SVE2 complex saturating multiply-add (indexed)
-  defm SQRDCMLAH_ZZZI : sve2_cmla_by_indexed_elem<0b1, "sqrdcmlah">;
+  defm SQRDCMLAH_ZZZI : sve2_cmla_by_indexed_elem<0b1, "sqrdcmlah", int_aarch64_sve_sqrdcmlah_lane_x>;
 
   // SVE2 complex integer multiply-add
-  defm CMLA_ZZZ      : sve2_int_cmla<0b0, "cmla">;
-  defm SQRDCMLAH_ZZZ : sve2_int_cmla<0b1, "sqrdcmlah">;
+  defm CMLA_ZZZ      : sve2_int_cmla<0b0, "cmla",      int_aarch64_sve_cmla_x>;
+  defm SQRDCMLAH_ZZZ : sve2_int_cmla<0b1, "sqrdcmlah", int_aarch64_sve_sqrdcmlah_x>;
 
   // SVE2 integer multiply long (indexed)
   defm SMULLB_ZZZI : sve2_int_mul_long_by_indexed_elem<0b000, "smullb">;
@@ -1605,8 +1605,8 @@
   defm URSRA_ZZI : sve2_int_bin_accum_shift_imm_right<0b11, "ursra", int_aarch64_sve_ursra>;
 
   // SVE2 complex integer add
-  defm CADD_ZZI   : sve2_int_cadd<0b0, "cadd">;
-  defm SQCADD_ZZI : sve2_int_cadd<0b1, "sqcadd">;
+  defm CADD_ZZI   : sve2_int_cadd<0b0, "cadd",   int_aarch64_sve_cadd_x>;
+  defm SQCADD_ZZI : sve2_int_cadd<0b1, "sqcadd", int_aarch64_sve_sqcadd_x>;
 
   // SVE2 integer absolute difference and accumulate
   defm SABA_ZZZ : sve2_int_absdiff_accum<0b0, "saba", int_aarch64_sve_saba>;
@@ -1681,9 +1681,9 @@
   defm USHLLT_ZZI : sve2_bitwise_shift_left_long<0b11, "ushllt">;
 
   // SVE2 integer add/subtract interleaved long
-  defm SADDLBT_ZZZ : sve2_misc_int_addsub_long_interleaved<0b00, "saddlbt">;
-  defm SSUBLBT_ZZZ : sve2_misc_int_addsub_long_interleaved<0b10, "ssublbt">;
-  defm SSUBLTB_ZZZ : sve2_misc_int_addsub_long_interleaved<0b11, "ssubltb">;
+  defm SADDLBT_ZZZ : sve2_misc_int_addsub_long_interleaved<0b00, "saddlbt", int_aarch64_sve_saddlbt>;
+  defm SSUBLBT_ZZZ : sve2_misc_int_addsub_long_interleaved<0b10, "ssublbt", int_aarch64_sve_ssublbt>;
+  defm SSUBLTB_ZZZ : sve2_misc_int_addsub_long_interleaved<0b11, "ssubltb", int_aarch64_sve_ssubltb>;
 
   // SVE2 histogram generation (segment)
   def HISTSEG_ZZZ : sve2_hist_gen_segment<"histseg", int_aarch64_sve_histseg>;
diff --git a/llvm/lib/Target/AArch64/SVEInstrFormats.td b/llvm/lib/Target/AArch64/SVEInstrFormats.td
--- a/llvm/lib/Target/AArch64/SVEInstrFormats.td
+++ b/llvm/lib/Target/AArch64/SVEInstrFormats.td
@@ -2551,11 +2551,16 @@
 // SVE2 Complex Multiply-Add Group
 //===----------------------------------------------------------------------===//
 
-multiclass sve2_int_cmla<bit opc, string asm> {
+multiclass sve2_int_cmla<bit opc, string asm, SDPatternOperator op> {
   def _B : sve2_complex_int_arith<0b00, { 0b001, opc }, asm, ZPR8, ZPR8>;
   def _H : sve2_complex_int_arith<0b01, { 0b001, opc }, asm, ZPR16, ZPR16>;
   def _S : sve2_complex_int_arith<0b10, { 0b001, opc }, asm, ZPR32, ZPR32>;
   def _D : sve2_complex_int_arith<0b11, { 0b001, opc }, asm, ZPR64, ZPR64>;
+
+  def : SVE_4_Op_Imm_Pat<nxv16i8, op, nxv16i8, nxv16i8, nxv16i8, i32, complexrotateop, !cast<Instruction>(NAME # _B)>;
+  def : SVE_4_Op_Imm_Pat<nxv8i16, op, nxv8i16, nxv8i16, nxv8i16, i32, complexrotateop, !cast<Instruction>(NAME # _H)>;
+  def : SVE_4_Op_Imm_Pat<nxv4i32, op, nxv4i32, nxv4i32, nxv4i32, i32, complexrotateop, !cast<Instruction>(NAME # _S)>;
+  def : SVE_4_Op_Imm_Pat<nxv2i64, op, nxv2i64, nxv2i64, nxv2i64, i32, complexrotateop, !cast<Instruction>(NAME # _D)>;
 }
 
 //===----------------------------------------------------------------------===//
@@ -2603,19 +2608,28 @@
 // SVE2 Complex Multiply-Add - Indexed Group
 //===----------------------------------------------------------------------===//
 
-multiclass sve2_cmla_by_indexed_elem<bit opc, string asm> {
-  def _H : sve2_complex_int_arith_indexed<0b10, { 0b011, opc }, asm, ZPR16, ZPR16, ZPR3b16, VectorIndexS> {
+multiclass sve2_cmla_by_indexed_elem<bit opc, string asm,
+                                     SDPatternOperator op> {
+  def _H : sve2_complex_int_arith_indexed<0b10, { 0b011, opc }, asm, ZPR16, ZPR16, ZPR3b16, VectorIndexS32b> {
     bits<2> iop;
     bits<3> Zm;
     let Inst{20-19} = iop;
     let Inst{18-16} = Zm;
   }
-  def _S : sve2_complex_int_arith_indexed<0b11, { 0b011, opc }, asm, ZPR32, ZPR32, ZPR4b32, VectorIndexD> {
+  def _S : sve2_complex_int_arith_indexed<0b11, { 0b011, opc }, asm, ZPR32, ZPR32, ZPR4b32, VectorIndexD32b> {
     bit iop;
     bits<4> Zm;
     let Inst{20} = iop;
     let Inst{19-16} = Zm;
   }
+
+  def : Pat<(nxv8i16 (op (nxv8i16 ZPR16:$Op1), (nxv8i16 ZPR16:$Op2), (nxv8i16 ZPR16:$Op3),
+                         (i32 VectorIndexS32b_timm:$idx), (i32 complexrotateop:$imm))),
+            (!cast<Instruction>(NAME # "_H") ZPR16:$Op1, ZPR16:$Op2, ZPR16:$Op3, VectorIndexS32b_timm:$idx, complexrotateop:$imm)>;
+
+  def : Pat<(nxv4i32 (op (nxv4i32 ZPR32:$Op1), (nxv4i32 ZPR32:$Op2), (nxv4i32 ZPR32:$Op3),
+                         (i32 VectorIndexD32b_timm:$idx), (i32 complexrotateop:$imm))),
+            (!cast<Instruction>(NAME # "_S") ZPR32:$Op1, ZPR32:$Op2, ZPR32:$Op3, VectorIndexD32b_timm:$idx, complexrotateop:$imm)>;
 }
 
 //===----------------------------------------------------------------------===//
@@ -2905,10 +2919,15 @@
   def _D : sve2_misc<0b11, opc, asm, ZPR64, ZPR64>;
 }
 
-multiclass sve2_misc_int_addsub_long_interleaved<bits<2> opc, string asm> {
+multiclass sve2_misc_int_addsub_long_interleaved<bits<2> opc, string asm,
+                                                 SDPatternOperator op> {
   def _H : sve2_misc<0b01, { 0b00, opc }, asm, ZPR16, ZPR8>;
   def _S : sve2_misc<0b10, { 0b00, opc }, asm, ZPR32, ZPR16>;
   def _D : sve2_misc<0b11, { 0b00, opc }, asm, ZPR64, ZPR32>;
+
+  def : SVE_2_Op_Pat<nxv8i16, op, nxv16i8, nxv16i8, !cast<Instruction>(NAME # _H)>;
+  def : SVE_2_Op_Pat<nxv4i32, op, nxv8i16, nxv8i16, !cast<Instruction>(NAME # _S)>;
+  def : SVE_2_Op_Pat<nxv2i64, op, nxv4i32, nxv4i32, !cast<Instruction>(NAME # _D)>;
 }
 
 class sve2_bitwise_xor_interleaved<bits<2> sz, bits<1> opc, string asm,
@@ -3100,11 +3119,16 @@
   let ElementSize = ElementSizeNone;
 }
 
-multiclass sve2_int_cadd<bit opc, string asm> {
+multiclass sve2_int_cadd<bit opc, string asm, SDPatternOperator op> {
   def _B : sve2_int_cadd<0b00, opc, asm, ZPR8>;
   def _H : sve2_int_cadd<0b01, opc, asm, ZPR16>;
   def _S : sve2_int_cadd<0b10, opc, asm, ZPR32>;
   def _D : sve2_int_cadd<0b11, opc, asm, ZPR64>;
+
+  def : SVE_3_Op_Imm_Pat<nxv16i8, op, nxv16i8, nxv16i8, i32, complexrotateopodd, !cast<Instruction>(NAME # _B)>;
+  def : SVE_3_Op_Imm_Pat<nxv8i16, op, nxv8i16, nxv8i16, i32, complexrotateopodd, !cast<Instruction>(NAME # _H)>;
+  def : SVE_3_Op_Imm_Pat<nxv4i32, op, nxv4i32, nxv4i32, i32, complexrotateopodd, !cast<Instruction>(NAME # _S)>;
+  def : SVE_3_Op_Imm_Pat<nxv2i64, op, nxv2i64, nxv2i64, i32, complexrotateopodd, !cast<Instruction>(NAME # _D)>;
 }
 
 class sve2_int_absdiff_accum<bits<2> sz, bits<4> opc, string asm,
diff --git a/llvm/test/CodeGen/AArch64/sve2-intrinsics-uniform-complex-arith.ll b/llvm/test/CodeGen/AArch64/sve2-intrinsics-uniform-complex-arith.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/sve2-intrinsics-uniform-complex-arith.ll
@@ -0,0 +1,267 @@
+; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve2 < %s | FileCheck %s
+
+;
+; CADD
+;
+
+define <vscale x 16 x i8> @cadd_b(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b) {
+; CHECK-LABEL: cadd_b:
+; CHECK: cadd z0.b, z0.b, z1.b, #90
+; CHECK-NEXT: ret
+  %out = call <vscale x 16 x i8> @llvm.aarch64.sve.cadd.x.nxv16i8(<vscale x 16 x i8> %a,
+                                                                  <vscale x 16 x i8> %b,
+                                                                  i32 90)
+  ret <vscale x 16 x i8> %out
+}
+
+define <vscale x 8 x i16> @cadd_h(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b) {
+; CHECK-LABEL: cadd_h:
+; CHECK: cadd z0.h, z0.h, z1.h, #90
+; CHECK-NEXT: ret
+  %out = call <vscale x 8 x i16> @llvm.aarch64.sve.cadd.x.nxv8i16(<vscale x 8 x i16> %a,
+                                                                  <vscale x 8 x i16> %b,
+                                                                  i32 90)
+  ret <vscale x 8 x i16> %out
+}
+
+define <vscale x 4 x i32> @cadd_s(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b) {
+; CHECK-LABEL: cadd_s:
+; CHECK: cadd z0.s, z0.s, z1.s, #270
+; CHECK-NEXT: ret
+  %out = call <vscale x 4 x i32> @llvm.aarch64.sve.cadd.x.nxv4i32(<vscale x 4 x i32> %a,
+                                                                  <vscale x 4 x i32> %b,
+                                                                  i32 270)
+  ret <vscale x 4 x i32> %out
+}
+
+define <vscale x 2 x i64> @cadd_d(<vscale x 2 x i64> %a, <vscale x 2 x i64> %b) {
+; CHECK-LABEL: cadd_d:
+; CHECK: cadd z0.d, z0.d, z1.d, #270
+; CHECK-NEXT: ret
+  %out = call <vscale x 2 x i64> @llvm.aarch64.sve.cadd.x.nxv2i64(<vscale x 2 x i64> %a,
+                                                                  <vscale x 2 x i64> %b,
+                                                                  i32 270)
+  ret <vscale x 2 x i64> %out
+}
+
+;
+; SQCADD
+;
+
+define <vscale x 16 x i8> @sqcadd_b(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b) {
+; CHECK-LABEL: sqcadd_b:
+; CHECK: sqcadd z0.b, z0.b, z1.b, #90
+; CHECK-NEXT: ret
+  %out = call <vscale x 16 x i8> @llvm.aarch64.sve.sqcadd.x.nxv16i8(<vscale x 16 x i8> %a,
+                                                                    <vscale x 16 x i8> %b,
+                                                                    i32 90)
+  ret <vscale x 16 x i8> %out
+}
+
+define <vscale x 8 x i16> @sqcadd_h(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b) {
+; CHECK-LABEL: sqcadd_h:
+; CHECK: sqcadd z0.h, z0.h, z1.h, #90
+; CHECK-NEXT: ret
+  %out = call <vscale x 8 x i16> @llvm.aarch64.sve.sqcadd.x.nxv8i16(<vscale x 8 x i16> %a,
+                                                                    <vscale x 8 x i16> %b,
+                                                                    i32 90)
+  ret <vscale x 8 x i16> %out
+}
+
+define <vscale x 4 x i32> @sqcadd_s(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b) {
+; CHECK-LABEL: sqcadd_s:
+; CHECK: sqcadd z0.s, z0.s, z1.s, #270
+; CHECK-NEXT: ret
+  %out = call <vscale x 4 x i32> @llvm.aarch64.sve.sqcadd.x.nxv4i32(<vscale x 4 x i32> %a,
+                                                                    <vscale x 4 x i32> %b,
+                                                                    i32 270)
+  ret <vscale x 4 x i32> %out
+}
+
+define <vscale x 2 x i64> @sqcadd_d(<vscale x 2 x i64> %a, <vscale x 2 x i64> %b) {
+; CHECK-LABEL: sqcadd_d:
+; CHECK: sqcadd z0.d, z0.d, z1.d, #270
+; CHECK-NEXT: ret
+  %out = call <vscale x 2 x i64> @llvm.aarch64.sve.sqcadd.x.nxv2i64(<vscale x 2 x i64> %a,
+                                                                    <vscale x 2 x i64> %b,
+                                                                    i32 270)
+  ret <vscale x 2 x i64> %out
+}
+
+;
+; CMLA
+;
+
+define <vscale x 16 x i8> @cmla_b(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b, <vscale x 16 x i8> %c) {
+; CHECK-LABEL: cmla_b:
+; CHECK: cmla z0.b, z1.b, z2.b, #90
+; CHECK-NEXT: ret
+  %out = call <vscale x 16 x i8> @llvm.aarch64.sve.cmla.x.nxv16i8(<vscale x 16 x i8> %a,
+                                                                  <vscale x 16 x i8> %b,
+                                                                  <vscale x 16 x i8> %c,
+                                                                  i32 90)
+  ret <vscale x 16 x i8> %out
+}
+
+define <vscale x 8 x i16> @cmla_h(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b, <vscale x 8 x i16> %c) {
+; CHECK-LABEL: cmla_h:
+; CHECK: cmla z0.h, z1.h, z2.h, #180
+; CHECK-NEXT: ret
+  %out = call <vscale x 8 x i16> @llvm.aarch64.sve.cmla.x.nxv8i16(<vscale x 8 x i16> %a,
+                                                                  <vscale x 8 x i16> %b,
+                                                                  <vscale x 8 x i16> %c,
+                                                                  i32 180)
+  ret <vscale x 8 x i16> %out
+}
+
+define <vscale x 4 x i32> @cmla_s(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b, <vscale x 4 x i32> %c) {
+; CHECK-LABEL: cmla_s:
+; CHECK: cmla z0.s, z1.s, z2.s, #270
+; CHECK-NEXT: ret
+  %out = call <vscale x 4 x i32> @llvm.aarch64.sve.cmla.x.nxv4i32(<vscale x 4 x i32> %a,
+                                                                  <vscale x 4 x i32> %b,
+                                                                  <vscale x 4 x i32> %c,
+                                                                  i32 270)
+  ret <vscale x 4 x i32> %out
+}
+
+define <vscale x 2 x i64> @cmla_d(<vscale x 2 x i64> %a, <vscale x 2 x i64> %b, <vscale x 2 x i64> %c) {
+; CHECK-LABEL: cmla_d:
+; CHECK: cmla z0.d, z1.d, z2.d, #0
+; CHECK-NEXT: ret
+  %out = call <vscale x 2 x i64> @llvm.aarch64.sve.cmla.x.nxv2i64(<vscale x 2 x i64> %a,
+                                                                  <vscale x 2 x i64> %b,
+                                                                  <vscale x 2 x i64> %c,
+                                                                  i32 0)
+  ret <vscale x 2 x i64> %out
+}
+
+;
+; CMLA_LANE
+;
+
+define <vscale x 8 x i16> @cmla_lane_h(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b, <vscale x 8 x i16> %c) {
+; CHECK-LABEL: cmla_lane_h:
+; CHECK: cmla z0.h, z1.h, z2.h[1], #180
+; CHECK-NEXT: ret
+  %out = call <vscale x 8 x i16> @llvm.aarch64.sve.cmla.lane.x.nxv8i16(<vscale x 8 x i16> %a,
+                                                                       <vscale x 8 x i16> %b,
+                                                                       <vscale x 8 x i16> %c,
+                                                                       i32 1,
+                                                                       i32 180)
+  ret <vscale x 8 x i16> %out
+}
+
+define <vscale x 4 x i32> @cmla_lane_s(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b, <vscale x 4 x i32> %c) {
+; CHECK-LABEL: cmla_lane_s:
+; CHECK: cmla z0.s, z1.s, z2.s[0], #270
+; CHECK-NEXT: ret
+  %out = call <vscale x 4 x i32> @llvm.aarch64.sve.cmla.lane.x.nxv4i32(<vscale x 4 x i32> %a,
+                                                                       <vscale x 4 x i32> %b,
+                                                                       <vscale x 4 x i32> %c,
+                                                                       i32 0,
+                                                                       i32 270)
+  ret <vscale x 4 x i32> %out
+}
+
+;
+; QRDCMLAH
+;
+
+define <vscale x 16 x i8> @sqrdcmlah_b(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b, <vscale x 16 x i8> %c) {
+; CHECK-LABEL: sqrdcmlah_b:
+; CHECK: sqrdcmlah z0.b, z1.b, z2.b, #0
+; CHECK-NEXT: ret
+  %out = call <vscale x 16 x i8> @llvm.aarch64.sve.sqrdcmlah.x.nxv16i8(<vscale x 16 x i8> %a,
+                                                                       <vscale x 16 x i8> %b,
+                                                                       <vscale x 16 x i8> %c,
+                                                                       i32 0)
+  ret <vscale x 16 x i8> %out
+}
+
+define <vscale x 8 x i16> @sqrdcmlah_h(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b, <vscale x 8 x i16> %c) {
+; CHECK-LABEL: sqrdcmlah_h:
+; CHECK: sqrdcmlah z0.h, z1.h, z2.h, #90
+; CHECK-NEXT: ret
+  %out = call <vscale x 8 x i16> @llvm.aarch64.sve.sqrdcmlah.x.nxv8i16(<vscale x 8 x i16> %a,
+                                                                       <vscale x 8 x i16> %b,
+                                                                       <vscale x 8 x i16> %c,
+                                                                       i32 90)
+  ret <vscale x 8 x i16> %out
+}
+
+define <vscale x 4 x i32> @sqrdcmlah_s(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b, <vscale x 4 x i32> %c) {
+; CHECK-LABEL: sqrdcmlah_s:
+; CHECK: sqrdcmlah z0.s, z1.s, z2.s, #180
+; CHECK-NEXT: ret
+  %out = call <vscale x 4 x i32> @llvm.aarch64.sve.sqrdcmlah.x.nxv4i32(<vscale x 4 x i32> %a,
+                                                                       <vscale x 4 x i32> %b,
+                                                                       <vscale x 4 x i32> %c,
+                                                                       i32 180)
+  ret <vscale x 4 x i32> %out
+}
+
+define <vscale x 2 x i64> @sqrdcmlah_d(<vscale x 2 x i64> %a, <vscale x 2 x i64> %b, <vscale x 2 x i64> %c) {
+; CHECK-LABEL: sqrdcmlah_d:
+; CHECK: sqrdcmlah z0.d, z1.d, z2.d, #270
+; CHECK-NEXT: ret
+  %out = call <vscale x 2 x i64> @llvm.aarch64.sve.sqrdcmlah.x.nxv2i64(<vscale x 2 x i64> %a,
+                                                                       <vscale x 2 x i64> %b,
+                                                                       <vscale x 2 x i64> %c,
+                                                                       i32 270)
+  ret <vscale x 2 x i64> %out
+}
+
+;
+; QRDCMLAH_LANE
+;
+
+define <vscale x 8 x i16> @sqrdcmlah_lane_h(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b, <vscale x 8 x i16> %c) {
+; CHECK-LABEL: sqrdcmlah_lane_h:
+; CHECK: sqrdcmlah z0.h, z1.h, z2.h[1], #90
+; CHECK-NEXT: ret
+  %out = call <vscale x 8 x i16> @llvm.aarch64.sve.sqrdcmlah.lane.x.nxv8i16(<vscale x 8 x i16> %a,
+                                                                            <vscale x 8 x i16> %b,
+                                                                            <vscale x 8 x i16> %c,
+                                                                            i32 1,
+                                                                            i32 90)
+  ret <vscale x 8 x i16> %out
+}
+
+define <vscale x 4 x i32> @sqrdcmlah_lane_s(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b, <vscale x 4 x i32> %c) {
+; CHECK-LABEL: sqrdcmlah_lane_s:
+; CHECK: sqrdcmlah z0.s, z1.s, z2.s[0], #180
+; CHECK-NEXT: ret
+  %out = call <vscale x 4 x i32> @llvm.aarch64.sve.sqrdcmlah.lane.x.nxv4i32(<vscale x 4 x i32> %a,
+                                                                            <vscale x 4 x i32> %b,
+                                                                            <vscale x 4 x i32> %c,
+                                                                            i32 0,
+                                                                            i32 180)
+  ret <vscale x 4 x i32> %out
+}
+
+declare <vscale x 16 x i8> @llvm.aarch64.sve.cadd.x.nxv16i8(<vscale x 16 x i8>, <vscale x 16 x i8>, i32)
+declare <vscale x 8 x i16> @llvm.aarch64.sve.cadd.x.nxv8i16(<vscale x 8 x i16>, <vscale x 8 x i16>, i32)
+declare <vscale x 4 x i32> @llvm.aarch64.sve.cadd.x.nxv4i32(<vscale x 4 x i32>, <vscale x 4 x i32>, i32)
+declare <vscale x 2 x i64> @llvm.aarch64.sve.cadd.x.nxv2i64(<vscale x 2 x i64>, <vscale x 2 x i64>, i32)
+
+declare <vscale x 16 x i8> @llvm.aarch64.sve.sqcadd.x.nxv16i8(<vscale x 16 x i8>, <vscale x 16 x i8>, i32)
+declare <vscale x 8 x i16> @llvm.aarch64.sve.sqcadd.x.nxv8i16(<vscale x 8 x i16>, <vscale x 8 x i16>, i32)
+declare <vscale x 4 x i32> @llvm.aarch64.sve.sqcadd.x.nxv4i32(<vscale x 4 x i32>, <vscale x 4 x i32>, i32)
+declare <vscale x 2 x i64> @llvm.aarch64.sve.sqcadd.x.nxv2i64(<vscale x 2 x i64>, <vscale x 2 x i64>, i32)
+
+declare <vscale x 16 x i8> @llvm.aarch64.sve.cmla.x.nxv16i8(<vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, i32)
+declare <vscale x 8 x i16> @llvm.aarch64.sve.cmla.x.nxv8i16(<vscale x 8 x i16>, <vscale x 8 x i16>, <vscale x 8 x i16>, i32)
+declare <vscale x 4 x i32> @llvm.aarch64.sve.cmla.x.nxv4i32(<vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>, i32)
+declare <vscale x 2 x i64> @llvm.aarch64.sve.cmla.x.nxv2i64(<vscale x 2 x i64>, <vscale x 2 x i64>, <vscale x 2 x i64>, i32)
+
+declare <vscale x 8 x i16> @llvm.aarch64.sve.cmla.lane.x.nxv8i16(<vscale x 8 x i16>, <vscale x 8 x i16>, <vscale x 8 x i16>, i32, i32)
+declare <vscale x 4 x i32> @llvm.aarch64.sve.cmla.lane.x.nxv4i32(<vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>, i32, i32)
+
+declare <vscale x 16 x i8> @llvm.aarch64.sve.sqrdcmlah.x.nxv16i8(<vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, i32)
+declare <vscale x 8 x i16> @llvm.aarch64.sve.sqrdcmlah.x.nxv8i16(<vscale x 8 x i16>, <vscale x 8 x i16>, <vscale x 8 x i16>, i32)
+declare <vscale x 4 x i32> @llvm.aarch64.sve.sqrdcmlah.x.nxv4i32(<vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>, i32)
+declare <vscale x 2 x i64> @llvm.aarch64.sve.sqrdcmlah.x.nxv2i64(<vscale x 2 x i64>, <vscale x 2 x i64>, <vscale x 2 x i64>, i32)
+
+declare <vscale x 8 x i16> @llvm.aarch64.sve.sqrdcmlah.lane.x.nxv8i16(<vscale x 8 x i16>, <vscale x 8 x i16>, <vscale x 8 x i16>, i32, i32)
+declare <vscale x 4 x i32> @llvm.aarch64.sve.sqrdcmlah.lane.x.nxv4i32(<vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>, i32, i32)
diff --git a/llvm/test/CodeGen/AArch64/sve2-intrinsics-widening-complex-int-arith.ll b/llvm/test/CodeGen/AArch64/sve2-intrinsics-widening-complex-int-arith.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/sve2-intrinsics-widening-complex-int-arith.ll
@@ -0,0 +1,106 @@
+; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve2 < %s | FileCheck %s
+
+;
+; SADDLBT
+;
+
+define <vscale x 8 x i16> @saddlbt_b(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b) {
+; CHECK-LABEL: saddlbt_b:
+; CHECK: saddlbt z0.h, z0.b, z1.b
+; CHECK-NEXT: ret
+  %out = call <vscale x 8 x i16> @llvm.aarch64.sve.saddlbt.nxv8i16(<vscale x 16 x i8> %a,
+                                                              <vscale x 16 x i8> %b)
+  ret <vscale x 8 x i16> %out
+}
+
+define <vscale x 4 x i32> @saddlbt_h(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b) {
+; CHECK-LABEL: saddlbt_h:
+; CHECK: saddlbt z0.s, z0.h, z1.h
+; CHECK-NEXT: ret
+  %out = call <vscale x 4 x i32> @llvm.aarch64.sve.saddlbt.nxv4i32(<vscale x 8 x i16> %a,
+                                                              <vscale x 8 x i16> %b)
+  ret <vscale x 4 x i32> %out
+}
+
+define <vscale x 2 x i64> @saddlbt_s(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b) {
+; CHECK-LABEL: saddlbt_s:
+; CHECK: saddlbt z0.d, z0.s, z1.s
+; CHECK-NEXT: ret
+  %out = call <vscale x 2 x i64> @llvm.aarch64.sve.saddlbt.nxv2i64(<vscale x 4 x i32> %a,
+                                                              <vscale x 4 x i32> %b)
+  ret <vscale x 2 x i64> %out
+}
+
+;
+; SSUBLBT
+;
+
+define <vscale x 8 x i16> @ssublbt_b(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b) {
+; CHECK-LABEL: ssublbt_b:
+; CHECK: ssublbt z0.h, z0.b, z1.b
+; CHECK-NEXT: ret
+  %out = call <vscale x 8 x i16> @llvm.aarch64.sve.ssublbt.nxv8i16(<vscale x 16 x i8> %a,
+                                                              <vscale x 16 x i8> %b)
+  ret <vscale x 8 x i16> %out
+}
+
+define <vscale x 4 x i32> @ssublbt_h(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b) {
+; CHECK-LABEL: ssublbt_h:
+; CHECK: ssublbt z0.s, z0.h, z1.h
+; CHECK-NEXT: ret
+  %out = call <vscale x 4 x i32> @llvm.aarch64.sve.ssublbt.nxv4i32(<vscale x 8 x i16> %a,
+                                                              <vscale x 8 x i16> %b)
+  ret <vscale x 4 x i32> %out
+}
+
+define <vscale x 2 x i64> @ssublbt_s(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b) {
+; CHECK-LABEL: ssublbt_s:
+; CHECK: ssublbt z0.d, z0.s, z1.s
+; CHECK-NEXT: ret
+  %out = call <vscale x 2 x i64> @llvm.aarch64.sve.ssublbt.nxv2i64(<vscale x 4 x i32> %a,
+                                                              <vscale x 4 x i32> %b)
+  ret <vscale x 2 x i64> %out
+}
+
+;
+; SSUBLTB
+;
+
+define <vscale x 8 x i16> @ssubltb_b(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b) {
+; CHECK-LABEL: ssubltb_b:
+; CHECK: ssubltb z0.h, z0.b, z1.b
+; CHECK-NEXT: ret
+  %out = call <vscale x 8 x i16> @llvm.aarch64.sve.ssubltb.nxv8i16(<vscale x 16 x i8> %a,
+                                                              <vscale x 16 x i8> %b)
+  ret <vscale x 8 x i16> %out
+}
+
+define <vscale x 4 x i32> @ssubltb_h(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b) {
+; CHECK-LABEL: ssubltb_h:
+; CHECK: ssubltb z0.s, z0.h, z1.h
+; CHECK-NEXT: ret
+  %out = call <vscale x 4 x i32> @llvm.aarch64.sve.ssubltb.nxv4i32(<vscale x 8 x i16> %a,
+                                                              <vscale x 8 x i16> %b)
+  ret <vscale x 4 x i32> %out
+}
+
+define <vscale x 2 x i64> @ssubltb_s(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b) {
+; CHECK-LABEL: ssubltb_s:
+; CHECK: ssubltb z0.d, z0.s, z1.s
+; CHECK-NEXT: ret
+  %out = call <vscale x 2 x i64> @llvm.aarch64.sve.ssubltb.nxv2i64(<vscale x 4 x i32> %a,
+                                                              <vscale x 4 x i32> %b)
+  ret <vscale x 2 x i64> %out
+}
+
+declare <vscale x 8 x i16> @llvm.aarch64.sve.saddlbt.nxv8i16(<vscale x 16 x i8>, <vscale x 16 x i8>)
+declare <vscale x 4 x i32> @llvm.aarch64.sve.saddlbt.nxv4i32(<vscale x 8 x i16>, <vscale x 8 x i16>)
+declare <vscale x 2 x i64> @llvm.aarch64.sve.saddlbt.nxv2i64(<vscale x 4 x i32>, <vscale x 4 x i32>)
+
+declare <vscale x 8 x i16> @llvm.aarch64.sve.ssublbt.nxv8i16(<vscale x 16 x i8>, <vscale x 16 x i8>)
+declare <vscale x 4 x i32> @llvm.aarch64.sve.ssublbt.nxv4i32(<vscale x 8 x i16>, <vscale x 8 x i16>)
+declare <vscale x 2 x i64> @llvm.aarch64.sve.ssublbt.nxv2i64(<vscale x 4 x i32>, <vscale x 4 x i32>)
+
+declare <vscale x 8 x i16> @llvm.aarch64.sve.ssubltb.nxv8i16(<vscale x 16 x i8>, <vscale x 16 x i8>)
+declare <vscale x 4 x i32> @llvm.aarch64.sve.ssubltb.nxv4i32(<vscale x 8 x i16>, <vscale x 8 x i16>)
+declare <vscale x 2 x i64> @llvm.aarch64.sve.ssubltb.nxv2i64(<vscale x 4 x i32>, <vscale x 4 x i32>)