diff --git a/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td b/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
index 6fdcaec86340c..c10653e05841c 100644
--- a/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
+++ b/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
@@ -3845,6 +3845,10 @@ let Predicates = [HasSVE2orSME] in {
 
   // SVE2 extract vector (immediate offset, constructive)
   def EXT_ZZI_B : sve2_int_perm_extract_i_cons<"ext">;
+  let AddedComplexity = 2 in {
+    def : Pat<(nxv16i8 (AArch64ext nxv16i8:$zn1, nxv16i8:$zn2, (i32 imm0_255:$imm))),
+              (EXT_ZZI_B (REG_SEQUENCE ZPR2, $zn1, zsub0, $zn2, zsub1), imm0_255:$imm)>;
+  }
 } // End HasSVE2orSME
 
 let Predicates = [HasSVE2] in {
diff --git a/llvm/test/CodeGen/AArch64/sve-intrinsics-perm-select.ll b/llvm/test/CodeGen/AArch64/sve-intrinsics-perm-select.ll
index fec255b712441..3096b50988476 100644
--- a/llvm/test/CodeGen/AArch64/sve-intrinsics-perm-select.ll
+++ b/llvm/test/CodeGen/AArch64/sve-intrinsics-perm-select.ll
@@ -628,10 +628,17 @@ define dso_local <vscale x 8 x half> @dupq_f16_repeat_complex(half %x, half %y)
 }
 
 define <vscale x 16 x i8> @ext_i8(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b) {
-; CHECK-LABEL: ext_i8:
-; CHECK:       // %bb.0:
-; CHECK-NEXT:    ext z0.b, z0.b, z1.b, #255
-; CHECK-NEXT:    ret
+; SVE-LABEL: ext_i8:
+; SVE:       // %bb.0:
+; SVE-NEXT:    ext z0.b, z0.b, z1.b, #255
+; SVE-NEXT:    ret
+;
+; SVE2-LABEL: ext_i8:
+; SVE2:       // %bb.0:
+; SVE2-NEXT:    // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    ext z0.b, { z0.b, z1.b }, #255
+; SVE2-NEXT:    ret
   %out = call <vscale x 16 x i8> @llvm.aarch64.sve.ext.nxv16i8(<vscale x 16 x i8> %a,
                                                                <vscale x 16 x i8> %b,
                                                                i32 255)
@@ -639,10 +646,17 @@ define <vscale x 16 x i8> @ext_i8(<vscale x 16 x i8> %a, <vscale x 16 x i8> %b)
 }
 
 define <vscale x 8 x i16> @ext_i16(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b) {
-; CHECK-LABEL: ext_i16:
-; CHECK:       // %bb.0:
-; CHECK-NEXT:    ext z0.b, z0.b, z1.b, #0
-; CHECK-NEXT:    ret
+; SVE-LABEL: ext_i16:
+; SVE:       // %bb.0:
+; SVE-NEXT:    ext z0.b, z0.b, z1.b, #0
+; SVE-NEXT:    ret
+;
+; SVE2-LABEL: ext_i16:
+; SVE2:       // %bb.0:
+; SVE2-NEXT:    // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    ext z0.b, { z0.b, z1.b }, #0
+; SVE2-NEXT:    ret
   %out = call <vscale x 8 x i16> @llvm.aarch64.sve.ext.nxv8i16(<vscale x 8 x i16> %a,
                                                                <vscale x 8 x i16> %b,
                                                                i32 0)
@@ -650,10 +664,17 @@ define <vscale x 8 x i16> @ext_i16(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b)
 }
 
 define <vscale x 4 x i32> @ext_i32(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b) {
-; CHECK-LABEL: ext_i32:
-; CHECK:       // %bb.0:
-; CHECK-NEXT:    ext z0.b, z0.b, z1.b, #4
-; CHECK-NEXT:    ret
+; SVE-LABEL: ext_i32:
+; SVE:       // %bb.0:
+; SVE-NEXT:    ext z0.b, z0.b, z1.b, #4
+; SVE-NEXT:    ret
+;
+; SVE2-LABEL: ext_i32:
+; SVE2:       // %bb.0:
+; SVE2-NEXT:    // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    ext z0.b, { z0.b, z1.b }, #4
+; SVE2-NEXT:    ret
   %out = call <vscale x 4 x i32> @llvm.aarch64.sve.ext.nxv4i32(<vscale x 4 x i32> %a,
                                                                <vscale x 4 x i32> %b,
                                                                i32 1)
@@ -661,10 +682,17 @@ define <vscale x 4 x i32> @ext_i32(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b)
 }
 
 define <vscale x 2 x i64> @ext_i64(<vscale x 2 x i64> %a, <vscale x 2 x i64> %b) {
-; CHECK-LABEL: ext_i64:
-; CHECK:       // %bb.0:
-; CHECK-NEXT:    ext z0.b, z0.b, z1.b, #16
-; CHECK-NEXT:    ret
+; SVE-LABEL: ext_i64:
+; SVE:       // %bb.0:
+; SVE-NEXT:    ext z0.b, z0.b, z1.b, #16
+; SVE-NEXT:    ret
+;
+; SVE2-LABEL: ext_i64:
+; SVE2:       // %bb.0:
+; SVE2-NEXT:    // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    ext z0.b, { z0.b, z1.b }, #16
+; SVE2-NEXT:    ret
   %out = call <vscale x 2 x i64> @llvm.aarch64.sve.ext.nxv2i64(<vscale x 2 x i64> %a,
                                                                <vscale x 2 x i64> %b,
                                                                i32 2)
@@ -672,10 +700,17 @@ define <vscale x 2 x i64> @ext_i64(<vscale x 2 x i64> %a, <vscale x 2 x i64> %b)
 }
 
 define <vscale x 8 x bfloat> @ext_bf16(<vscale x 8 x bfloat> %a, <vscale x 8 x bfloat> %b) #0 {
-; CHECK-LABEL: ext_bf16:
-; CHECK:       // %bb.0:
-; CHECK-NEXT:    ext z0.b, z0.b, z1.b, #6
-; CHECK-NEXT:    ret
+; SVE-LABEL: ext_bf16:
+; SVE:       // %bb.0:
+; SVE-NEXT:    ext z0.b, z0.b, z1.b, #6
+; SVE-NEXT:    ret
+;
+; SVE2-LABEL: ext_bf16:
+; SVE2:       // %bb.0:
+; SVE2-NEXT:    // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    ext z0.b, { z0.b, z1.b }, #6
+; SVE2-NEXT:    ret
   %out = call <vscale x 8 x bfloat> @llvm.aarch64.sve.ext.nxv8bf16(<vscale x 8 x bfloat> %a,
                                                                    <vscale x 8 x bfloat> %b,
                                                                    i32 3)
@@ -683,10 +718,17 @@ define <vscale x 8 x bfloat> @ext_bf16(<vscale x 8 x bfloat> %a, <vscale x 8 x b
 }
 
 define <vscale x 8 x half> @ext_f16(<vscale x 8 x half> %a, <vscale x 8 x half> %b) {
-; CHECK-LABEL: ext_f16:
-; CHECK:       // %bb.0:
-; CHECK-NEXT:    ext z0.b, z0.b, z1.b, #6
-; CHECK-NEXT:    ret
+; SVE-LABEL: ext_f16:
+; SVE:       // %bb.0:
+; SVE-NEXT:    ext z0.b, z0.b, z1.b, #6
+; SVE-NEXT:    ret
+;
+; SVE2-LABEL: ext_f16:
+; SVE2:       // %bb.0:
+; SVE2-NEXT:    // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    ext z0.b, { z0.b, z1.b }, #6
+; SVE2-NEXT:    ret
   %out = call <vscale x 8 x half> @llvm.aarch64.sve.ext.nxv8f16(<vscale x 8 x half> %a,
                                                                 <vscale x 8 x half> %b,
                                                                 i32 3)
@@ -694,10 +736,17 @@ define <vscale x 8 x half> @ext_f16(<vscale x 8 x half> %a, <vscale x 8 x half>
 }
 
 define <vscale x 4 x float> @ext_f32(<vscale x 4 x float> %a, <vscale x 4 x float> %b) {
-; CHECK-LABEL: ext_f32:
-; CHECK:       // %bb.0:
-; CHECK-NEXT:    ext z0.b, z0.b, z1.b, #16
-; CHECK-NEXT:    ret
+; SVE-LABEL: ext_f32:
+; SVE:       // %bb.0:
+; SVE-NEXT:    ext z0.b, z0.b, z1.b, #16
+; SVE-NEXT:    ret
+;
+; SVE2-LABEL: ext_f32:
+; SVE2:       // %bb.0:
+; SVE2-NEXT:    // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    ext z0.b, { z0.b, z1.b }, #16
+; SVE2-NEXT:    ret
   %out = call <vscale x 4 x float> @llvm.aarch64.sve.ext.nxv4f32(<vscale x 4 x float> %a,
                                                                  <vscale x 4 x float> %b,
                                                                  i32 4)
@@ -705,10 +754,17 @@ define <vscale x 4 x float> @ext_f32(<vscale x 4 x float> %a, <vscale x 4 x floa
 }
 
 define <vscale x 2 x double> @ext_f64(<vscale x 2 x double> %a, <vscale x 2 x double> %b) {
-; CHECK-LABEL: ext_f64:
-; CHECK:       // %bb.0:
-; CHECK-NEXT:    ext z0.b, z0.b, z1.b, #40
-; CHECK-NEXT:    ret
+; SVE-LABEL: ext_f64:
+; SVE:       // %bb.0:
+; SVE-NEXT:    ext z0.b, z0.b, z1.b, #40
+; SVE-NEXT:    ret
+;
+; SVE2-LABEL: ext_f64:
+; SVE2:       // %bb.0:
+; SVE2-NEXT:    // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; SVE2-NEXT:    ext z0.b, { z0.b, z1.b }, #40
+; SVE2-NEXT:    ret
   %out = call <vscale x 2 x double> @llvm.aarch64.sve.ext.nxv2f64(<vscale x 2 x double> %a,
                                                                   <vscale x 2 x double> %b,
                                                                   i32 5)