diff --git a/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll b/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll
new file mode 100644
index 0000000000000..75ac4c99ef7c1
--- /dev/null
+++ b/llvm/test/CodeGen/LoongArch/lasx/and-not-combine.ll
@@ -0,0 +1,94 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
+; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lasx < %s | FileCheck %s
+; RUN: llc --mtriple=loongarch64 --mattr=+lasx < %s | FileCheck %s
+
+define void @and_not_combine_v32i8(ptr %res, ptr %a0, ptr %a1, ptr %a2) nounwind {
+; CHECK-LABEL: and_not_combine_v32i8:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    xvld $xr0, $a2, 0
+; CHECK-NEXT:    xvld $xr1, $a3, 0
+; CHECK-NEXT:    xvld $xr2, $a1, 0
+; CHECK-NEXT:    xvxori.b $xr0, $xr0, 255
+; CHECK-NEXT:    xvadd.b $xr0, $xr0, $xr1
+; CHECK-NEXT:    xvand.v $xr0, $xr2, $xr0
+; CHECK-NEXT:    xvst $xr0, $a0, 0
+; CHECK-NEXT:    ret
+entry:
+  %v0 = load <32 x i8>, ptr %a0
+  %v1 = load <32 x i8>, ptr %a1
+  %v2 = load <32 x i8>, ptr %a2
+  %not = xor <32 x i8> %v1, <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>
+  %add = add <32 x i8> %not, %v2
+  %and = and <32 x i8> %v0, %add
+  store <32 x i8> %and, ptr %res
+  ret void
+}
+
+define void @and_not_combine_v16i16(ptr %res, ptr %a0, ptr %a1, ptr %a2) nounwind {
+; CHECK-LABEL: and_not_combine_v16i16:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    xvld $xr0, $a2, 0
+; CHECK-NEXT:    xvld $xr1, $a3, 0
+; CHECK-NEXT:    xvld $xr2, $a1, 0
+; CHECK-NEXT:    xvrepli.b $xr3, -1
+; CHECK-NEXT:    xvxor.v $xr0, $xr0, $xr3
+; CHECK-NEXT:    xvadd.h $xr0, $xr0, $xr1
+; CHECK-NEXT:    xvand.v $xr0, $xr2, $xr0
+; CHECK-NEXT:    xvst $xr0, $a0, 0
+; CHECK-NEXT:    ret
+entry:
+  %v0 = load <16 x i16>, ptr %a0
+  %v1 = load <16 x i16>, ptr %a1
+  %v2 = load <16 x i16>, ptr %a2
+  %not = xor <16 x i16> %v1, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
+  %add = add <16 x i16> %not, %v2
+  %and = and <16 x i16> %v0, %add
+  store <16 x i16> %and, ptr %res
+  ret void
+}
+
+define void @and_not_combine_v8i32(ptr %res, ptr %a0, ptr %a1, ptr %a2) nounwind {
+; CHECK-LABEL: and_not_combine_v8i32:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    xvld $xr0, $a2, 0
+; CHECK-NEXT:    xvld $xr1, $a3, 0
+; CHECK-NEXT:    xvld $xr2, $a1, 0
+; CHECK-NEXT:    xvrepli.b $xr3, -1
+; CHECK-NEXT:    xvxor.v $xr0, $xr0, $xr3
+; CHECK-NEXT:    xvadd.w $xr0, $xr0, $xr1
+; CHECK-NEXT:    xvand.v $xr0, $xr2, $xr0
+; CHECK-NEXT:    xvst $xr0, $a0, 0
+; CHECK-NEXT:    ret
+entry:
+  %v0 = load <8 x i32>, ptr %a0
+  %v1 = load <8 x i32>, ptr %a1
+  %v2 = load <8 x i32>, ptr %a2
+  %not = xor <8 x i32> %v1, <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>
+  %add = add <8 x i32> %not, %v2
+  %and = and <8 x i32> %v0, %add
+  store <8 x i32> %and, ptr %res
+  ret void
+}
+
+define void @and_not_combine_v4i64(ptr %res, ptr %a0, ptr %a1, ptr %a2) nounwind {
+; CHECK-LABEL: and_not_combine_v4i64:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    xvld $xr0, $a2, 0
+; CHECK-NEXT:    xvld $xr1, $a3, 0
+; CHECK-NEXT:    xvld $xr2, $a1, 0
+; CHECK-NEXT:    xvrepli.b $xr3, -1
+; CHECK-NEXT:    xvxor.v $xr0, $xr0, $xr3
+; CHECK-NEXT:    xvadd.d $xr0, $xr0, $xr1
+; CHECK-NEXT:    xvand.v $xr0, $xr2, $xr0
+; CHECK-NEXT:    xvst $xr0, $a0, 0
+; CHECK-NEXT:    ret
+entry:
+  %v0 = load <4 x i64>, ptr %a0
+  %v1 = load <4 x i64>, ptr %a1
+  %v2 = load <4 x i64>, ptr %a2
+  %not = xor <4 x i64> %v1, <i64 -1, i64 -1, i64 -1, i64 -1>
+  %add = add <4 x i64> %not, %v2
+  %and = and <4 x i64> %v0, %add
+  store <4 x i64> %and, ptr %res
+  ret void
+}
diff --git a/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll b/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll
new file mode 100644
index 0000000000000..39060bfa92c0d
--- /dev/null
+++ b/llvm/test/CodeGen/LoongArch/lsx/and-not-combine.ll
@@ -0,0 +1,94 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
+; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lsx < %s | FileCheck %s
+; RUN: llc --mtriple=loongarch64 --mattr=+lsx < %s | FileCheck %s
+
+define void @and_not_combine_v16i8(ptr %res, ptr %a0, ptr %a1, ptr %a2) nounwind {
+; CHECK-LABEL: and_not_combine_v16i8:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    vld $vr0, $a2, 0
+; CHECK-NEXT:    vld $vr1, $a3, 0
+; CHECK-NEXT:    vld $vr2, $a1, 0
+; CHECK-NEXT:    vxori.b $vr0, $vr0, 255
+; CHECK-NEXT:    vadd.b $vr0, $vr0, $vr1
+; CHECK-NEXT:    vand.v $vr0, $vr2, $vr0
+; CHECK-NEXT:    vst $vr0, $a0, 0
+; CHECK-NEXT:    ret
+entry:
+  %v0 = load <16 x i8>, ptr %a0
+  %v1 = load <16 x i8>, ptr %a1
+  %v2 = load <16 x i8>, ptr %a2
+  %not = xor <16 x i8> %v1, <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>
+  %add = add <16 x i8> %not, %v2
+  %and = and <16 x i8> %v0, %add
+  store <16 x i8> %and, ptr %res
+  ret void
+}
+
+define void @and_not_combine_v8i16(ptr %res, ptr %a0, ptr %a1, ptr %a2) nounwind {
+; CHECK-LABEL: and_not_combine_v8i16:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    vld $vr0, $a2, 0
+; CHECK-NEXT:    vld $vr1, $a3, 0
+; CHECK-NEXT:    vld $vr2, $a1, 0
+; CHECK-NEXT:    vrepli.b $vr3, -1
+; CHECK-NEXT:    vxor.v $vr0, $vr0, $vr3
+; CHECK-NEXT:    vadd.h $vr0, $vr0, $vr1
+; CHECK-NEXT:    vand.v $vr0, $vr2, $vr0
+; CHECK-NEXT:    vst $vr0, $a0, 0
+; CHECK-NEXT:    ret
+entry:
+  %v0 = load <8 x i16>, ptr %a0
+  %v1 = load <8 x i16>, ptr %a1
+  %v2 = load <8 x i16>, ptr %a2
+  %not = xor <8 x i16> %v1, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
+  %add = add <8 x i16> %not, %v2
+  %and = and <8 x i16> %v0, %add
+  store <8 x i16> %and, ptr %res
+  ret void
+}
+
+define void @and_not_combine_v4i32(ptr %res, ptr %a0, ptr %a1, ptr %a2) nounwind {
+; CHECK-LABEL: and_not_combine_v4i32:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    vld $vr0, $a2, 0
+; CHECK-NEXT:    vld $vr1, $a3, 0
+; CHECK-NEXT:    vld $vr2, $a1, 0
+; CHECK-NEXT:    vrepli.b $vr3, -1
+; CHECK-NEXT:    vxor.v $vr0, $vr0, $vr3
+; CHECK-NEXT:    vadd.w $vr0, $vr0, $vr1
+; CHECK-NEXT:    vand.v $vr0, $vr2, $vr0
+; CHECK-NEXT:    vst $vr0, $a0, 0
+; CHECK-NEXT:    ret
+entry:
+  %v0 = load <4 x i32>, ptr %a0
+  %v1 = load <4 x i32>, ptr %a1
+  %v2 = load <4 x i32>, ptr %a2
+  %not = xor <4 x i32> %v1, <i32 -1, i32 -1, i32 -1, i32 -1>
+  %add = add <4 x i32> %not, %v2
+  %and = and <4 x i32> %v0, %add
+  store <4 x i32> %and, ptr %res
+  ret void
+}
+
+define void @and_not_combine_v2i64(ptr %res, ptr %a0, ptr %a1, ptr %a2) nounwind {
+; CHECK-LABEL: and_not_combine_v2i64:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    vld $vr0, $a2, 0
+; CHECK-NEXT:    vld $vr1, $a3, 0
+; CHECK-NEXT:    vld $vr2, $a1, 0
+; CHECK-NEXT:    vrepli.b $vr3, -1
+; CHECK-NEXT:    vxor.v $vr0, $vr0, $vr3
+; CHECK-NEXT:    vadd.d $vr0, $vr0, $vr1
+; CHECK-NEXT:    vand.v $vr0, $vr2, $vr0
+; CHECK-NEXT:    vst $vr0, $a0, 0
+; CHECK-NEXT:    ret
+entry:
+  %v0 = load <2 x i64>, ptr %a0
+  %v1 = load <2 x i64>, ptr %a1
+  %v2 = load <2 x i64>, ptr %a2
+  %not = xor <2 x i64> %v1, <i64 -1, i64 -1>
+  %add = add <2 x i64> %not, %v2
+  %and = and <2 x i64> %v0, %add
+  store <2 x i64> %and, ptr %res
+  ret void
+}