diff --git a/src/cmd/compile/internal/ssa/_gen/LOONG64.rules b/src/cmd/compile/internal/ssa/_gen/LOONG64.rules
index c1067c8272..674529ea37 100644
--- a/src/cmd/compile/internal/ssa/_gen/LOONG64.rules
+++ b/src/cmd/compile/internal/ssa/_gen/LOONG64.rules
@@ -796,3 +796,13 @@
 (GTZ (MOVVconst [c]) yes no) && c <= 0 => (First no yes)
 (GEZ (MOVVconst [c]) yes no) && c >= 0 => (First yes no)
 (GEZ (MOVVconst [c]) yes no) && c <  0 => (First no yes)
+
+// Arch-specific inlining for small or disjoint runtime.memmove
+// Match post-lowering calls, register version.
+(SelectN [0] call:(CALLstatic {sym} dst src (MOVVconst [sz]) mem))
+	&& sz >= 0
+	&& isSameCall(sym, "runtime.memmove")
+	&& call.Uses == 1
+	&& isInlinableMemmove(dst, src, sz, config)
+	&& clobber(call)
+	=> (Move [sz] dst src mem)
diff --git a/src/cmd/compile/internal/ssa/rewriteLOONG64.go b/src/cmd/compile/internal/ssa/rewriteLOONG64.go
index 95fa7cd30e..8e696cb94b 100644
--- a/src/cmd/compile/internal/ssa/rewriteLOONG64.go
+++ b/src/cmd/compile/internal/ssa/rewriteLOONG64.go
@@ -652,6 +652,8 @@ func rewriteValueLOONG64(v *Value) bool {
 		return rewriteValueLOONG64_OpSelect0(v)
 	case OpSelect1:
 		return rewriteValueLOONG64_OpSelect1(v)
+	case OpSelectN:
+		return rewriteValueLOONG64_OpSelectN(v)
 	case OpSignExt16to32:
 		v.Op = OpLOONG64MOVHreg
 		return true
@@ -8933,6 +8935,40 @@ func rewriteValueLOONG64_OpSelect1(v *Value) bool {
 	}
 	return false
 }
+func rewriteValueLOONG64_OpSelectN(v *Value) bool {
+	v_0 := v.Args[0]
+	b := v.Block
+	config := b.Func.Config
+	// match: (SelectN [0] call:(CALLstatic {sym} dst src (MOVVconst [sz]) mem))
+	// cond: sz >= 0 && isSameCall(sym, "runtime.memmove") && call.Uses == 1 && isInlinableMemmove(dst, src, sz, config) && clobber(call)
+	// result: (Move [sz] dst src mem)
+	for {
+		if auxIntToInt64(v.AuxInt) != 0 {
+			break
+		}
+		call := v_0
+		if call.Op != OpLOONG64CALLstatic || len(call.Args) != 4 {
+			break
+		}
+		sym := auxToCall(call.Aux)
+		mem := call.Args[3]
+		dst := call.Args[0]
+		src := call.Args[1]
+		call_2 := call.Args[2]
+		if call_2.Op != OpLOONG64MOVVconst {
+			break
+		}
+		sz := auxIntToInt64(call_2.AuxInt)
+		if !(sz >= 0 && isSameCall(sym, "runtime.memmove") && call.Uses == 1 && isInlinableMemmove(dst, src, sz, config) && clobber(call)) {
+			break
+		}
+		v.reset(OpMove)
+		v.AuxInt = int64ToAuxInt(sz)
+		v.AddArg3(dst, src, mem)
+		return true
+	}
+	return false
+}
 func rewriteValueLOONG64_OpSlicemask(v *Value) bool {
 	v_0 := v.Args[0]
 	b := v.Block
diff --git a/test/codegen/copy.go b/test/codegen/copy.go
index 17ee8bc807..4329c6d78f 100644
--- a/test/codegen/copy.go
+++ b/test/codegen/copy.go
@@ -95,6 +95,7 @@ func moveArchLowering1(b []byte, x *[1]byte) {
 	_ = b[1]
 	// amd64:-".*memmove"
 	// arm64:-".*memmove"
+	// loong64:-".*memmove"
 	// ppc64x:-".*memmove"
 	copy(b, x[:])
 }
@@ -103,6 +104,7 @@ func moveArchLowering2(b []byte, x *[2]byte) {
 	_ = b[2]
 	// amd64:-".*memmove"
 	// arm64:-".*memmove"
+	// loong64:-".*memmove"
 	// ppc64x:-".*memmove"
 	copy(b, x[:])
 }
@@ -111,6 +113,7 @@ func moveArchLowering4(b []byte, x *[4]byte) {
 	_ = b[4]
 	// amd64:-".*memmove"
 	// arm64:-".*memmove"
+	// loong64:-".*memmove"
 	// ppc64x:-".*memmove"
 	copy(b, x[:])
 }