diff --git a/src/cmd/compile/internal/ssa/_gen/LOONG64.rules b/src/cmd/compile/internal/ssa/_gen/LOONG64.rules
index 64cbe76295..923e8ef0e4 100644
--- a/src/cmd/compile/internal/ssa/_gen/LOONG64.rules
+++ b/src/cmd/compile/internal/ssa/_gen/LOONG64.rules
@@ -453,6 +453,7 @@
 (GetCallerPC ...) => (LoweredGetCallerPC ...)
 
 (If cond yes no) => (NE (MOVBUreg <typ.UInt64> cond) yes no)
+(MOVBUreg x:(XOR (MOVVconst [1]) ((SGT|SGTU) _ _))) => x
 
 // Write barrier.
 (WB ...) => (LoweredWB ...)
diff --git a/src/cmd/compile/internal/ssa/rewriteLOONG64.go b/src/cmd/compile/internal/ssa/rewriteLOONG64.go
index df5043b949..abc92b1893 100644
--- a/src/cmd/compile/internal/ssa/rewriteLOONG64.go
+++ b/src/cmd/compile/internal/ssa/rewriteLOONG64.go
@@ -1907,6 +1907,44 @@ func rewriteValueLOONG64_OpLOONG64MOVBUreg(v *Value) bool {
 		v.AddArg(x)
 		return true
 	}
+	// match: (MOVBUreg x:(XOR (MOVVconst [1]) (SGT _ _)))
+	// result: x
+	for {
+		x := v_0
+		if x.Op != OpLOONG64XOR {
+			break
+		}
+		_ = x.Args[1]
+		x_0 := x.Args[0]
+		x_1 := x.Args[1]
+		for _i0 := 0; _i0 <= 1; _i0, x_0, x_1 = _i0+1, x_1, x_0 {
+			if x_0.Op != OpLOONG64MOVVconst || auxIntToInt64(x_0.AuxInt) != 1 || x_1.Op != OpLOONG64SGT {
+				continue
+			}
+			v.copyOf(x)
+			return true
+		}
+		break
+	}
+	// match: (MOVBUreg x:(XOR (MOVVconst [1]) (SGTU _ _)))
+	// result: x
+	for {
+		x := v_0
+		if x.Op != OpLOONG64XOR {
+			break
+		}
+		_ = x.Args[1]
+		x_0 := x.Args[0]
+		x_1 := x.Args[1]
+		for _i0 := 0; _i0 <= 1; _i0, x_0, x_1 = _i0+1, x_1, x_0 {
+			if x_0.Op != OpLOONG64MOVVconst || auxIntToInt64(x_0.AuxInt) != 1 || x_1.Op != OpLOONG64SGTU {
+				continue
+			}
+			v.copyOf(x)
+			return true
+		}
+		break
+	}
 	// match: (MOVBUreg x:(SGT _ _))
 	// result: x
 	for {