diff --git a/src/cmd/compile/internal/ssa/_gen/LOONG64.rules b/src/cmd/compile/internal/ssa/_gen/LOONG64.rules
index 1b7d4049c64..bef2b8615b3 100644
--- a/src/cmd/compile/internal/ssa/_gen/LOONG64.rules
+++ b/src/cmd/compile/internal/ssa/_gen/LOONG64.rules
@@ -608,6 +608,21 @@
 (MOVWUreg x:(MOVBUload _ _)) => (MOVVreg x)
 (MOVWUreg x:(MOVHUload _ _)) => (MOVVreg x)
 (MOVWUreg x:(MOVWUload _ _)) => (MOVVreg x)
+(MOVBreg x:(MOVBloadidx _ _ _)) => (MOVVreg x)
+(MOVBUreg x:(MOVBUloadidx _ _ _)) => (MOVVreg x)
+(MOVHreg x:(MOVBloadidx _ _ _)) => (MOVVreg x)
+(MOVHreg x:(MOVBUloadidx _ _ _)) => (MOVVreg x)
+(MOVHreg x:(MOVHloadidx _ _ _)) => (MOVVreg x)
+(MOVHUreg x:(MOVBUloadidx _ _ _)) => (MOVVreg x)
+(MOVHUreg x:(MOVHUloadidx _ _ _)) => (MOVVreg x)
+(MOVWreg x:(MOVBloadidx _ _ _)) => (MOVVreg x)
+(MOVWreg x:(MOVBUloadidx _ _ _)) => (MOVVreg x)
+(MOVWreg x:(MOVHloadidx _ _ _)) => (MOVVreg x)
+(MOVWreg x:(MOVHUloadidx _ _ _)) => (MOVVreg x)
+(MOVWreg x:(MOVWloadidx _ _ _)) => (MOVVreg x)
+(MOVWUreg x:(MOVBUloadidx _ _ _)) => (MOVVreg x)
+(MOVWUreg x:(MOVHUloadidx _ _ _)) => (MOVVreg x)
+(MOVWUreg x:(MOVWUloadidx _ _ _)) => (MOVVreg x)
 
 // fold double extensions
 (MOVBreg x:(MOVBreg _)) => (MOVVreg x)
diff --git a/src/cmd/compile/internal/ssa/rewriteLOONG64.go b/src/cmd/compile/internal/ssa/rewriteLOONG64.go
index 8d29912f407..c6884096570 100644
--- a/src/cmd/compile/internal/ssa/rewriteLOONG64.go
+++ b/src/cmd/compile/internal/ssa/rewriteLOONG64.go
@@ -2559,6 +2559,17 @@ func rewriteValueLOONG64_OpLOONG64MOVBUreg(v *Value) bool {
 		v.AddArg(x)
 		return true
 	}
+	// match: (MOVBUreg x:(MOVBUloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVBUloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
 	// match: (MOVBUreg x:(MOVBUreg _))
 	// result: (MOVVreg x)
 	for {
@@ -2750,6 +2761,17 @@ func rewriteValueLOONG64_OpLOONG64MOVBreg(v *Value) bool {
 		v.AddArg(x)
 		return true
 	}
+	// match: (MOVBreg x:(MOVBloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVBloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
 	// match: (MOVBreg x:(MOVBreg _))
 	// result: (MOVVreg x)
 	for {
@@ -3827,6 +3849,28 @@ func rewriteValueLOONG64_OpLOONG64MOVHUreg(v *Value) bool {
 		v.AddArg(x)
 		return true
 	}
+	// match: (MOVHUreg x:(MOVBUloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVBUloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
+	// match: (MOVHUreg x:(MOVHUloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVHUloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
 	// match: (MOVHUreg x:(MOVBUreg _))
 	// result: (MOVVreg x)
 	for {
@@ -4038,6 +4082,39 @@ func rewriteValueLOONG64_OpLOONG64MOVHreg(v *Value) bool {
 		v.AddArg(x)
 		return true
 	}
+	// match: (MOVHreg x:(MOVBloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVBloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
+	// match: (MOVHreg x:(MOVBUloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVBUloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
+	// match: (MOVHreg x:(MOVHloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVHloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
 	// match: (MOVHreg x:(MOVBreg _))
 	// result: (MOVVreg x)
 	for {
@@ -5053,6 +5130,39 @@ func rewriteValueLOONG64_OpLOONG64MOVWUreg(v *Value) bool {
 		v.AddArg(x)
 		return true
 	}
+	// match: (MOVWUreg x:(MOVBUloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVBUloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
+	// match: (MOVWUreg x:(MOVHUloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVHUloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
+	// match: (MOVWUreg x:(MOVWUloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVWUloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
 	// match: (MOVWUreg x:(MOVBUreg _))
 	// result: (MOVVreg x)
 	for {
@@ -5297,6 +5407,61 @@ func rewriteValueLOONG64_OpLOONG64MOVWreg(v *Value) bool {
 		v.AddArg(x)
 		return true
 	}
+	// match: (MOVWreg x:(MOVBloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVBloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
+	// match: (MOVWreg x:(MOVBUloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVBUloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
+	// match: (MOVWreg x:(MOVHloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVHloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
+	// match: (MOVWreg x:(MOVHUloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVHUloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
+	// match: (MOVWreg x:(MOVWloadidx _ _ _))
+	// result: (MOVVreg x)
+	for {
+		x := v_0
+		if x.Op != OpLOONG64MOVWloadidx {
+			break
+		}
+		v.reset(OpLOONG64MOVVreg)
+		v.AddArg(x)
+		return true
+	}
 	// match: (MOVWreg x:(MOVBreg _))
 	// result: (MOVVreg x)
 	for {