diff --git a/compiler/optimizer/ir/inst.h b/compiler/optimizer/ir/inst.h
index 807cad09a1254f7cbe31d4ee9ade6d12cc95f83c..7e089f81f55779664f498986960d279b64023457 100644
--- a/compiler/optimizer/ir/inst.h
+++ b/compiler/optimizer/ir/inst.h
@@ -83,6 +83,8 @@ inline ConditionCode GetInverseConditionCode(ConditionCode code)
     switch (code) {
         case ConditionCode::CC_EQ:
             return ConditionCode::CC_NE;
+        case ConditionCode::CC_NE:
+            return ConditionCode::CC_EQ;
         default:
             UNREACHABLE();
     }