diff --git a/src/mapleall/maple_be/include/cg/loop.h b/src/mapleall/maple_be/include/cg/loop.h
index 052c7ef4cf0ecc1970a2c722fed49bf4ec686373..581b31406a47c27879d29af3b11428a3ad78c4f1 100644
--- a/src/mapleall/maple_be/include/cg/loop.h
+++ b/src/mapleall/maple_be/include/cg/loop.h
@@ -134,6 +134,7 @@ class LoopFinder : public AnalysisResult {
   void seekBackEdge(BB* bb, MapleList<BB*> succs);
   void seekCycles();
   void markExtraEntryAndEncl();
+  bool HasSameHeader(LoopHierarchy *lp1, LoopHierarchy *lp2);
   void MergeLoops();
   void SortLoops();
   void UpdateOuterForInnerLoop(BB *bb, LoopHierarchy *outer);
diff --git a/src/mapleall/maple_be/src/cg/loop.cpp b/src/mapleall/maple_be/src/cg/loop.cpp
index e3f6ca5173d42959ab574704abc9bbe1bd5b7c2e..c581108110f2cff5b64c714b3d39a152a084c1ee 100644
--- a/src/mapleall/maple_be/src/cg/loop.cpp
+++ b/src/mapleall/maple_be/src/cg/loop.cpp
@@ -352,6 +352,23 @@ void LoopFinder::markExtraEntryAndEncl() {
   }
 }
 
+bool LoopFinder::HasSameHeader(LoopHierarchy *lp1, LoopHierarchy *lp2) {
+  if (lp1->GetHeader() == lp2->GetHeader()) {
+    return true;
+  }
+  for (auto other1 : lp1->otherLoopEntries) {
+    if (lp2->GetHeader() == other1) {
+      return true;
+    }
+    for (auto other2 : lp2->otherLoopEntries) {
+      if (other2 == other1) {
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
 void LoopFinder::MergeLoops() {
   for (LoopHierarchy *loopHierarchy1 = loops; loopHierarchy1 != nullptr; loopHierarchy1 = loopHierarchy1->GetNext()) {
     for (LoopHierarchy *loopHierarchy2 = loopHierarchy1->GetNext(); loopHierarchy2 != nullptr;
@@ -383,14 +400,19 @@ void LoopFinder::MergeLoops() {
           continue;
         }
       }
-      if (loopHierarchy1->GetHeader() != loopHierarchy2->GetHeader()) {
+      if (HasSameHeader(loopHierarchy1, loopHierarchy2) == false) {
         continue;
       }
       for (auto *bb : loopHierarchy2->GetLoopMembers()) {
         loopHierarchy1->InsertLoopMembers(*bb);
       }
+      if (loopHierarchy1->GetHeader() != loopHierarchy2->GetHeader()) {
+        loopHierarchy1->otherLoopEntries.insert(loopHierarchy2->GetHeader());
+      }
       for (auto bb : loopHierarchy2->otherLoopEntries) {
-        loopHierarchy1->otherLoopEntries.insert(bb);
+        if (loopHierarchy1->GetHeader() != bb) {
+          loopHierarchy1->otherLoopEntries.insert(bb);
+        }
       }
       for (auto *bb : loopHierarchy2->GetBackedge()) {
         loopHierarchy1->InsertBackedge(*bb);