diff --git a/src/bin/jbc2mpl b/src/bin/jbc2mpl
index 1c67ae4c8782f70e3038b05c199e3f5990cf6a12..c900233e4c401056354ad8d34cc85e00203fef5c 100755
Binary files a/src/bin/jbc2mpl and b/src/bin/jbc2mpl differ
diff --git a/src/bin/maple b/src/bin/maple
index 4e9a47076aa3cada9a1e7ab61728f7aa88fe7ebd..dc5fcf0077375e1884b0f1fbd7725d1efebf3711 100755
Binary files a/src/bin/maple and b/src/bin/maple differ
diff --git a/src/maple_ir/include/option.h b/src/maple_ir/include/option.h
index 1b8741e5ed099c0c9c6e2f6ba92d20e8b1ce3ef9..12998d24c484e809367ff3f35fca263551803488 100644
--- a/src/maple_ir/include/option.h
+++ b/src/maple_ir/include/option.h
@@ -73,6 +73,7 @@ class Options : public MapleDriverOptionBase {
   static bool useCrossModuleInline;
   static uint32 inlineSmallFunctionThreshold;
   static uint32 inlineHotFunctionThreshold;
+  static uint32 inlineRecursiveFunctionThreshold;
   static uint32 inlineModuleGrowth;
   static uint32 inlineColdFunctionThreshold;
   static uint32 profileHotCount;
diff --git a/src/maple_ir/src/option.cpp b/src/maple_ir/src/option.cpp
index 920110ad6472d9b74b7e13f3d4a9ad2d68b2f7c4..cc649367c9f5c0099868a40a48f2c44038173bfe 100644
--- a/src/maple_ir/src/option.cpp
+++ b/src/maple_ir/src/option.cpp
@@ -38,6 +38,7 @@ bool Options::useCrossModuleInline = true;  // Enabled by default
 std::string Options::noInlineFuncList = "";
 uint32 Options::inlineSmallFunctionThreshold = 15;
 uint32 Options::inlineHotFunctionThreshold = 30;
+uint32 Options::inlineRecursiveFunctionThreshold = 15;
 uint32 Options::inlineModuleGrowth = 10;
 uint32 Options::inlineColdFunctionThreshold = 3;
 uint32 Options::profileHotCount = 1000;
@@ -89,6 +90,7 @@ enum OptionIndex {
   kMpl2MplUseCrossModuleInline,
   kInlineSmallFunctionThreshold,
   kInlineHotFunctionThreshold,
+  kInlineRecursiveFunctionThreshold,
   kInlineModuleGrowth,
   kInlineColdFunctionThreshold,
   kProfileHotCount,
@@ -242,6 +244,15 @@ const Descriptor kUsage[] = {
     "  --inline-hot-function-threshold=30              \tThreshold for inlining hot function\n",
     "mpl2mpl",
     {} },
+  { kInlineRecursiveFunctionThreshold,
+    0,
+    nullptr,
+    "inline-recursive-function-threshold",
+    kBuildTypeExperimental,
+    kArgCheckPolicyRequired,
+    "  --inline-recursive-function-threshold=15              \tThreshold for inlining recursive function\n",
+    "mpl2mpl",
+    {} },
   { kInlineModuleGrowth,
     0,
     nullptr,
@@ -552,6 +563,14 @@ bool Options::SolveOptions(const std::vector<Option> &opts,
           inlineHotFunctionThreshold = std::stoul(opt.Args());
         }
         break;
+      case kInlineRecursiveFunctionThreshold:
+        if (opt.Args().empty()) {
+          LogInfo::MapleLogger(kLlErr) << "expecting not empty for --inline-recursive-function-threshold\n";
+          result = false;
+        } else {
+          inlineRecursiveFunctionThreshold = std::stoul(opt.Args());
+        }
+        break;
       case kInlineModuleGrowth:
         if (opt.Args().empty()) {
           LogInfo::MapleLogger(kLlErr) << "expecting not empty for --inline-module-growth\n";
diff --git a/src/maple_ir/src/parser.cpp b/src/maple_ir/src/parser.cpp
index b9f001fc6ad20587eda5f0c2fbadd7feff364458..aa382fea18e915f9be3ed1a969024ce37ad50bb0 100644
--- a/src/maple_ir/src/parser.cpp
+++ b/src/maple_ir/src/parser.cpp
@@ -1731,7 +1731,8 @@ bool MIRParser::ParseDeclareVar(MIRSymbol &symbol) {
     // allow empty initialization for vtable, itable, vtableOffsetTable and fieldOffsetTable
     if (symbolStrName.find(VTAB_PREFIX_STR) == 0 || symbolStrName.find(NameMangler::kVtabOffsetTabStr) == 0 ||
         symbolStrName.find(ITAB_PREFIX_STR) == 0 || symbolStrName.find(NameMangler::kFieldOffsetTabStr) == 0 ||
-        symbolStrName.find(ITAB_CONFLICT_PREFIX_STR) == 0) {
+        symbolStrName.find(ITAB_CONFLICT_PREFIX_STR) == 0 ||
+        symbolStrName.find(NameMangler::kDecoupleStaticKeyStr) == 0) {
       allowEmpty = true;
     }
     if (!ParseInitValue(mirConst, tyIdx, allowEmpty)) {
@@ -2019,7 +2020,7 @@ bool MIRParser::ParseInitValue(MIRConstPtr &theConst, TyIdx tyIdx, bool allowEmp
           }
         } else if (tokenKind == TK_lbrack) {
           if (elemType->GetKind() == kTypeStruct && arrayType.GetDim() == 1) {
-            if (!ParseInitValue(subConst, arrayType.GetElemTyIdx())) {
+            if (!ParseInitValue(subConst, arrayType.GetElemTyIdx(), allowEmpty)) {
               Error("initializaton value wrong when parsing structure array ");
               return false;
             }
@@ -2059,8 +2060,13 @@ bool MIRParser::ParseInitValue(MIRConstPtr &theConst, TyIdx tyIdx, bool allowEmp
       theConst = newConst;
       tokenKind = lexer.NextToken();
       if (tokenKind == TK_rbrack) {
-        Error("illegal empty initialization for struct at ");
-        return false;
+        if (allowEmpty) {
+          lexer.NextToken();
+          return true;
+        } else {
+          Error("illegal empty initialization for struct at ");
+          return false;
+        }
       }
       do {
         if (lexer.GetTokenKind() != TK_intconst) {
@@ -2091,7 +2097,7 @@ bool MIRParser::ParseInitValue(MIRConstPtr &theConst, TyIdx tyIdx, bool allowEmp
             return false;
           }
         } else if (tokenKind == TK_lbrack) {
-          if (!ParseInitValue(subConst, fieldTyIdx)) {
+          if (!ParseInitValue(subConst, fieldTyIdx, allowEmpty)) {
             Error("parse init value wrong when parse sub struct ");
             return false;
           }