diff --git a/Source/JavaScriptCore/bytecode/CodeBlock.cpp b/Source/JavaScriptCore/bytecode/CodeBlock.cpp
index 3a08943..987f321 100644
--- a/Source/JavaScriptCore/bytecode/CodeBlock.cpp
+++ b/Source/JavaScriptCore/bytecode/CodeBlock.cpp
@@ -3018,6 +3018,11 @@
     return m_mulICs.add();
 }
 
+JITSubIC* CodeBlock::addJITSubIC()
+{
+    return m_subICs.add();
+}
+
 StructureStubInfo* CodeBlock::findStubInfo(CodeOrigin codeOrigin)
 {
     for (StructureStubInfo* stubInfo : m_stubInfos) {
@@ -4585,6 +4590,8 @@
     double totalAddSize = 0.0;
     double numMuls = 0.0;
     double totalMulSize = 0.0;
+    double numSubs = 0.0;
+    double totalSubSize = 0.0;
 
     auto countICs = [&] (CodeBlock* codeBlock) {
         for (JITAddIC* addIC : codeBlock->m_addICs) {
@@ -4597,6 +4604,11 @@
             totalMulSize += mulIC->codeSize();
         }
 
+        for (JITSubIC* subIC : codeBlock->m_subICs) {
+            numSubs++;
+            totalSubSize += subIC->codeSize();
+        }
+
         return false;
     };
     heap()->forEachCodeBlock(countICs);
@@ -4608,6 +4620,10 @@
     dataLog("Num Muls: ", numMuls, "\n");
     dataLog("Total Mul size in bytes: ", totalMulSize, "\n");
     dataLog("Average Mul size: ", totalMulSize / numMuls, "\n");
+    dataLog("\n");
+    dataLog("Num Subs: ", numSubs, "\n");
+    dataLog("Total Sub size in bytes: ", totalSubSize, "\n");
+    dataLog("Average Sub size: ", totalSubSize / numSubs, "\n");
 
     dataLog("-----------------------\n");
 #endif
diff --git a/Source/JavaScriptCore/bytecode/CodeBlock.h b/Source/JavaScriptCore/bytecode/CodeBlock.h
index 7f940c0..ab92804 100644
--- a/Source/JavaScriptCore/bytecode/CodeBlock.h
+++ b/Source/JavaScriptCore/bytecode/CodeBlock.h
@@ -253,6 +253,7 @@
     StructureStubInfo* addStubInfo(AccessType);
     JITAddIC* addJITAddIC();
     JITMulIC* addJITMulIC();
+    JITSubIC* addJITSubIC();
     Bag<StructureStubInfo>::iterator stubInfoBegin() { return m_stubInfos.begin(); }
     Bag<StructureStubInfo>::iterator stubInfoEnd() { return m_stubInfos.end(); }
     
@@ -1018,6 +1019,7 @@
     Bag<StructureStubInfo> m_stubInfos;
     Bag<JITAddIC> m_addICs;
     Bag<JITMulIC> m_mulICs;
+    Bag<JITSubIC> m_subICs;
     Bag<ByValInfo> m_byValInfos;
     Bag<CallLinkInfo> m_callLinkInfos;
     SentinelLinkedList<CallLinkInfo, BasicRawSentinelNode<CallLinkInfo>> m_incomingCalls;