diff --git a/llvm/lib/Transforms/Utils/FunctionComparator.cpp b/llvm/lib/Transforms/Utils/FunctionComparator.cpp
--- a/llvm/lib/Transforms/Utils/FunctionComparator.cpp
+++ b/llvm/lib/Transforms/Utils/FunctionComparator.cpp
@@ -30,6 +30,7 @@
 #include "llvm/IR/InstrTypes.h"
 #include "llvm/IR/Instruction.h"
 #include "llvm/IR/Instructions.h"
+#include "llvm/IR/Intrinsics.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Metadata.h"
 #include "llvm/IR/Module.h"
@@ -616,6 +617,20 @@
       if (int Res = cmpNumbers(CI->getTailCallKind(),
                                cast<CallInst>(R)->getTailCallKind()))
         return Res;
+
+    // Comparison for the metadata argument of llvm.type.test for CFI checks
+    if (CBL->getCalledFunction()->getIntrinsicID() ==
+        llvm::Intrinsic::type_test) {
+      auto *MDL =
+          dyn_cast<MetadataAsValue>(CBL->getArgOperand(1))->getMetadata();
+      auto *MDR =
+          dyn_cast<MetadataAsValue>(CBR->getArgOperand(1))->getMetadata();
+
+      if (MDL != MDR) {
+        return -1;
+      }
+    }
+
     return cmpRangeMetadata(L->getMetadata(LLVMContext::MD_range),
                             R->getMetadata(LLVMContext::MD_range));
   }
diff --git a/llvm/test/Transforms/MergeFunc/cfi-function-merging.ll b/llvm/test/Transforms/MergeFunc/cfi-function-merging.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Transforms/MergeFunc/cfi-function-merging.ll
@@ -0,0 +1,41 @@
+;; Check the cases involving internal CFI instrumented functions where we do not expect functions to be merged.
+; RUN: opt -S -passes=mergefunc < %s | FileCheck %s
+
+
+target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
+target triple = "aarch64-none-linux-android28"
+
+; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn
+declare i1 @llvm.type.test(ptr, metadata) #6
+
+define internal void @A__on_zero_sharedEv(ptr noundef nonnull align 8 dereferenceable(32) %this) unnamed_addr #3 align 2 {
+; CHECK-LABEL: @A__on_zero_sharedEv
+entry:
+  %this.addr = alloca ptr, align 8
+  store ptr %this, ptr %this.addr, align 8
+  %this1 = load ptr, ptr %this.addr, align 8
+  %vtable = load ptr, ptr %this1, align 8
+  %0 = call i1 @llvm.type.test(ptr %vtable, metadata !11), !nosanitize !47
+  ret void
+}
+
+; Function Attrs: mustprogress noinline nounwind optnone uwtable
+define internal void @B__on_zero_sharedEv(ptr noundef nonnull align 8 dereferenceable(32) %this) unnamed_addr #3 align 2 {
+; CHECK-LABEL: @B__on_zero_sharedEv
+entry:
+  %this.addr = alloca ptr, align 8
+  store ptr %this, ptr %this.addr, align 8
+  %this1 = load ptr, ptr %this.addr, align 8
+  %vtable = load ptr, ptr %this1, align 8
+  %0 = call i1 @llvm.type.test(ptr %vtable, metadata !22), !nosanitize !47
+  ret void
+}
+
+attributes #3 = { mustprogress noinline nounwind optnone uwtable "frame-pointer"="non-leaf" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="generic" "target-features"="+fix-cortex-a53-835769,+neon,+outline-atomics,+v8a" }
+attributes #6 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
+
+!10 = !{i64 16, !11}
+!11 = distinct !{}
+!21 = !{i64 16, !22}
+!22 = distinct !{}
+!47 = !{}