diff --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp
index 08209277832e1034cc4e1fa6c2f38143e5fd75a3..c3462ed2bb38e979aa63aa95ea4ba24bbfd0abe3 100644
--- a/llvm/lib/Analysis/TargetLibraryInfo.cpp
+++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp
@@ -410,6 +410,9 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
     TLI.setUnavailable(LibFunc_htons);
     TLI.setUnavailable(LibFunc_lchown);
     TLI.setUnavailable(LibFunc_lstat);
+    // OHOS_LOCAL begin backported from 4f30c5808a49ba85b052cb65bbe7b34109187bad
+    TLI.setUnavailable(LibFunc_memrchr);
+    // OHOS_LOCAL end backported from 4f30c5808a49ba85b052cb65bbe7b34109187bad
     TLI.setUnavailable(LibFunc_ntohl);
     TLI.setUnavailable(LibFunc_ntohs);
     TLI.setUnavailable(LibFunc_pread);