diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
--- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
@@ -479,7 +479,8 @@
 
     *TargetPtr &= 0xfff8001fU;
     // Immediate:15:2 goes in bits 18:5 of TBZ, TBNZ
-    or32le(TargetPtr, (BranchImm & 0x0FFFFFFC) << 3);
+    or32le(TargetPtr, (BranchImm & 0x0000FFFC) << 3);
+
     break;
   }
   case ELF::R_AARCH64_CALL26: // fallthrough
diff --git a/llvm/test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_TSTBR14.s b/llvm/test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_TSTBR14.s
new file mode 100644
--- /dev/null
+++ b/llvm/test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_TSTBR14.s
@@ -0,0 +1,14 @@
+# RUN: llvm-mc -triple=arm64-none-linux-gnu -filetype=obj -o %t %s
+# RUN: llvm-rtdyld -triple=aarch64_be-none-linux-gnu -verify -check=%s %t
+
+.section .text.1,"ax"
+.globl foo
+foo:
+  ret
+
+.globl _main
+_main:
+  tbnz x0, #1, foo
+
+## Branch 1 instruction back from _main
+# rtdyld-check: *{4}(_main) = 0x370FFFE0