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
@@ -268,7 +268,8 @@
     break;
   case ELF::R_X86_64_8: {
     Value += Addend;
-    assert((int64_t)Value <= INT8_MAX && (int64_t)Value >= INT8_MIN);
+    assert(((int64_t)Value <= INT8_MAX && (int64_t)Value >= INT8_MIN) ||
+           (Value <= UINT8_MAX));
     uint8_t TruncatedAddr = (Value & 0xFF);
     *Section.getAddressWithOffset(Offset) = TruncatedAddr;
     LLVM_DEBUG(dbgs() << "Writing " << format("%p", TruncatedAddr) << " at "
@@ -277,7 +278,8 @@
   }
   case ELF::R_X86_64_16: {
     Value += Addend;
-    assert((int64_t)Value <= INT16_MAX && (int64_t)Value >= INT16_MIN);
+    assert(((int64_t)Value <= INT16_MAX && (int64_t)Value >= INT16_MIN) ||
+           (Value <= UINT16_MAX));
     uint16_t TruncatedAddr = (Value & 0xFFFF);
     support::ulittle16_t::ref(Section.getAddressWithOffset(Offset)) =
         TruncatedAddr;