Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -10235,7 +10235,10 @@
         CmdArgs.push_back(TC.getCompilerRTArgString(Args, Lib));
       // Make sure the dynamic runtime thunk is not optimized out at link time
       // to ensure proper SEH handling.
-      CmdArgs.push_back(Args.MakeArgString("-include:___asan_seh_interceptor"));
+      CmdArgs.push_back(Args.MakeArgString(
+          TC.getArch() == llvm::Triple::x86
+              ? "-include:___asan_seh_interceptor"
+              : "-include:__asan_seh_interceptor"));
     } else if (DLL) {
       CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dll_thunk"));
     } else {