Index: lldb/trunk/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp
===================================================================
--- lldb/trunk/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp
+++ lldb/trunk/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp
@@ -198,6 +198,10 @@
     spec.SetTriple("arm-pc-windows");
     specs.Append(module_spec);
     break;
+  case MachineArm64:
+    spec.SetTriple("aarch64-unknown-windows");
+    specs.Append(module_spec);
+    break;
   default:
     break;
   }
@@ -1200,6 +1204,7 @@
   case llvm::COFF::IMAGE_FILE_MACHINE_ARM:
   case llvm::COFF::IMAGE_FILE_MACHINE_ARMNT:
   case llvm::COFF::IMAGE_FILE_MACHINE_THUMB:
+  case llvm::COFF::IMAGE_FILE_MACHINE_ARM64:
     ArchSpec arch;
     arch.SetArchitecture(eArchTypeCOFF, machine, LLDB_INVALID_CPUTYPE,
                          IsWindowsSubsystem() ? llvm::Triple::Win32