[LLDB] [Windows] Initial support for ARM64 register contexts

Differential Revision: https://reviews.llvm.org/D67954

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374866 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/lit/lit/llvm/config.py b/utils/lit/lit/llvm/config.py
index c832347..5b13e8d 100644
--- a/utils/lit/lit/llvm/config.py
+++ b/utils/lit/lit/llvm/config.py
@@ -97,6 +97,8 @@
                 features.add('target-x86')
             elif re.match(r'^x86_64.*', target_triple):
                 features.add('target-x86_64')
+            elif re.match(r'^aarch64.*', target_triple):
+                features.add('target-aarch64')
 
         use_gmalloc = lit_config.params.get('use_gmalloc', None)
         if lit.util.pythonize_bool(use_gmalloc):