AArch64: add arm64_32 support to Clang.
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 63a64ed..664260d 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -122,6 +122,11 @@
   case llvm::Triple::lanai:
     return new LanaiTargetInfo(Triple, Opts);
 
+  case llvm::Triple::aarch64_32:
+    if (Triple.isOSDarwin())
+      return new DarwinAArch64TargetInfo(Triple, Opts);
+
+    return nullptr;
   case llvm::Triple::aarch64:
     if (Triple.isOSDarwin())
       return new DarwinAArch64TargetInfo(Triple, Opts);