Add arm64_32 support to lldb, an ILP32 codegen 
that runs on arm64 ISA targets, specifically 
Apple watches.


Differential Revision: https://reviews.llvm.org/D68858

llvm-svn: 375032
diff --git a/lldb/source/Symbol/CompactUnwindInfo.cpp b/lldb/source/Symbol/CompactUnwindInfo.cpp
index 363853c..3eee7f7 100644
--- a/lldb/source/Symbol/CompactUnwindInfo.cpp
+++ b/lldb/source/Symbol/CompactUnwindInfo.cpp
@@ -213,7 +213,8 @@
         return CreateUnwindPlan_x86_64(target, function_info, unwind_plan,
                                        addr);
       }
-      if (arch.GetTriple().getArch() == llvm::Triple::aarch64) {
+      if (arch.GetTriple().getArch() == llvm::Triple::aarch64 ||
+          arch.GetTriple().getArch() == llvm::Triple::aarch64_32) {
         return CreateUnwindPlan_arm64(target, function_info, unwind_plan, addr);
       }
       if (arch.GetTriple().getArch() == llvm::Triple::x86) {