Index: source/Plugins/SymbolFile/NativePDB/PdbFPOProgramToDWARFExpression.cpp
===================================================================
--- source/Plugins/SymbolFile/NativePDB/PdbFPOProgramToDWARFExpression.cpp
+++ source/Plugins/SymbolFile/NativePDB/PdbFPOProgramToDWARFExpression.cpp
@@ -23,10 +23,16 @@
 using namespace lldb_private;
 using namespace lldb_private::postfix;
 
-static uint32_t ResolveLLDBRegisterNum(llvm::StringRef reg_name, llvm::Triple::ArchType arch_type) {
+static uint32_t ResolveLLDBRegisterNum(llvm::StringRef reg_name,
+                                       llvm::Triple::ArchType arch_type) {
+  bool isARM64 = arch_type == llvm::Triple::aarch64 ||
+                 arch_type == llvm::Triple::aarch64_32 ||
+                 arch_type == llvm::Triple::aarch64_be;
   // lookup register name to get lldb register number
   llvm::ArrayRef<llvm::EnumEntry<uint16_t>> register_names =
-      llvm::codeview::getRegisterNames();
+      llvm::codeview::getRegisterNames(
+          isARM64 ? llvm::codeview::CPUType::ARM64
+                  : llvm::codeview::CPUType::Intel8086);
   auto it = llvm::find_if(
       register_names,
       [&reg_name](const llvm::EnumEntry<uint16_t> &register_entry) {