The debugger sometimes lookup dynamically in the runtime to find ivar info of any Objective-C classes. It would be very helpful to debugger if the compiler encodes runtime version number in DWARF.

Add support for two additional DWARF attributes to encode Objective-C runtime version number.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64834 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Dwarf.cpp b/lib/Support/Dwarf.cpp
index 10a2c3c..67bd1b4 100644
--- a/lib/Support/Dwarf.cpp
+++ b/lib/Support/Dwarf.cpp
@@ -200,6 +200,8 @@
     case DW_AT_hi_user:                    return "DW_AT_hi_user";
     case DW_AT_APPLE_optimized:            return "DW_AT_APPLE_optimized";
     case DW_AT_APPLE_flags:                return "DW_AT_APPLE_flags";
+    case DW_AT_APPLE_major_runtime_vers:   return "DW_AT_APPLE_major_runtime_vers";
+    case DW_AT_APPLE_runtime_class:        return "DW_AT_APPLE_runtime_class";
   }
   assert(0 && "Unknown Dwarf Attribute");
   return "";