Add the ability to iterate across all attributes in a DIE.

Differential Revision: https://reviews.llvm.org/D28386

llvm-svn: 291861

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp b/llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp
index dc9310dc4e8..0bed1a1e99c 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp
@@ -400,7 +400,9 @@ bool DWARFFormValue::extractValue(const DataExtractor &data,
       Value.uval = data.getULEB128(offset_ptr);
       break;
     default:
-      return false;
+      // DWARFFormValue::skipValue() will have caught this and caused all
+      // DWARF DIEs to fail to be parsed, so this code is not be reachable.
+      llvm_unreachable("unsupported form");
     }
   } while (indirect);