The Dwarf writer was comparing mangled and unmangled names for C++ code when we
have an unreachable block in a function. This was triggering the assert. This is
a horrid hack to cover this up.

Oh! for a good debug info architecture!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57714 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
index 3cfe00e..1cf75b9 100644
--- a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
@@ -2060,8 +2060,11 @@
         return;
       }
     }
-
+#if 0
+    // FIXME: This is causing an abort because C++ mangled names are compared
+    // with their unmangled counterparts. See PR2885. Don't do this assert.
     assert(0 && "Couldn't find DIE for machine function!");
+#endif
   }
 
   /// EmitInitial - Emit initial Dwarf declarations.  This is necessary for cc