Add a TODO and explain when we can get rid of the isMain field.
llvm-svn: 175932
diff --git a/llvm/lib/IR/DIBuilder.cpp b/llvm/lib/IR/DIBuilder.cpp
index 16632a1..3b69119 100644
--- a/llvm/lib/IR/DIBuilder.cpp
+++ b/llvm/lib/IR/DIBuilder.cpp
@@ -98,7 +98,7 @@
MDString::get(VMContext, Filename),
MDString::get(VMContext, Directory),
MDString::get(VMContext, Producer),
- // Deprecate isMain field.
+ // isMain field can be removed when we remove the legacy debug info.
ConstantInt::get(Type::getInt1Ty(VMContext), true), // isMain
ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
MDString::get(VMContext, Flags),