add a comment about where this should eventually move.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113117 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index d358ab2..ee6d321 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -327,6 +327,13 @@
// Handle thread local data for mach-o which requires us to output an
// additional structure of data and mangle the original symbol so that we
// can reference it later.
+ //
+ // TODO: This should become an "emit thread local global" method on TLOF.
+ // All of this macho specific stuff should be sunk down into TLOFMachO and
+ // stuff like "TLSExtraDataSection" should no longer be part of the parent
+ // TLOF class. This will also make it more obvious that stuff like
+ // MCStreamer::EmitTBSSSymbol is macho specific and only called from macho
+ // specific code.
if (GVKind.isThreadLocal() && MAI->hasMachoTBSSDirective()) {
// Emit the .tbss symbol
MCSymbol *MangSym =