Partial code for emitting thread local bss data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104197 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCAsmInfo.cpp b/lib/MC/MCAsmInfo.cpp
index 2b23994..a275be2 100644
--- a/lib/MC/MCAsmInfo.cpp
+++ b/lib/MC/MCAsmInfo.cpp
@@ -21,6 +21,7 @@
 MCAsmInfo::MCAsmInfo() {
   HasSubsectionsViaSymbols = false;
   HasMachoZeroFillDirective = false;
+  HasMachoTBSSDirective = false;
   HasStaticCtorDtorReferenceInStaticMode = false;
   MaxInstLength = 4;
   PCSymbol = "$";
diff --git a/lib/MC/MCAsmInfoDarwin.cpp b/lib/MC/MCAsmInfoDarwin.cpp
index 3c31caa..0bd3b2d 100644
--- a/lib/MC/MCAsmInfoDarwin.cpp
+++ b/lib/MC/MCAsmInfoDarwin.cpp
@@ -35,6 +35,7 @@
   WeakRefDirective = "\t.weak_reference ";
   ZeroDirective = "\t.space\t";  // ".space N" emits N zeros.
   HasMachoZeroFillDirective = true;  // Uses .zerofill
+  HasMachoTBSSDirective = true; // Uses .tbss
   HasStaticCtorDtorReferenceInStaticMode = true;
   
   HiddenVisibilityAttr = MCSA_PrivateExtern;