Add some section and constant support for darwin TLS.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103974 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86AsmBackend.cpp b/lib/Target/X86/X86AsmBackend.cpp
index 8ee836e..6abba5a 100644
--- a/lib/Target/X86/X86AsmBackend.cpp
+++ b/lib/Target/X86/X86AsmBackend.cpp
@@ -222,7 +222,8 @@
   bool isVirtualSection(const MCSection &Section) const {
     const MCSectionMachO &SMO = static_cast<const MCSectionMachO&>(Section);
     return (SMO.getType() == MCSectionMachO::S_ZEROFILL ||
-            SMO.getType() == MCSectionMachO::S_GB_ZEROFILL);
+            SMO.getType() == MCSectionMachO::S_GB_ZEROFILL ||
+            SMO.getType() == MCSectionMachO::S_THREAD_LOCAL_ZEROFILL);
   }
 };