Provide proper section flags for various BSS flavours

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81322 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetLoweringObjectFile.cpp b/lib/Target/TargetLoweringObjectFile.cpp
index 61bf5b0..825a9d3 100644
--- a/lib/Target/TargetLoweringObjectFile.cpp
+++ b/lib/Target/TargetLoweringObjectFile.cpp
@@ -439,8 +439,12 @@
   if (Name[0] != '.') return K;
 
   // Some lame default implementation based on some magic section names.
-  if (strncmp(Name, ".gnu.linkonce.b.", 16) == 0 ||
+  if (strcmp(Name, ".bss") == 0 ||
+      strncmp(Name, ".bss.", 5) == 0 ||
+      strncmp(Name, ".gnu.linkonce.b.", 16) == 0 ||
       strncmp(Name, ".llvm.linkonce.b.", 17) == 0 ||
+      strcmp(Name, ".sbss") == 0 ||
+      strncmp(Name, ".sbss.", 6) == 0 ||
       strncmp(Name, ".gnu.linkonce.sb.", 17) == 0 ||
       strncmp(Name, ".llvm.linkonce.sb.", 18) == 0)
     return SectionKind::getBSS();