1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index 4978f4b9500..f941b98890c 100644
--- a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -1855,6 +1855,12 @@ MCSection *TargetLoweringObjectFileXCOFF::SelectSectionForGlobal(
   if (Kind.isData())
     return DataSection;
 
+  // Zero initialized data must be emitted to the .data section because external
+  // linkage control sections that get mapped to the .bss section will be linked
+  // as tentative defintions, which is only appropriate for SectionKind::Common.
+  if (Kind.isBSS())
+    return DataSection;
+
   report_fatal_error("XCOFF other section types not yet implemented.");
 }