Sink dwarf unit length emission down into DwarfUnit::emitHeader

This allows the CU label to be emitted only for compile units, as
they're the only ones that need it (so they can be referenced from
pubnames)

llvm-svn: 221072

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index d214e36677f..885be61b7c9 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -686,4 +686,12 @@ void DwarfCompileUnit::collectDeadVariables(DISubprogram SP) {
   }
 }
 
+void DwarfCompileUnit::emitHeader(const MCSymbol *ASectionSym) const {
+  // Emit the compile units header.
+  Asm->OutStreamer.EmitLabel(LabelBegin);
+
+  DwarfUnit::emitHeader(ASectionSym);
+}
+
+
 } // end llvm namespace