reapply r98035:

Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98047 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 4 deletions

diff --git a/include/llvm/CodeGen/DwarfWriter.h b/include/llvm/CodeGen/DwarfWriter.h
index d59e22a..3c7f802 100644
--- a/include/llvm/CodeGen/DwarfWriter.h
+++ b/include/llvm/CodeGen/DwarfWriter.h
@@ -35,6 +35,7 @@ class Value;
 class Module;
 class MDNode;
 class MCAsmInfo;
+class MCSymbol;
 class raw_ostream;
 class Instruction;
 class DICompileUnit;
@@ -82,10 +83,10 @@ public:
   ///
   void EndFunction(const MachineFunction *MF);
 
-  /// RecordSourceLine - Register a source line with debug info. Returns a
-  /// unique label ID used to generate a label and provide correspondence to
+  /// RecordSourceLine - Register a source line with debug info. Returns the
+  /// unique label that was emitted and which provides correspondence to
   /// the source line list.
-  unsigned RecordSourceLine(unsigned Line, unsigned Col, MDNode *Scope);
+  MCSymbol *RecordSourceLine(unsigned Line, unsigned Col, MDNode *Scope);
 
   /// getRecordSourceLineCount - Count source lines.
   unsigned getRecordSourceLineCount();
@@ -94,7 +95,7 @@ public:
   /// be emitted.
   bool ShouldEmitDwarfDebug() const;
 
-  void BeginScope(const MachineInstr *MI, unsigned Label);
+  void BeginScope(const MachineInstr *MI, MCSymbol *Label);
   void EndScope(const MachineInstr *MI);
 };