Remove DebugLabelFolder pass. It is not used by dwarf writer anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89790 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 0 insertions, 21 deletions

diff --git a/include/llvm/CodeGen/MachineModuleInfo.h b/include/llvm/CodeGen/MachineModuleInfo.h
index 47616ce344..bac9fce467 100644
--- a/include/llvm/CodeGen/MachineModuleInfo.h
+++ b/include/llvm/CodeGen/MachineModuleInfo.h
@@ -135,9 +135,6 @@ class MachineModuleInfo : public ImmutablePass {
   /// llvm.compiler.used.
   SmallPtrSet<const Function *, 32> UsedFunctions;
 
-  /// UsedDbgLabels - labels are used by debug info entries.
-  SmallSet<unsigned, 8> UsedDbgLabels;
-
   bool CallsEHReturn;
   bool CallsUnwindInit;
  
@@ -232,19 +229,6 @@ public:
     return LabelID ? LabelIDList[LabelID - 1] : 0;
   }
 
-  /// isDbgLabelUsed - Return true if label with LabelID is used by
-  /// DwarfWriter.
-  bool isDbgLabelUsed(unsigned LabelID) {
-    return UsedDbgLabels.count(LabelID);
-  }
-  
-  /// RecordUsedDbgLabel - Mark label with LabelID as used. This is used
-  /// by DwarfWriter to inform DebugLabelFolder that certain labels are
-  /// not to be deleted.
-  void RecordUsedDbgLabel(unsigned LabelID) {
-    UsedDbgLabels.insert(LabelID);
-  }
-
   /// getFrameMoves - Returns a reference to a list of moves done in the current
   /// function's prologue.  Used to construct frame maps for debug and exception
   /// handling comsumers.
diff --git a/include/llvm/CodeGen/Passes.h b/include/llvm/CodeGen/Passes.h
index d0d610370b..99444984b4 100644
--- a/include/llvm/CodeGen/Passes.h
+++ b/include/llvm/CodeGen/Passes.h
@@ -136,11 +136,6 @@ namespace llvm {
   /// headers to target specific alignment boundary.
   FunctionPass *createCodePlacementOptPass();
 
-  /// DebugLabelFoldingPass - This pass prunes out redundant debug labels.  This
-  /// allows a debug emitter to determine if the range of two labels is empty,
-  /// by seeing if the labels map to the same reduced label.
-  FunctionPass *createDebugLabelFoldingPass();
-
   /// getRegisterAllocator - This creates an instance of the register allocator
   /// for the Sparc.
   FunctionPass *getRegisterAllocator(TargetMachine &T);