Add a default debug location object to the Machine Function. It's used to emit a default debugging label at the beginning of a function.

llvm-svn: 65091

1 files changed, 12 insertions, 0 deletions

diff --git a/llvm/include/llvm/CodeGen/MachineFunction.h b/llvm/include/llvm/CodeGen/MachineFunction.h
index a039e23399b..689e4357b1d 100644
--- a/llvm/include/llvm/CodeGen/MachineFunction.h
+++ b/llvm/include/llvm/CodeGen/MachineFunction.h
@@ -95,6 +95,10 @@ class MachineFunction : private Annotation {
   typedef ilist<MachineBasicBlock> BasicBlockListType;
   BasicBlockListType BasicBlocks;
 
+  // Default debug location. Used to print out the debug label at the beginning
+  // of a function.
+  DebugLoc DefaultDebugLoc;
+
   // Tracks debug locations.
   DebugLocTracker DebugLocInfo;
 
@@ -319,6 +323,14 @@ public:
 
   /// getDebugLocTuple - Get the DebugLocTuple for a given DebugLoc object.
   DebugLocTuple getDebugLocTuple(DebugLoc DL) const;
+
+  /// getDefaultDebugLoc - Get the default debug location for the machine
+  /// function.
+  DebugLoc getDefaultDebugLoc() const { return DefaultDebugLoc; }
+
+  /// setDefaultDebugLoc - Get the default debug location for the machine
+  /// function.
+  void setDefaultDebugLoc(DebugLoc DL) { DefaultDebugLoc = DL; }
 };
 
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