1 files changed, 84 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGDebugInfo.h b/clang/lib/CodeGen/CGDebugInfo.h
new file mode 100644
index 00000000000..2097a1d2f06
--- /dev/null
+++ b/clang/lib/CodeGen/CGDebugInfo.h
@@ -0,0 +1,84 @@
+//===--- CGDebugInfo.h - DebugInfo for LLVM CodeGen -----------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This is the source level debug info generator for llvm translation. 
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANG_CODEGEN_CGDEBUGINFO_H
+#define CLANG_CODEGEN_CGDEBUGINFO_H
+
+#include "clang/Basic/SourceLocation.h"
+#include <map>
+#include <vector>
+
+
+namespace llvm {
+  class Function;
+  class IRBuilder;
+  class DISerializer;
+  class CompileUnitDesc;
+  class BasicBlock;
+  class AnchorDesc;
+  class DebugInfoDesc;
+  class Value;
+}
+
+namespace clang {
+namespace CodeGen {
+  class CodeGenModule;
+
+/// DebugInfo - This class gathers all debug information during compilation and
+/// is responsible for emitting to llvm globals or pass directly to the backend.
+class CGDebugInfo {
+private:
+  CodeGenModule *M;
+  llvm::DISerializer *SR;
+  SourceLocation CurLoc;
+  SourceLocation PrevLoc;
+
+  /// CompileUnitCache - Cache of previously constructed CompileUnits.
+  std::map<unsigned, llvm::CompileUnitDesc *> CompileUnitCache;
+  
+  llvm::Function *StopPointFn;
+  llvm::AnchorDesc *CompileUnitAnchor;
+  llvm::Function *RegionStartFn;
+  llvm::Function *RegionEndFn;
+  std::vector<llvm::DebugInfoDesc *> RegionStack;  
+
+public:
+  CGDebugInfo(CodeGenModule *m);
+  ~CGDebugInfo();
+
+  void setLocation(SourceLocation loc) { CurLoc = loc; };
+
+  /// EmitStopPoint - Emit a call to llvm.dbg.stoppoint to indicate a change of
+  /// source line.
+  void EmitStopPoint(llvm::Function *Fn, llvm::IRBuilder &Builder);
+  
+  /// EmitRegionStart - Emit a call to llvm.dbg.region.start to indicate start
+  /// of a new block.  
+  void EmitRegionStart(llvm::Function *Fn, llvm::IRBuilder &Builder);
+  
+  /// EmitRegionEnd - Emit call to llvm.dbg.region.end to indicate end of a 
+  /// block.
+  void EmitRegionEnd(llvm::Function *Fn, llvm::IRBuilder &Builder);
+ 
+  /// getOrCreateCompileUnit - Get the compile unit from the cache or create a
+  /// new one if necessary.
+  llvm::CompileUnitDesc *getOrCreateCompileUnit(SourceLocation loc);
+
+  /// getCastValueFor - Return a llvm representation for a given debug
+  /// information descriptor cast to an empty struct pointer.
+  llvm::Value *getCastValueFor(llvm::DebugInfoDesc *DD);
+};
+} // namespace CodeGen
+} // namespace clang
+
+#endif