| //===--- 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; |
| std::vector<llvm::DebugInfoDesc*> DebugAllocationList; |
| |
| llvm::Function *StopPointFn; |
| llvm::AnchorDesc *CompileUnitAnchor; |
| llvm::AnchorDesc *SubProgramAnchor; |
| llvm::Function *RegionStartFn; |
| llvm::Function *RegionEndFn; |
| llvm::Function *FuncStartFn; |
| llvm::Value *CurFuncDesc; |
| |
| /// 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); |
| |
| 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); |
| |
| /// EmitFunctionStart - Emit a call to llvm.dbg.func.start to indicate start |
| /// of a new block. |
| void EmitFunctionStart(llvm::Function *Fn, llvm::IRBuilder &Builder); |
| |
| /// EmitFunctionEnd - Emit call to llvm.dbg.region.end to indicate end of a |
| /// block. |
| void EmitFunctionEnd(llvm::Function *Fn, llvm::IRBuilder &Builder); |
| }; |
| } // namespace CodeGen |
| } // namespace clang |
| |
| #endif |