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b65ff27f53
emit incomplete types, because they crash llc, and always use the logical location as the current location so we don't crash doing invalid queries on CurLoc. llvm-svn: 51675
122 lines
4.0 KiB
C++
122 lines
4.0 KiB
C++
//===--- CGDebugInfo.h - DebugInfo for LLVM CodeGen -----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This is the source level debug info generator for llvm translation.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CLANG_CODEGEN_CGDEBUGINFO_H
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#define CLANG_CODEGEN_CGDEBUGINFO_H
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#include "clang/AST/Type.h"
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#include "clang/Basic/SourceLocation.h"
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#include <map>
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#include <vector>
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namespace llvm {
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class Function;
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class IRBuilder;
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class DISerializer;
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class CompileUnitDesc;
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class BasicBlock;
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class AnchorDesc;
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class DebugInfoDesc;
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class Value;
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class TypeDesc;
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class SubprogramDesc;
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}
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namespace clang {
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class FunctionDecl;
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namespace CodeGen {
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class CodeGenModule;
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/// CGDebugInfo - This class gathers all debug information during compilation
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/// and is responsible for emitting to llvm globals or pass directly to
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/// the backend.
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class CGDebugInfo {
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private:
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CodeGenModule *M;
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llvm::DISerializer *SR;
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SourceLocation CurLoc;
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SourceLocation PrevLoc;
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/// CompileUnitCache - Cache of previously constructed CompileUnits.
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std::map<unsigned, llvm::CompileUnitDesc *> CompileUnitCache;
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/// TypeCache - Cache of previously constructed Types.
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std::map<void *, llvm::TypeDesc *> TypeCache;
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llvm::Function *StopPointFn;
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llvm::Function *FuncStartFn;
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llvm::Function *DeclareFn;
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llvm::Function *RegionStartFn;
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llvm::Function *RegionEndFn;
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llvm::AnchorDesc *CompileUnitAnchor;
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llvm::AnchorDesc *SubprogramAnchor;
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std::vector<llvm::DebugInfoDesc *> RegionStack;
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llvm::SubprogramDesc *Subprogram;
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/// Helper functions for getOrCreateType.
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llvm::TypeDesc *getOrCreateCVRType(QualType type,
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llvm::CompileUnitDesc *unit);
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llvm::TypeDesc *getOrCreateBuiltinType(QualType type,
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llvm::CompileUnitDesc *unit);
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llvm::TypeDesc *getOrCreateTypedefType(QualType type,
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llvm::CompileUnitDesc *unit);
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llvm::TypeDesc *getOrCreatePointerType(QualType type,
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llvm::CompileUnitDesc *unit);
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llvm::TypeDesc *getOrCreateFunctionType(QualType type,
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llvm::CompileUnitDesc *unit);
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public:
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CGDebugInfo(CodeGenModule *m);
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~CGDebugInfo();
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void setLocation(SourceLocation loc);
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/// EmitStopPoint - Emit a call to llvm.dbg.stoppoint to indicate a change of
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/// source line.
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void EmitStopPoint(llvm::Function *Fn, llvm::IRBuilder &Builder);
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/// EmitFunctionStart - Emit a call to llvm.dbg.function.start to indicate
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/// start of a new function
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void EmitFunctionStart(const FunctionDecl *FnDecl, llvm::Function *Fn,
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llvm::IRBuilder &Builder);
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/// EmitRegionStart - Emit a call to llvm.dbg.region.start to indicate start
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/// of a new block.
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void EmitRegionStart(llvm::Function *Fn, llvm::IRBuilder &Builder);
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/// EmitRegionEnd - Emit call to llvm.dbg.region.end to indicate end of a
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/// block.
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void EmitRegionEnd(llvm::Function *Fn, llvm::IRBuilder &Builder);
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/// getOrCreateCompileUnit - Get the compile unit from the cache or create a
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/// new one if necessary.
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llvm::CompileUnitDesc *getOrCreateCompileUnit(SourceLocation loc);
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/// getOrCreateType - Get the type from the cache or create a new type if
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/// necessary.
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llvm::TypeDesc *getOrCreateType(QualType type, llvm::CompileUnitDesc *unit);
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/// getCastValueFor - Return a llvm representation for a given debug
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/// information descriptor cast to an empty struct pointer.
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llvm::Value *getCastValueFor(llvm::DebugInfoDesc *DD);
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/// getValueFor - Return a llvm representation for a given debug information
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/// descriptor.
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llvm::Value *getValueFor(llvm::DebugInfoDesc *DD);
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};
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} // namespace CodeGen
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} // namespace clang
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#endif
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