0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
//===---- CoverageMappingGen.h - Coverage mapping generation ----*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Instrumentation-based code coverage mapping generator
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CLANG_LIB_CODEGEN_COVERAGEMAPPINGGEN_H
|
|
#define LLVM_CLANG_LIB_CODEGEN_COVERAGEMAPPINGGEN_H
|
|
|
|
#include "clang/Basic/LLVM.h"
|
|
#include "clang/Basic/SourceLocation.h"
|
|
#include "clang/Frontend/CodeGenOptions.h"
|
|
#include "clang/Lex/PPCallbacks.h"
|
|
#include "llvm/ADT/DenseMap.h"
|
|
#include "llvm/ADT/StringMap.h"
|
|
#include "llvm/IR/GlobalValue.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
|
|
namespace clang {
|
|
|
|
class LangOptions;
|
|
class SourceManager;
|
|
class FileEntry;
|
|
class Preprocessor;
|
|
class Decl;
|
|
class Stmt;
|
|
|
|
/// \brief Stores additional source code information like skipped ranges which
|
|
/// is required by the coverage mapping generator and is obtained from
|
|
/// the preprocessor.
|
|
class CoverageSourceInfo : public PPCallbacks {
|
|
std::vector<SourceRange> SkippedRanges;
|
|
public:
|
|
ArrayRef<SourceRange> getSkippedRanges() const { return SkippedRanges; }
|
|
|
|
void SourceRangeSkipped(SourceRange Range) override;
|
|
};
|
|
|
|
namespace CodeGen {
|
|
|
|
class CodeGenModule;
|
|
|
|
/// \brief Organizes the cross-function state that is used while generating
|
|
/// code coverage mapping data.
|
|
class CoverageMappingModuleGen {
|
|
CodeGenModule &CGM;
|
|
CoverageSourceInfo &SourceInfo;
|
|
llvm::SmallDenseMap<const FileEntry *, unsigned, 8> FileEntries;
|
|
std::vector<llvm::Constant *> FunctionRecords;
|
|
llvm::StructType *FunctionRecordTy;
|
|
std::string CoverageMappings;
|
|
|
|
public:
|
|
CoverageMappingModuleGen(CodeGenModule &CGM, CoverageSourceInfo &SourceInfo)
|
|
: CGM(CGM), SourceInfo(SourceInfo), FunctionRecordTy(nullptr) {}
|
|
|
|
CoverageSourceInfo &getSourceInfo() const {
|
|
return SourceInfo;
|
|
}
|
|
|
|
/// \brief Add a function's coverage mapping record to the collection of the
|
|
/// function mapping records.
|
|
void addFunctionMappingRecord(llvm::GlobalVariable *FunctionName,
|
|
StringRef FunctionNameValue,
|
|
uint64_t FunctionHash,
|
|
const std::string &CoverageMapping);
|
|
|
|
/// \brief Emit the coverage mapping data for a translation unit.
|
|
void emit();
|
|
|
|
/// \brief Return the coverage mapping translation unit file id
|
|
/// for the given file.
|
|
unsigned getFileID(const FileEntry *File);
|
|
};
|
|
|
|
/// \brief Organizes the per-function state that is used while generating
|
|
/// code coverage mapping data.
|
|
class CoverageMappingGen {
|
|
CoverageMappingModuleGen &CVM;
|
|
SourceManager &SM;
|
|
const LangOptions &LangOpts;
|
|
llvm::DenseMap<const Stmt *, unsigned> *CounterMap;
|
|
|
|
public:
|
|
CoverageMappingGen(CoverageMappingModuleGen &CVM, SourceManager &SM,
|
|
const LangOptions &LangOpts)
|
|
: CVM(CVM), SM(SM), LangOpts(LangOpts), CounterMap(nullptr) {}
|
|
|
|
CoverageMappingGen(CoverageMappingModuleGen &CVM, SourceManager &SM,
|
|
const LangOptions &LangOpts,
|
|
llvm::DenseMap<const Stmt *, unsigned> *CounterMap)
|
|
: CVM(CVM), SM(SM), LangOpts(LangOpts), CounterMap(CounterMap) {}
|
|
|
|
/// \brief Emit the coverage mapping data which maps the regions of
|
|
/// code to counters that will be used to find the execution
|
|
/// counts for those regions.
|
|
void emitCounterMapping(const Decl *D, llvm::raw_ostream &OS);
|
|
|
|
/// \brief Emit the coverage mapping data for an unused function.
|
|
/// It creates mapping regions with the counter of zero.
|
|
void emitEmptyMapping(const Decl *D, llvm::raw_ostream &OS);
|
|
};
|
|
|
|
} // end namespace CodeGen
|
|
} // end namespace clang
|
|
|
|
#endif
|