#define LLVM_PROFILEDATA_COVERAGEMAPPING_H_
#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/Hashing.h"
+#include "llvm/ADT/iterator.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/raw_ostream.h"
#include <system_error>
unsigned getExpressionID() const { return ID; }
- bool operator==(const Counter &Other) const {
- return Kind == Other.Kind && ID == Other.ID;
+ friend bool operator==(const Counter &LHS, const Counter &RHS) {
+ return LHS.Kind == RHS.Kind && LHS.ID == RHS.ID;
+ }
+
+ friend bool operator!=(const Counter &LHS, const Counter &RHS) {
+ return !(LHS == RHS);
}
friend bool operator<(const Counter &LHS, const Counter &RHS) {
CounterExpression(ExprKind Kind, Counter LHS, Counter RHS)
: Kind(Kind), LHS(LHS), RHS(RHS) {}
-
- bool operator==(const CounterExpression &Other) const {
- return Kind == Other.Kind && LHS == Other.LHS && RHS == Other.RHS;
- }
};
/// \brief A Counter expression builder is used to construct the
/// and simplifies algebraic expressions.
class CounterExpressionBuilder {
/// \brief A list of all the counter expressions
- llvm::SmallVector<CounterExpression, 16> Expressions;
- /// \brief An array of terms used in expression simplification.
- llvm::SmallVector<int, 16> Terms;
+ std::vector<CounterExpression> Expressions;
+ /// \brief A lookup table for the index of a given expression.
+ llvm::DenseMap<CounterExpression, unsigned> ExpressionIndices;
/// \brief Return the counter which corresponds to the given expression.
///
/// expression is added to the builder's collection of expressions.
Counter get(const CounterExpression &E);
- /// \brief Convert the expression tree represented by a counter
- /// into a polynomial in the form of K1Counter1 + .. + KNCounterN
- /// where K1 .. KN are integer constants that are stored in the Terms array.
- void extractTerms(Counter C, int Sign = 1);
+ /// \brief Gather the terms of the expression tree for processing.
+ ///
+ /// This collects each addition and subtraction referenced by the counter into
+ /// a sequence that can be sorted and combined to build a simplified counter
+ /// expression.
+ void extractTerms(Counter C, int Sign,
+ SmallVectorImpl<std::pair<unsigned, int>> &Terms);
/// \brief Simplifies the given expression tree
/// by getting rid of algebraically redundant operations.
Counter simplify(Counter ExpressionTree);
public:
- CounterExpressionBuilder(unsigned NumCounterValues);
-
ArrayRef<CounterExpression> getExpressions() const { return Expressions; }
/// \brief Return a counter that represents the expression
: Expressions(Expressions), CounterValues(CounterValues) {}
void dump(const Counter &C, llvm::raw_ostream &OS) const;
- void dump(const Counter &C) const { dump(C, llvm::outs()); }
+ void dump(const Counter &C) const { dump(C, dbgs()); }
/// \brief Return the number of times that a region of code associated with
/// this counter was executed.
ExecutionCount(ExecutionCount) {}
};
+/// \brief Iterator over Functions, optionally filtered to a single file.
+class FunctionRecordIterator
+ : public iterator_facade_base<FunctionRecordIterator,
+ std::forward_iterator_tag, FunctionRecord> {
+ ArrayRef<FunctionRecord> Records;
+ ArrayRef<FunctionRecord>::iterator Current;
+ StringRef Filename;
+
+ /// \brief Skip records whose primary file is not \c Filename.
+ void skipOtherFiles();
+
+public:
+ FunctionRecordIterator(ArrayRef<FunctionRecord> Records_,
+ StringRef Filename = "")
+ : Records(Records_), Current(Records.begin()), Filename(Filename) {
+ skipOtherFiles();
+ }
+
+ FunctionRecordIterator() : Current(Records.begin()) {}
+
+ bool operator==(const FunctionRecordIterator &RHS) const {
+ return Current == RHS.Current && Filename == RHS.Filename;
+ }
+
+ const FunctionRecord &operator*() const { return *Current; }
+
+ FunctionRecordIterator &operator++() {
+ assert(Current != Records.end() && "incremented past end");
+ ++Current;
+ skipOtherFiles();
+ return *this;
+ }
+};
+
/// \brief Coverage information for a macro expansion or #included file.
///
/// When covered code has pieces that can be expanded for more detail, such as a
unsigned getMismatchedCount() { return MismatchedFunctionCount; }
/// \brief Returns the list of files that are covered.
- std::vector<StringRef> getUniqueSourceFiles();
+ std::vector<StringRef> getUniqueSourceFiles() const;
/// \brief Get the coverage for a particular file.
///
CoverageData getCoverageForFile(StringRef Filename);
/// \brief Gets all of the functions covered by this profile.
- ArrayRef<FunctionRecord> getCoveredFunctions() {
- return ArrayRef<FunctionRecord>(Functions.data(), Functions.size());
+ iterator_range<FunctionRecordIterator> getCoveredFunctions() const {
+ return make_range(FunctionRecordIterator(Functions),
+ FunctionRecordIterator());
+ }
+
+ /// \brief Gets all of the functions in a particular file.
+ iterator_range<FunctionRecordIterator>
+ getCoveredFunctions(StringRef Filename) const {
+ return make_range(FunctionRecordIterator(Functions, Filename),
+ FunctionRecordIterator());
}
/// \brief Get the list of function instantiations in the file.
};
} // end namespace coverage
+
+/// \brief Provide DenseMapInfo for CounterExpression
+template<> struct DenseMapInfo<coverage::CounterExpression> {
+ static inline coverage::CounterExpression getEmptyKey() {
+ using namespace coverage;
+ return CounterExpression(CounterExpression::ExprKind::Subtract,
+ Counter::getCounter(~0U),
+ Counter::getCounter(~0U));
+ }
+
+ static inline coverage::CounterExpression getTombstoneKey() {
+ using namespace coverage;
+ return CounterExpression(CounterExpression::ExprKind::Add,
+ Counter::getCounter(~0U),
+ Counter::getCounter(~0U));
+ }
+
+ static unsigned getHashValue(const coverage::CounterExpression &V) {
+ return static_cast<unsigned>(
+ hash_combine(V.Kind, V.LHS.getKind(), V.LHS.getCounterID(),
+ V.RHS.getKind(), V.RHS.getCounterID()));
+ }
+
+ static bool isEqual(const coverage::CounterExpression &LHS,
+ const coverage::CounterExpression &RHS) {
+ return LHS.Kind == RHS.Kind && LHS.LHS == RHS.LHS && LHS.RHS == RHS.RHS;
+ }
+};
+
+
} // end namespace llvm
#endif // LLVM_PROFILEDATA_COVERAGEMAPPING_H_
projects / oota-llvm.git / blobdiff