-//===- GCOVr.cpp - LLVM coverage tool -------------------------------------===//
+//===- GCOV.cpp - LLVM coverage tool --------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
//
-// GCOV implements the interface to read and write coverage files that use
+// GCOV implements the interface to read and write coverage files that use
// 'gcov' format.
//
//===----------------------------------------------------------------------===//
+#include "llvm/Support/Debug.h"
#include "llvm/Support/GCOV.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/Format.h"
#include "llvm/Support/MemoryObject.h"
#include "llvm/Support/system_error.h"
+#include <algorithm>
using namespace llvm;
//===----------------------------------------------------------------------===//
DeleteContainerPointers(Functions);
}
-/// isGCDAFile - Return true if Format identifies a .gcda file.
-static bool isGCDAFile(GCOV::GCOVFormat Format) {
- return Format == GCOV::GCDA_402 || Format == GCOV::GCDA_404;
-}
+/// readGCNO - Read GCNO buffer.
+bool GCOVFile::readGCNO(GCOVBuffer &Buffer) {
+ if (!Buffer.readGCNOFormat()) return false;
+ if (!Buffer.readGCOVVersion(Version)) return false;
+
+ if (!Buffer.readInt(Checksum)) return false;
+ while (true) {
+ if (!Buffer.readFunctionTag()) break;
+ GCOVFunction *GFun = new GCOVFunction(*this);
+ if (!GFun->readGCNO(Buffer, Version))
+ return false;
+ Functions.push_back(GFun);
+ }
-/// isGCNOFile - Return true if Format identifies a .gcno file.
-static bool isGCNOFile(GCOV::GCOVFormat Format) {
- return Format == GCOV::GCNO_402 || Format == GCOV::GCNO_404;
+ GCNOInitialized = true;
+ return true;
}
-/// read - Read GCOV buffer.
-bool GCOVFile::read(GCOVBuffer &Buffer) {
- GCOV::GCOVFormat Format = Buffer.readGCOVFormat();
- if (Format == GCOV::InvalidGCOV)
+/// readGCDA - Read GCDA buffer. It is required that readGCDA() can only be
+/// called after readGCNO().
+bool GCOVFile::readGCDA(GCOVBuffer &Buffer) {
+ assert(GCNOInitialized && "readGCDA() can only be called after readGCNO()");
+ if (!Buffer.readGCDAFormat()) return false;
+ GCOV::GCOVVersion GCDAVersion;
+ if (!Buffer.readGCOVVersion(GCDAVersion)) return false;
+ if (Version != GCDAVersion) {
+ errs() << "GCOV versions do not match.\n";
return false;
+ }
- unsigned i = 0;
- while (1) {
- GCOVFunction *GFun = NULL;
- if (isGCDAFile(Format)) {
- // Use existing function while reading .gcda file.
- assert(i < Functions.size() && ".gcda data does not match .gcno data");
- GFun = Functions[i];
- } else if (isGCNOFile(Format)){
- GFun = new GCOVFunction();
- Functions.push_back(GFun);
+ uint32_t GCDAChecksum;
+ if (!Buffer.readInt(GCDAChecksum)) return false;
+ if (Checksum != GCDAChecksum) {
+ errs() << "File checksums do not match: " << Checksum << " != "
+ << GCDAChecksum << ".\n";
+ return false;
+ }
+ for (size_t i = 0, e = Functions.size(); i < e; ++i) {
+ if (!Buffer.readFunctionTag()) {
+ errs() << "Unexpected number of functions.\n";
+ return false;
}
- if (!GFun || !GFun->read(Buffer, Format))
- break;
- ++i;
+ if (!Functions[i]->readGCDA(Buffer, Version))
+ return false;
+ }
+ if (Buffer.readObjectTag()) {
+ uint32_t Length;
+ uint32_t Dummy;
+ if (!Buffer.readInt(Length)) return false;
+ if (!Buffer.readInt(Dummy)) return false; // checksum
+ if (!Buffer.readInt(Dummy)) return false; // num
+ if (!Buffer.readInt(RunCount)) return false;
+ Buffer.advanceCursor(Length-3);
+ }
+ while (Buffer.readProgramTag()) {
+ uint32_t Length;
+ if (!Buffer.readInt(Length)) return false;
+ Buffer.advanceCursor(Length);
+ ++ProgramCount;
}
+
return true;
}
-/// dump - Dump GCOVFile content on standard out for debugging purposes.
-void GCOVFile::dump() {
- for (SmallVectorImpl<GCOVFunction *>::iterator I = Functions.begin(),
+/// dump - Dump GCOVFile content to dbgs() for debugging purposes.
+void GCOVFile::dump() const {
+ for (SmallVectorImpl<GCOVFunction *>::const_iterator I = Functions.begin(),
E = Functions.end(); I != E; ++I)
(*I)->dump();
}
/// reading .gcno and .gcda files.
void GCOVFile::collectLineCounts(FileInfo &FI) {
for (SmallVectorImpl<GCOVFunction *>::iterator I = Functions.begin(),
- E = Functions.end(); I != E; ++I)
+ E = Functions.end(); I != E; ++I)
(*I)->collectLineCounts(FI);
- FI.print();
+ FI.setRunCount(RunCount);
+ FI.setProgramCount(ProgramCount);
}
//===----------------------------------------------------------------------===//
/// ~GCOVFunction - Delete GCOVFunction and its content.
GCOVFunction::~GCOVFunction() {
DeleteContainerPointers(Blocks);
+ DeleteContainerPointers(Edges);
}
-/// read - Read a aunction from the buffer. Return false if buffer cursor
-/// does not point to a function tag.
-bool GCOVFunction::read(GCOVBuffer &Buff, GCOV::GCOVFormat Format) {
- if (!Buff.readFunctionTag())
- return false;
-
- Buff.readInt(); // Function header length
- Ident = Buff.readInt();
- Buff.readInt(); // Checksum #1
- if (Format != GCOV::GCNO_402 && Format != GCOV::GCDA_402)
- Buff.readInt(); // Checksum #2
-
- Name = Buff.readString();
- if (Format == GCOV::GCNO_402 || Format == GCOV::GCNO_404)
- Filename = Buff.readString();
-
- if (Format == GCOV::GCDA_402 || Format == GCOV::GCDA_404) {
- Buff.readArcTag();
- uint32_t Count = Buff.readInt() / 2;
- for (unsigned i = 0, e = Count; i != e; ++i) {
- Blocks[i]->addCount(Buff.readInt64());
+/// readGCNO - Read a function from the GCNO buffer. Return false if an error
+/// occurs.
+bool GCOVFunction::readGCNO(GCOVBuffer &Buff, GCOV::GCOVVersion Version) {
+ uint32_t Dummy;
+ if (!Buff.readInt(Dummy)) return false; // Function header length
+ if (!Buff.readInt(Ident)) return false;
+ if (!Buff.readInt(Checksum)) return false;
+ if (Version != GCOV::V402) {
+ uint32_t CfgChecksum;
+ if (!Buff.readInt(CfgChecksum)) return false;
+ if (Parent.getChecksum() != CfgChecksum) {
+ errs() << "File checksums do not match: " << Parent.getChecksum()
+ << " != " << CfgChecksum << " in (" << Name << ").\n";
+ return false;
}
- return true;
}
-
- LineNumber = Buff.readInt();
+ if (!Buff.readString(Name)) return false;
+ if (!Buff.readString(Filename)) return false;
+ if (!Buff.readInt(LineNumber)) return false;
// read blocks.
- bool BlockTagFound = Buff.readBlockTag();
- (void)BlockTagFound;
- assert(BlockTagFound && "Block Tag not found!");
- uint32_t BlockCount = Buff.readInt();
- for (int i = 0, e = BlockCount; i != e; ++i) {
- Buff.readInt(); // Block flags;
- Blocks.push_back(new GCOVBlock(i));
+ if (!Buff.readBlockTag()) {
+ errs() << "Block tag not found.\n";
+ return false;
+ }
+ uint32_t BlockCount;
+ if (!Buff.readInt(BlockCount)) return false;
+ for (uint32_t i = 0, e = BlockCount; i != e; ++i) {
+ if (!Buff.readInt(Dummy)) return false; // Block flags;
+ Blocks.push_back(new GCOVBlock(*this, i));
}
// read edges.
while (Buff.readEdgeTag()) {
- uint32_t EdgeCount = (Buff.readInt() - 1) / 2;
- uint32_t BlockNo = Buff.readInt();
- assert(BlockNo < BlockCount && "Unexpected Block number!");
- for (int i = 0, e = EdgeCount; i != e; ++i) {
- Blocks[BlockNo]->addEdge(Buff.readInt());
- Buff.readInt(); // Edge flag
+ uint32_t EdgeCount;
+ if (!Buff.readInt(EdgeCount)) return false;
+ EdgeCount = (EdgeCount - 1) / 2;
+ uint32_t BlockNo;
+ if (!Buff.readInt(BlockNo)) return false;
+ if (BlockNo >= BlockCount) {
+ errs() << "Unexpected block number: " << BlockNo << " (in " << Name
+ << ").\n";
+ return false;
+ }
+ for (uint32_t i = 0, e = EdgeCount; i != e; ++i) {
+ uint32_t Dst;
+ if (!Buff.readInt(Dst)) return false;
+ GCOVEdge *Edge = new GCOVEdge(Blocks[BlockNo], Blocks[Dst]);
+ Edges.push_back(Edge);
+ Blocks[BlockNo]->addDstEdge(Edge);
+ Blocks[Dst]->addSrcEdge(Edge);
+ if (!Buff.readInt(Dummy)) return false; // Edge flag
}
}
// read line table.
while (Buff.readLineTag()) {
- uint32_t LineTableLength = Buff.readInt();
- uint32_t Size = Buff.getCursor() + LineTableLength*4;
- uint32_t BlockNo = Buff.readInt();
- assert(BlockNo < BlockCount && "Unexpected Block number!");
+ uint32_t LineTableLength;
+ if (!Buff.readInt(LineTableLength)) return false;
+ uint32_t EndPos = Buff.getCursor() + LineTableLength*4;
+ uint32_t BlockNo;
+ if (!Buff.readInt(BlockNo)) return false;
+ if (BlockNo >= BlockCount) {
+ errs() << "Unexpected block number: " << BlockNo << " (in " << Name
+ << ").\n";
+ return false;
+ }
GCOVBlock *Block = Blocks[BlockNo];
- Buff.readInt(); // flag
- while (Buff.getCursor() != (Size - 4)) {
- StringRef Filename = Buff.readString();
- if (Buff.getCursor() == (Size - 4)) break;
- while (uint32_t L = Buff.readInt())
- Block->addLine(Filename, L);
+ if (!Buff.readInt(Dummy)) return false; // flag
+ while (Buff.getCursor() != (EndPos - 4)) {
+ StringRef F;
+ if (!Buff.readString(F)) return false;
+ if (Filename != F) {
+ errs() << "Multiple sources for a single basic block: " << Filename
+ << " != " << F << " (in " << Name << ").\n";
+ return false;
+ }
+ if (Buff.getCursor() == (EndPos - 4)) break;
+ while (true) {
+ uint32_t Line;
+ if (!Buff.readInt(Line)) return false;
+ if (!Line) break;
+ Block->addLine(Line);
+ }
}
- Buff.readInt(); // flag
+ if (!Buff.readInt(Dummy)) return false; // flag
}
return true;
}
-/// dump - Dump GCOVFunction content on standard out for debugging purposes.
-void GCOVFunction::dump() {
- outs() << "===== " << Name << " @ " << Filename << ":" << LineNumber << "\n";
- for (SmallVectorImpl<GCOVBlock *>::iterator I = Blocks.begin(),
+/// readGCDA - Read a function from the GCDA buffer. Return false if an error
+/// occurs.
+bool GCOVFunction::readGCDA(GCOVBuffer &Buff, GCOV::GCOVVersion Version) {
+ uint32_t Dummy;
+ if (!Buff.readInt(Dummy)) return false; // Function header length
+
+ uint32_t GCDAIdent;
+ if (!Buff.readInt(GCDAIdent)) return false;
+ if (Ident != GCDAIdent) {
+ errs() << "Function identifiers do not match: " << Ident << " != "
+ << GCDAIdent << " (in " << Name << ").\n";
+ return false;
+ }
+
+ uint32_t GCDAChecksum;
+ if (!Buff.readInt(GCDAChecksum)) return false;
+ if (Checksum != GCDAChecksum) {
+ errs() << "Function checksums do not match: " << Checksum << " != "
+ << GCDAChecksum << " (in " << Name << ").\n";
+ return false;
+ }
+
+ uint32_t CfgChecksum;
+ if (Version != GCOV::V402) {
+ if (!Buff.readInt(CfgChecksum)) return false;
+ if (Parent.getChecksum() != CfgChecksum) {
+ errs() << "File checksums do not match: " << Parent.getChecksum()
+ << " != " << CfgChecksum << " (in " << Name << ").\n";
+ return false;
+ }
+ }
+
+ StringRef GCDAName;
+ if (!Buff.readString(GCDAName)) return false;
+ if (Name != GCDAName) {
+ errs() << "Function names do not match: " << Name << " != " << GCDAName
+ << ".\n";
+ return false;
+ }
+
+ if (!Buff.readArcTag()) {
+ errs() << "Arc tag not found (in " << Name << ").\n";
+ return false;
+ }
+
+ uint32_t Count;
+ if (!Buff.readInt(Count)) return false;
+ Count /= 2;
+
+ // This for loop adds the counts for each block. A second nested loop is
+ // required to combine the edge counts that are contained in the GCDA file.
+ for (uint32_t BlockNo = 0; Count > 0; ++BlockNo) {
+ // The last block is always reserved for exit block
+ if (BlockNo >= Blocks.size()-1) {
+ errs() << "Unexpected number of edges (in " << Name << ").\n";
+ return false;
+ }
+ GCOVBlock &Block = *Blocks[BlockNo];
+ for (size_t EdgeNo = 0, End = Block.getNumDstEdges(); EdgeNo < End;
+ ++EdgeNo) {
+ if (Count == 0) {
+ errs() << "Unexpected number of edges (in " << Name << ").\n";
+ return false;
+ }
+ uint64_t ArcCount;
+ if (!Buff.readInt64(ArcCount)) return false;
+ Block.addCount(EdgeNo, ArcCount);
+ --Count;
+ }
+ Block.sortDstEdges();
+ }
+ return true;
+}
+
+/// getEntryCount - Get the number of times the function was called by
+/// retrieving the entry block's count.
+uint64_t GCOVFunction::getEntryCount() const {
+ return Blocks.front()->getCount();
+}
+
+/// getExitCount - Get the number of times the function returned by retrieving
+/// the exit block's count.
+uint64_t GCOVFunction::getExitCount() const {
+ return Blocks.back()->getCount();
+}
+
+/// dump - Dump GCOVFunction content to dbgs() for debugging purposes.
+void GCOVFunction::dump() const {
+ dbgs() << "===== " << Name << " @ " << Filename << ":" << LineNumber << "\n";
+ for (SmallVectorImpl<GCOVBlock *>::const_iterator I = Blocks.begin(),
E = Blocks.end(); I != E; ++I)
(*I)->dump();
}
for (SmallVectorImpl<GCOVBlock *>::iterator I = Blocks.begin(),
E = Blocks.end(); I != E; ++I)
(*I)->collectLineCounts(FI);
+ FI.addFunctionLine(Filename, LineNumber, this);
}
//===----------------------------------------------------------------------===//
/// ~GCOVBlock - Delete GCOVBlock and its content.
GCOVBlock::~GCOVBlock() {
- Edges.clear();
- DeleteContainerSeconds(Lines);
+ SrcEdges.clear();
+ DstEdges.clear();
+ Lines.clear();
+}
+
+/// addCount - Add to block counter while storing the edge count. If the
+/// destination has no outgoing edges, also update that block's count too.
+void GCOVBlock::addCount(size_t DstEdgeNo, uint64_t N) {
+ assert(DstEdgeNo < DstEdges.size()); // up to caller to ensure EdgeNo is valid
+ DstEdges[DstEdgeNo]->Count = N;
+ Counter += N;
+ if (!DstEdges[DstEdgeNo]->Dst->getNumDstEdges())
+ DstEdges[DstEdgeNo]->Dst->Counter += N;
}
-void GCOVBlock::addLine(StringRef Filename, uint32_t LineNo) {
- GCOVLines *&LinesForFile = Lines[Filename];
- if (!LinesForFile)
- LinesForFile = new GCOVLines();
- LinesForFile->add(LineNo);
+/// sortDstEdges - Sort destination edges by block number, nop if already
+/// sorted. This is required for printing branch info in the correct order.
+void GCOVBlock::sortDstEdges() {
+ if (!DstEdgesAreSorted) {
+ SortDstEdgesFunctor SortEdges;
+ std::stable_sort(DstEdges.begin(), DstEdges.end(), SortEdges);
+ }
}
/// collectLineCounts - Collect line counts. This must be used after
/// reading .gcno and .gcda files.
void GCOVBlock::collectLineCounts(FileInfo &FI) {
- for (StringMap<GCOVLines *>::iterator I = Lines.begin(),
+ for (SmallVectorImpl<uint32_t>::iterator I = Lines.begin(),
E = Lines.end(); I != E; ++I)
- I->second->collectLineCounts(FI, I->first(), Counter);
+ FI.addBlockLine(Parent.getFilename(), *I, this);
}
-/// dump - Dump GCOVBlock content on standard out for debugging purposes.
-void GCOVBlock::dump() {
- outs() << "Block : " << Number << " Counter : " << Counter << "\n";
- if (!Edges.empty()) {
- outs() << "\tEdges : ";
- for (SmallVectorImpl<uint32_t>::iterator I = Edges.begin(), E = Edges.end();
- I != E; ++I)
- outs() << (*I) << ",";
- outs() << "\n";
+/// dump - Dump GCOVBlock content to dbgs() for debugging purposes.
+void GCOVBlock::dump() const {
+ dbgs() << "Block : " << Number << " Counter : " << Counter << "\n";
+ if (!SrcEdges.empty()) {
+ dbgs() << "\tSource Edges : ";
+ for (EdgeIterator I = SrcEdges.begin(), E = SrcEdges.end(); I != E; ++I) {
+ const GCOVEdge *Edge = *I;
+ dbgs() << Edge->Src->Number << " (" << Edge->Count << "), ";
+ }
+ dbgs() << "\n";
}
- if (!Lines.empty()) {
- outs() << "\tLines : ";
- for (StringMap<GCOVLines *>::iterator LI = Lines.begin(),
- LE = Lines.end(); LI != LE; ++LI) {
- outs() << LI->first() << " -> ";
- LI->second->dump();
- outs() << "\n";
+ if (!DstEdges.empty()) {
+ dbgs() << "\tDestination Edges : ";
+ for (EdgeIterator I = DstEdges.begin(), E = DstEdges.end(); I != E; ++I) {
+ const GCOVEdge *Edge = *I;
+ dbgs() << Edge->Dst->Number << " (" << Edge->Count << "), ";
}
+ dbgs() << "\n";
+ }
+ if (!Lines.empty()) {
+ dbgs() << "\tLines : ";
+ for (SmallVectorImpl<uint32_t>::const_iterator I = Lines.begin(),
+ E = Lines.end(); I != E; ++I)
+ dbgs() << (*I) << ",";
+ dbgs() << "\n";
}
}
//===----------------------------------------------------------------------===//
-// GCOVLines implementation.
+// FileInfo implementation.
-/// collectLineCounts - Collect line counts. This must be used after
-/// reading .gcno and .gcda files.
-void GCOVLines::collectLineCounts(FileInfo &FI, StringRef Filename,
- uint32_t Count) {
- for (SmallVectorImpl<uint32_t>::iterator I = Lines.begin(),
- E = Lines.end(); I != E; ++I)
- FI.addLineCount(Filename, *I, Count);
+// Safe integer division, returns 0 if numerator is 0.
+static uint32_t safeDiv(uint64_t Numerator, uint64_t Divisor) {
+ if (!Numerator)
+ return 0;
+ return Numerator/Divisor;
}
-/// dump - Dump GCOVLines content on standard out for debugging purposes.
-void GCOVLines::dump() {
- for (SmallVectorImpl<uint32_t>::iterator I = Lines.begin(),
- E = Lines.end(); I != E; ++I)
- outs() << (*I) << ",";
+// This custom division function mimics gcov's branch ouputs:
+// - Round to closest whole number
+// - Only output 0% or 100% if it's exactly that value
+static uint32_t branchDiv(uint64_t Numerator, uint64_t Divisor) {
+ if (!Numerator)
+ return 0;
+ if (Numerator == Divisor)
+ return 100;
+
+ uint8_t Res = (Numerator*100+Divisor/2) / Divisor;
+ if (Res == 0)
+ return 1;
+ if (Res == 100)
+ return 99;
+ return Res;
}
-//===----------------------------------------------------------------------===//
-// FileInfo implementation.
-
-/// addLineCount - Add line count for the given line number in a file.
-void FileInfo::addLineCount(StringRef Filename, uint32_t Line, uint32_t Count) {
- if (LineInfo.find(Filename) == LineInfo.end()) {
+/// print - Print source files with collected line count information.
+void FileInfo::print(StringRef GCNOFile, StringRef GCDAFile) const {
+ for (StringMap<LineData>::const_iterator I = LineInfo.begin(),
+ E = LineInfo.end(); I != E; ++I) {
+ StringRef Filename = I->first();
OwningPtr<MemoryBuffer> Buff;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
errs() << Filename << ": " << ec.message() << "\n";
return;
}
- StringRef AllLines = Buff.take()->getBuffer();
- LineCounts L(AllLines.count('\n')+2);
- L[Line-1] = Count;
- LineInfo[Filename] = L;
- return;
+ StringRef AllLines = Buff->getBuffer();
+
+ std::string CovFilename = Filename.str() + ".gcov";
+ std::string ErrorInfo;
+ raw_fd_ostream OS(CovFilename.c_str(), ErrorInfo);
+ if (!ErrorInfo.empty())
+ errs() << ErrorInfo << "\n";
+
+ OS << " -: 0:Source:" << Filename << "\n";
+ OS << " -: 0:Graph:" << GCNOFile << "\n";
+ OS << " -: 0:Data:" << GCDAFile << "\n";
+ OS << " -: 0:Runs:" << RunCount << "\n";
+ OS << " -: 0:Programs:" << ProgramCount << "\n";
+
+ const LineData &Line = I->second;
+ for (uint32_t LineIndex = 0; !AllLines.empty(); ++LineIndex) {
+ if (Options.BranchProb) {
+ FunctionLines::const_iterator FuncsIt = Line.Functions.find(LineIndex);
+ if (FuncsIt != Line.Functions.end())
+ printFunctionSummary(OS, FuncsIt->second);
+ }
+
+ BlockLines::const_iterator BlocksIt = Line.Blocks.find(LineIndex);
+ if (BlocksIt == Line.Blocks.end()) {
+ // No basic blocks are on this line. Not an executable line of code.
+ OS << " -:";
+ std::pair<StringRef, StringRef> P = AllLines.split('\n');
+ OS << format("%5u:", LineIndex+1) << P.first << "\n";
+ AllLines = P.second;
+ } else {
+ const BlockVector &Blocks = BlocksIt->second;
+
+ // Add up the block counts to form line counts.
+ uint64_t LineCount = 0;
+ for (BlockVector::const_iterator I = Blocks.begin(), E = Blocks.end();
+ I != E; ++I) {
+ const GCOVBlock *Block = *I;
+ if (Options.AllBlocks) {
+ // Only take the highest block count for that line.
+ uint64_t BlockCount = Block->getCount();
+ LineCount = LineCount > BlockCount ? LineCount : BlockCount;
+ } else {
+ // Sum up all of the block counts.
+ LineCount += Block->getCount();
+ }
+ }
+ if (LineCount == 0)
+ OS << " #####:";
+ else
+ OS << format("%9" PRIu64 ":", LineCount);
+
+ std::pair<StringRef, StringRef> P = AllLines.split('\n');
+ OS << format("%5u:", LineIndex+1) << P.first << "\n";
+ AllLines = P.second;
+
+ uint32_t BlockNo = 0;
+ uint32_t EdgeNo = 0;
+ for (BlockVector::const_iterator I = Blocks.begin(), E = Blocks.end();
+ I != E; ++I) {
+ const GCOVBlock *Block = *I;
+
+ // Only print block and branch information at the end of the block.
+ if (Block->getLastLine() != LineIndex+1)
+ continue;
+ if (Options.AllBlocks)
+ printBlockInfo(OS, *Block, LineIndex, BlockNo);
+ if (Options.BranchProb) {
+ size_t NumEdges = Block->getNumDstEdges();
+ if (NumEdges > 1)
+ printBranchInfo(OS, *Block, EdgeNo);
+ else if (Options.UncondBranch && NumEdges == 1)
+ printUncondBranchInfo(OS, EdgeNo, (*Block->dst_begin())->Count);
+ }
+ }
+ }
+ }
}
- LineCounts &L = LineInfo[Filename];
- L[Line-1] = Count;
}
-/// print - Print source files with collected line count information.
-void FileInfo::print() {
- for (StringMap<LineCounts>::iterator I = LineInfo.begin(), E = LineInfo.end();
- I != E; ++I) {
- StringRef Filename = I->first();
- outs() << Filename << "\n";
- LineCounts &L = LineInfo[Filename];
- OwningPtr<MemoryBuffer> Buff;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
- errs() << Filename << ": " << ec.message() << "\n";
- return;
- }
- StringRef AllLines = Buff.take()->getBuffer();
- for (unsigned i = 0, e = L.size(); i != e; ++i) {
- if (L[i])
- outs() << L[i] << ":\t";
- else
- outs() << " :\t";
- std::pair<StringRef, StringRef> P = AllLines.split('\n');
- if (AllLines != P.first)
- outs() << P.first;
- outs() << "\n";
- AllLines = P.second;
+/// printFunctionSummary - Print function and block summary.
+void FileInfo::printFunctionSummary(raw_fd_ostream &OS,
+ const FunctionVector &Funcs) const {
+ for (FunctionVector::const_iterator I = Funcs.begin(), E = Funcs.end();
+ I != E; ++I) {
+ const GCOVFunction *Func = *I;
+ uint64_t EntryCount = Func->getEntryCount();
+ uint32_t BlocksExecuted = 0;
+ for (GCOVFunction::BlockIterator I = Func->block_begin(),
+ E = Func->block_end(); I != E; ++I) {
+ const GCOVBlock *Block = *I;
+ if (Block->getNumDstEdges() && Block->getCount())
+ ++BlocksExecuted;
}
+
+ OS << "function " << Func->getName() << " called " << EntryCount
+ << " returned " << safeDiv(Func->getExitCount()*100, EntryCount)
+ << "% blocks executed "
+ << safeDiv(BlocksExecuted*100, Func->getNumBlocks()-1) << "%\n";
}
}
+/// printBlockInfo - Output counts for each block.
+void FileInfo::printBlockInfo(raw_fd_ostream &OS, const GCOVBlock &Block,
+ uint32_t LineIndex, uint32_t &BlockNo) const {
+ if (Block.getCount() == 0)
+ OS << " $$$$$:";
+ else
+ OS << format("%9" PRIu64 ":", Block.getCount());
+ OS << format("%5u-block %2u\n", LineIndex+1, BlockNo++);
+}
+
+/// printBranchInfo - Print conditional branch probabilities.
+void FileInfo::printBranchInfo(raw_fd_ostream &OS, const GCOVBlock &Block,
+ uint32_t &EdgeNo) const {
+ SmallVector<uint64_t, 16> BranchCounts;
+ uint64_t TotalCounts = 0;
+ for (GCOVBlock::EdgeIterator I = Block.dst_begin(), E = Block.dst_end();
+ I != E; ++I) {
+ const GCOVEdge *Edge = *I;
+ BranchCounts.push_back(Edge->Count);
+ TotalCounts += Edge->Count;
+ }
+ for (SmallVectorImpl<uint64_t>::const_iterator I = BranchCounts.begin(),
+ E = BranchCounts.end(); I != E; ++I) {
+ if (TotalCounts)
+ OS << format("branch %2u taken %u%%\n", EdgeNo++,
+ branchDiv(*I, TotalCounts));
+ else
+ OS << format("branch %2u never executed\n", EdgeNo++);
+ }
+}
+
+/// printUncondBranchInfo - Print unconditional branch probabilities.
+void FileInfo::printUncondBranchInfo(raw_fd_ostream &OS, uint32_t &EdgeNo,
+ uint64_t Count) const {
+ if (Count)
+ OS << format("unconditional %2u taken 100%%\n", EdgeNo++);
+ else
+ OS << format("unconditional %2u never executed\n", EdgeNo++);
+}
projects / oota-llvm.git / blobdiff