/// printBranchInfo - Print conditional branch probabilities.
void FileInfo::printBranchInfo(raw_ostream &OS, const GCOVBlock &Block,
GCOVCoverage &Coverage, uint32_t &EdgeNo) {
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;
if (Block.getCount()) ++Coverage.BranchesExec;
if (Edge->Count) ++Coverage.BranchesTaken;
++Coverage.Branches;
if (Options.FuncCoverage) {
const GCOVFunction *Function = &Block.getParent();
GCOVCoverage &FuncCoverage = FuncCoverages.find(Function)->second;
if (Block.getCount()) ++FuncCoverage.BranchesExec;
if (Edge->Count) ++FuncCoverage.BranchesTaken;
++FuncCoverage.Branches;
}
}
for (SmallVectorImpl<uint64_t>::const_iterator I = BranchCounts.begin(),
E = BranchCounts.end(); I != E; ++I) {
OS << format("branch %2u ", EdgeNo++)
<< formatBranchInfo(Options, *I, TotalCounts) << "\n";
}
}
/// printBranchInfo - Print conditional branch probabilities.
void FileInfo::printBranchInfo(raw_ostream &OS, const GCOVBlock &Block,
GCOVCoverage &Coverage, uint32_t &EdgeNo) {
SmallVector<uint64_t, 16> BranchCounts;
uint64_t TotalCounts = 0;
for (const GCOVEdge *Edge : Block.dsts()) {
BranchCounts.push_back(Edge->Count);
TotalCounts += Edge->Count;
if (Block.getCount())
++Coverage.BranchesExec;
if (Edge->Count)
++Coverage.BranchesTaken;
++Coverage.Branches;
if (Options.FuncCoverage) {
const GCOVFunction *Function = &Block.getParent();
GCOVCoverage &FuncCoverage = FuncCoverages.find(Function)->second;
if (Block.getCount())
++FuncCoverage.BranchesExec;
if (Edge->Count)
++FuncCoverage.BranchesTaken;
++FuncCoverage.Branches;
}
}
for (uint64_t N : BranchCounts)
OS << format("branch %2u ", EdgeNo++)
<< formatBranchInfo(Options, N, TotalCounts) << "\n";
}
/// printBlockInfo - Output counts for each block.
void FileInfo::printBlockInfo(raw_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++);
}
/// 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;
}
}
if (!Buff.readString(Name)) return false;
if (!Buff.readString(Filename)) return false;
if (!Buff.readInt(LineNumber)) return false;
// read blocks.
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;
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 (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;
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 (in " << Name << ").\n";
return false;
}
GCOVBlock *Block = Blocks[BlockNo];
if (!Buff.readInt(Dummy)) return false; // flag
while (Buff.getCursor() != (EndPos - 4)) {
StringRef F;
if (!Buff.readString(F)) return false;
if (F != Filename) {
errs() << "Multiple sources for a single basic block (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);
}
}
if (!Buff.readInt(Dummy)) return false; // flag
}
return true;
}
/// 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)
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());
}
return true;
}
LineNumber = Buff.readInt();
// 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));
}
// 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
}
}
// 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!");
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);
}
Buff.readInt(); // flag
}
return true;
}
