1 //===- GCOV.cpp - LLVM coverage tool --------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // GCOV implements the interface to read and write coverage files that use
13 //===----------------------------------------------------------------------===//
15 #include "llvm/Support/GCOV.h"
16 #include "llvm/ADT/STLExtras.h"
17 #include "llvm/Support/Debug.h"
18 #include "llvm/Support/FileSystem.h"
19 #include "llvm/Support/Format.h"
20 #include "llvm/Support/MemoryObject.h"
21 #include "llvm/Support/Path.h"
23 #include <system_error>
26 //===----------------------------------------------------------------------===//
27 // GCOVFile implementation.
29 /// readGCNO - Read GCNO buffer.
30 bool GCOVFile::readGCNO(GCOVBuffer &Buffer) {
31 if (!Buffer.readGCNOFormat())
33 if (!Buffer.readGCOVVersion(Version))
36 if (!Buffer.readInt(Checksum))
39 if (!Buffer.readFunctionTag())
41 auto GFun = make_unique<GCOVFunction>(*this);
42 if (!GFun->readGCNO(Buffer, Version))
44 Functions.push_back(std::move(GFun));
47 GCNOInitialized = true;
51 /// readGCDA - Read GCDA buffer. It is required that readGCDA() can only be
52 /// called after readGCNO().
53 bool GCOVFile::readGCDA(GCOVBuffer &Buffer) {
54 assert(GCNOInitialized && "readGCDA() can only be called after readGCNO()");
55 if (!Buffer.readGCDAFormat())
57 GCOV::GCOVVersion GCDAVersion;
58 if (!Buffer.readGCOVVersion(GCDAVersion))
60 if (Version != GCDAVersion) {
61 errs() << "GCOV versions do not match.\n";
65 uint32_t GCDAChecksum;
66 if (!Buffer.readInt(GCDAChecksum))
68 if (Checksum != GCDAChecksum) {
69 errs() << "File checksums do not match: " << Checksum
70 << " != " << GCDAChecksum << ".\n";
73 for (size_t i = 0, e = Functions.size(); i < e; ++i) {
74 if (!Buffer.readFunctionTag()) {
75 errs() << "Unexpected number of functions.\n";
78 if (!Functions[i]->readGCDA(Buffer, Version))
81 if (Buffer.readObjectTag()) {
84 if (!Buffer.readInt(Length))
86 if (!Buffer.readInt(Dummy))
87 return false; // checksum
88 if (!Buffer.readInt(Dummy))
90 if (!Buffer.readInt(RunCount))
92 Buffer.advanceCursor(Length - 3);
94 while (Buffer.readProgramTag()) {
96 if (!Buffer.readInt(Length))
98 Buffer.advanceCursor(Length);
105 /// dump - Dump GCOVFile content to dbgs() for debugging purposes.
106 void GCOVFile::dump() const {
107 for (const auto &FPtr : Functions)
111 /// collectLineCounts - Collect line counts. This must be used after
112 /// reading .gcno and .gcda files.
113 void GCOVFile::collectLineCounts(FileInfo &FI) {
114 for (const auto &FPtr : Functions)
115 FPtr->collectLineCounts(FI);
116 FI.setRunCount(RunCount);
117 FI.setProgramCount(ProgramCount);
120 //===----------------------------------------------------------------------===//
121 // GCOVFunction implementation.
123 /// readGCNO - Read a function from the GCNO buffer. Return false if an error
125 bool GCOVFunction::readGCNO(GCOVBuffer &Buff, GCOV::GCOVVersion Version) {
127 if (!Buff.readInt(Dummy))
128 return false; // Function header length
129 if (!Buff.readInt(Ident))
131 if (!Buff.readInt(Checksum))
133 if (Version != GCOV::V402) {
134 uint32_t CfgChecksum;
135 if (!Buff.readInt(CfgChecksum))
137 if (Parent.getChecksum() != CfgChecksum) {
138 errs() << "File checksums do not match: " << Parent.getChecksum()
139 << " != " << CfgChecksum << " in (" << Name << ").\n";
143 if (!Buff.readString(Name))
145 if (!Buff.readString(Filename))
147 if (!Buff.readInt(LineNumber))
151 if (!Buff.readBlockTag()) {
152 errs() << "Block tag not found.\n";
156 if (!Buff.readInt(BlockCount))
158 for (uint32_t i = 0, e = BlockCount; i != e; ++i) {
159 if (!Buff.readInt(Dummy))
160 return false; // Block flags;
161 Blocks.push_back(make_unique<GCOVBlock>(*this, i));
165 while (Buff.readEdgeTag()) {
167 if (!Buff.readInt(EdgeCount))
169 EdgeCount = (EdgeCount - 1) / 2;
171 if (!Buff.readInt(BlockNo))
173 if (BlockNo >= BlockCount) {
174 errs() << "Unexpected block number: " << BlockNo << " (in " << Name
178 for (uint32_t i = 0, e = EdgeCount; i != e; ++i) {
180 if (!Buff.readInt(Dst))
182 Edges.push_back(make_unique<GCOVEdge>(*Blocks[BlockNo], *Blocks[Dst]));
183 GCOVEdge *Edge = Edges.back().get();
184 Blocks[BlockNo]->addDstEdge(Edge);
185 Blocks[Dst]->addSrcEdge(Edge);
186 if (!Buff.readInt(Dummy))
187 return false; // Edge flag
192 while (Buff.readLineTag()) {
193 uint32_t LineTableLength;
194 // Read the length of this line table.
195 if (!Buff.readInt(LineTableLength))
197 uint32_t EndPos = Buff.getCursor() + LineTableLength * 4;
199 // Read the block number this table is associated with.
200 if (!Buff.readInt(BlockNo))
202 if (BlockNo >= BlockCount) {
203 errs() << "Unexpected block number: " << BlockNo << " (in " << Name
207 GCOVBlock &Block = *Blocks[BlockNo];
208 // Read the word that pads the beginning of the line table. This may be a
209 // flag of some sort, but seems to always be zero.
210 if (!Buff.readInt(Dummy))
213 // Line information starts here and continues up until the last word.
214 if (Buff.getCursor() != (EndPos - sizeof(uint32_t))) {
216 // Read the source file name.
217 if (!Buff.readString(F))
220 errs() << "Multiple sources for a single basic block: " << Filename
221 << " != " << F << " (in " << Name << ").\n";
224 // Read lines up to, but not including, the null terminator.
225 while (Buff.getCursor() < (EndPos - 2 * sizeof(uint32_t))) {
227 if (!Buff.readInt(Line))
229 // Line 0 means this instruction was injected by the compiler. Skip it.
234 // Read the null terminator.
235 if (!Buff.readInt(Dummy))
238 // The last word is either a flag or padding, it isn't clear which. Skip
240 if (!Buff.readInt(Dummy))
246 /// readGCDA - Read a function from the GCDA buffer. Return false if an error
248 bool GCOVFunction::readGCDA(GCOVBuffer &Buff, GCOV::GCOVVersion Version) {
250 if (!Buff.readInt(Dummy))
251 return false; // Function header length
254 if (!Buff.readInt(GCDAIdent))
256 if (Ident != GCDAIdent) {
257 errs() << "Function identifiers do not match: " << Ident
258 << " != " << GCDAIdent << " (in " << Name << ").\n";
262 uint32_t GCDAChecksum;
263 if (!Buff.readInt(GCDAChecksum))
265 if (Checksum != GCDAChecksum) {
266 errs() << "Function checksums do not match: " << Checksum
267 << " != " << GCDAChecksum << " (in " << Name << ").\n";
271 uint32_t CfgChecksum;
272 if (Version != GCOV::V402) {
273 if (!Buff.readInt(CfgChecksum))
275 if (Parent.getChecksum() != CfgChecksum) {
276 errs() << "File checksums do not match: " << Parent.getChecksum()
277 << " != " << CfgChecksum << " (in " << Name << ").\n";
283 if (!Buff.readString(GCDAName))
285 if (Name != GCDAName) {
286 errs() << "Function names do not match: " << Name << " != " << GCDAName
291 if (!Buff.readArcTag()) {
292 errs() << "Arc tag not found (in " << Name << ").\n";
297 if (!Buff.readInt(Count))
301 // This for loop adds the counts for each block. A second nested loop is
302 // required to combine the edge counts that are contained in the GCDA file.
303 for (uint32_t BlockNo = 0; Count > 0; ++BlockNo) {
304 // The last block is always reserved for exit block
305 if (BlockNo >= Blocks.size() - 1) {
306 errs() << "Unexpected number of edges (in " << Name << ").\n";
309 GCOVBlock &Block = *Blocks[BlockNo];
310 for (size_t EdgeNo = 0, End = Block.getNumDstEdges(); EdgeNo < End;
313 errs() << "Unexpected number of edges (in " << Name << ").\n";
317 if (!Buff.readInt64(ArcCount))
319 Block.addCount(EdgeNo, ArcCount);
322 Block.sortDstEdges();
327 /// getEntryCount - Get the number of times the function was called by
328 /// retrieving the entry block's count.
329 uint64_t GCOVFunction::getEntryCount() const {
330 return Blocks.front()->getCount();
333 /// getExitCount - Get the number of times the function returned by retrieving
334 /// the exit block's count.
335 uint64_t GCOVFunction::getExitCount() const {
336 return Blocks.back()->getCount();
339 /// dump - Dump GCOVFunction content to dbgs() for debugging purposes.
340 void GCOVFunction::dump() const {
341 dbgs() << "===== " << Name << " (" << Ident << ") @ " << Filename << ":"
342 << LineNumber << "\n";
343 for (const auto &Block : Blocks)
347 /// collectLineCounts - Collect line counts. This must be used after
348 /// reading .gcno and .gcda files.
349 void GCOVFunction::collectLineCounts(FileInfo &FI) {
350 // If the line number is zero, this is a function that doesn't actually appear
351 // in the source file, so there isn't anything we can do with it.
355 for (const auto &Block : Blocks)
356 Block->collectLineCounts(FI);
357 FI.addFunctionLine(Filename, LineNumber, this);
360 //===----------------------------------------------------------------------===//
361 // GCOVBlock implementation.
363 /// ~GCOVBlock - Delete GCOVBlock and its content.
364 GCOVBlock::~GCOVBlock() {
370 /// addCount - Add to block counter while storing the edge count. If the
371 /// destination has no outgoing edges, also update that block's count too.
372 void GCOVBlock::addCount(size_t DstEdgeNo, uint64_t N) {
373 assert(DstEdgeNo < DstEdges.size()); // up to caller to ensure EdgeNo is valid
374 DstEdges[DstEdgeNo]->Count = N;
376 if (!DstEdges[DstEdgeNo]->Dst.getNumDstEdges())
377 DstEdges[DstEdgeNo]->Dst.Counter += N;
380 /// sortDstEdges - Sort destination edges by block number, nop if already
381 /// sorted. This is required for printing branch info in the correct order.
382 void GCOVBlock::sortDstEdges() {
383 if (!DstEdgesAreSorted) {
384 SortDstEdgesFunctor SortEdges;
385 std::stable_sort(DstEdges.begin(), DstEdges.end(), SortEdges);
389 /// collectLineCounts - Collect line counts. This must be used after
390 /// reading .gcno and .gcda files.
391 void GCOVBlock::collectLineCounts(FileInfo &FI) {
392 for (uint32_t N : Lines)
393 FI.addBlockLine(Parent.getFilename(), N, this);
396 /// dump - Dump GCOVBlock content to dbgs() for debugging purposes.
397 void GCOVBlock::dump() const {
398 dbgs() << "Block : " << Number << " Counter : " << Counter << "\n";
399 if (!SrcEdges.empty()) {
400 dbgs() << "\tSource Edges : ";
401 for (const GCOVEdge *Edge : SrcEdges)
402 dbgs() << Edge->Src.Number << " (" << Edge->Count << "), ";
405 if (!DstEdges.empty()) {
406 dbgs() << "\tDestination Edges : ";
407 for (const GCOVEdge *Edge : DstEdges)
408 dbgs() << Edge->Dst.Number << " (" << Edge->Count << "), ";
411 if (!Lines.empty()) {
412 dbgs() << "\tLines : ";
413 for (uint32_t N : Lines)
414 dbgs() << (N) << ",";
419 //===----------------------------------------------------------------------===//
420 // FileInfo implementation.
422 // Safe integer division, returns 0 if numerator is 0.
423 static uint32_t safeDiv(uint64_t Numerator, uint64_t Divisor) {
426 return Numerator / Divisor;
429 // This custom division function mimics gcov's branch ouputs:
430 // - Round to closest whole number
431 // - Only output 0% or 100% if it's exactly that value
432 static uint32_t branchDiv(uint64_t Numerator, uint64_t Divisor) {
435 if (Numerator == Divisor)
438 uint8_t Res = (Numerator * 100 + Divisor / 2) / Divisor;
446 struct formatBranchInfo {
447 formatBranchInfo(const GCOVOptions &Options, uint64_t Count, uint64_t Total)
448 : Options(Options), Count(Count), Total(Total) {}
450 void print(raw_ostream &OS) const {
452 OS << "never executed";
453 else if (Options.BranchCount)
454 OS << "taken " << Count;
456 OS << "taken " << branchDiv(Count, Total) << "%";
459 const GCOVOptions &Options;
464 static raw_ostream &operator<<(raw_ostream &OS, const formatBranchInfo &FBI) {
471 std::unique_ptr<MemoryBuffer> Buffer;
475 LineConsumer(StringRef Filename) {
476 ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
477 MemoryBuffer::getFileOrSTDIN(Filename);
478 if (std::error_code EC = BufferOrErr.getError()) {
479 errs() << Filename << ": " << EC.message() << "\n";
482 Buffer = std::move(BufferOrErr.get());
483 Remaining = Buffer->getBuffer();
486 bool empty() { return Remaining.empty(); }
487 void printNext(raw_ostream &OS, uint32_t LineNum) {
492 std::tie(Line, Remaining) = Remaining.split("\n");
493 OS << format("%5u:", LineNum) << Line << "\n";
498 /// Convert a path to a gcov filename. If PreservePaths is true, this
499 /// translates "/" to "#", ".." to "^", and drops ".", to match gcov.
500 static std::string mangleCoveragePath(StringRef Filename, bool PreservePaths) {
502 return sys::path::filename(Filename).str();
504 // This behaviour is defined by gcov in terms of text replacements, so it's
505 // not likely to do anything useful on filesystems with different textual
507 llvm::SmallString<256> Result("");
508 StringRef::iterator I, S, E;
509 for (I = S = Filename.begin(), E = Filename.end(); I != E; ++I) {
513 if (I - S == 1 && *S == '.') {
514 // ".", the current directory, is skipped.
515 } else if (I - S == 2 && *S == '.' && *(S + 1) == '.') {
516 // "..", the parent directory, is replaced with "^".
520 // Leave other components intact,
522 // And separate with "#".
523 Result.push_back('#');
533 std::string FileInfo::getCoveragePath(StringRef Filename,
534 StringRef MainFilename) {
535 if (Options.NoOutput)
536 // This is probably a bug in gcov, but when -n is specified, paths aren't
537 // mangled at all, and the -l and -p options are ignored. Here, we do the
541 std::string CoveragePath;
542 if (Options.LongFileNames && !Filename.equals(MainFilename))
544 mangleCoveragePath(MainFilename, Options.PreservePaths) + "##";
545 CoveragePath += mangleCoveragePath(Filename, Options.PreservePaths) + ".gcov";
549 std::unique_ptr<raw_ostream>
550 FileInfo::openCoveragePath(StringRef CoveragePath) {
551 if (Options.NoOutput)
552 return llvm::make_unique<raw_null_ostream>();
555 auto OS = llvm::make_unique<raw_fd_ostream>(CoveragePath.str(), EC,
558 errs() << EC.message() << "\n";
559 return llvm::make_unique<raw_null_ostream>();
561 return std::move(OS);
564 /// print - Print source files with collected line count information.
565 void FileInfo::print(raw_ostream &InfoOS, StringRef MainFilename,
566 StringRef GCNOFile, StringRef GCDAFile) {
567 for (const auto &LI : LineInfo) {
568 StringRef Filename = LI.first();
569 auto AllLines = LineConsumer(Filename);
571 std::string CoveragePath = getCoveragePath(Filename, MainFilename);
572 std::unique_ptr<raw_ostream> CovStream = openCoveragePath(CoveragePath);
573 raw_ostream &CovOS = *CovStream;
575 CovOS << " -: 0:Source:" << Filename << "\n";
576 CovOS << " -: 0:Graph:" << GCNOFile << "\n";
577 CovOS << " -: 0:Data:" << GCDAFile << "\n";
578 CovOS << " -: 0:Runs:" << RunCount << "\n";
579 CovOS << " -: 0:Programs:" << ProgramCount << "\n";
581 const LineData &Line = LI.second;
582 GCOVCoverage FileCoverage(Filename);
583 for (uint32_t LineIndex = 0; LineIndex < Line.LastLine || !AllLines.empty();
585 if (Options.BranchInfo) {
586 FunctionLines::const_iterator FuncsIt = Line.Functions.find(LineIndex);
587 if (FuncsIt != Line.Functions.end())
588 printFunctionSummary(CovOS, FuncsIt->second);
591 BlockLines::const_iterator BlocksIt = Line.Blocks.find(LineIndex);
592 if (BlocksIt == Line.Blocks.end()) {
593 // No basic blocks are on this line. Not an executable line of code.
595 AllLines.printNext(CovOS, LineIndex + 1);
597 const BlockVector &Blocks = BlocksIt->second;
599 // Add up the block counts to form line counts.
600 DenseMap<const GCOVFunction *, bool> LineExecs;
601 uint64_t LineCount = 0;
602 for (const GCOVBlock *Block : Blocks) {
603 if (Options.AllBlocks) {
604 // Only take the highest block count for that line.
605 uint64_t BlockCount = Block->getCount();
606 LineCount = LineCount > BlockCount ? LineCount : BlockCount;
608 // Sum up all of the block counts.
609 LineCount += Block->getCount();
612 if (Options.FuncCoverage) {
613 // This is a slightly convoluted way to most accurately gather line
614 // statistics for functions. Basically what is happening is that we
615 // don't want to count a single line with multiple blocks more than
616 // once. However, we also don't simply want to give the total line
617 // count to every function that starts on the line. Thus, what is
618 // happening here are two things:
619 // 1) Ensure that the number of logical lines is only incremented
620 // once per function.
621 // 2) If there are multiple blocks on the same line, ensure that the
622 // number of lines executed is incremented as long as at least
623 // one of the blocks are executed.
624 const GCOVFunction *Function = &Block->getParent();
625 if (FuncCoverages.find(Function) == FuncCoverages.end()) {
626 std::pair<const GCOVFunction *, GCOVCoverage> KeyValue(
627 Function, GCOVCoverage(Function->getName()));
628 FuncCoverages.insert(KeyValue);
630 GCOVCoverage &FuncCoverage = FuncCoverages.find(Function)->second;
632 if (LineExecs.find(Function) == LineExecs.end()) {
633 if (Block->getCount()) {
634 ++FuncCoverage.LinesExec;
635 LineExecs[Function] = true;
637 LineExecs[Function] = false;
639 ++FuncCoverage.LogicalLines;
640 } else if (!LineExecs[Function] && Block->getCount()) {
641 ++FuncCoverage.LinesExec;
642 LineExecs[Function] = true;
650 CovOS << format("%9" PRIu64 ":", LineCount);
651 ++FileCoverage.LinesExec;
653 ++FileCoverage.LogicalLines;
655 AllLines.printNext(CovOS, LineIndex + 1);
657 uint32_t BlockNo = 0;
659 for (const GCOVBlock *Block : Blocks) {
660 // Only print block and branch information at the end of the block.
661 if (Block->getLastLine() != LineIndex + 1)
663 if (Options.AllBlocks)
664 printBlockInfo(CovOS, *Block, LineIndex, BlockNo);
665 if (Options.BranchInfo) {
666 size_t NumEdges = Block->getNumDstEdges();
668 printBranchInfo(CovOS, *Block, FileCoverage, EdgeNo);
669 else if (Options.UncondBranch && NumEdges == 1)
670 printUncondBranchInfo(CovOS, EdgeNo,
671 (*Block->dst_begin())->Count);
676 FileCoverages.push_back(std::make_pair(CoveragePath, FileCoverage));
679 // FIXME: There is no way to detect calls given current instrumentation.
680 if (Options.FuncCoverage)
681 printFuncCoverage(InfoOS);
682 printFileCoverage(InfoOS);
686 /// printFunctionSummary - Print function and block summary.
687 void FileInfo::printFunctionSummary(raw_ostream &OS,
688 const FunctionVector &Funcs) const {
689 for (const GCOVFunction *Func : Funcs) {
690 uint64_t EntryCount = Func->getEntryCount();
691 uint32_t BlocksExec = 0;
692 for (const GCOVBlock &Block : Func->blocks())
693 if (Block.getNumDstEdges() && Block.getCount())
696 OS << "function " << Func->getName() << " called " << EntryCount
697 << " returned " << safeDiv(Func->getExitCount() * 100, EntryCount)
698 << "% blocks executed "
699 << safeDiv(BlocksExec * 100, Func->getNumBlocks() - 1) << "%\n";
703 /// printBlockInfo - Output counts for each block.
704 void FileInfo::printBlockInfo(raw_ostream &OS, const GCOVBlock &Block,
705 uint32_t LineIndex, uint32_t &BlockNo) const {
706 if (Block.getCount() == 0)
709 OS << format("%9" PRIu64 ":", Block.getCount());
710 OS << format("%5u-block %2u\n", LineIndex + 1, BlockNo++);
713 /// printBranchInfo - Print conditional branch probabilities.
714 void FileInfo::printBranchInfo(raw_ostream &OS, const GCOVBlock &Block,
715 GCOVCoverage &Coverage, uint32_t &EdgeNo) {
716 SmallVector<uint64_t, 16> BranchCounts;
717 uint64_t TotalCounts = 0;
718 for (const GCOVEdge *Edge : Block.dsts()) {
719 BranchCounts.push_back(Edge->Count);
720 TotalCounts += Edge->Count;
721 if (Block.getCount())
722 ++Coverage.BranchesExec;
724 ++Coverage.BranchesTaken;
727 if (Options.FuncCoverage) {
728 const GCOVFunction *Function = &Block.getParent();
729 GCOVCoverage &FuncCoverage = FuncCoverages.find(Function)->second;
730 if (Block.getCount())
731 ++FuncCoverage.BranchesExec;
733 ++FuncCoverage.BranchesTaken;
734 ++FuncCoverage.Branches;
738 for (uint64_t N : BranchCounts)
739 OS << format("branch %2u ", EdgeNo++)
740 << formatBranchInfo(Options, N, TotalCounts) << "\n";
743 /// printUncondBranchInfo - Print unconditional branch probabilities.
744 void FileInfo::printUncondBranchInfo(raw_ostream &OS, uint32_t &EdgeNo,
745 uint64_t Count) const {
746 OS << format("unconditional %2u ", EdgeNo++)
747 << formatBranchInfo(Options, Count, Count) << "\n";
750 // printCoverage - Print generic coverage info used by both printFuncCoverage
751 // and printFileCoverage.
752 void FileInfo::printCoverage(raw_ostream &OS,
753 const GCOVCoverage &Coverage) const {
754 OS << format("Lines executed:%.2f%% of %u\n",
755 double(Coverage.LinesExec) * 100 / Coverage.LogicalLines,
756 Coverage.LogicalLines);
757 if (Options.BranchInfo) {
758 if (Coverage.Branches) {
759 OS << format("Branches executed:%.2f%% of %u\n",
760 double(Coverage.BranchesExec) * 100 / Coverage.Branches,
762 OS << format("Taken at least once:%.2f%% of %u\n",
763 double(Coverage.BranchesTaken) * 100 / Coverage.Branches,
766 OS << "No branches\n";
768 OS << "No calls\n"; // to be consistent with gcov
772 // printFuncCoverage - Print per-function coverage info.
773 void FileInfo::printFuncCoverage(raw_ostream &OS) const {
774 for (const auto &FC : FuncCoverages) {
775 const GCOVCoverage &Coverage = FC.second;
776 OS << "Function '" << Coverage.Name << "'\n";
777 printCoverage(OS, Coverage);
782 // printFileCoverage - Print per-file coverage info.
783 void FileInfo::printFileCoverage(raw_ostream &OS) const {
784 for (const auto &FC : FileCoverages) {
785 const std::string &Filename = FC.first;
786 const GCOVCoverage &Coverage = FC.second;
787 OS << "File '" << Coverage.Name << "'\n";
788 printCoverage(OS, Coverage);
789 if (!Options.NoOutput)
790 OS << Coverage.Name << ":creating '" << Filename << "'\n";