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-rw-r--r--lib/IR/GCOV.cpp96
1 files changed, 81 insertions, 15 deletions
diff --git a/lib/IR/GCOV.cpp b/lib/IR/GCOV.cpp
index b33eee6692..140d259c2a 100644
--- a/lib/IR/GCOV.cpp
+++ b/lib/IR/GCOV.cpp
@@ -430,7 +430,7 @@ static raw_ostream &operator<<(raw_ostream &OS, const formatBranchInfo &FBI) {
}
/// print - Print source files with collected line count information.
-void FileInfo::print(StringRef GCNOFile, StringRef GCDAFile) const {
+void FileInfo::print(StringRef GCNOFile, StringRef GCDAFile) {
for (StringMap<LineData>::const_iterator I = LineInfo.begin(),
E = LineInfo.end(); I != E; ++I) {
StringRef Filename = I->first();
@@ -454,7 +454,7 @@ void FileInfo::print(StringRef GCNOFile, StringRef GCDAFile) const {
OS << " -: 0:Programs:" << ProgramCount << "\n";
const LineData &Line = I->second;
- GCOVCoverage Coverage;
+ GCOVCoverage FileCoverage(Filename);
for (uint32_t LineIndex = 0; !AllLines.empty(); ++LineIndex) {
if (Options.BranchInfo) {
FunctionLines::const_iterator FuncsIt = Line.Functions.find(LineIndex);
@@ -473,6 +473,7 @@ void FileInfo::print(StringRef GCNOFile, StringRef GCDAFile) const {
const BlockVector &Blocks = BlocksIt->second;
// Add up the block counts to form line counts.
+ DenseMap<const GCOVFunction *, bool> LineExecs;
uint64_t LineCount = 0;
for (BlockVector::const_iterator I = Blocks.begin(), E = Blocks.end();
I != E; ++I) {
@@ -485,15 +486,49 @@ void FileInfo::print(StringRef GCNOFile, StringRef GCDAFile) const {
// Sum up all of the block counts.
LineCount += Block->getCount();
}
+
+ if (Options.FuncCoverage) {
+ // This is a slightly convoluted way to most accurately gather line
+ // statistics for functions. Basically what is happening is that we
+ // don't want to count a single line with multiple blocks more than
+ // once. However, we also don't simply want to give the total line
+ // count to every function that starts on the line. Thus, what is
+ // happening here are two things:
+ // 1) Ensure that the number of logical lines is only incremented
+ // once per function.
+ // 2) If there are multiple blocks on the same line, ensure that the
+ // number of lines executed is incremented as long as at least
+ // one of the blocks are executed.
+ const GCOVFunction *Function = &Block->getParent();
+ if (FuncCoverages.find(Function) == FuncCoverages.end()) {
+ std::pair<const GCOVFunction *, GCOVCoverage>
+ KeyValue(Function, GCOVCoverage(Function->getName()));
+ FuncCoverages.insert(KeyValue);
+ }
+ GCOVCoverage &FuncCoverage = FuncCoverages.find(Function)->second;
+
+ if (LineExecs.find(Function) == LineExecs.end()) {
+ if (Block->getCount()) {
+ ++FuncCoverage.LinesExec;
+ LineExecs[Function] = true;
+ } else {
+ LineExecs[Function] = false;
+ }
+ ++FuncCoverage.LogicalLines;
+ } else if (!LineExecs[Function] && Block->getCount()) {
+ ++FuncCoverage.LinesExec;
+ LineExecs[Function] = true;
+ }
+ }
}
if (LineCount == 0)
OS << " #####:";
else {
OS << format("%9" PRIu64 ":", LineCount);
- ++Coverage.LinesExec;
+ ++FileCoverage.LinesExec;
}
- ++Coverage.LogicalLines;
+ ++FileCoverage.LogicalLines;
std::pair<StringRef, StringRef> P = AllLines.split('\n');
OS << format("%5u:", LineIndex+1) << P.first << "\n";
@@ -513,17 +548,20 @@ void FileInfo::print(StringRef GCNOFile, StringRef GCDAFile) const {
if (Options.BranchInfo) {
size_t NumEdges = Block->getNumDstEdges();
if (NumEdges > 1)
- printBranchInfo(OS, *Block, Coverage, EdgeNo);
+ printBranchInfo(OS, *Block, FileCoverage, EdgeNo);
else if (Options.UncondBranch && NumEdges == 1)
printUncondBranchInfo(OS, EdgeNo, (*Block->dst_begin())->Count);
}
}
}
}
-
- // FIXME: There is no way to detect calls given current instrumentation.
- printFileCoverage(Filename, Coverage);
+ FileCoverages.push_back(FileCoverage);
}
+
+ // FIXME: There is no way to detect calls given current instrumentation.
+ if (Options.FuncCoverage)
+ printFuncCoverage();
+ printFileCoverage();
}
/// printFunctionSummary - Print function and block summary.
@@ -560,7 +598,7 @@ void FileInfo::printBlockInfo(raw_fd_ostream &OS, const GCOVBlock &Block,
/// printBranchInfo - Print conditional branch probabilities.
void FileInfo::printBranchInfo(raw_fd_ostream &OS, const GCOVBlock &Block,
- GCOVCoverage &Coverage, uint32_t &EdgeNo) const {
+ 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();
@@ -571,6 +609,14 @@ void FileInfo::printBranchInfo(raw_fd_ostream &OS, const GCOVBlock &Block,
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(),
@@ -587,10 +633,9 @@ void FileInfo::printUncondBranchInfo(raw_fd_ostream &OS, uint32_t &EdgeNo,
<< formatBranchInfo(Options, Count, Count) << "\n";
}
-/// printFileCoverage - Print per-file coverage info.
-void FileInfo::printFileCoverage(StringRef Filename,
- GCOVCoverage &Coverage) const {
- outs() << "File '" << Filename << "'\n";
+// printCoverage - Print generic coverage info used by both printFuncCoverage
+// and printFileCoverage.
+void FileInfo::printCoverage(const GCOVCoverage &Coverage) const {
outs() << format("Lines executed:%.2lf%% of %u\n",
double(Coverage.LinesExec)*100/Coverage.LogicalLines,
Coverage.LogicalLines);
@@ -607,6 +652,27 @@ void FileInfo::printFileCoverage(StringRef Filename,
}
outs() << "No calls\n"; // to be consistent with gcov
}
- outs() << Filename << ":creating '" << Filename << ".gcov'\n";
- outs() << "\n";
+}
+
+// printFuncCoverage - Print per-function coverage info.
+void FileInfo::printFuncCoverage() const {
+ for (MapVector<const GCOVFunction *, GCOVCoverage>::const_iterator I =
+ FuncCoverages.begin(), E = FuncCoverages.end(); I != E; ++I) {
+ const GCOVCoverage &Coverage = I->second;
+ outs() << "Function '" << Coverage.Name << "'\n";
+ printCoverage(Coverage);
+ outs() << "\n";
+ }
+}
+
+// printFileCoverage - Print per-file coverage info.
+void FileInfo::printFileCoverage() const {
+ for (SmallVectorImpl<GCOVCoverage>::const_iterator I =
+ FileCoverages.begin(), E = FileCoverages.end(); I != E; ++I) {
+ const GCOVCoverage &Coverage = *I;
+ outs() << "File '" << Coverage.Name << "'\n";
+ printCoverage(Coverage);
+ outs() << Coverage.Name << ":creating '" << Coverage.Name
+ << ".gcov'\n\n";
+ }
}
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