llvm-6502/tools/llvm-cov/CoverageSummary.cpp
Justin Bogner 9eb38163a5 llvm-cov: Disentangle the coverage data logic from the display (NFC)
This splits the logic for actually looking up coverage information
from the logic that displays it. These were tangled rather thoroughly
so this change is a bit large, but it mostly consists of moving things
around. The coverage lookup logic itself now lives in the library,
rather than being spread between the library and the tool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218184 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-20 15:31:56 +00:00

93 lines
3.3 KiB
C++

//===- CoverageSummary.cpp - Code coverage summary ------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This class implements data management and rendering for the code coverage
// summaries of all files and functions.
//
//===----------------------------------------------------------------------===//
#include "CoverageSummary.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
using namespace llvm;
unsigned CoverageSummary::getFileID(StringRef Filename) {
for (unsigned I = 0, E = Filenames.size(); I < E; ++I) {
if (sys::fs::equivalent(Filenames[I], Filename))
return I;
}
Filenames.push_back(Filename);
return Filenames.size() - 1;
}
void
CoverageSummary::createSummaries(ArrayRef<coverage::FunctionRecord> Functions) {
std::vector<std::pair<unsigned, size_t>> FunctionFileIDs;
FunctionFileIDs.resize(Functions.size());
for (size_t I = 0, E = Functions.size(); I < E; ++I) {
StringRef Filename = Functions[I].Filenames[0];
FunctionFileIDs[I] = std::make_pair(getFileID(Filename), I);
}
// Sort the function records by file ids
std::sort(FunctionFileIDs.begin(), FunctionFileIDs.end(),
[](const std::pair<unsigned, size_t> &lhs,
const std::pair<unsigned, size_t> &rhs) {
return lhs.first < rhs.first;
});
// Create function summaries in a sorted order (by file ids)
FunctionSummaries.reserve(Functions.size());
for (size_t I = 0, E = Functions.size(); I < E; ++I)
FunctionSummaries.push_back(
FunctionCoverageSummary::get(Functions[FunctionFileIDs[I].second]));
// Create file summaries
size_t CurrentSummary = 0;
for (unsigned FileID = 0; FileID < Filenames.size(); ++FileID) {
// Gather the relevant functions summaries
auto PrevSummary = CurrentSummary;
while (CurrentSummary < FunctionSummaries.size() &&
FunctionFileIDs[CurrentSummary].first == FileID)
++CurrentSummary;
ArrayRef<FunctionCoverageSummary> LocalSummaries(
FunctionSummaries.data() + PrevSummary,
FunctionSummaries.data() + CurrentSummary);
if (LocalSummaries.empty())
continue;
FileSummaries.push_back(
FileCoverageSummary::get(Filenames[FileID], LocalSummaries));
}
}
FileCoverageSummary CoverageSummary::getCombinedFileSummaries() {
size_t NumRegions = 0, CoveredRegions = 0;
size_t NumLines = 0, NonCodeLines = 0, CoveredLines = 0;
size_t NumFunctionsCovered = 0, NumFunctions = 0;
for (const auto &File : FileSummaries) {
NumRegions += File.RegionCoverage.NumRegions;
CoveredRegions += File.RegionCoverage.Covered;
NumLines += File.LineCoverage.NumLines;
NonCodeLines += File.LineCoverage.NonCodeLines;
CoveredLines += File.LineCoverage.Covered;
NumFunctionsCovered += File.FunctionCoverage.FullyCovered;
NumFunctions += File.FunctionCoverage.NumFunctions;
}
return FileCoverageSummary(
"TOTAL", RegionCoverageInfo(CoveredRegions, NumRegions),
LineCoverageInfo(CoveredLines, NonCodeLines, NumLines),
FunctionCoverageInfo(NumFunctionsCovered, NumFunctions),
None);
}