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[llvm-cov] don't include all source files when provided source files are filtered out

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When all provided source files are filtered out either due to `--ignore-filename-regex` or not part of binary, don't generate coverage reults for all source files. Because if users want to generate coverage results for all source files, they don't even need to provid selected source files or `--ignore-filename-regex`.

Differential Revision: https://reviews.llvm.org/D89359
This commit is contained in:
Zequan Wu 2020-10-13 18:40:45 -07:00
parent cce078ae12
commit 1bb71afff1
3 changed files with 21 additions and 3 deletions
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12
test/tools/llvm-cov/sources-specified.test
View File

@ -10,6 +10,18 @@ RUN: %S/Inputs/sources_specified/main.covmapping \
RUN: %S/Inputs/sources_specified/main.cc %S/Inputs/sources_specified/extra \
RUN: | FileCheck -check-prefix=SHOW %s
# Don't include all source files when provided source files are filtered out.
RUN: llvm-cov show -instr-profile %S/Inputs/sources_specified/main.profdata \
RUN: -path-equivalence=/tmp,%S/Inputs \
RUN: %S/Inputs/sources_specified/main.covmapping \
RUN: --ignore-filename-regex='.*' \
RUN: %S/Inputs/sources_specified/main.cc %S/Inputs/sources_specified/extra \
RUN: | FileCheck -allow-empty -check-prefix=IGNORE %s
IGNORE-NOT: {{.*}}main.cc{{.*}}
IGNORE-NOT: {{.*}}inc.h{{.*}}
IGNORE-NOT: {{.*}}dec.h{{.*}}
# Order of files may differ, check the total values calculated.
REPORT-NOT: {{.*}}abs.h{{.*}}
REPORT: {{^}}TOTAL 3{{.*}}72.73%

4
test/tools/llvm-cov/universal_bin_wrapping_archives.test
View File

@ -17,11 +17,11 @@ REQUIRES: zlib
RUN: llvm-profdata merge %S/Inputs/universal_bin_wrapping_archives/universal_bin_wrapping_archives.proftext -o %t.profdata
RUN: llvm-cov show %S/Inputs/universal_bin_wrapping_archives/universal_bin_wrapping_archives \
RUN: -instr-profile %t.profdata -path-equivalence=/tmp,%S/Inputs/universal_bin_wrapping_archives %s -arch i386 \
RUN: -instr-profile %t.profdata -path-equivalence=/tmp,%S/Inputs/universal_bin_wrapping_archives -arch i386 \
RUN: | FileCheck %s --check-prefix=SHOW_ARCHIVE
RUN: llvm-cov show %S/Inputs/universal_bin_wrapping_archives/universal_bin_wrapping_archives \
RUN: -instr-profile %t.profdata -path-equivalence=/tmp,%S/Inputs/universal_bin_wrapping_archives %s -arch x86_64 \
RUN: -instr-profile %t.profdata -path-equivalence=/tmp,%S/Inputs/universal_bin_wrapping_archives -arch x86_64 \
RUN: | FileCheck %s --check-prefix=SHOW_ARCHIVE
SHOW_ARCHIVE: {{.*}}obj1.c:

8
tools/llvm-cov/CodeCoverage.cpp
View File

@ -130,6 +130,9 @@ private:
CoverageFiltersMatchAll Filters;
CoverageFilters IgnoreFilenameFilters;
/// True if InputSourceFiles are provided.
bool HadSourceFiles = false;
/// The path to the indexed profile.
std::string PGOFilename;
@ -194,6 +197,7 @@ void CodeCoverageTool::addCollectedPath(const std::string &Path) {
sys::path::remove_dots(EffectivePath, /*remove_dot_dots=*/true);
if (!IgnoreFilenameFilters.matchesFilename(EffectivePath))
SourceFiles.emplace_back(EffectivePath.str());
HadSourceFiles = !SourceFiles.empty();
}
void CodeCoverageTool::collectPaths(const std::string &Path) {
@ -397,6 +401,7 @@ void CodeCoverageTool::remapPathNames(const CoverageMapping &Coverage) {
sys::path::native(Path, NativePath);
if (!sys::path::is_separator(NativePath.back()))
NativePath += sys::path::get_separator();
sys::path::remove_dots(NativePath, true);
return NativePath.c_str();
};
std::string RemapFrom = nativeWithTrailing(PathRemapping->first);
@ -406,6 +411,7 @@ void CodeCoverageTool::remapPathNames(const CoverageMapping &Coverage) {
for (StringRef Filename : Coverage.getUniqueSourceFiles()) {
SmallString<128> NativeFilename;
sys::path::native(Filename, NativeFilename);
sys::path::remove_dots(NativeFilename, true);
if (NativeFilename.startswith(RemapFrom)) {
RemappedFilenames[Filename] =
RemapTo + NativeFilename.substr(RemapFrom.size()).str();
@ -895,7 +901,7 @@ int CodeCoverageTool::doShow(int argc, const char **argv,
auto Printer = CoveragePrinter::create(ViewOpts);
if (SourceFiles.empty())
if (SourceFiles.empty() && !HadSourceFiles)
// Get the source files from the function coverage mapping.
for (StringRef Filename : Coverage->getUniqueSourceFiles()) {
if (!IgnoreFilenameFilters.matchesFilename(Filename))