llvm-cov: Allow creating CoverageMappings from filenames
llvm-svn: 218185
diff --git a/llvm/lib/ProfileData/CoverageMapping.cpp b/llvm/lib/ProfileData/CoverageMapping.cpp
index 2e205f3..540e643 100644
--- a/llvm/lib/ProfileData/CoverageMapping.cpp
+++ b/llvm/lib/ProfileData/CoverageMapping.cpp
@@ -183,6 +183,20 @@
return std::move(Coverage);
}
+ErrorOr<std::unique_ptr<CoverageMapping>>
+CoverageMapping::load(StringRef ObjectFilename, StringRef ProfileFilename) {
+ auto CounterMappingBuff = MemoryBuffer::getFileOrSTDIN(ObjectFilename);
+ if (auto EC = CounterMappingBuff.getError())
+ return EC;
+ ObjectFileCoverageMappingReader CoverageReader(CounterMappingBuff.get());
+ if (auto EC = CoverageReader.readHeader())
+ return EC;
+ std::unique_ptr<IndexedInstrProfReader> ProfileReader;
+ if (auto EC = IndexedInstrProfReader::create(ProfileFilename, ProfileReader))
+ return EC;
+ return load(CoverageReader, *ProfileReader);
+}
+
namespace {
/// \brief Distributes functions into instantiation sets.
///