diff options
Diffstat (limited to 'llvm/lib/Bitcode/Reader/MetadataLoader.cpp')
| -rw-r--r-- | llvm/lib/Bitcode/Reader/MetadataLoader.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp index 374e315..0931192 100644 --- a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp +++ b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp @@ -1354,13 +1354,20 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( return error("Invalid record"); IsDistinct = Record[0]; + Optional<DIFile::ChecksumInfo<MDString *>> Checksum; + // The BitcodeWriter writes null bytes into Record[3:4] when the Checksum + // is not present. This matches up with the old internal representation, + // and the old encoding for CSK_None in the ChecksumKind. The new + // representation reserves the value 0 in the ChecksumKind to continue to + // encode None in a backwards-compatible way. + if (Record.size() == 5 && Record[3] && Record[4]) + Checksum.emplace(static_cast<DIFile::ChecksumKind>(Record[3]), + getMDString(Record[4])); MetadataList.assignValue( GET_OR_DISTINCT( DIFile, (Context, getMDString(Record[1]), getMDString(Record[2]), - Record.size() == 3 ? DIFile::CSK_None - : static_cast<DIFile::ChecksumKind>(Record[3]), - Record.size() == 3 ? nullptr : getMDString(Record[4]))), + Checksum)), NextMetadataNo); NextMetadataNo++; break; |