diff options
Diffstat (limited to 'llvm/lib/Bitcode/Reader/MetadataLoader.cpp')
| -rw-r--r-- | llvm/lib/Bitcode/Reader/MetadataLoader.cpp | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp index 770eb83..bdc2db8 100644 --- a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp +++ b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp @@ -1556,7 +1556,7 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( break; } case bitc::METADATA_DERIVED_TYPE: { - if (Record.size() < 12 || Record.size() > 14) + if (Record.size() < 12 || Record.size() > 15) return error("Invalid record"); // DWARF address space is encoded as N->getDWARFAddressSpace() + 1. 0 means @@ -1566,8 +1566,18 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( DWARFAddressSpace = Record[12] - 1; Metadata *Annotations = nullptr; - if (Record.size() > 13 && Record[13]) - Annotations = getMDOrNull(Record[13]); + std::optional<DIDerivedType::PtrAuthData> PtrAuthData; + + // Only look for annotations/ptrauth if both are allocated. + // If not, we can't tell which was intended to be embedded, as both ptrauth + // and annotations have been expected at Record[13] at various times. + if (Record.size() > 14) { + if (Record[13]) + Annotations = getMDOrNull(Record[13]); + + if (Record[14]) + PtrAuthData = DIDerivedType::PtrAuthData(Record[14]); + } IsDistinct = Record[0]; DINode::DIFlags Flags = static_cast<DINode::DIFlags>(Record[10]); @@ -1577,7 +1587,7 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( getMDOrNull(Record[3]), Record[4], getDITypeRefOrNull(Record[5]), getDITypeRefOrNull(Record[6]), Record[7], Record[8], - Record[9], DWARFAddressSpace, Flags, + Record[9], DWARFAddressSpace, PtrAuthData, Flags, getDITypeRefOrNull(Record[11]), Annotations)), NextMetadataNo); NextMetadataNo++; |