diff options
Diffstat (limited to 'llvm/lib/Bitcode/Reader/MetadataLoader.cpp')
| -rw-r--r-- | llvm/lib/Bitcode/Reader/MetadataLoader.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp index 8493eb7..a2ad4a4 100644 --- a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp +++ b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp @@ -555,7 +555,7 @@ class MetadataLoader::MetadataLoaderImpl { } /// Upgrade the expression from previous versions. - Error upgradeDIExpression(uint64_t FromVersion, + Error upgradeDIExpression(uint64_t FromVersion, bool &IsDistinct, MutableArrayRef<uint64_t> &Expr, SmallVectorImpl<uint64_t> &Buffer) { auto N = Expr.size(); @@ -629,6 +629,9 @@ class MetadataLoader::MetadataLoaderImpl { LLVM_FALLTHROUGH; } case 3: + IsDistinct = false; + LLVM_FALLTHROUGH; + case 4: // Up-to-date! break; } @@ -1981,9 +1984,12 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( auto Elts = MutableArrayRef<uint64_t>(Record).slice(1); SmallVector<uint64_t, 6> Buffer; - if (Error Err = upgradeDIExpression(Version, Elts, Buffer)) + if (Error Err = upgradeDIExpression(Version, IsDistinct, Elts, Buffer)) return Err; + if (IsDistinct) + return error("Invalid record"); + MetadataList.assignValue( GET_OR_DISTINCT(DIExpression, (Context, Elts)), NextMetadataNo); NextMetadataNo++; |