Read and write NamedMDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77517 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 1e6f5b6..35fe7b2 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -734,6 +734,33 @@
switch (Stream.ReadRecord(Code, Record)) {
default: // Default behavior: ignore.
break;
+ case bitc::METADATA_NAME: {
+ // Read named of the named metadata.
+ unsigned NameLength = Record.size();
+ SmallString<8> Name;
+ Name.resize(NameLength);
+ for (unsigned i = 0; i != NameLength; ++i)
+ Name[i] = Record[i];
+ Record.clear();
+ Code = Stream.ReadCode();
+
+ // METADATA_NAME is always followed by METADATA_NAMED_NODE.
+ if (Stream.ReadRecord(Code, Record) != bitc::METADATA_NAMED_NODE)
+ assert ( 0 && "Inavlid Named Metadata record");
+
+ // Read named metadata elements.
+ unsigned Size = Record.size();
+ SmallVector<MetadataBase*, 8> Elts;
+ for (unsigned i = 0; i != Size; ++i) {
+ Value *MD = ValueList.getValueFwdRef(Record[i], Type::MetadataTy);
+ if (MetadataBase *B = dyn_cast<MetadataBase>(MD))
+ Elts.push_back(B);
+ }
+ Value *V = NamedMDNode::Create(Name.c_str(), Elts.data(), Elts.size(),
+ TheModule);
+ ValueList.AssignValue(V, NextValueNo++);
+ break;
+ }
case bitc::METADATA_NODE: {
if (Record.empty() || Record.size() % 2 == 1)
return Error("Invalid METADATA_NODE record");