[codeview] Remove ClassInfoMap

From a design perspective, complete record type emission should not
depend on information from other complete record types.

Currently this map is unused, and needlessly accumulates data throughout
compilation.

llvm-svn: 273431

1 files changed, 1 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h
index 98499b934af..be8d6cea024 100644
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h
@@ -150,8 +150,6 @@ class LLVM_LIBRARY_VISIBILITY CodeViewDebug : public DebugHandlerBase {
   /// always looked up in the normal TypeIndices map.
   DenseMap<const DICompositeType *, codeview::TypeIndex> CompleteTypeIndices;
 
-  /// Map from DICompositeType* to class info.
-  DenseMap<const DICompositeType *, std::unique_ptr<ClassInfo>> ClassInfoMap;
   const DISubprogram *CurrentSubprogram = nullptr;
 
   // The UDTs we have seen while processing types; each entry is a pair of type
@@ -249,7 +247,7 @@ class LLVM_LIBRARY_VISIBILITY CodeViewDebug : public DebugHandlerBase {
   codeview::TypeIndex lowerCompleteTypeUnion(const DICompositeType *Ty);
 
   void collectMemberInfo(ClassInfo &Info, const DIDerivedType *DDTy);
-  ClassInfo &collectClassInfo(const DICompositeType *Ty);
+  ClassInfo collectClassInfo(const DICompositeType *Ty);
 
   /// Common record member lowering functionality for record types, which are
   /// structs, classes, and unions. Returns the field list index and the member