Actually compute the empty subobject sizes. No functionality change yet.

llvm-svn: 103363

1 files changed, 5 insertions, 1 deletions

diff --git a/clang/lib/AST/RecordLayoutBuilder.h b/clang/lib/AST/RecordLayoutBuilder.h
index acbee9e1dc6..f3da315ead8 100644
--- a/clang/lib/AST/RecordLayoutBuilder.h
+++ b/clang/lib/AST/RecordLayoutBuilder.h
@@ -77,7 +77,7 @@ class ASTRecordLayoutBuilder {
   /// VisitedVirtualBases - A set of all the visited virtual bases, used to
   /// avoid visiting virtual bases more than once.
   llvm::SmallPtrSet<const CXXRecordDecl *, 4> VisitedVirtualBases;
-  
+
   /// SizeOfLargestEmptySubobject - When laying out C++ classes, this holds the
   /// size of the largest empty subobject (either a base or a member).
   /// Will be zero if the record being built doesn't contain any empty classes.
@@ -99,6 +99,10 @@ class ASTRecordLayoutBuilder {
   void LayoutWideBitField(uint64_t FieldSize, uint64_t TypeSize);
   void LayoutBitField(const FieldDecl *D);
 
+  /// ComputeEmptySubobjectSizes - Compute the size of the largest base or 
+  /// member subobject that is empty.
+  void ComputeEmptySubobjectSizes(const CXXRecordDecl *RD);
+
   /// DeterminePrimaryBase - Determine the primary base of the given class.
   void DeterminePrimaryBase(const CXXRecordDecl *RD);