Teach __builtin_offsetof to compute the offsets of members of base
classes, since we only warn (not error) on offsetof() for non-POD
types. We store the base path within the OffsetOfExpr itself, then
evaluate the offsets within the constant evaluator.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102571 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHWriterStmt.cpp b/lib/Frontend/PCHWriterStmt.cpp
index 3d158a4..a1993d3 100644
--- a/lib/Frontend/PCHWriterStmt.cpp
+++ b/lib/Frontend/PCHWriterStmt.cpp
@@ -418,6 +418,11 @@
case OffsetOfExpr::OffsetOfNode::Identifier:
Writer.AddIdentifierRef(ON.getFieldName(), Record);
break;
+
+ case OffsetOfExpr::OffsetOfNode::Base:
+ // FIXME: Implement this!
+ llvm_unreachable("PCH for offsetof(base-specifier) not implemented");
+ break;
}
}
for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)