1 files changed, 10 insertions, 0 deletions
diff --git a/clang/lib/Serialization/ASTWriterStmt.cpp b/clang/lib/Serialization/ASTWriterStmt.cpp
index bd715461cb9..20a6b7d74ce 100644
--- a/clang/lib/Serialization/ASTWriterStmt.cpp
+++ b/clang/lib/Serialization/ASTWriterStmt.cpp
@@ -432,6 +432,16 @@ void ASTStmtWriter::VisitExpr(Expr *E) {
 
 void ASTStmtWriter::VisitConstantExpr(ConstantExpr *E) {
   VisitExpr(E);
+  Record.push_back(static_cast<uint64_t>(E->ConstantExprBits.ResultKind));
+  switch (E->ConstantExprBits.ResultKind) {
+  case ConstantExpr::RSK_Int64:
+    Record.push_back(E->Int64Result());
+    Record.push_back(E->ConstantExprBits.IsUnsigned |
+                     E->ConstantExprBits.BitWidth << 1);
+    break;
+  case ConstantExpr::RSK_APValue:
+    Record.AddAPValue(E->APValueResult());
+  }
   Record.AddStmt(E->getSubExpr());
   Code = serialization::EXPR_CONSTANT;
 }