[AST] Store the expressions in ParenListExpr in a trailing array

Use the newly available space in the bit-fields of Stmt
and store the expressions in a trailing array. This saves
2 pointer per ParenListExpr.

Differential Revision: https://reviews.llvm.org/D54675

Reviewed By: rjmccall

llvm-svn: 347320

1 files changed, 2 insertions, 2 deletions

diff --git a/clang/lib/Sema/SemaCoroutine.cpp b/clang/lib/Sema/SemaCoroutine.cpp
index 9c9d266d3d8..cc792384709 100644
--- a/clang/lib/Sema/SemaCoroutine.cpp
+++ b/clang/lib/Sema/SemaCoroutine.cpp
@@ -565,8 +565,8 @@ VarDecl *Sema::buildCoroutinePromise(SourceLocation Loc) {
 
   // Create an initialization sequence for the promise type using the
   // constructor arguments, wrapped in a parenthesized list expression.
-  Expr *PLE = new (Context) ParenListExpr(Context, FD->getLocation(),
-                                          CtorArgExprs, FD->getLocation());
+  Expr *PLE = ParenListExpr::Create(Context, FD->getLocation(),
+                                    CtorArgExprs, FD->getLocation());
   InitializedEntity Entity = InitializedEntity::InitializeVariable(VD);
   InitializationKind Kind = InitializationKind::CreateForInit(
       VD->getLocation(), /*DirectInit=*/true, PLE);