Save a copy expression for non-trivial copy constructions of catch variables.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125661 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 884a184b52..209e5d3260 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -2751,6 +2751,15 @@ ParenListExpr::ParenListExpr(ASTContext& C, SourceLocation lparenloc,
   }
 }
 
+const OpaqueValueExpr *OpaqueValueExpr::findInCopyConstruct(const Expr *e) {
+  if (const ExprWithCleanups *ewc = dyn_cast<ExprWithCleanups>(e))
+    e = ewc->getSubExpr();
+  e = cast<CXXConstructExpr>(e)->getArg(0);
+  while (const ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e))
+    e = ice->getSubExpr();
+  return cast<OpaqueValueExpr>(e);
+}
+
 //===----------------------------------------------------------------------===//
 //  ExprIterator.
 //===----------------------------------------------------------------------===//