diff options
Diffstat (limited to 'lib/Sema/SemaChecking.cpp')
| -rw-r--r-- | lib/Sema/SemaChecking.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp index 589b0c6bd0ec..38b6ebeefab9 100644 --- a/lib/Sema/SemaChecking.cpp +++ b/lib/Sema/SemaChecking.cpp @@ -1272,10 +1272,15 @@ Sema::CheckReturnStackAddr(Expr *RetValExp, QualType lhsType, // Skip over implicit cast expressions when checking for block expressions. RetValExp = RetValExp->IgnoreParenCasts(); - if (BlockExpr *C = dyn_cast_or_null<BlockExpr>(RetValExp)) + if (BlockExpr *C = dyn_cast<BlockExpr>(RetValExp)) if (C->hasBlockDeclRefExprs()) Diag(C->getLocStart(), diag::err_ret_local_block) << C->getSourceRange(); + + if (AddrLabelExpr *ALE = dyn_cast<AddrLabelExpr>(RetValExp)) + Diag(ALE->getLocStart(), diag::warn_ret_addr_label) + << ALE->getSourceRange(); + } else if (lhsType->isReferenceType()) { // Perform checking for stack values returned by reference. // Check for a reference to the stack @@ -1420,8 +1425,7 @@ static DeclRefExpr* EvalVal(Expr *E) { // viewed AST node. We then recursively traverse the AST by calling // EvalAddr and EvalVal appropriately. switch (E->getStmtClass()) { - case Stmt::DeclRefExprClass: - case Stmt::QualifiedDeclRefExprClass: { + case Stmt::DeclRefExprClass: { // DeclRefExpr: the base case. When we hit a DeclRefExpr we are looking // at code that refers to a variable's name. We check if it has local // storage within the function, and if so, return the expression. |