diff options
Diffstat (limited to 'clang/lib/Sema/SemaStmt.cpp')
| -rw-r--r-- | clang/lib/Sema/SemaStmt.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp index 50479a9b816..fa42634a347 100644 --- a/clang/lib/Sema/SemaStmt.cpp +++ b/clang/lib/Sema/SemaStmt.cpp @@ -93,6 +93,15 @@ void Sema::DiagnoseUnusedExprResult(const Stmt *S) { if (isa<ObjCImplicitSetterGetterRefExpr>(E)) DiagID = diag::warn_unused_property_expr; + if (const CXXExprWithTemporaries *Temps = dyn_cast<CXXExprWithTemporaries>(E)) + E = Temps->getSubExpr(); + if (const CXXZeroInitValueExpr *Zero = dyn_cast<CXXZeroInitValueExpr>(E)) { + if (const RecordType *RecordT = Zero->getType()->getAs<RecordType>()) + if (CXXRecordDecl *RecordD = dyn_cast<CXXRecordDecl>(RecordT->getDecl())) + if (!RecordD->hasTrivialDestructor()) + return; + } + if (const CallExpr *CE = dyn_cast<CallExpr>(E)) { // If the callee has attribute pure, const, or warn_unused_result, warn with // a more specific message to make it clear what is happening. |
