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| author | Argyrios Kyrtzidis <akyrtzi@gmail.com> | 2010-09-19 21:21:10 +0000 |
|---|---|---|
| committer | Argyrios Kyrtzidis <akyrtzi@gmail.com> | 2010-09-19 21:21:10 +0000 |
| commit | 90963413104034cd883c93e08f7b30949429b169 (patch) | |
| tree | 044e423c1ecd45cc94b91f1b887c344fdc715e89 /clang/lib/Sema/SemaStmt.cpp | |
| parent | 7b8d2ae9129a68dfb058f209f2fec4db032639cf (diff) | |
| download | bcm5719-llvm-90963413104034cd883c93e08f7b30949429b169.tar.gz bcm5719-llvm-90963413104034cd883c93e08f7b30949429b169.zip | |
Warn when an expression result in a LabelStmt is unused.
llvm-svn: 114314
Diffstat (limited to 'clang/lib/Sema/SemaStmt.cpp')
| -rw-r--r-- | clang/lib/Sema/SemaStmt.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp index 8ec12a460db..47ea4f2c253 100644 --- a/clang/lib/Sema/SemaStmt.cpp +++ b/clang/lib/Sema/SemaStmt.cpp @@ -67,6 +67,9 @@ void Sema::ActOnForEachDeclStmt(DeclGroupPtrTy dg) { } void Sema::DiagnoseUnusedExprResult(const Stmt *S) { + if (const LabelStmt *Label = dyn_cast_or_null<LabelStmt>(S)) + return DiagnoseUnusedExprResult(Label->getSubStmt()); + const Expr *E = dyn_cast_or_null<Expr>(S); if (!E) return; |
