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| author | Ted Kremenek <kremenek@apple.com> | 2010-09-16 00:37:05 +0000 |
|---|---|---|
| committer | Ted Kremenek <kremenek@apple.com> | 2010-09-16 00:37:05 +0000 |
| commit | 8eeec5bd033a8ccc1e662b4e0aa3cdb801fccce7 (patch) | |
| tree | 2674dbbe954c8864fdbb8ee96ba1fa3a71e1b475 /clang/lib/Sema/SemaStmt.cpp | |
| parent | 62c454847d8041efd71a233d108508116e98e855 (diff) | |
| download | bcm5719-llvm-8eeec5bd033a8ccc1e662b4e0aa3cdb801fccce7.tar.gz bcm5719-llvm-8eeec5bd033a8ccc1e662b4e0aa3cdb801fccce7.zip | |
Do not warn about empty bodies for 'if' statements if the body is expanded from a macro.
Fixes <rdar://problem/8436021>.
llvm-svn: 114049
Diffstat (limited to 'clang/lib/Sema/SemaStmt.cpp')
| -rw-r--r-- | clang/lib/Sema/SemaStmt.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp index 84dfa1a9999..c9a6da13fbe 100644 --- a/clang/lib/Sema/SemaStmt.cpp +++ b/clang/lib/Sema/SemaStmt.cpp @@ -272,9 +272,12 @@ Sema::ActOnIfStmt(SourceLocation IfLoc, FullExprArg CondVal, Decl *CondVar, // this helps prevent bugs due to typos, such as // if (condition); // do_stuff(); + // + // NOTE: Do not emit this warning if the body is expanded from a macro. if (!elseStmt) { if (NullStmt* stmt = dyn_cast<NullStmt>(thenStmt)) - Diag(stmt->getSemiLoc(), diag::warn_empty_if_body); + if (!stmt->getLocStart().isMacroID()) + Diag(stmt->getSemiLoc(), diag::warn_empty_if_body); } DiagnoseUnusedExprResult(elseStmt); |
