diff options
Diffstat (limited to 'clang')
-rw-r--r-- | clang/lib/Sema/Sema.cpp | 7 | ||||
-rw-r--r-- | clang/test/Sema/no-warn-unused-const-variables.c | 4 |
2 files changed, 9 insertions, 2 deletions
diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp index 2a3be84263c..c2622ecab4b 100644 --- a/clang/lib/Sema/Sema.cpp +++ b/clang/lib/Sema/Sema.cpp @@ -865,8 +865,11 @@ void Sema::ActOnEndOfTranslationUnit() { Diag(DiagD->getLocation(), diag::warn_unneeded_internal_decl) << /*variable*/1 << DiagD->getDeclName(); } else if (DiagD->getType().isConstQualified()) { - Diag(DiagD->getLocation(), diag::warn_unused_const_variable) - << DiagD->getDeclName(); + const SourceManager &SM = SourceMgr; + if (SM.getMainFileID() != SM.getFileID(DiagD->getLocation()) || + !PP.getLangOpts().IsHeaderFile) + Diag(DiagD->getLocation(), diag::warn_unused_const_variable) + << DiagD->getDeclName(); } else { Diag(DiagD->getLocation(), diag::warn_unused_variable) << DiagD->getDeclName(); diff --git a/clang/test/Sema/no-warn-unused-const-variables.c b/clang/test/Sema/no-warn-unused-const-variables.c new file mode 100644 index 00000000000..73cfd8ea71b --- /dev/null +++ b/clang/test/Sema/no-warn-unused-const-variables.c @@ -0,0 +1,4 @@ +// RUN: %clang_cc1 -fsyntax-only -Wunused-const-variable -x c-header -ffreestanding -verify %s +// RUN: %clang_cc1 -fsyntax-only -Wunused-const-variable -x c++-header -ffreestanding -verify %s +// expected-no-diagnostics +static const int unused[] = { 2, 3, 5, 7, 11, 13 }; |