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authordodji <dodji@138bc75d-0d04-0410-961f-82ee72b054a4>2011-09-08 13:54:24 +0000
committerdodji <dodji@138bc75d-0d04-0410-961f-82ee72b054a4>2011-09-08 13:54:24 +0000
commita4e3ffad557b50fa23cea760752d7322827884fd (patch)
tree27754af02dd2eee09863de910cfb346079141257 /gcc/c-family/c.opt
parent9c7fd334c69b641e49789e83618f614d52133cba (diff)
downloadgcc-a4e3ffad557b50fa23cea760752d7322827884fd.tar.gz
PR c++/33255 - Support -Wunused-local-typedefs warning
gcc/ * c-decl.c (lookup_name): Use the new maybe_record_typedef_use. (pushdecl): Use the new record_locally_defined_typedef. (store_parm_decls): Allocate cfun->language. (finish_function): Use the new maybe_warn_unused_local_typedefs, and free cfun->language. (c_push_function_context): Allocate cfun->language here only if needed. (c_pop_function_context): Likewise, mark cfun->language for collection only when it should be done. * c-common.c (handle_used_attribute): Don't ignore TYPE_DECL nodes. * c-typeck.c (c_expr_sizeof_type, c_cast_expr): Use the new maybe_record_local_typedef_use. gcc/c-family * c-common.h (struct c_language_function::local_typedefs): New field. (record_locally_defined_typedef, maybe_record_typedef_use) (maybe_warn_unused_local_typedefs): Declare new functions. * c-common.c (record_locally_defined_typedef) (maybe_record_typedef_use) (maybe_warn_unused_local_typedefs): Define new functions. * c.opt: Declare new -Wunused-local-typedefs flag. gcc/cp * name-lookup.c (pushdecl_maybe_friend_1): Use the new record_locally_defined_typedef. * decl.c (finish_function): Use the new maybe_warn_unused_local_typedefs. (grokfield): Use the new record_locally_defined_typedef. * parser.c (lookup_name): Use the new maybe_record_typedef_use. gcc/doc/ * invoke.texi: Update documentation for -Wunused-local-typedefs. gcc/testsuite/ * g++.dg/warn/Wunused-local-typedefs.C: New test file. * c-c++-common/Wunused-local-typedefs.c: Likewise. libstdc++-v3/ * include/ext/bitmap_allocator.h (__detail::__mini_vector::__lower_bound): Remove unused typedef. * src/istream.cc (std::operator>>(basic_istream<char>& __in, basic_string<char>& __str)): Likewise. (std::getline): Likewise. * src/valarray.cc (__valarray_product): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@178692 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-family/c.opt')
-rw-r--r--gcc/c-family/c.opt4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
index 617ea2d8905..e6ac5dca2ef 100644
--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
@@ -653,6 +653,10 @@ Wunsuffixed-float-constants
C ObjC Var(warn_unsuffixed_float_constants) Warning
Warn about unsuffixed float constants
+Wunused-local-typedefs
+C ObjC C++ ObjC++ Var(warn_unused_local_typedefs) Warning
+Warn about
+
Wunused-macros
C ObjC C++ ObjC++ Warning
Warn about macros defined in the main file that are not used