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| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-04-03 22:39:51 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-04-03 22:39:51 +0000 |
| commit | 8d58a5a7900f5543f186d868d265d75be0f09cdc (patch) | |
| tree | fd1d1d700f54be42454fcc88e95011014edff3f4 /gcc/langhooks.h | |
| parent | d1f6c8f2a0903dd9e0f7e63a40afb5073829dca3 (diff) | |
| download | gcc-8d58a5a7900f5543f186d868d265d75be0f09cdc.tar.gz | |
PR opt/4330
* langhooks.h (lang_hooks.decls.warn_unused_global): New.
* toplev.c (check_global_declarations): Use it.
* langhooks-def.h (lhd_warn_unused_global_decl): Declare.
(LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL): New.
(LANG_HOOKS_DECLS): Add it.
* langhooks.c (lhd_warn_unused_global_decl): New.
* c-decl.c (LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL): New.
* c-objc-common.c (c_warn_unused_global_decl): New.
* c-tree.h (c_warn_unused_global_decl): Declare.
* objc/objc-lang.c (LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL): New.
* cp-lang.c (cxx_warn_unused_global_decl): New.
(LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL): New.
* g++.dg/warn/Wunused-2.C: New.
* gcc.dg/unused-4.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@51818 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/langhooks.h')
| -rw-r--r-- | gcc/langhooks.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/langhooks.h b/gcc/langhooks.h index 299efcd8a92..83e2e5abdb9 100644 --- a/gcc/langhooks.h +++ b/gcc/langhooks.h @@ -133,6 +133,10 @@ struct lang_hooks_for_decls /* Returns the chain of decls so far in the current scope level. */ tree (*getdecls) PARAMS ((void)); + + /* Returns true when we should warn for an unused global DECL. + We will already have checked that it has static binding. */ + bool (*warn_unused_global) PARAMS ((tree)); }; /* Language-specific hooks. See langhooks-def.h for defaults. */ |