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| author | jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-09 01:16:16 +0000 |
|---|---|---|
| committer | jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-09 01:16:16 +0000 |
| commit | 9823d3a9a666d8459764265abd3b04ead5c3def1 (patch) | |
| tree | cafc9cbafbe798461e115c710492d5167b17d34a /gcc/toplev.c | |
| parent | 196bfa93bdbc9ac2c3e3f5104b6774bbbce7c150 (diff) | |
| download | gcc-9823d3a9a666d8459764265abd3b04ead5c3def1.tar.gz | |
* c-tree.h (C_DECL_USED, parser_obstack, in_alignof, in_sizeof,
in_typeof, record_maybe_used_decl, pop_maybe_used,
c_expr_sizeof_expr, c_expr_sizeof_type): New.
* c-decl.c (parser_obstack): New.
(c_init_decl_processing): Initialize parser_obstack.
(c_write_global_declarations_1): Check for used but undefined
static functions.
* c-parse.in (%union): Add otype.
(save_obstack_position): New.
(extdefs): Use it.
(unary_expr): Update in_sizeof and in_alignof. Use
c_expr_sizeof_expr and c_expr_sizeof_type.
(sizeof): Update in_sizeof.
(alignof): Update in_alignof.
(typeof): Update in_typeof.
(typespec_nonreserved_nonattr): Call pop_maybe_used.
* c-typeck.c (in_alignof, in_sizeof, in_typeof, struct
maybe_used_decl, maybe_used_decls, record_maybe_used_decl,
pop_maybe_used, c_expr_sizeof_expr, c_expr_sizeof_type): New.
(build_external_ref): Set C_DECL_USED or call
record_maybe_used_decl if appropriate.
* toplev.c (check_global_declarations): Check TREE_NO_WARNING.
testsuite:
* gcc.dg/c90-static-1.c, gcc.dg/c99-static-1.c,
gcc.dg/gnu99-static-1.c: New tests.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87216 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/toplev.c')
| -rw-r--r-- | gcc/toplev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/toplev.c b/gcc/toplev.c index eb4a0c69027..d83d6c5fe90 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -840,6 +840,7 @@ check_global_declarations (tree *vec, int len) && DECL_INITIAL (decl) == 0 && DECL_EXTERNAL (decl) && ! DECL_ARTIFICIAL (decl) + && ! TREE_NO_WARNING (decl) && ! TREE_PUBLIC (decl) && (warn_unused_function || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))) |