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| author | Jakub Jelinek <jakub@redhat.com> | 2010-10-18 17:55:25 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2010-10-18 17:55:25 +0200 |
| commit | 84628aa83614d863abb3a6c04f14e1b9bdd8d6aa (patch) | |
| tree | 73f1a827aa5c02a91811ff646cbf751b502b7177 /gcc/c-parser.c | |
| parent | 0f8d6231573675f483e50a283ccc20251b377ab4 (diff) | |
| download | gcc-84628aa83614d863abb3a6c04f14e1b9bdd8d6aa.zip gcc-84628aa83614d863abb3a6c04f14e1b9bdd8d6aa.tar.gz gcc-84628aa83614d863abb3a6c04f14e1b9bdd8d6aa.tar.bz2 | |
re PR c/46015 (-Wunused-but-set-variable warns for arrays used in gotos)
PR c/46015
* c-parser.c (c_parser_statement_after_labels): Call mark_exp_read
on computed goto argument.
* semantics.c (finish_goto_stmt): Call mark_rvalue_use on computed
goto destination.
* c-c++-common/Wunused-var-13.c: New test.
From-SVN: r165643
Diffstat (limited to 'gcc/c-parser.c')
| -rw-r--r-- | gcc/c-parser.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/c-parser.c b/gcc/c-parser.c index 8338e9d..bde882c 100644 --- a/gcc/c-parser.c +++ b/gcc/c-parser.c @@ -4151,9 +4151,12 @@ c_parser_statement_after_labels (c_parser *parser) } else if (c_parser_next_token_is (parser, CPP_MULT)) { + tree val; + c_parser_consume_token (parser); - stmt = c_finish_goto_ptr (loc, - c_parser_expression (parser).value); + val = c_parser_expression (parser).value; + mark_exp_read (val); + stmt = c_finish_goto_ptr (loc, val); } else c_parser_error (parser, "expected identifier or %<*%>"); |