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* [Bug tree-optimization/18828] New: [4.0 Regression] Extraneous warning with var_start and optimization
@ 2004-12-04 13:47 pinskia at gcc dot gnu dot org
2004-12-04 13:47 ` [Bug tree-optimization/18828] " pinskia at gcc dot gnu dot org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-12-04 13:47 UTC (permalink / raw)
To: gcc-bugs
typedef __builtin_va_list __gnuc_va_list;
typedef __gnuc_va_list va_list;
extern void abort (void);
void foo (int size, ...)
{
va_list ap;
if (size != 21)
abort ();
__builtin_va_start(ap,size);
__builtin_va_end(ap);
}
I found this while fixing another bug.
--
Summary: [4.0 Regression] Extraneous warning with var_start and
optimization
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pinskia at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18828
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug tree-optimization/18828] [4.0 Regression] Extraneous warning with var_start and optimization 2004-12-04 13:47 [Bug tree-optimization/18828] New: [4.0 Regression] Extraneous warning with var_start and optimization pinskia at gcc dot gnu dot org @ 2004-12-04 13:47 ` pinskia at gcc dot gnu dot org 2004-12-05 16:51 ` pinskia at gcc dot gnu dot org ` (5 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-12-04 13:47 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-04 13:47 ------- va-arg-22.c:10: warning: second parameter of 'va_start' not last named argument -- What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |4.0.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18828 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/18828] [4.0 Regression] Extraneous warning with var_start and optimization 2004-12-04 13:47 [Bug tree-optimization/18828] New: [4.0 Regression] Extraneous warning with var_start and optimization pinskia at gcc dot gnu dot org 2004-12-04 13:47 ` [Bug tree-optimization/18828] " pinskia at gcc dot gnu dot org @ 2004-12-05 16:51 ` pinskia at gcc dot gnu dot org 2004-12-20 13:56 ` pinskia at gcc dot gnu dot org ` (4 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-12-05 16:51 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-05 16:51 ------- Confirmed. -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 Last reconfirmed|0000-00-00 00:00:00 |2004-12-05 16:51:12 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18828 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/18828] [4.0 Regression] Extraneous warning with var_start and optimization 2004-12-04 13:47 [Bug tree-optimization/18828] New: [4.0 Regression] Extraneous warning with var_start and optimization pinskia at gcc dot gnu dot org 2004-12-04 13:47 ` [Bug tree-optimization/18828] " pinskia at gcc dot gnu dot org 2004-12-05 16:51 ` pinskia at gcc dot gnu dot org @ 2004-12-20 13:56 ` pinskia at gcc dot gnu dot org 2004-12-22 7:45 ` pinskia at gcc dot gnu dot org ` (3 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-12-20 13:56 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-20 13:56 ------- : Search converges between 2004-05-11-trunk (#454) and 2004-05-14-trunk (#455). : Search converges between 2003-07-16-ssa (#32) and 2003-07-17-ssa (#33). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18828 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/18828] [4.0 Regression] Extraneous warning with var_start and optimization 2004-12-04 13:47 [Bug tree-optimization/18828] New: [4.0 Regression] Extraneous warning with var_start and optimization pinskia at gcc dot gnu dot org ` (2 preceding siblings ...) 2004-12-20 13:56 ` pinskia at gcc dot gnu dot org @ 2004-12-22 7:45 ` pinskia at gcc dot gnu dot org 2005-01-05 20:41 ` pinskia at gcc dot gnu dot org ` (2 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-12-22 7:45 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-22 07:45 ------- Note we don't produce wrong code with this example but that is because I made sure we don't but the problem is that we don't know that we should not prograte into __builtin_var_start. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18828 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/18828] [4.0 Regression] Extraneous warning with var_start and optimization 2004-12-04 13:47 [Bug tree-optimization/18828] New: [4.0 Regression] Extraneous warning with var_start and optimization pinskia at gcc dot gnu dot org ` (3 preceding siblings ...) 2004-12-22 7:45 ` pinskia at gcc dot gnu dot org @ 2005-01-05 20:41 ` pinskia at gcc dot gnu dot org 2005-01-07 9:01 ` cvs-commit at gcc dot gnu dot org 2005-01-07 13:49 ` pinskia at gcc dot gnu dot org 6 siblings, 0 replies; 8+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-01-05 20:41 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-05 20:41 ------- Patch here: <http://gcc.gnu.org/ml/gcc-patches/2005-01/msg00299.html>. -- What |Removed |Added ---------------------------------------------------------------------------- Keywords| |patch http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18828 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/18828] [4.0 Regression] Extraneous warning with var_start and optimization 2004-12-04 13:47 [Bug tree-optimization/18828] New: [4.0 Regression] Extraneous warning with var_start and optimization pinskia at gcc dot gnu dot org ` (4 preceding siblings ...) 2005-01-05 20:41 ` pinskia at gcc dot gnu dot org @ 2005-01-07 9:01 ` cvs-commit at gcc dot gnu dot org 2005-01-07 13:49 ` pinskia at gcc dot gnu dot org 6 siblings, 0 replies; 8+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2005-01-07 9:01 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-01-07 09:01 ------- Subject: Bug 18828 CVSROOT: /cvs/gcc Module name: gcc Changes by: jakub@gcc.gnu.org 2005-01-07 09:01:00 Modified files: gcc : ChangeLog builtins.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/gcc.dg: 20050105-2.c Log message: PR tree-optimization/18828 * builtins.c (expand_builtin_next_arg): Remove argument and all the argument checking. (expand_builtin): Adjust caller. (expand_builtin_va_start): Likewise. Remove error for too many arguments. (fold_builtin_next_arg): Issue error for too many arguments. After checking arguments, replace them with magic arguments that prevent further checking of the args. * gcc.dg/20050105-2.c: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7054&r2=2.7055 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/builtins.c.diff?cvsroot=gcc&r1=1.410&r2=1.411 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4860&r2=1.4861 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/20050105-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18828 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/18828] [4.0 Regression] Extraneous warning with var_start and optimization 2004-12-04 13:47 [Bug tree-optimization/18828] New: [4.0 Regression] Extraneous warning with var_start and optimization pinskia at gcc dot gnu dot org ` (5 preceding siblings ...) 2005-01-07 9:01 ` cvs-commit at gcc dot gnu dot org @ 2005-01-07 13:49 ` pinskia at gcc dot gnu dot org 6 siblings, 0 replies; 8+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-01-07 13:49 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-07 13:48 ------- Fixed, thanks Jakub. -- What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18828 ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2005-01-07 13:49 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2004-12-04 13:47 [Bug tree-optimization/18828] New: [4.0 Regression] Extraneous warning with var_start and optimization pinskia at gcc dot gnu dot org 2004-12-04 13:47 ` [Bug tree-optimization/18828] " pinskia at gcc dot gnu dot org 2004-12-05 16:51 ` pinskia at gcc dot gnu dot org 2004-12-20 13:56 ` pinskia at gcc dot gnu dot org 2004-12-22 7:45 ` pinskia at gcc dot gnu dot org 2005-01-05 20:41 ` pinskia at gcc dot gnu dot org 2005-01-07 9:01 ` cvs-commit at gcc dot gnu dot org 2005-01-07 13:49 ` pinskia at gcc dot gnu dot org
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