[Bug tree-optimization/88993] [9 Regression] GCC 9 -Wformat-overflow=2 should reflect real libc limits

2023-06-20 Thread eggert at cs dot ucla.edu via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88993

Paul Eggert  changed:

   What|Removed |Added

 CC||eggert at cs dot ucla.edu

--- Comment #16 from Paul Eggert  ---
Although fixed for printf, this bug remains for sprintf so I filed a followup
report for that, bug#110333.

[Bug tree-optimization/88993] [9 Regression] GCC 9 -Wformat-overflow=2 should reflect real libc limits

2019-02-22 Thread msebor at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88993

Martin Sebor  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |FIXED

--- Comment #15 from Martin Sebor  ---
The warning has been relaxed for GCC 9 in r269125.

[Bug tree-optimization/88993] [9 Regression] GCC 9 -Wformat-overflow=2 should reflect real libc limits

2019-02-22 Thread msebor at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88993

--- Comment #14 from Martin Sebor  ---
Author: msebor
Date: Fri Feb 22 17:38:11 2019
New Revision: 269125

URL: https://gcc.gnu.org/viewcvs?rev=269125&root=gcc&view=rev
Log:
PR tree-optimization/88993 - GCC 9 -Wformat-overflow=2 should reflect real libc
limits
PR tree-optimization/88835 - overly aggressive -Werror=format-overflow for
printf

gcc/ChangeLog:

PR tree-optimization/88993
PR tree-optimization/88853
* gimple-ssa-sprintf.c (sprintf_dom_walker::call_info::is_file_func):
New helper.
(sprintf_dom_walker::call_info::is_string_func): New helper.
(format_directive): Only issue "may exceed" 4095/INT_MAX warnings
for formatted string functions.
(sprintf_dom_walker::handle_gimple_call): Fix a typo in a comment.

gcc/testsuite/ChangeLog:

PR tree-optimization/88993
PR tree-optimization/88853
* gcc.dg/tree-ssa/builtin-fprintf-warn-2.c: New test.
* gcc.dg/tree-ssa/builtin-printf-warn-2.c: New test.
* gcc.dg/tree-ssa/builtin-snprintf-warn-3.c: Adjust.
* gcc.dg/tree-ssa/builtin-sprintf-warn-18.c: Same.


Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-fprintf-warn-2.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-printf-warn-2.c
Modified:
trunk/gcc/gimple-ssa-sprintf.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-snprintf-warn-3.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-18.c

[Bug tree-optimization/88993] [9 Regression] GCC 9 -Wformat-overflow=2 should reflect real libc limits

2019-02-12 Thread msebor at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88993

Martin Sebor  changed:

   What|Removed |Added

  Component|c   |tree-optimization

--- Comment #13 from Martin Sebor  ---
The patch referenced in comment #9 suppresses the warning for printf and
fprintf (leaving it for sprintf).