https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78521
--- Comment #2 from Martin Sebor ---
Author: msebor
Date: Mon Nov 28 21:41:41 2016
New Revision: 242935
URL: https://gcc.gnu.org/viewcvs?rev=242935=gcc=rev
Log:
PR middle-end/78521 - [7 Regression] incorrect byte count in -Wformat-length
warning with non-constant width or precision
PR middle-end/78520 - missing warning for snprintf with size greater than
INT_MAX
gcc/ChangeLog:
PR middle-end/78520
* gimple-ssa-sprintf.c (target_max_value): Remove.
(target_int_max, target_size_max): Use TYPE_MAX_VALUE.
(get_width_and_precision): New function.
(format_integer, format_floating, get_string_length, format_string):
Correct handling of width and precision with unknown value.
(format_directive): Add warning.
(pass_sprintf_length::compute_format_length): Allow for precision
to consist of a sole period with no asterisk or digits after it.
gcc/testsuite/ChangeLog:
PR middle-end/78520
* gcc.dg/tree-ssa/builtin-sprintf-5.c: Add test cases.
* gcc.dg/tree-ssa/builtin-sprintf-6.c: New test.
* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Add test cases.
* gcc.dg/tree-ssa/builtin-sprintf-warn-3.c: Add test cases.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-6.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gimple-ssa-sprintf.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-5.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-1.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-3.c
