[Bug tree-optimization/78910] Wrong print-return-value for a negative number

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78910

--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Thu Jan  5 22:32:09 2017
New Revision: 244116

URL: https://gcc.gnu.org/viewcvs?rev=244116&root=gcc&view=rev
Log:
PR tree-optimization/78910 - Wrong print-return-value for a negative number

gcc/ChangeLog:

        PR tree-optimization/78910
        * gimple-ssa-sprintf.c (tree_digits): Add an argument.
        (format_integer): Correct off-by-one error in the handling
        of precision with negative numbers in signed conversions..

gcc/testsuite/ChangeLog:

        PR tree-optimization/78910
        * gcc.dg/tree-ssa/builtin-sprintf-warn-7.c: Adjust text of expected
        diagnostics.
        * gcc.dg/tree-ssa/builtin-sprintf.c: Add test cases.
        * gcc.dg/tree-ssa/pr78910.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr78910.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-ssa-sprintf.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-7.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf.c