[Bug tree-optimization/78512] [7 Regression] r242674 miscompiles Linux kernel

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78512

--- Comment #6 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Tue Nov 29 21:08:02 2016
New Revision: 242975

URL: https://gcc.gnu.org/viewcvs?rev=242975&root=gcc&view=rev
Log:
PR tree-optimization/78512 - [7 Regression] r242674 miscompiles Linux kernel

gcc/ChangeLog:

        PR tree-optimization/78512
        * config/linux.h (TARGET_PRINTF_POINTER_FORMAT): Remove.
        * config/rs6000/linux.h: Same.
        * config/rs6000/linux64.h: Same.
        * config/sol2.h: Same.
        * config/sol2.c (solaris_printf_pointer_format): Remove.
        * doc/tm.texi.in (TARGET_PRINTF_POINTER_FORMAT): Remove.
        * doc/tm.texi: Regenerate.
        * gimple-ssa-sprintf.c (format_pointer): Rempove.
        (pass_sprintf_length::compute_format_length): Return bool.
        (pass_sprintf_length::handle_gimple_call): Adjust.
        * target.def (printf_pointer_format): Remove.
        * targhooks.c (default_printf_pointer_format): Remove.
        (linux_printf_pointer_format): Same.
        * targhooks.h (default_printf_pointer_format): Remove.
        (linux_printf_pointer_format, solaris_printf_pointer_format): Same.

gcc/testsuite/ChangeLog:

        PR tree-optimization/78512
        * gcc.dg/tree-ssa/builtin-sprintf-6.c: Add test cases.
        * gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Remove test cases.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/linux.h
    trunk/gcc/config/rs6000/linux.h
    trunk/gcc/config/rs6000/linux64.h
    trunk/gcc/config/sol2.c
    trunk/gcc/config/sol2.h
    trunk/gcc/doc/tm.texi
    trunk/gcc/doc/tm.texi.in
    trunk/gcc/gimple-ssa-sprintf.c
    trunk/gcc/target.def
    trunk/gcc/targhooks.c
    trunk/gcc/targhooks.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-6.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-1.c