[Bug middle-end/36757] __builtin_signbit should be type-generic

[fxcoudert at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36757

--- Comment #3 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
Author: fxcoudert
Date: Tue Aug 18 20:07:57 2015
New Revision: 226990

URL: https://gcc.gnu.org/viewcvs?rev=226990&root=gcc&view=rev
Log:
        PR middle-end/36757

        * builtins.c (expand_builtin_signbit): Add asserts to make sure
        we can expand BUILT_IN_SIGNBIT inline.
        * builtins.def (BUILT_IN_SIGNBIT): Make type-generic.
        * doc/extend.texi: Document the type-generic __builtin_signbit.

        * c-common.c (check_builtin_function_arguments): Add check
        for BUILT_IN_SIGNBIT argument.

        * gcc.dg/builtins-error.c: Add checks for __builtin_signbit.
        * gcc.dg/tg-tests.h: Add checks for __builtin_signbit.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/builtins.def
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-common.c
    trunk/gcc/doc/extend.texi
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/builtins-error.c
    trunk/gcc/testsuite/gcc.dg/tg-tests.h