[Bug target/58115] testcase gcc.target/i386/intrinsics_4.c failure

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58115

--- Comment #15 from David Edelsohn <dje at gcc dot gnu.org> ---
Author: dje
Date: Sat Jan 11 18:57:56 2014
New Revision: 206554

URL: http://gcc.gnu.org/viewcvs?rev=206554&root=gcc&view=rev
Log:
        PR target/58115
        * config/rs6000/rs6000.h (SWITCHABLE_TARGET): Define.
        * config/rs6000/rs6000.c: Include target-globals.h.
        (rs6000_set_current_function): Instead of doing target_reinit
        unconditionally, use save_target_globals_default_opts and
        restore_target_globals.

        * config/rs6000/rs6000-builtin.def (mffs, mtfsf): Add builtins for
        FPSCR.
        * config/rs6000/rs6000.c (rs6000_expand_mtfsf_builtin): New.
        (rs6000_expand_builtin): Handle mffs and mtfsf.
        (rs6000_init_builtins): Define mffs and mtfsf.
        * config/rs6000/rs6000.md (UNSPECV_MFFS, UNSPECV_MTFSF): New.
        (rs6000_mffs): New pattern.
        (rs6000_mtfsf): New pattern.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000-builtin.def
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/config/rs6000/rs6000.h
    trunk/gcc/config/rs6000/rs6000.md