[Bug target/52941] SH Target: Add support for movco.l / movli.l atomics on SH4A

[olegendo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52941

--- Comment #11 from Oleg Endo <olegendo at gcc dot gnu.org> 2012-05-29 20:26:46 UTC ---
Author: olegendo
Date: Tue May 29 20:26:41 2012
New Revision: 187987

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187987
Log:
    PR target/52941
    * config/sh/predicates.md (atomic_arith_operand,
    atomic_logical_operand): New predicates.
    * config/sh/sh.c (sh_option_override): Check atomic options.
    * config/sh/sh.h (TARGET_ANY_ATOMIC, UNSUPPORTED_ATOMIC_OPTIONS,
    UNSUPPORTED_HARD_ATOMIC_CPU): New macros.
    (DRIVER_SELF_SPECS): Use UNSUPPORTED_ATOMIC_OPTIONS and
    UNSUPPORTED_HARD_ATOMIC_CPU.
    * config/sh/sync.md: Update description comments.
    (I12): New mode iterator.
    (fetchop_predicate, fetchop_constraint): New code attributes.
    (atomic_compare_and_swapsi_hard, atomic_compare_and_swap<mode>_hard,
    atomic_exchangesi_hard, atomic_exchange<mode>_hard,
    atomic_fetch_<fetchop_name>si_hard,
    atomic_fetch_<fetchop_name><mode>_hard,
    atomic_fetch_nandsi_hard, atomic_fetch_nand<mode>_hard,
    atomic_<fetchop_name>_fetchsi_hard,
    atomic_<fetchop_name>_fetch<mode>_hard,
    atomic_nand_fetchsi_hard, atomic_nand_fetch<mode>_hard,
    atomic_test_and_set_hard): New insns.
    (atomic_compare_and_swap<mode>_soft, atomic_exchange<mode>_soft,
    atomic_fetch_<fetchop_name><mode>_soft, atomic_fetch_nand<mode>_soft,
    atomic_<fetchop_name>_fetch<mode>_soft, atomic_nand_fetch<mode>_soft,
    atomic_test_and_set_soft): Use same formatting for the first line of
    the asm block as in new insns above.
    (atomic_compare_and_swap<mode>, atomic_exchange<mode>,
    atomic_fetch_<fetchop_name><mode>, atomic_<fetchop_name>_fetch<mode>,
    atomic_test_and_set): Integrate new *_hard insns into expanders.
    * config/sh/sh.opt (mhard-atomic): New option.
    * doc/invoke.texi (SH Options): Document it.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/sh/predicates.md
    trunk/gcc/config/sh/sh.c
    trunk/gcc/config/sh/sh.h
    trunk/gcc/config/sh/sh.opt
    trunk/gcc/config/sh/sync.md
    trunk/gcc/doc/invoke.texi