r181851 - in /trunk/gcc: ChangeLog config/sparc...

[rth@gcc.gnu.org]

Author: rth
Date: Wed Nov 30 15:53:45 2011
New Revision: 181851

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181851
Log:
sparc: Convert to atomic_compare_and_swap.

        * config/sparc/constraints.md ("w"): New.
        * config/sparc/predicates.md (mem_noofs_operand): New.
        * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Make static.
        Generate the boolean result of the atomic_compare_exchange.
        (sparc_expand_compare_and_swap): New.
        * config/sparc/sync.md (atomic_compare_and_swap<I>): New.
        (atomic_compare_and_swap<I48MODE>_1): Rename from
        *sync_compare_and_swap<I48MODE>, use mem_noofs_operand.
        (*atomic_compare_and_swapdi_v8plus): Rename from
        *sync_compare_and_swapdi_v8plus, use mem_noofs_operand.
        (sync_compare_and_swap<I12MODE>): Remove.
        (sync_compare_and_swap<I48MODE>): Remove.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/sparc/constraints.md
    trunk/gcc/config/sparc/predicates.md
    trunk/gcc/config/sparc/sparc-protos.h
    trunk/gcc/config/sparc/sparc.c
    trunk/gcc/config/sparc/sync.md