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Subject: [Bug middle-end/37908] atomic NAND op generate wrong code; __sync_nand_and_fetch, __sync_fetch_and_nand
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------- Comment #12 from uros at gcc dot gnu dot org  2008-11-21 07:29 -------
Subject: Bug 37908

Author: uros
Date: Fri Nov 21 07:28:27 2008
New Revision: 142082

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=142082
Log:
        PR middle-end/37908
        * config/ia64/ia64.c (ia64_expand_atomic_ope): Properly handle NAND
        case by calculating ~(new_reg & val) instead of (~new_reg & val).
        * config/ia64/sync.md (sync_nand<mode>): Change insn RTX
        to (not:IMODE (and:IMODE (...))).
        (sync_old_nand<mode>): Ditto.
        (sync_new_nand<mode>): Ditto.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/ia64/ia64.c
    trunk/gcc/config/ia64/sync.md
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37908