[Bug middle-end/51038] [4.7 Regression]: 29_atomics/atomic_flag/clear/1.cc test_and_set/explicit.cc implicit.cc

[amacleod at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51038

--- Comment #2 from Andrew Macleod <amacleod at redhat dot com> 2011-11-10 
20:38:46 UTC ---
Author: amacleod
Date: Thu Nov 10 20:38:33 2011
New Revision: 181271

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181271
Log:
    PR middle-end/51038

    libstdc++-v3
    * include/bits/atomic_base.h (atomic_thread_fence): Call built-in.
    (atomic_signal_fence): Call built-in.
    (test_and_set, clear): Call new atomic built-ins.

    gcc
    * builtins.c (expand_builtin_atomic_clear): New.  Expand atomic_clear.
    (expand_builtin_atomic_test_and_set): New.  Expand atomic test_and_set.
    (expand_builtin): Add cases for test_and_set and clear.
    * sync-builtins.def (BUILT_IN_ATOMIC_TEST_AND_SET): New.
    (BUILT_IN_ATOMIC_CLEAR): New.

    testsuite
    * gcc.dg/atomic-invalid.c: Add test for invalid __atomic_clear models.
    * gcc.dg/atomic-flag.c: New.  Test __atomic_test_and_set and
    __atomic_clear.


Added:
    trunk/gcc/testsuite/gcc.dg/atomic-flag.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/sync-builtins.def
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/atomic-invalid.c
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/atomic_base.h