On Fri, Feb 07, 2014 at 02:12:44PM +0100, Andreas Krebbel wrote:
> 2014-02-07 Andreas Krebbel <[email protected]>
>
> * gcc.dg/gcc-have-sync-compare-and-swap.c: Align the 16 byte
> variable used for atomic operations.
Ok.
> --- a/gcc/testsuite/gcc.dg/gcc-have-sync-compare-and-swap.c
> +++ b/gcc/testsuite/gcc.dg/gcc-have-sync-compare-and-swap.c
> @@ -40,10 +40,12 @@ void f8()
> #endif
> }
>
> +/* aligned (16): On S/390 16 byte compare and swap operations are only
> + available if the memory operand resides on a 16 byte boundary. */
> void f16()
> {
> #ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16
> - typedef int __attribute__ ((__mode__ (__TI__))) ti_int_type;
> + typedef int __attribute__ ((__mode__ (__TI__), aligned (16))) ti_int_type;
> ti_int_type ti_int;
> __sync_bool_compare_and_swap (&ti_int, (ti_int_type)0, (ti_int_type)1);
> #endif
Jakub
