On Mon, 13 Apr 2015, Hans-Peter Nilsson wrote:
> b.cc:5:25: warning: requested alignment 16 is larger than 8 [-Wattributes]
>alignas (16) char x[16];
>
> which is mysterious (where does the 8 come from?), until I grep
> the error string and find
> c-family/c-common.c:check_cxx_fundamental_ali
(check_cxx_fundamental_alignment_constraints is Dodji's, others
CC:ed were already in the thread)
Looking into those atomic things and running tests for cris-elf,
I get FAIL for
libstdc++-v3/testsuite/29_atomics/atomic/65147.cc, specifically
struct S16 {
char c[16];
};
static_assert( alignof(
