On 04/19/2017 08:00 AM, Jakub Jelinek wrote:
Hi!The testcase attempts to use long double __attribute__((vector_size (16))) vector and in addition to that uses __typeof((v<v)[0]). The preconditions of that are not just that long double has size which is power of 2 (e.g. satisfied on x86_64 for sizeof, but not really because it is still actually just 80-bit), but also that the size must not be larger than 16 (otherwise not even a single element would fit) and because v<v has type of an integral vector, there also needs to be an integral type of that size, which is not available e.g. on ILP32 targets when long double is 128-bit but there is no __int128_t. Tested on x86_64-linux and i686-linux, ok for trunk? 2017-04-19 Jakub Jelinek <ja...@redhat.com> PR c++/80459 * c-c++-common/opaque-vector.c (SIZEOF_MAXINT): Define. (f): Don't test long double vectors if __SIZEOF_LONG_DOUBLE__ is not power of 2, or is more than 16 or more than SIZEOF_MAXINT.
OK. jeff
