On Sat, 2020-02-22 at 18:15 -0600, Segher Boessenkool wrote: > On Mon, Feb 17, 2020 at 02:48:20PM -0600, will schmidt wrote: > > On Thu, 2020-02-13 at 17:23 -0600, Segher Boessenkool wrote: > > > On Thu, Feb 13, 2020 at 04:41:09PM -0600, will schmidt wrote: > > > > -/* { dg-final { scan-tree-dump-times "LOOP VECTORIZED" 14 > > > > "vect" } > > > > } */ > > > > +/* { dg-final { scan-tree-dump-times "LOOP VECTORIZED" 14 > > > > "vect" { > > > > target p8vector_hw } } } */ > > > > > > That actually checks if the hardware is p8 or later, while what > > > you > > > care > > > about is what options are compiled with. Say, if running on a p8 > > > but > > > compiling for a p7 this will fail? > > > > Right... > > > > I did some experimentation and havn't come up with anything I'm > > completely satisfied with. The powerpc_p8vector_ok check doesn't > > fail out like I'd expect it to on a power7 target. > > What we usually do is duplicate the test, run one for p7, and the > other > for p8. This isn't nice at all. > > > Ok, so it appears check_effective_target_powerpc_p8vector_ok () > > inserts > > a "-mpower8-vector" option as part of it's test, so as long as the > > compiler on a power7 system is able to generate power8 code, that > > power8-vector check will pass, even if we have not otherwise > > indicated > > power8 in our test incantation. > > Yes, that is what the *_ok mean: whether we can compile code for that > target. This isn't usually useful at all. > > > I'll think on this one some more... > > If the test can be disabled at the source code level, there are > _ARCH_PWR8 > and friends. Maybe we want some dejagnu effective targets that just > test > some of those defines?
Yup, I've sorted out some changes that work. It's now more of a target-supports.exp change, versus just touching this testcase, so I'm posting in a separate thread, momentarily. Thanks -Will > > > Segher