On 8/12/22 12:13, Robin Dapp wrote: > Hi, > > swapping the two elements of a V2DImode or V2DFmode vector can be done > with vpdi instead of using the generic way of loading a permutation mask > from the literal pool and vperm. > > Analogous to the V2DI/V2DF case reversing the elements of a four-element > vector can be done by first swapping the elements of the first > doubleword as well the ones of the second one and subsequently rotate > the doublewords by 32 bits. > > Bootstrapped and regtested, no regressions. > > Is it OK? > > Regards > Robin > > gcc/ChangeLog: > > PR target/100869 > * config/s390/vector.md (@vpdi4_2<mode>): New pattern. > (rotl<mode>3_di): New pattern. > * config/s390/vx-builtins.md: Use vpdi and verll for reversing > elements. > > gcc/testsuite/ChangeLog: > > * gcc.target/s390/zvector/vec-reve-int-long.c: New test.
Ok. Thanks! Andreas
