FWIW, this patch looks good to me. Bill
On Mon, 2015-06-15 at 18:15 -0400, David Edelsohn wrote: > POWER8 added a multiply instruction that makes mulv4si more efficient. > And vmladduhm can be used for mulv8hi3. This patch also changes > vmladduhm from a black box UNSPEC to descriptive RTL. > > Bootstrapped on powerpc64le-linux. > > * altivec.md: Delete UNSPEC_VMLADDUHM. > (mulv4si3_p8): New pattern. > (mulv4si3): Use it for POWER8. > (mulv8hi3): Use vmladduhm with zero addend. > (altivec_vmladduhm): Descriptive RTL. > > - David
