On Fri, 28 Oct 2011, Richard Henderson wrote: > VEC_UNPACK_HI_EXPR and VEC_UNPACK_LO_EXPR need even more -- at > least for signed -- a source of sign-extended data. Either a LT > comparison that produces -1 (common, but not universal) or an > ASHIFTRT with a constant. We're definitely in the land of > diminishing returns here.
Right, I only meant to refer to the zero-extending variant. brgds, H-P
