FF = _mm_macc_pd(_mm_macc_pd(twogbeps,H,G),gbeps,Fp);
fgb = _mm_mul_pd(gbqqfactor,_mm_mul_pd(FF,gbscale));
dvdatmp = _mm_mul_pd(minushalf,_mm_macc_pd(fgb,r00,vgb));
+ dvdatmp = _mm_unpacklo_pd(dvdatmp,_mm_setzero_pd());
dvdasum = _mm_add_pd(dvdasum,dvdatmp);
gmx_mm_increment_1real_pd(dvda+jnrA,_mm_mul_pd(dvdatmp,_mm_mul_pd(isaj0,isaj0)));
velec = _mm_mul_pd(qq00,rinv00);
FF = _mm_macc_pd(_mm_macc_pd(twogbeps,H,G),gbeps,Fp);
fgb = _mm_mul_pd(gbqqfactor,_mm_mul_pd(FF,gbscale));
dvdatmp = _mm_mul_pd(minushalf,_mm_macc_pd(fgb,r00,vgb));
+ dvdatmp = _mm_unpacklo_pd(dvdatmp,_mm_setzero_pd());
dvdasum = _mm_add_pd(dvdasum,dvdatmp);
gmx_mm_increment_1real_pd(dvda+jnrA,_mm_mul_pd(dvdatmp,_mm_mul_pd(isaj0,isaj0)));
velec = _mm_mul_pd(qq00,rinv00);