.text prefix: addr32 loop .Lrep_ret addr32 jrcxz .Ldata16 repe addss %xmm0, %xmm0 repne addss %xmm0, %xmm0 repe vaddss %xmm0, %xmm0, %xmm0 repne vaddss %xmm0, %xmm0, %xmm0 .Lrep_ret: bnd ret rep ret bnd rep ret rep bnd ret .Ldata16: #bogus data16 addps %xmm0, %xmm0 data16 addpd %xmm0, %xmm0 data16 vaddps %xmm0, %xmm0, %xmm0 data16 vaddpd %xmm0, %xmm0, %xmm0 .p2align 4,0