else {
insn->bits1.da16.dest_subreg_nr = dest.subnr / 16;
insn->bits1.da16.dest_writemask = dest.dw1.bits.writemask;
+ assert(dest.dw1.bits.writemask != 0 ||
+ dest.file == BRW_ARCHITECTURE_REGISTER_FILE);
/* From the Ivybridge PRM, Vol 4, Part 3, Section 5.2.4.1:
* Although Dst.HorzStride is a don't care for Align16, HW needs
* this to be programmed as "01".