2854       foreach_inst_in_block_reverse_starting_from(fs_inst, scan_inst, inst) {  in compute_to_mrf()
2855          if (regions_overlap(scan_inst->dst, scan_inst->size_written,  in compute_to_mrf()
2866 	    if (scan_inst->is_partial_write())  in compute_to_mrf()
2873             if (!region_contained_in(scan_inst->dst, scan_inst->size_written,  in compute_to_mrf()
2878 	    if (scan_inst->mlen)  in compute_to_mrf()
2885 	       if (scan_inst->is_math()) {  in compute_to_mrf()
2892                inst->src[0], scan_inst->dst, scan_inst->size_written);  in compute_to_mrf()
2901 	 if (block->start() == scan_inst)  in compute_to_mrf()
2908 	 for (int i = 0; i < scan_inst->sources; i++) {  in compute_to_mrf()
2909             if (regions_overlap(scan_inst->src[i], scan_inst->size_read(i),  in compute_to_mrf()
2917          if (regions_overlap(scan_inst->dst, scan_inst->size_written,  in compute_to_mrf()
2925          if (scan_inst->mlen > 0 && scan_inst->base_mrf != -1 &&  in compute_to_mrf()
2926              regions_overlap(fs_reg(MRF, scan_inst->base_mrf), scan_inst->mlen * REG_SIZE,  in compute_to_mrf()
2945       foreach_inst_in_block_reverse_starting_from(fs_inst, scan_inst, inst) {  in compute_to_mrf()
2946          if (regions_overlap(scan_inst->dst, scan_inst->size_written,  in compute_to_mrf()
2950                inst->src[0], scan_inst->dst, scan_inst->size_written);  in compute_to_mrf()
2952             const unsigned rel_offset = reg_offset(scan_inst->dst) -  in compute_to_mrf()
2960                scan_inst->dst.nr = inst->dst.nr + rel_offset / REG_SIZE * 4;  in compute_to_mrf()
2965                if (scan_inst->size_written < 2 * REG_SIZE)  in compute_to_mrf()
2966                   scan_inst->dst.nr &= ~BRW_MRF_COMPR4;  in compute_to_mrf()
2972                scan_inst->dst.nr = inst->dst.nr + rel_offset / REG_SIZE;  in compute_to_mrf()
2975             scan_inst->dst.file = MRF;  in compute_to_mrf()
2976             scan_inst->dst.offset = inst->dst.offset + rel_offset % REG_SIZE;  in compute_to_mrf()
2977             scan_inst->saturate |= inst->saturate;  in compute_to_mrf()
3269    foreach_inst_in_block_reverse_starting_from(fs_inst, scan_inst, inst) {  in insert_gen4_pre_send_dependency_workarounds()
3273       if (block->start() == scan_inst && block->num != 0) {  in insert_gen4_pre_send_dependency_workarounds()
3286       if (scan_inst->dst.file == VGRF) {  in insert_gen4_pre_send_dependency_workarounds()
3287          for (unsigned i = 0; i < regs_written(scan_inst); i++) {  in insert_gen4_pre_send_dependency_workarounds()
3288             int reg = scan_inst->dst.nr + i;  in insert_gen4_pre_send_dependency_workarounds()
3295                if (scan_inst->exec_size == 16)  in insert_gen4_pre_send_dependency_workarounds()
3302       clear_deps_for_inst_src(scan_inst, needs_dep, first_write_grf, write_len);  in insert_gen4_pre_send_dependency_workarounds()
3335    foreach_inst_in_block_starting_from(fs_inst, scan_inst, inst) {  in insert_gen4_post_send_dependency_workarounds()
3337       if (block->end() == scan_inst && block->num != cfg->num_blocks - 1) {  in insert_gen4_post_send_dependency_workarounds()
3340                DEP_RESOLVE_MOV(fs_builder(this, block, scan_inst),  in insert_gen4_post_send_dependency_workarounds()
3347       clear_deps_for_inst_src(scan_inst, needs_dep, first_write_grf, write_len);  in insert_gen4_post_send_dependency_workarounds()
3352       if (scan_inst->dst.file == VGRF &&  in insert_gen4_post_send_dependency_workarounds()
3353           scan_inst->dst.nr >= first_write_grf &&  in insert_gen4_post_send_dependency_workarounds()
3354           scan_inst->dst.nr < first_write_grf + write_len &&  in insert_gen4_post_send_dependency_workarounds()
3355           needs_dep[scan_inst->dst.nr - first_write_grf]) {  in insert_gen4_post_send_dependency_workarounds()
3356          DEP_RESOLVE_MOV(fs_builder(this, block, scan_inst),  in insert_gen4_post_send_dependency_workarounds()
3357                          scan_inst->dst.nr);  in insert_gen4_post_send_dependency_workarounds()
3358          needs_dep[scan_inst->dst.nr - first_write_grf] = false;  in insert_gen4_post_send_dependency_workarounds()