It's not really unordered in the sense that it can still stall on
ordered things and we don't need a SYNC_NOP for that because it is a
SYNC_NOP. However, it also doesn't count when computing instruction
distances.
Fixes:
18e72ee2108 "intel/fs: Add FS_OPCODE_SCHEDULING_FENCE"
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6781>
case BRW_OPCODE_DO:
case SHADER_OPCODE_UNDEF:
case FS_OPCODE_PLACEHOLDER_HALT:
+ case FS_OPCODE_SCHEDULING_FENCE:
return 0;
default:
/* Note that the following is inaccurate for virtual instructions