}
case nir_intrinsic_load_workgroup_id: {
Temp dst = get_ssa_temp(ctx, &instr->dest.ssa);
- const struct ac_arg* args = ctx->args->ac.workgroup_ids;
- bld.pseudo(aco_opcode::p_create_vector, Definition(dst),
- args[0].used ? Operand(get_arg(ctx, args[0])) : Operand::zero(),
- args[1].used ? Operand(get_arg(ctx, args[1])) : Operand::zero(),
- args[2].used ? Operand(get_arg(ctx, args[2])) : Operand::zero());
- emit_split_vector(ctx, dst, 3);
+ if (ctx->stage.hw == HWStage::CS) {
+ const struct ac_arg* ids = ctx->args->ac.workgroup_ids;
+ bld.pseudo(aco_opcode::p_create_vector, Definition(dst),
+ ids[0].used ? Operand(get_arg(ctx, ids[0])) : Operand::zero(),
+ ids[1].used ? Operand(get_arg(ctx, ids[1])) : Operand::zero(),
+ ids[2].used ? Operand(get_arg(ctx, ids[2])) : Operand::zero());
+ emit_split_vector(ctx, dst, 3);
+ } else if (ctx->stage == mesh_ngg) {
+ /* TODO: support 3 dimensional workgroup IDs properly. */
+ Temp idx_arg = get_arg(ctx, ctx->args->ac.vertex_id);
+ Temp base_arg = get_arg(ctx, ctx->args->ac.base_vertex);
+ Temp idx = bld.vop1(aco_opcode::v_readfirstlane_b32, bld.def(s1), idx_arg);
+ Temp workgroup_index = bld.sop2(aco_opcode::s_add_u32, bld.def(s1), bld.def(s1, scc), idx, base_arg);
+ Temp one = bld.copy(bld.def(s1), Operand::c32(1));
+ Temp workgroup_ids[3] = {workgroup_index, one, one};
+ create_vec_from_array(ctx, workgroup_ids, 3, RegType::sgpr, 4, 0, dst);
+ }
break;
}
case nir_intrinsic_load_local_invocation_index: {