Re: [PATCH v2 0/4] MR603: vkd3d-shader: Use 64 bit swizzles for 64 bit data types in VSIR.

[Conor McCarthy (＠cmccarthy)]

Conor McCarthy (@cmccarthy) commented about libs/vkd3d-shader/dxil.c:
>  src_param = instruction_src_params_alloc(ins, 1, sm6);
>  src_param_init_from_value(src_param, src);
> - src_param->swizzle = vkd3d_shader_create_swizzle(elem_idx, elem_idx, elem_idx, elem_idx);
> - src_param_init_scalar(src_param, elem_idx);

Instead of the double initialisation, it may be better to call only `src_param_init_scalar()`, and then do `src_param->reg = src->u.reg`