[Mesa-dev] [PATCH 09/26] nir/builder: Add a helper for storing to variable derefs

[Rob Clark]

On Fri, Mar 25, 2016 at 7:12 PM, Jason Ekstrand <jason at jlekstrand.net> wrote:
>

Reviewed-by: Rob Clark <robdclark at gmail.com>

> ---
>  src/compiler/nir/nir_builder.h | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/src/compiler/nir/nir_builder.h b/src/compiler/nir/nir_builder.h
> index 4df79f5..e9c409b 100644
> --- a/src/compiler/nir/nir_builder.h
> +++ b/src/compiler/nir/nir_builder.h
> @@ -399,6 +399,22 @@ nir_store_var(nir_builder *build, nir_variable *var, nir_ssa_def *value,
>  }
>
>  static inline void
> +nir_store_deref_var(nir_builder *build, nir_deref_var *deref,
> +                    nir_ssa_def *value, unsigned writemask)
> +{
> +   const unsigned num_components =
> +      glsl_get_vector_elements(nir_deref_tail(&deref->deref)->type);
> +
> +   nir_intrinsic_instr *store =
> +      nir_intrinsic_instr_create(build->shader, nir_intrinsic_store_var);
> +   store->num_components = num_components;
> +   store->const_index[0] = writemask & ((1 << num_components) - 1);
> +   store->variables[0] = nir_deref_as_var(nir_copy_deref(store, &deref->deref));
> +   store->src[0] = nir_src_for_ssa(value);
> +   nir_builder_instr_insert(build, &store->instr);
> +}
> +
> +static inline void
>  nir_copy_deref_var(nir_builder *build, nir_deref_var *dest, nir_deref_var *src)
>  {
>     assert(nir_deref_tail(&dest->deref)->type ==
> --
> 2.5.0.400.gff86faf
>
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