[Mesa-dev] [PATCH 10/26] nir/builder: Add a helper for creating undefs

[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 | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
>
> diff --git a/src/compiler/nir/nir_builder.h b/src/compiler/nir/nir_builder.h
> index e9c409b..3dc7c25 100644
> --- a/src/compiler/nir/nir_builder.h
> +++ b/src/compiler/nir/nir_builder.h
> @@ -75,6 +75,20 @@ nir_builder_cf_insert(nir_builder *build, nir_cf_node *cf)
>  }
>
>  static inline nir_ssa_def *
> +nir_ssa_undef(nir_builder *build, unsigned num_components, unsigned bit_size)
> +{
> +   nir_ssa_undef_instr *undef =
> +      nir_ssa_undef_instr_create(build->shader, num_components);
> +   undef->def.bit_size = bit_size;
> +   if (!undef)
> +      return NULL;
> +
> +   nir_instr_insert(nir_before_cf_list(&build->impl->body), &undef->instr);
> +
> +   return &undef->def;
> +}
> +
> +static inline nir_ssa_def *
>  nir_build_imm(nir_builder *build, unsigned num_components, nir_const_value value)
>  {
>     nir_load_const_instr *load_const =
> --
> 2.5.0.400.gff86faf
>
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