[Mesa-dev] [PATCH] glsl: handle case where index is array deref in optimize_split_arrays

[Juha-Pekka Heikkila]

Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>

On 19.11.2015 13:12, Tapani Pälli wrote:
> Previously pass did not traverse to those array dereferences which were
> used as indices to arrays. This fixes Synmark2 Gl42CSCloth application
> issues.
>
> Signed-off-by: Tapani Pälli <tapani.palli at intel.com>
> ---
>   src/glsl/opt_array_splitting.cpp | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/src/glsl/opt_array_splitting.cpp b/src/glsl/opt_array_splitting.cpp
> index 9e73f3c..89ce76b 100644
> --- a/src/glsl/opt_array_splitting.cpp
> +++ b/src/glsl/opt_array_splitting.cpp
> @@ -188,6 +188,10 @@ ir_array_reference_visitor::visit_enter(ir_dereference_array *ir)
>      if (entry && !ir->array_index->as_constant())
>         entry->split = false;
>
> +   /* If the index is also array dereference, visit index. */
> +   if (ir->array_index->as_dereference_array())
> +      visit_enter(ir->array_index->as_dereference_array());
> +
>      return visit_continue_with_parent;
>   }
>
>