[Mesa-dev] [PATCH 1/2] glsl: Add is_horizontal() method to ir_expression.

[Ian Romanick]

On 02/22/2014 04:35 PM, Matt Turner wrote:
> Cc: "10.1" <mesa-stable at lists.freedesktop.org>
> ---
>   src/glsl/ir.h | 10 ++++++++++
>   1 file changed, 10 insertions(+)
>
> diff --git a/src/glsl/ir.h b/src/glsl/ir.h
> index e27e30a..55ec5ff 100644
> --- a/src/glsl/ir.h
> +++ b/src/glsl/ir.h
> @@ -1458,6 +1458,16 @@ public:
>      }
>
>      /**
> +    * Return whether the expression operates on vectors horizontally.
> +    */
> +   bool is_horizontal() const
> +   {
> +      return operation == ir_binop_all_equal ||
> +             operation == ir_binop_any_nequal ||
> +             operation == ir_binop_dot;

I'm pretty sure ir_unop_any should also be in this list  I also wonder a 
bit about the various pack / unpack opcodes.  Maybe ir_quadop_vector 
too, but we get rid of most of those.

> +   }
> +
> +   /**
>       * Return a string representing this expression's operator.
>       */
>      const char *operator_string();
>