[Mesa-dev] [PATCH 1/2] glsl: handle conversions to double when comparing param matches

[Ian Romanick]

This seems believable... is there a piglit test?

On 06/17/2015 12:15 PM, Ilia Mirkin wrote:
> This allows mod(int, int) to become selected as float mod when doubles
> are supported.
> 
> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
> Cc: "10.6" <mesa-stable at lists.freedesktop.org>
> ---
>  src/glsl/ir_function.cpp | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/src/glsl/ir_function.cpp b/src/glsl/ir_function.cpp
> index 2b2643c..1319443 100644
> --- a/src/glsl/ir_function.cpp
> +++ b/src/glsl/ir_function.cpp
> @@ -148,9 +148,11 @@ get_parameter_match_type(const ir_variable *param,
>     if (from_type == to_type)
>        return PARAMETER_EXACT_MATCH;
>  
> -   /* XXX: When ARB_gpu_shader_fp64 support is added, check for float->double,
> -    * and int/uint->double conversions
> -    */
> +   if (to_type->base_type == GLSL_TYPE_DOUBLE) {
> +      if (from_type->base_type == GLSL_TYPE_FLOAT)
> +         return PARAMETER_FLOAT_TO_DOUBLE;
> +      return PARAMETER_INT_TO_DOUBLE;
> +   }
>  
>     if (to_type->base_type == GLSL_TYPE_FLOAT)
>        return PARAMETER_INT_TO_FLOAT;
>