[Beignet] [PATCH] libocl: remove useless code.

[Zhigang Gong]

LGTM, will push latter, thanks.

On Tue, Jan 06, 2015 at 10:51:19AM +0800, Ruiling Song wrote:
> These kind of logic already handled by atan2().
> 
> Signed-off-by: Ruiling Song <ruiling.song at intel.com>
> ---
>  backend/src/libocl/tmpl/ocl_math.tmpl.cl |   57 ------------------------------
>  1 file changed, 57 deletions(-)
> 
> diff --git a/backend/src/libocl/tmpl/ocl_math.tmpl.cl b/backend/src/libocl/tmpl/ocl_math.tmpl.cl
> index 321d469..3f296e7 100644
> --- a/backend/src/libocl/tmpl/ocl_math.tmpl.cl
> +++ b/backend/src/libocl/tmpl/ocl_math.tmpl.cl
> @@ -1858,63 +1858,6 @@ OVERLOADABLE float __gen_ocl_internal_atan2(float y, float x) {
>  }
>  
>  OVERLOADABLE float __gen_ocl_internal_atan2pi(float y, float x) {
> -  uint ix = as_uint(x), iy = as_uint(y),
> -       pos_zero = 0, neg_zero = 0x80000000u,
> -       pos_inf = 0x7f800000, neg_inf = 0xff800000u;
> -  if(iy == pos_zero) {
> -    if(ix == pos_zero)
> -      return 0;
> -    if(ix == neg_zero)
> -      return 1;
> -    if(x < 0)
> -      return 1;
> -    if(x > 0)
> -      return 0;
> -  }
> -  if(iy == neg_zero) {
> -    if(ix == pos_zero)
> -      return -0.f;
> -    if(ix == neg_zero)
> -      return -1;
> -    if(x < 0)
> -      return -1;
> -    if(x > 0)
> -      return -0.f;
> -  }
> -  if((ix & 0x7fffffff) == 0) {
> -    if(y < 0)
> -      return -.5f;
> -    if(y > 0)
> -      return .5f;
> -  }
> -  if(ix == pos_inf) {
> -    if(y > 0 && iy != pos_inf)
> -      return 0;
> -    if(y < 0 && iy != neg_inf)
> -      return -0.f;
> -  }
> -  if(ix == neg_inf) {
> -    if(y > 0 && iy != pos_inf)
> -      return 1;
> -    if(y < 0 && iy != neg_inf)
> -      return -1;
> -  }
> -  if(iy == pos_inf) {
> -    if(ix == pos_inf)
> -      return 0.25f;
> -    if(ix == neg_inf)
> -      return 0.75f;
> -    if(x >= 0 || x <= 0)
> -      return 0.5f;
> -  }
> -  if(iy == neg_inf) {
> -    if(ix == pos_inf)
> -      return -0.25f;
> -    if(ix == neg_inf)
> -      return -0.75f;
> -    if(x >= 0 || x <= 0)
> -      return -0.5f;
> -  }
>    return __gen_ocl_internal_atan2(y, x) / M_PI_F;
>  }
>  OVERLOADABLE float __gen_ocl_internal_fabs(float x)  { return __gen_ocl_fabs(x); }
> -- 
> 1.7.10.4
> 
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