[Libclc-dev] [PATCH 3/3] Add half limits

[Tom Stellard]

On Mon, Jun 23, 2014 at 04:37:22PM +0100, Jeroen Ketema wrote:
> These are apparently only defined by OpenCL 1.2.
>

LGTM.
 
> I also tried adding HALF_MAX, HALF_MIN, and HALF_EPSILON. However, clang does
> not seem to support the ‘h’ suffix even with the cl_khr_fp16 extension enabled.

Is the `h' suffix something that is required to be supported by the OpenCL 2.0 spec?

-Tom

> ---
> generic/include/clc/float/definitions.h | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
> 
> diff --git a/generic/include/clc/float/definitions.h b/generic/include/clc/float/definitions.h
> index cd65324..6d532a5 100644
> --- a/generic/include/clc/float/definitions.h
> +++ b/generic/include/clc/float/definitions.h
> @@ -46,3 +46,18 @@
> #define M_PI            0x1.921fb54442d18p+1
> 
> #endif
> +
> +#ifdef cl_khr_fp16
> +
> +#if __OPENCL_VERSION__ >= CL_VERSION_1_2
> +
> +#define HALF_DIG        3
> +#define HALF_MANT_DIG   11
> +#define HALF_MAX_10_EXP +4
> +#define HALF_MAX_EXP    +16
> +#define HALF_MIN_10_EXP -4
> +#define HALF_MIN_EXP    -13
> +
> +#endif
> +
> +#endif
> -- 
> 1.8.5.2 (Apple Git-48)
> 
> 
> _______________________________________________
> Libclc-dev mailing list
> Libclc-dev at pcc.me.uk
> http://www.pcc.me.uk/cgi-bin/mailman/listinfo/libclc-dev