[Pocl-devel] #ifdef cl_khr_fp64

[Erik S. <esc...@pe...>]

The current way we handle cl_khr_fp64 and cl_khr_int64 leads to much
code duplication. One alternative would be to define two macros

__IFDBL(x)
__IFLNG(x)

that expand to their arguments if double and long are supported,
respectively, and expand to nothing otherwise.

#ifdef cl_khr_fp64
#  define __IFDBL(x) x
#else
#  define __IFDBL(x)
#endif

We would surround every line in _kernel.h that uses double or long
with the respective macro. This would look like

#define _CL_DECLARE_FUNC_V_V(NAME)                      \
          float    _cl_overloadable NAME(float   );     \
          float2   _cl_overloadable NAME(float2  );     \
  __IFDBL(double   _cl_overloadable NAME(double  );)    \
  __IFDBL(double2  _cl_overloadable NAME(double2 );)

Does this sound like a good idea?

-erik

-- 
Erik Schnetter <esc...@pe...>
http://www.cct.lsu.edu/~eschnett/
AIM: eschnett247, Skype: eschnett, Google Talk: sch...@gm...