Jan Vesely 70a270da5f Add initial support for half precision builtins
v2: fix fmax implementation
    use consistent checks for __CLC_FP_SIZE
    add missing TODOs
    fix whitespace in definitions.h
v3: undef ZERO in modf.inc

Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
reviewer: Jeroen Ketema <j.ketema@xs4all.nl>
Reviewed-by: Aaron Watry <awatry@gmail.com>
Tested-by: Aaron Watry <awatry@gmail.com>
llvm-svn: 332677
2018-05-17 22:55:30 +00:00

28 lines
632 B
Common Lisp

#include <clc/clc.h>
#include "../clcmacro.h"
_CLC_DEFINE_BINARY_BUILTIN(float, copysign, __builtin_copysignf, float, float)
#ifdef cl_khr_fp64
#pragma OPENCL EXTENSION cl_khr_fp64 : enable
_CLC_DEFINE_BINARY_BUILTIN(double, copysign, __builtin_copysign, double, double)
#endif
#ifdef cl_khr_fp16
#pragma OPENCL EXTENSION cl_khr_fp16 : enable
_CLC_DEF _CLC_OVERLOAD half copysign(half x, half y)
{
ushort sign_x = as_ushort(x) & 0x8000u;
ushort unsigned_y = as_ushort(y) & 0x7ffffu;
return as_half((ushort)(sign_x | unsigned_y));
}
_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, half, copysign, half, half)
#endif