diff options
| author | rander <rander.wang@intel.com> | 2017-03-31 11:07:02 +0800 |
|---|---|---|
| committer | Yang Rong <rong.r.yang@intel.com> | 2017-04-17 16:08:49 +0800 |
| commit | 06ed1ee4e238912a1b8f8c2e87c92875efa40c07 (patch) | |
| tree | e2a613984170b5f46f0df3b892c6c5d4c71ee039 | |
| parent | 573153abb2cd0a25215ca68b1816eee5e13fb440 (diff) | |
backend: add double version of pown
convert pown to pow, pass the cft. And also there are some
optimizations can be done, do it later
Signed-off-by: rander <rander.wang@intel.com>
Tested-by: Yang Rong <rong.r.yang@intel.com>
| -rw-r--r-- | backend/src/libocl/tmpl/ocl_math_common.tmpl.cl | 18 | ||||
| -rw-r--r-- | backend/src/libocl/tmpl/ocl_math_common.tmpl.h | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/backend/src/libocl/tmpl/ocl_math_common.tmpl.cl b/backend/src/libocl/tmpl/ocl_math_common.tmpl.cl index dc6306c6..d55b972d 100644 --- a/backend/src/libocl/tmpl/ocl_math_common.tmpl.cl +++ b/backend/src/libocl/tmpl/ocl_math_common.tmpl.cl @@ -2348,6 +2348,24 @@ OVERLOADABLE double pow(double x, double y) return __ocl_internal_pow(x, y); } +OVERLOADABLE double pown(double x, int n) +{ + int hx,hy,ix,iy; + unsigned lx,ly; + + hx = __HI(x); lx = __LO(x); + ix = hx&0x7fffffff; + + /* y==zero: x**0 = 1 */ + if(n ==0) return 1.0; + + /* +-NaN return x+y */ + if(ix > 0x7ff00000 || ((ix==0x7ff00000)&&(lx!=0))) + return x+n; + + return __ocl_internal_pow(x, n); +} + OVERLOADABLE double remainder(double x, double p) { int hx,hp; diff --git a/backend/src/libocl/tmpl/ocl_math_common.tmpl.h b/backend/src/libocl/tmpl/ocl_math_common.tmpl.h index 9a75d00a..f5fa2897 100644 --- a/backend/src/libocl/tmpl/ocl_math_common.tmpl.h +++ b/backend/src/libocl/tmpl/ocl_math_common.tmpl.h @@ -58,6 +58,7 @@ OVERLOADABLE double mad(double a, double b, double c); OVERLOADABLE double nan(ulong code); OVERLOADABLE double nextafter(double x, double y); OVERLOADABLE double pow(double x, double y); +OVERLOADABLE double pown(double x, int n); OVERLOADABLE double remainder(double x, double p); OVERLOADABLE double rint(double x); OVERLOADABLE double round(double x); |