GBE/libocl: fix a regression after libocl change.

Signed-off-by: Zhigang Gong <zhigang.gong@intel.com>
Reviewed-by: He Junyan <junyan.he@inbox.com>

diff --git a/backend/src/libocl/tmpl/ocl_math.tmpl.cl b/backend/src/libocl/tmpl/ocl_math.tmpl.cl
index c397ca2..f61d107 100644 (file)
--- a/backend/src/libocl/tmpl/ocl_math.tmpl.cl
+++ b/backend/src/libocl/tmpl/ocl_math.tmpl.cl
@@ -3204,9 +3204,6 @@ OVERLOADABLE float pown(float x, int n) {
 }
 
 OVERLOADABLE float rootn(float x, int n) {
-  if (__ocl_math_fastpath_flag)
-    return __gen_ocl_internal_fastpath_rootn(x, n);
-
   float ax,re;
   int sign = 0;
   if( n == 0 )return NAN;
@@ -3233,7 +3230,10 @@ OVERLOADABLE float rootn(float x, int n) {
   ax = __gen_ocl_fabs(x);
   if(x <0.0f && (n&1))
     sign = 1;
-  re = __gen_ocl_internal_pow(ax,1.f/n);
+  if (__ocl_math_fastpath_flag)
+    re = __gen_ocl_pow(ax, 1.f/n);
+  else
+    re = __gen_ocl_internal_pow(ax,1.f/n);
   if(sign)
     re = -re;
   return re;