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authorMichele Di Giorgio <michele.digiorgio@arm.com>2018-07-06 10:17:33 +0100
committerAnthony Barbier <anthony.barbier@arm.com>2018-11-02 16:54:10 +0000
commitd304e80112e5d246b4bb884d1211eef9381bf034 (patch)
tree456943f81602b2df7ae9909d51a942dc3f15cc97 /src/core/CL/cl_kernels/activation_layer_qa8.cl
parentd93991e290618a685b67506c78090350e6aee43f (diff)
downloadComputeLibrary-d304e80112e5d246b4bb884d1211eef9381bf034.tar.gz
COMPMID-1349: Add support for QASYMM8 LOGISTIC activation in CLActivationLayer
Change-Id: Ibabce61cf5427de80078a6468023bed05f5e7c2c Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/139006 Tested-by: Jenkins <bsgcomp@arm.com> Reviewed-by: Anthony Barbier <anthony.barbier@arm.com> Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Diffstat (limited to 'src/core/CL/cl_kernels/activation_layer_qa8.cl')
-rw-r--r--src/core/CL/cl_kernels/activation_layer_qa8.cl13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/core/CL/cl_kernels/activation_layer_qa8.cl b/src/core/CL/cl_kernels/activation_layer_qa8.cl
index 66e54ed6ad..8f6a807613 100644
--- a/src/core/CL/cl_kernels/activation_layer_qa8.cl
+++ b/src/core/CL/cl_kernels/activation_layer_qa8.cl
@@ -24,7 +24,18 @@
#include "helpers.h"
#define TYPE VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE)
+#define VEC_FLOAT VEC_DATA_TYPE(float, VEC_SIZE)
+// Logistic Activation
+inline TYPE logistic_op(TYPE x)
+{
+ VEC_FLOAT x_flt = CONVERT(x, VEC_FLOAT);
+ x_flt = round(x_flt - (float)O1_VAL) * ((float)S1_VAL);
+ x_flt = 1.f / (1.f + exp(-x_flt));
+
+ const TYPE x_u8 = CONVERT_SAT(round(x_flt / ((float)S1_VAL)) + (float)O1_VAL, TYPE);
+ return x_u8;
+}
// RELU Activation
inline TYPE relu_op(TYPE x)
{
@@ -119,4 +130,4 @@ __kernel void activation_layer_qa8(
(data, 0, (__global DATA_TYPE *)output.ptr);
}
-#endif /* defined(ACT) */ \ No newline at end of file
+#endif /* defined(ACT) */