Fix TILE initialization in direct convolution and winograd transforms

- The array initializer for the TILE object cannot always be utilized and so we
  do require to manually initialize the TILE with the LOOP_UNROLLING macro

- Resolves COMPMID-4371

Change-Id: I2598354b9fae84c5e3bd11219fffdcdc297215e1
Signed-off-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5417
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/core/CL/cl_kernels/direct_convolution.cl b/src/core/CL/cl_kernels/direct_convolution.cl
index 220179effb..a9a997f9ac 100644
--- a/src/core/CL/cl_kernels/direct_convolution.cl
+++ b/src/core/CL/cl_kernels/direct_convolution.cl
@@ -150,7 +150,12 @@ __kernel void direct_convolution_nhwc(
     }
 
     // Initialize the accumulators
-    TILE(ACC_DATA_TYPE, M0, N0, c) = { { { 0 } } };
+    TILE(ACC_DATA_TYPE, M0, N0, c);
+
+    LOOP_UNROLLING(int, i, 0, M0, 1)
+    {
+        c[i].v = 0;
+    }
 
     for(int i = 0; i < (_IWEI_WIDTH * _IWEI_HEIGHT); ++i)
     {