commit 1d08a310b7316f2b731e60ac36dc68989d15b546
author Georgios Pinitas <georgios.pinitas@arm.com> Wed Jan 03 12:29:22 2018 +0000
committer Anthony Barbier <anthony.barbier@arm.com> Fri Nov 02 16:42:33 2018 +0000
tree 2fe747eb22a5a094bbcef8f7519eef9d4b6172db
parent 2c350181118ec9eca864432c5bd78a0cfc3ebc32

COMPMID-765: Collapse execution window in CL kernels.

Updated following kernels to collapse their execution window and reduce
number of kernel enqueues:
-CLArithmeticAddition
-CLArithmeticSubtraction
-CLPixelWiseMultiplication

Change-Id: I13d503515a20fa9be1401ead1e27e9bbc6627975
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/114878
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Anthony Barbier <anthony.barbier@arm.com>

src/core/CL/kernels/CLArithmeticSubtractionKernel.cpp

diff --git a/src/core/CL/kernels/CLArithmeticSubtractionKernel.cpp b/src/core/CL/kernels/CLArithmeticSubtractionKernel.cpp
index cc2ef1f..8308aa0 100644
--- a/src/core/CL/kernels/CLArithmeticSubtractionKernel.cpp
+++ b/src/core/CL/kernels/CLArithmeticSubtractionKernel.cpp
@@ -146,15 +146,16 @@
     ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
     ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICLKernel::window(), window);
 
-    Window slice = window.first_slice_window_2D();
+    Window collapsed = window.collapse_if_possible(ICLKernel::window(), Window::DimZ);
+    Window slice     = collapsed.first_slice_window_3D();
 
     do
     {
         unsigned int idx = 0;
-        add_2D_tensor_argument(idx, _input1, slice);
-        add_2D_tensor_argument(idx, _input2, slice);
-        add_2D_tensor_argument(idx, _output, slice);
+        add_3D_tensor_argument(idx, _input1, slice);
+        add_3D_tensor_argument(idx, _input2, slice);
+        add_3D_tensor_argument(idx, _output, slice);
         enqueue(queue, *this, slice);
     }
-    while(window.slide_window_slice_2D(slice));
+    while(collapsed.slide_window_slice_3D(slice));
 }