Remove padding from direct convolution - OpenCL

- Refactor direct convolution for NHWC
- Remove old kernels for NHWC
- Change the heuristic in CLConvolutionLayer.cpp. The new direct
  convolution implementation is faster than FFT

Resolves COMPMID-3908

Change-Id: Iee15ce7b04e21847b6eaae5c6d3c1b18180e7efc
Signed-off-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4876
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
11 files changed
tree: 9c01379de63f6ab218c7890dc91b10ac8faac157
  1. .clang-format
  2. .clang-tidy
  3. .github/
  4. Android.bp
  5. LICENSE
  6. README.md
  7. SConscript
  8. SConstruct
  9. SECURITY.md
  10. arm_compute/
  11. data/
  12. docs/
  13. examples/
  14. include/
  15. scripts/
  16. src/
  17. support/
  18. tests/
  19. utils/
README.md

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