Remove Compute Vision Neon support

Resolves COMPMID-4150

Change-Id: I316e8ab97de796666c71eadfde894715fcf4a1aa
Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5141
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

3 files changed, 59 insertions, 63 deletions

diff --git a/docs/00_introduction.dox b/docs/00_introduction.dox
index 5c6b202139..3b340ebe5e 100644
--- a/docs/00_introduction.dox
+++ b/docs/00_introduction.dox
@@ -86,6 +86,50 @@ If there is more than one release in a month then an extra sequential number is
 
 @subsection S2_2_changelog Changelog
 
+v21.05 Public major release
+ - Removed computer vision support from Neon backend
+ - Removed the following functions:
+   - NEAbsoluteDifference
+   - NEAccumulate
+   - NEBox3x3
+   - NECannyEdge
+   - NEChannelCombine
+   - NEChannelExtract
+   - NEColorConvert
+   - NEDerivative
+   - NEDilate
+   - NEEqualizeHistogram
+   - NEErode
+   - NEFastCorners
+   - NEGaussian3x3
+   - NEGaussian5x5
+   - NEGaussianPyramid
+   - NEHOGDescriptor
+   - NEHOGDetector
+   - NEHOGGradient
+   - NEHOGMultiDetection
+   - NEHarrisCorners
+   - NEHistogram
+   - NEIntegralImage
+   - NELaplacianPyramid
+   - NELaplacianReconstruct
+   - NEMagnitude
+   - NEMeanStdDev
+   - NEMedian3x3
+   - NEMinMaxLocation
+   - NENonLinearFilter
+   - NEOpticalFlow
+   - NEPhase
+   - NERemap
+   - NEScharr3x3
+   - NESobel3x3
+   - NESobel5x5
+   - NESobel7x7
+   - NETableLookup
+   - NEThreshold
+   - NEWarpAffine
+   - NEWarpPerspective
+ 
 v21.02 Public major release
  - Various bug fixes.
  - Various optimisations.
@@ -169,7 +213,7 @@ v20.11 Public major release
  - Removed padding from Neon kernels:
    - @ref NEComplexPixelWiseMultiplicationKernel
    - @ref NENonMaximaSuppression3x3Kernel
-   - @ref NERemapKernel
+   - NERemapKernel
    - @ref NEGEMMInterleave4x4Kernel
    - @ref NEDirectConvolutionLayerKernel
    - @ref NEScaleKernel
@@ -462,7 +506,7 @@ v20.08 Public major release
  - Removed padding from:
    - @ref NEPixelWiseMultiplicationKernel
    - NEHeightConcatenateLayerKernel
-   - @ref NEThresholdKernel
+   - NEThresholdKernel
    - NEBatchConcatenateLayerKernel
    - @ref NETransposeKernel
    - @ref NEBatchNormalizationLayerKernel
@@ -490,7 +534,7 @@ v20.08 Public major release
    - NEGEMMLowpQuantizeDownInt32ToUint8Scale
    - NEGEMMMatrixAccumulateBiasesKernel
  - Deprecated functions / interfaces:
-   - Non-descriptor based interfaces for @ref NEThreshold, @ref CLThreshold
+   - Non-descriptor based interfaces for NEThreshold, @ref CLThreshold
    - Non-descriptor based interfaces for @ref NEScale, @ref CLScale and @ref GCScale
    - In @ref NESoftmaxLayer, @ref NELogSoftmaxLayer, @ref CLSoftmaxLayer, @ref CLLogSoftmaxLayer and @ref GCSoftmaxLayer :
       The default "axis" value for @ref CLSoftmaxLayer, @ref CLLogSoftmaxLayer and @ref GCSoftmaxLayer is changed from 1 to 0.
@@ -1270,13 +1314,13 @@ v17.04 Public bug fixes release
  -  @ref CLGaussianPyramidHorKernel
  -  @ref CLGaussianPyramidVertKernel
  -  @ref CLGradientKernel
- -  @ref NEChannelCombineKernel
+ -  NEChannelCombineKernel
  -  @ref NEFillArrayKernel
- -  @ref NEGaussianPyramidHorKernel
- -  @ref NEGaussianPyramidVertKernel
+ -  NEGaussianPyramidHorKernel
+ -  NEGaussianPyramidVertKernel
  -  NEHarrisScoreFP16Kernel
- -  @ref NEHarrisScoreKernel
- -  @ref NEHOGDetectorKernel
+ -  NEHarrisScoreKernel
+ -  NEHOGDetectorKernel
  -  NELogits1DMaxKernel
  -  NELogits1DShiftExpSumKernel
  -  NELogits1DNormKernel
@@ -1321,8 +1365,8 @@ v17.02.1 Sources preview
    - @ref CLMinMaxKernel, @ref CLMinMaxLocationKernel / @ref CLMinMaxLocation
    - @ref CLNonLinearFilterKernel / @ref CLNonLinearFilter
  - New Neon FP16 kernels (Requires armv8.2 CPU)
-   - @ref NEAccumulateWeightedFP16Kernel
-   - @ref NEBox3x3FP16Kernel
+   - NEAccumulateWeightedFP16Kernel
+   - NEBox3x3FP16Kernel
    - @ref NENonMaximaSuppression3x3FP16Kernel
 
 v17.02 Sources preview
@@ -1333,8 +1377,8 @@ v17.02 Sources preview
    - @ref CLFastCornersKernel / @ref CLFastCorners
    - @ref CLMeanStdDevKernel / @ref CLMeanStdDev
  - New Neon kernels / functions:
-   - HOG / SVM: @ref NEHOGOrientationBinningKernel, @ref NEHOGBlockNormalizationKernel, @ref NEHOGDetectorKernel, NEHOGNonMaximaSuppressionKernel / @ref NEHOGDescriptor, @ref NEHOGDetector, @ref NEHOGGradient, @ref NEHOGMultiDetection
-   - @ref NENonLinearFilterKernel / @ref NENonLinearFilter
+   - HOG / SVM: NEHOGOrientationBinningKernel, NEHOGBlockNormalizationKernel, NEHOGDetectorKernel, NEHOGNonMaximaSuppressionKernel / NEHOGDescriptor, NEHOGDetector, NEHOGGradient, NEHOGMultiDetection
+   - NENonLinearFilterKernel / NENonLinearFilter
  - Introduced a CLScheduler to manage the default context and command queue used by the runtime library and create synchronisation events.
  - Switched all the kernels / functions to use tensors instead of images.
  - Updated documentation to include instructions to build the library from sources.
diff --git a/docs/01_library.dox b/docs/01_library.dox
index 848b060e9f..641fc3e11b 100644
--- a/docs/01_library.dox
+++ b/docs/01_library.dox
@@ -185,13 +185,13 @@ This is a very basic implementation which was originally used in the Neon runtim
 
 @sa CPPScheduler
 
-@note Some kernels like for example @ref NEHistogramKernel need some local temporary buffer to perform their calculations. In order to avoid memory corruption between threads, the local buffer must be of size: ```memory_needed_per_thread * num_threads``` and a unique thread_id between 0 and num_threads must be assigned to the @ref ThreadInfo object passed to the ```run``` function.
+@note Some kernels need some local temporary buffer to perform their calculations. In order to avoid memory corruption between threads, the local buffer must be of size: ```memory_needed_per_thread * num_threads``` and a unique thread_id between 0 and num_threads must be assigned to the @ref ThreadInfo object passed to the ```run``` function.
 
 @subsection S4_2_4 Functions
 
 Functions will automatically allocate the temporary buffers mentioned above, and will automatically multi-thread kernels' executions using the very basic scheduler described in the previous section.
 
-Simple functions only call a single kernel (e.g @ref NEConvolution3x3), while more complex ones consist of several kernels pipelined together (e.g @ref NEGaussianPyramid, @ref NEHarrisCorners). Check their documentation to find out which kernels are used by each function.
+Simple functions only call a single kernel (e.g @ref NEConvolution3x3), while more complex ones consist of several kernels pipelined together (e.g @ref NEFullyConnectedLayer ). Check their documentation to find out which kernels are used by each function.
 
 @code{.cpp}
 //Create a function object:
@@ -230,11 +230,7 @@ For example:
 
 @subsection S4_4_2_cl_neon OpenCL / Neon interoperability
 
-You can mix OpenCL and Neon kernels and functions. However it is the user's responsibility to handle the mapping/unmapping of OpenCL objects, for example:
-
-@snippet neoncl_scale_median_gaussian.cpp Neon / OpenCL Interop
-
-@sa main_neoncl_scale_median_gaussian
+You can mix OpenCL and Neon kernels and functions. However it is the user's responsibility to handle the mapping/unmapping of OpenCL objects.
 
 @section S4_5_algorithms Algorithms
 
diff --git a/docs/06_functions_list.dox b/docs/06_functions_list.dox
index 96dce94a89..19485a8ac1 100644
--- a/docs/06_functions_list.dox
+++ b/docs/06_functions_list.dox
@@ -33,58 +33,39 @@ namespace arm_compute
 
 - @ref IFunction
     - @ref INESimpleFunction
-        - @ref NEAbsoluteDifference
         - @ref NEArithmeticAddition
         - @ref NEArithmeticSubtraction
         - @ref NEBoundingBoxTransform
-        - @ref NEBox3x3
         - @ref NECast
         - @ref NEComplexPixelWiseMultiplication
         - @ref NEConvolution3x3
         - @ref NEConvolutionRectangle
-        - @ref NEDilate
         - @ref NEElementwiseComparison
         - @ref NEElementwiseComparisonStatic
         - @ref NEElementwiseDivision
         - @ref NEElementwiseMax
         - @ref NEElementwiseMin
         - @ref NEElementwiseSquaredDiff
-        - @ref NEErode
         - @ref NEExpLayer
-        - @ref NEGaussian3x3
-        - @ref NEIntegralImage
         - @ref NELogicalAnd
         - @ref NELogicalNot
         - @ref NELogicalOr
-        - @ref NEMedian3x3
-        - @ref NENonLinearFilter
         - @ref NENonMaximaSuppression3x3
         - @ref NEPixelWiseMultiplication
         - @ref NEPReluLayer
-        - @ref NERemap
         - @ref NEROIAlignLayer
         - @ref NERoundLayer
         - @ref NERsqrtLayer
-        - @ref NEScharr3x3
         - @ref NESelect
-        - @ref NESobel3x3
         - @ref NEStridedSlice
-        - @ref NEWarpAffine
-        - @ref NEWarpPerspective
     - @ref INESimpleFunctionNoBorder
-        - @ref NEAccumulate
-        - @ref NEAccumulateSquared
-        - @ref NEAccumulateWeighted
         - @ref NEActivationLayer
         - @ref NEBatchToSpaceLayer
         - @ref NEBitwiseAnd
         - @ref NEBitwiseNot
         - @ref NEBitwiseOr
         - @ref NEBitwiseXor
-        - @ref NEChannelCombine
-        - @ref NEChannelExtract
         - @ref NEChannelShuffleLayer
-        - @ref NEColorConvert
         - @ref NECopy
         - @ref NEDepthConvertLayer
         - @ref NEFlattenLayer
@@ -93,23 +74,17 @@ namespace arm_compute
         - @ref NEGather
         - @ref NEGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint
         - @ref NEGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint
-        - @ref NEHOGDetector
-        - @ref NEMagnitude
         - @ref NEMeanStdDevNormalizationLayer
         - @ref NEPermute
-        - @ref NEPhase
         - @ref NEPriorBoxLayer
         - @ref NEReorgLayer
         - @ref NEReshapeLayer
         - @ref NEReverse
         - @ref NESlice
-        - @ref NETableLookup
-        - @ref NEThreshold
         - @ref NETile
         - @ref NETranspose
     - @ref NEArgMinMaxLayer
     - @ref NEBatchNormalizationLayer
-    - @ref NECannyEdge
     - @ref NEComplexPixelWiseMultiplication
     - @ref NEConcatenateLayer
     - @ref NEConvertFullyConnectedWeights
@@ -121,11 +96,8 @@ namespace arm_compute
     - @ref NEDepthwiseConvolutionAssemblyDispatch
     - @ref NEDepthwiseConvolutionLayer
     - @ref NEDequantizationLayer
-    - @ref NEDerivative
     - @ref NEDetectionPostProcessLayer
     - @ref NEDirectConvolutionLayer
-    - @ref NEEqualizeHistogram
-    - @ref NEFastCorners
     - @ref NEFFT1D
     - @ref NEFFT2D
     - @ref NEFFTConvolutionLayer
@@ -133,33 +105,19 @@ namespace arm_compute
     - @ref NEFillBorder
     - @ref NEFullyConnectedLayer
     - @ref NEFuseBatchNormalization
-    - @ref NEGaussian5x5
-    - @ref NEGaussianPyramid
-        - @ref NEGaussianPyramidHalf
-        - @ref NEGaussianPyramidOrb
     - @ref NEGEMM
     - @ref NEGEMMAssemblyDispatch
     - @ref NEGEMMConv2d
     - @ref NEGEMMConvolutionLayer
     - @ref NEGEMMLowpMatrixMultiplyCore
     - @ref NEGenerateProposalsLayer
-    - @ref NEHarrisCorners
-    - @ref NEHistogram
-    - @ref NEHOGDescriptor
-    - @ref NEHOGGradient
-    - @ref NEHOGMultiDetection
     - @ref NEInstanceNormalizationLayer
     - @ref NEL2NormalizeLayer
-    - @ref NELaplacianPyramid
-    - @ref NELaplacianReconstruct
     - @ref NELSTMLayer
     - @ref NELSTMLayerQuantized
     - @ref NEQLSTMLayer
     - @ref NEMaxUnpoolingLayer
-    - @ref NEMeanStdDev
-    - @ref NEMinMaxLocation
     - @ref NENormalizationLayer
-    - @ref NEOpticalFlow
     - @ref NEPadLayer
     - @ref NEPoolingLayer
     - @ref NEQuantizationLayer
@@ -169,8 +127,6 @@ namespace arm_compute
     - @ref NERNNLayer
     - @ref NEROIPoolingLayer
     - @ref NEScale
-    - @ref NESobel5x5
-    - @ref NESobel7x7
     - @ref NESoftmaxLayerGeneric <IS_LOG>
     - @ref NESpaceToBatchLayer
     - @ref NESpaceToDepthLayer