Enable kernel selection testing (Phase #1)

Change-Id: I1d65fb9d3a7583cf8d4163ca7c0fbee27dc52633
Signed-off-by: Yair Schwarzbaum <yair.schwarzbaum@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/6767
Reviewed-by: Giorgio Arena <giorgio.arena@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/cpu/kernels/CpuScaleKernel.cpp b/src/cpu/kernels/CpuScaleKernel.cpp
index 3063d8f..60564a9 100644
--- a/src/cpu/kernels/CpuScaleKernel.cpp
+++ b/src/cpu/kernels/CpuScaleKernel.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2021 Arm Limited.
+ * Copyright (c) 2016-2022 Arm Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -48,52 +48,37 @@
 {
 namespace
 {
-struct ScaleSelectorData
-{
-    DataType       dt;
-    const CPUInfo &ci;
-};
-using ScaleSelectorPtr = std::add_pointer<bool(const ScaleSelectorData &data)>::type;
-using ScaleKernelPtr   = std::add_pointer<void(const ITensor *, ITensor *, const ITensor *, const ITensor *, const ITensor *,
-                                               InterpolationPolicy, BorderMode, PixelValue, float, bool, const Window &)>::type;
-struct ScaleKernel
-{
-    const char            *name;
-    const ScaleSelectorPtr is_selected;
-    ScaleKernelPtr         ukernel;
-};
-
-static const ScaleKernel available_kernels[] =
+static const std::vector<CpuScaleKernel::ScaleKernel> available_kernels =
 {
 #if defined(ARM_COMPUTE_ENABLE_SVE)
     {
         "sve_fp16_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::F16 && data.ci.has_sve(); },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::F16 && data.isa.sve; },
         REGISTER_FP16_SVE(arm_compute::cpu::fp16_sve_scale)
     },
     {
         "sve_fp32_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::F32 && data.ci.has_sve(); },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::F32 && data.isa.sve; },
         REGISTER_FP32_SVE(arm_compute::cpu::fp32_sve_scale)
     },
     {
         "sve_qu8_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::QASYMM8 && data.ci.has_sve(); },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::QASYMM8 && data.isa.sve; },
         REGISTER_QASYMM8_SVE(arm_compute::cpu::qasymm8_sve_scale)
     },
     {
         "sve_qs8_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::QASYMM8_SIGNED && data.ci.has_sve(); },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::QASYMM8_SIGNED && data.isa.sve; },
         REGISTER_QASYMM8_SIGNED_SVE(arm_compute::cpu::qasymm8_signed_sve_scale)
     },
     {
         "sve_u8_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::U8 && data.ci.has_sve(); },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::U8 && data.isa.sve; },
         REGISTER_INTEGER_SVE(arm_compute::cpu::u8_sve_scale)
     },
     {
         "sve_s16_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::S16 && data.ci.has_sve(); },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::S16 && data.isa.sve; },
         REGISTER_INTEGER_SVE(arm_compute::cpu::s16_sve_scale)
     },
 #endif /* defined(ARM_COMPUTE_ENABLE_SVE) */
@@ -101,60 +86,43 @@
 #if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC)
     {
         "neon_fp16_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::F16 && data.ci.has_fp16(); },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::F16 && data.isa.fp16; },
         REGISTER_FP16_NEON(arm_compute::cpu::common_neon_scale<float16_t>)
     },
 #endif /* !defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) */
     {
         "neon_fp32_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::F32; },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::F32; },
         REGISTER_FP32_NEON(arm_compute::cpu::common_neon_scale<float>)
     },
     {
         "neon_qu8_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::QASYMM8; },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::QASYMM8; },
         REGISTER_QASYMM8_NEON(arm_compute::cpu::qasymm8_neon_scale)
     },
     {
         "neon_qs8_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::QASYMM8_SIGNED; },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::QASYMM8_SIGNED; },
         REGISTER_QASYMM8_SIGNED_NEON(arm_compute::cpu::qasymm8_signed_neon_scale)
     },
     {
         "neon_u8_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::U8; },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::U8; },
         REGISTER_INTEGER_NEON(arm_compute::cpu::u8_neon_scale)
     },
     {
         "neon_s16_scale",
-        [](const ScaleSelectorData & data) { return data.dt == DataType::S16; },
+        [](const DataTypeISASelectorData & data) { return data.dt == DataType::S16; },
         REGISTER_INTEGER_NEON(arm_compute::cpu::s16_neon_scale)
     },
 #endif /* defined(ARM_COMPUTE_ENABLE_NEON) */
 };
 
-/** Micro-kernel selector
- *
- * @param[in] data Selection data passed to help pick the appropriate micro-kernel
- *
- * @return A matching micro-kernel else nullptr
- */
-const ScaleKernel *get_implementation(const ScaleSelectorData &data)
-{
-    for(const auto &uk : available_kernels)
-    {
-        if(uk.is_selected(data))
-        {
-            return &uk;
-        }
-    }
-    return nullptr;
-}
-
 Status validate_arguments(const ITensorInfo *src, const ITensorInfo *dx, const ITensorInfo *dy,
                           const ITensorInfo *offsets, ITensorInfo *dst, const ScaleKernelInfo &info)
 {
-    const auto *uk = get_implementation(ScaleSelectorData{ src->data_type(), CPUInfo::get() });
+    const auto *uk = CpuScaleKernel::get_implementation(DataTypeISASelectorData{ src->data_type(), CPUInfo::get().get_isa() });
+
     ARM_COMPUTE_RETURN_ERROR_ON(uk == nullptr || uk->ukernel == nullptr);
 
     ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(dst);
@@ -212,7 +180,7 @@
                                                   dst,
                                                   info));
 
-    const auto *uk = get_implementation(ScaleSelectorData{ src->data_type(), CPUInfo::get() });
+    const auto *uk = CpuScaleKernel::get_implementation(DataTypeISASelectorData{ src->data_type(), CPUInfo::get().get_isa() });
     ARM_COMPUTE_ERROR_ON_NULLPTR(uk);
 
     _run_method = uk->ukernel;
@@ -618,6 +586,12 @@
 {
     return _name.c_str();
 }
+
+const std::vector<CpuScaleKernel::ScaleKernel> &CpuScaleKernel::get_available_kernels()
+{
+    return available_kernels;
+}
+
 } // namespace kernels
 } // namespace cpu
 } // namespace arm_compute