blob: 0f762ba0417f8cf2478be355b8c9f00e072c44e8 [file] [log] [blame]
/*
* Copyright (c) 2021, 2023 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "src/cpu/kernels/CpuTransposeKernel.h"
#include "arm_compute/core/Error.h"
#include "arm_compute/core/Helpers.h"
#include "arm_compute/core/ITensor.h"
#include "arm_compute/core/TensorInfo.h"
#include "arm_compute/core/Types.h"
#include "arm_compute/core/utils/misc/ShapeCalculator.h"
#include "arm_compute/core/Validate.h"
#include "src/core/helpers/AutoConfiguration.h"
#include "src/core/helpers/WindowHelpers.h"
#include <arm_neon.h>
namespace arm_compute
{
namespace cpu
{
namespace kernels
{
namespace
{
unsigned int num_elems_processed(size_t element_size)
{
switch (element_size)
{
case 1:
return 8;
case 2:
return 4;
case 4:
#ifdef __aarch64__
return 8;
#else // __aarch64__
return 4;
#endif // __aarch64__
default:
break;
}
ARM_COMPUTE_ERROR("Element size not supported");
}
void transpose_8bit_elements(const ITensor *in, ITensor *out, const Window &window)
{
const int window_step_x = 8;
const int window_step_y = 8;
const int window_start_x = window.x().start();
const int window_end_x = window.x().end();
const int window_start_y = window.y().start();
const int window_end_y = std::min(window.y().end(), static_cast<int>(in->info()->dimension(1)));
const int window_end_y_multiple_of = ((window_end_y - window_start_y) / window_step_y) * window_step_y;
const size_t input_stride_in_bytes = in->info()->strides_in_bytes()[1];
const size_t output_stride_in_bytes = out->info()->strides_in_bytes()[1];
// Check if we need a left-over loop for the y dimension
bool left_over_loop_y = (((window_end_y - window_start_y) % window_step_y) != 0);
Window window_in(window);
window_in.set(Window::DimX, Window::Dimension(0, 1, 1));
if (left_over_loop_y)
{
// Check if window_end_y_multiple_of is greater than window_start_y
if (window_end_y_multiple_of > window_start_y)
{
window_in.set(Window::DimY, Window::Dimension(window_start_y, window_end_y_multiple_of, window_step_y));
}
else
{
window_in.set(Window::DimY, Window::Dimension(0, 0, 1));
}
}
Window window_out(window);
window_out.set(Window::DimX, Window::Dimension(0, 0, 0));
window_out.set(Window::DimY, Window::Dimension(0, 0, 0));
Iterator output(out, window_out);
// Run the SIMD path if and only if the input is not a row-vector
if (in->info()->dimension(1) != 1)
{
Iterator input(in, window_in);
execute_window_loop(
window_in,
[&](const Coordinates &id)
{
// Compute 8x8 elements per iteration
int x = window_start_x;
for (; x <= (window_end_x - window_step_x); x += window_step_x)
{
const uint8x8_t row0 =
vld1_u8(reinterpret_cast<const uint8_t *>(input.ptr() + x + 0 * input_stride_in_bytes));
const uint8x8_t row1 =
vld1_u8(reinterpret_cast<const uint8_t *>(input.ptr() + x + 1 * input_stride_in_bytes));
const uint8x8_t row2 =
vld1_u8(reinterpret_cast<const uint8_t *>(input.ptr() + x + 2 * input_stride_in_bytes));
const uint8x8_t row3 =
vld1_u8(reinterpret_cast<const uint8_t *>(input.ptr() + x + 3 * input_stride_in_bytes));
const uint8x8_t row4 =
vld1_u8(reinterpret_cast<const uint8_t *>(input.ptr() + x + 4 * input_stride_in_bytes));
const uint8x8_t row5 =
vld1_u8(reinterpret_cast<const uint8_t *>(input.ptr() + x + 5 * input_stride_in_bytes));
const uint8x8_t row6 =
vld1_u8(reinterpret_cast<const uint8_t *>(input.ptr() + x + 6 * input_stride_in_bytes));
const uint8x8_t row7 =
vld1_u8(reinterpret_cast<const uint8_t *>(input.ptr() + x + 7 * input_stride_in_bytes));
// Transpose 2x2
const uint8x8x2_t k0_u8 = vtrn_u8(row0, row1);
const uint8x8x2_t k1_u8 = vtrn_u8(row2, row3);
const uint8x8x2_t k2_u8 = vtrn_u8(row4, row5);
const uint8x8x2_t k3_u8 = vtrn_u8(row6, row7);
// Transpose 4x4
const uint16x4x2_t k0_u16 =
vtrn_u16(vreinterpret_u16_u8(k0_u8.val[0]), vreinterpret_u16_u8(k1_u8.val[0]));
const uint16x4x2_t k1_u16 =
vtrn_u16(vreinterpret_u16_u8(k0_u8.val[1]), vreinterpret_u16_u8(k1_u8.val[1]));
const uint16x4x2_t k2_u16 =
vtrn_u16(vreinterpret_u16_u8(k2_u8.val[0]), vreinterpret_u16_u8(k3_u8.val[0]));
const uint16x4x2_t k3_u16 =
vtrn_u16(vreinterpret_u16_u8(k2_u8.val[1]), vreinterpret_u16_u8(k3_u8.val[1]));
// Transpose 8x8
const uint32x2x2_t k0_u32 =
vtrn_u32(vreinterpret_u32_u16(k0_u16.val[0]), vreinterpret_u32_u16(k2_u16.val[0]));
const uint32x2x2_t k1_u32 =
vtrn_u32(vreinterpret_u32_u16(k0_u16.val[1]), vreinterpret_u32_u16(k2_u16.val[1]));
const uint32x2x2_t k2_u32 =
vtrn_u32(vreinterpret_u32_u16(k1_u16.val[0]), vreinterpret_u32_u16(k3_u16.val[0]));
const uint32x2x2_t k3_u32 =
vtrn_u32(vreinterpret_u32_u16(k1_u16.val[1]), vreinterpret_u32_u16(k3_u16.val[1]));
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint8_t) + x * output_stride_in_bytes;
vst1_u8(
reinterpret_cast<uint8_t *>(output.ptr() + dst_offset_in_bytes + 0 * output_stride_in_bytes),
vreinterpret_u8_u16(vreinterpret_u16_u32(k0_u32.val[0])));
vst1_u8(
reinterpret_cast<uint8_t *>(output.ptr() + dst_offset_in_bytes + 1 * output_stride_in_bytes),
vreinterpret_u8_u16(vreinterpret_u16_u32(k2_u32.val[0])));
vst1_u8(
reinterpret_cast<uint8_t *>(output.ptr() + dst_offset_in_bytes + 2 * output_stride_in_bytes),
vreinterpret_u8_u16(vreinterpret_u16_u32(k1_u32.val[0])));
vst1_u8(
reinterpret_cast<uint8_t *>(output.ptr() + dst_offset_in_bytes + 3 * output_stride_in_bytes),
vreinterpret_u8_u16(vreinterpret_u16_u32(k3_u32.val[0])));
vst1_u8(
reinterpret_cast<uint8_t *>(output.ptr() + dst_offset_in_bytes + 4 * output_stride_in_bytes),
vreinterpret_u8_u16(vreinterpret_u16_u32(k0_u32.val[1])));
vst1_u8(
reinterpret_cast<uint8_t *>(output.ptr() + dst_offset_in_bytes + 5 * output_stride_in_bytes),
vreinterpret_u8_u16(vreinterpret_u16_u32(k2_u32.val[1])));
vst1_u8(
reinterpret_cast<uint8_t *>(output.ptr() + dst_offset_in_bytes + 6 * output_stride_in_bytes),
vreinterpret_u8_u16(vreinterpret_u16_u32(k1_u32.val[1])));
vst1_u8(
reinterpret_cast<uint8_t *>(output.ptr() + dst_offset_in_bytes + 7 * output_stride_in_bytes),
vreinterpret_u8_u16(vreinterpret_u16_u32(k3_u32.val[1])));
}
// Compute left-over elements along the x dimension (1x8)
for (; x < window_end_x; ++x)
{
const uint8_t val0 = *(input.ptr() + x + 0 * input_stride_in_bytes);
const uint8_t val1 = *(input.ptr() + x + 1 * input_stride_in_bytes);
const uint8_t val2 = *(input.ptr() + x + 2 * input_stride_in_bytes);
const uint8_t val3 = *(input.ptr() + x + 3 * input_stride_in_bytes);
const uint8_t val4 = *(input.ptr() + x + 4 * input_stride_in_bytes);
const uint8_t val5 = *(input.ptr() + x + 5 * input_stride_in_bytes);
const uint8_t val6 = *(input.ptr() + x + 6 * input_stride_in_bytes);
const uint8_t val7 = *(input.ptr() + x + 7 * input_stride_in_bytes);
uint8x8_t result = vdup_n_u8(0);
result = vset_lane_u8(val0, result, 0);
result = vset_lane_u8(val1, result, 1);
result = vset_lane_u8(val2, result, 2);
result = vset_lane_u8(val3, result, 3);
result = vset_lane_u8(val4, result, 4);
result = vset_lane_u8(val5, result, 5);
result = vset_lane_u8(val6, result, 6);
result = vset_lane_u8(val7, result, 7);
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint8_t) + x * output_stride_in_bytes;
vst1_u8(output.ptr() + dst_offset_in_bytes, result);
}
},
input, output);
}
if (left_over_loop_y)
{
window_in.set(Window::DimX, Window::Dimension(window.x().start(), window.x().end(), 1));
window_in.set(Window::DimY, Window::Dimension(window_end_y_multiple_of, window_end_y, 1));
Iterator input(in, window_in);
Iterator output(out, window_out);
// Compute left-over elements along the y dimension (1x1)
execute_window_loop(
window_in,
[&](const Coordinates &id)
{
const uint8_t val0 = *input.ptr();
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint8_t) + id.x() * output_stride_in_bytes;
*(output.ptr() + dst_offset_in_bytes) = val0;
},
input, output);
}
}
void transpose_16bit_elements(const ITensor *in, ITensor *out, const Window &window)
{
const int window_step_x = 4;
const int window_step_y = 4;
const int window_start_x = window.x().start();
const int window_end_x = window.x().end();
const int window_start_y = window.y().start();
const int window_end_y = std::min(window.y().end(), static_cast<int>(in->info()->dimension(1)));
const int window_end_y_multiple_of = ((window_end_y - window_start_y) / window_step_y) * window_step_y;
const size_t input_stride_in_bytes = in->info()->strides_in_bytes()[1];
const size_t output_stride_in_bytes = out->info()->strides_in_bytes()[1];
// Check if we need a left-over loop for the y dimension
bool left_over_loop_y = (((window_end_y - window_start_y) % window_step_y) != 0);
Window window_in(window);
window_in.set(Window::DimX, Window::Dimension(0, 1, 1));
if (left_over_loop_y)
{
// Check if window_end_y_multiple_of is greater than window_start_y
if (window_end_y_multiple_of > window_start_y)
{
window_in.set(Window::DimY, Window::Dimension(window_start_y, window_end_y_multiple_of, window_step_y));
}
else
{
window_in.set(Window::DimY, Window::Dimension(0, 0, 1));
}
}
Window window_out(window);
window_out.set(Window::DimX, Window::Dimension(0, 0, 0));
window_out.set(Window::DimY, Window::Dimension(0, 0, 0));
Iterator output(out, window_out);
// Run the SIMD path if and only if the input is not a row-vector
if (in->info()->dimension(1) != 1)
{
Iterator input(in, window_in);
execute_window_loop(
window_in,
[&](const Coordinates &id)
{
// Compute 4x4 elements per iteration
int x = window_start_x;
for (; x <= (window_end_x - window_step_x); x += window_step_x)
{
const uint16x4_t row0 =
vld1_u16(reinterpret_cast<const uint16_t *>(input.ptr() + 0 * input_stride_in_bytes) + x);
const uint16x4_t row1 =
vld1_u16(reinterpret_cast<const uint16_t *>(input.ptr() + 1 * input_stride_in_bytes) + x);
const uint16x4_t row2 =
vld1_u16(reinterpret_cast<const uint16_t *>(input.ptr() + 2 * input_stride_in_bytes) + x);
const uint16x4_t row3 =
vld1_u16(reinterpret_cast<const uint16_t *>(input.ptr() + 3 * input_stride_in_bytes) + x);
// Transpose 2x2
const uint16x4x2_t k0_u16 = vtrn_u16(row0, row1);
const uint16x4x2_t k1_u16 = vtrn_u16(row2, row3);
// Transpose 4x4
const uint32x2x2_t k0_u32 =
vtrn_u32(vreinterpret_u32_u16(k0_u16.val[0]), vreinterpret_u32_u16(k1_u16.val[0]));
const uint32x2x2_t k1_u32 =
vtrn_u32(vreinterpret_u32_u16(k0_u16.val[1]), vreinterpret_u32_u16(k1_u16.val[1]));
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint16_t) + x * output_stride_in_bytes;
vst1_u16(
reinterpret_cast<uint16_t *>(output.ptr() + dst_offset_in_bytes + 0 * output_stride_in_bytes),
vreinterpret_u16_u32(k0_u32.val[0]));
vst1_u16(
reinterpret_cast<uint16_t *>(output.ptr() + dst_offset_in_bytes + 1 * output_stride_in_bytes),
vreinterpret_u16_u32(k1_u32.val[0]));
vst1_u16(
reinterpret_cast<uint16_t *>(output.ptr() + dst_offset_in_bytes + 2 * output_stride_in_bytes),
vreinterpret_u16_u32(k0_u32.val[1]));
vst1_u16(
reinterpret_cast<uint16_t *>(output.ptr() + dst_offset_in_bytes + 3 * output_stride_in_bytes),
vreinterpret_u16_u32(k1_u32.val[1]));
}
// Compute left-over elements (1x4)
for (; x < window_end_x; ++x)
{
const uint16_t val0 = *(reinterpret_cast<uint16_t *>(input.ptr() + 0 * input_stride_in_bytes) + x);
const uint16_t val1 = *(reinterpret_cast<uint16_t *>(input.ptr() + 1 * input_stride_in_bytes) + x);
const uint16_t val2 = *(reinterpret_cast<uint16_t *>(input.ptr() + 2 * input_stride_in_bytes) + x);
const uint16_t val3 = *(reinterpret_cast<uint16_t *>(input.ptr() + 3 * input_stride_in_bytes) + x);
uint16x4_t result = vdup_n_u16(0);
result = vset_lane_u16(val0, result, 0);
result = vset_lane_u16(val1, result, 1);
result = vset_lane_u16(val2, result, 2);
result = vset_lane_u16(val3, result, 3);
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint16_t) + x * output_stride_in_bytes;
vst1_u16(reinterpret_cast<uint16_t *>(output.ptr() + dst_offset_in_bytes), result);
}
},
input, output);
}
if (left_over_loop_y)
{
window_in.set(Window::DimX, Window::Dimension(window.x().start(), window.x().end(), 1));
window_in.set(Window::DimY, Window::Dimension(window_end_y_multiple_of, window_end_y, 1));
Iterator input(in, window_in);
Iterator output(out, window_out);
// Compute left-over elements along the y dimension (1x1)
execute_window_loop(
window_in,
[&](const Coordinates &id)
{
const uint16_t val0 = *(reinterpret_cast<uint16_t *>(input.ptr()));
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint16_t) + id.x() * output_stride_in_bytes;
*(reinterpret_cast<uint16_t *>(output.ptr() + dst_offset_in_bytes)) = val0;
},
input, output);
}
}
#ifdef __aarch64__
inline uint32x4x2_t vld1q_u32_x2_(const uint32_t *ptr)
{
// gcc-7 doesn't support vld1q_u32_x2 instruction
return {vld1q_u32(ptr), vld1q_u32(ptr + 4)};
}
inline void vst1q_u32_x2_(const uint32_t *ptr, const uint32x4x2_t &val)
{
// gcc-7 doesn't support vst1q_u32_x2 instruction
vst1q_u32(const_cast<uint32_t *>(ptr), val.val[0]);
vst1q_u32(const_cast<uint32_t *>(ptr + 4), val.val[1]);
}
void transpose_32bit_elements(const ITensor *in, ITensor *out, const Window &window)
{
constexpr int window_step_x = 8;
constexpr int window_step_y = 8;
const int window_start_x = window.x().start();
const int window_end_x = window.x().end();
const int window_start_y = window.y().start();
const int window_end_y = std::min(window.y().end(), static_cast<int>(in->info()->dimension(1)));
const int window_end_y_multiple_of = ((window_end_y - window_start_y) / window_step_y) * window_step_y;
const size_t input_stride_in_bytes = in->info()->strides_in_bytes()[1];
const size_t output_stride_in_bytes = out->info()->strides_in_bytes()[1];
// Check if we need a left-over loop for the y dimension
bool left_over_loop_y = (((window_end_y - window_start_y) % window_step_y) != 0);
Window window_in(window);
window_in.set(Window::DimX, Window::Dimension(0, 1, 1));
if (left_over_loop_y)
{
// Check if window_end_y_multiple_of is greater than window_start_y
if (window_end_y_multiple_of > window_start_y)
{
window_in.set(Window::DimY, Window::Dimension(window_start_y, window_end_y_multiple_of, window_step_y));
}
else
{
window_in.set(Window::DimY, Window::Dimension(0, 0, 1));
}
}
Window window_out(window);
window_out.set(Window::DimX, Window::Dimension(0, 0, 0));
window_out.set(Window::DimY, Window::Dimension(0, 0, 0));
Iterator output(out, window_out);
// Run the SIMD path if and only if the input is not a row-vector
if (in->info()->dimension(1) != 1)
{
Iterator input(in, window_in);
execute_window_loop(
window_in,
[&](const Coordinates &id)
{
// Compute 8x8 elements per iteration
int x = window_start_x;
for (; x <= (window_end_x - window_step_x); x += window_step_x)
{
// Load
const uint32x4x2_t row0 =
vld1q_u32_x2_(reinterpret_cast<const uint32_t *>(input.ptr() + 0 * input_stride_in_bytes) + x);
const uint32x4x2_t row1 =
vld1q_u32_x2_(reinterpret_cast<const uint32_t *>(input.ptr() + 1 * input_stride_in_bytes) + x);
const uint32x4x2_t row2 =
vld1q_u32_x2_(reinterpret_cast<const uint32_t *>(input.ptr() + 2 * input_stride_in_bytes) + x);
const uint32x4x2_t row3 =
vld1q_u32_x2_(reinterpret_cast<const uint32_t *>(input.ptr() + 3 * input_stride_in_bytes) + x);
const uint32x4x2_t row4 =
vld1q_u32_x2_(reinterpret_cast<const uint32_t *>(input.ptr() + 4 * input_stride_in_bytes) + x);
const uint32x4x2_t row5 =
vld1q_u32_x2_(reinterpret_cast<const uint32_t *>(input.ptr() + 5 * input_stride_in_bytes) + x);
const uint32x4x2_t row6 =
vld1q_u32_x2_(reinterpret_cast<const uint32_t *>(input.ptr() + 6 * input_stride_in_bytes) + x);
const uint32x4x2_t row7 =
vld1q_u32_x2_(reinterpret_cast<const uint32_t *>(input.ptr() + 7 * input_stride_in_bytes) + x);
// Transpose 2x4
const uint32x4x2_t k0_u32 = {vtrn1q_u32(row0.val[0], row1.val[0]),
vtrn2q_u32(row0.val[0], row1.val[0])};
const uint32x4x2_t k1_u32 = {vtrn1q_u32(row0.val[1], row1.val[1]),
vtrn2q_u32(row0.val[1], row1.val[1])};
const uint32x4x2_t k2_u32 = {vtrn1q_u32(row2.val[0], row3.val[0]),
vtrn2q_u32(row2.val[0], row3.val[0])};
const uint32x4x2_t k3_u32 = {vtrn1q_u32(row2.val[1], row3.val[1]),
vtrn2q_u32(row2.val[1], row3.val[1])};
const uint32x4x2_t k4_u32 = {vtrn1q_u32(row4.val[0], row5.val[0]),
vtrn2q_u32(row4.val[0], row5.val[0])};
const uint32x4x2_t k5_u32 = {vtrn1q_u32(row4.val[1], row5.val[1]),
vtrn2q_u32(row4.val[1], row5.val[1])};
const uint32x4x2_t k6_u32 = {vtrn1q_u32(row6.val[0], row7.val[0]),
vtrn2q_u32(row6.val[0], row7.val[0])};
const uint32x4x2_t k7_u32 = {vtrn1q_u32(row6.val[1], row7.val[1]),
vtrn2q_u32(row6.val[1], row7.val[1])};
// Transpose 2x2
const uint64x2x2_t k0_u64 = {
vtrn1q_u64(vreinterpretq_u64_u32(k0_u32.val[0]), vreinterpretq_u64_u32(k2_u32.val[0])),
vtrn2q_u64(vreinterpretq_u64_u32(k0_u32.val[0]), vreinterpretq_u64_u32(k2_u32.val[0]))};
const uint64x2x2_t k1_u64 = {
vtrn1q_u64(vreinterpretq_u64_u32(k0_u32.val[1]), vreinterpretq_u64_u32(k2_u32.val[1])),
vtrn2q_u64(vreinterpretq_u64_u32(k0_u32.val[1]), vreinterpretq_u64_u32(k2_u32.val[1]))};
const uint64x2x2_t k2_u64 = {
vtrn1q_u64(vreinterpretq_u64_u32(k1_u32.val[0]), vreinterpretq_u64_u32(k3_u32.val[0])),
vtrn2q_u64(vreinterpretq_u64_u32(k1_u32.val[0]), vreinterpretq_u64_u32(k3_u32.val[0]))};
const uint64x2x2_t k3_u64 = {
vtrn1q_u64(vreinterpretq_u64_u32(k1_u32.val[1]), vreinterpretq_u64_u32(k3_u32.val[1])),
vtrn2q_u64(vreinterpretq_u64_u32(k1_u32.val[1]), vreinterpretq_u64_u32(k3_u32.val[1]))};
const uint64x2x2_t k4_u64 = {
vtrn1q_u64(vreinterpretq_u64_u32(k4_u32.val[0]), vreinterpretq_u64_u32(k6_u32.val[0])),
vtrn2q_u64(vreinterpretq_u64_u32(k4_u32.val[0]), vreinterpretq_u64_u32(k6_u32.val[0]))};
const uint64x2x2_t k5_u64 = {
vtrn1q_u64(vreinterpretq_u64_u32(k4_u32.val[1]), vreinterpretq_u64_u32(k6_u32.val[1])),
vtrn2q_u64(vreinterpretq_u64_u32(k4_u32.val[1]), vreinterpretq_u64_u32(k6_u32.val[1]))};
const uint64x2x2_t k6_u64 = {
vtrn1q_u64(vreinterpretq_u64_u32(k5_u32.val[0]), vreinterpretq_u64_u32(k7_u32.val[0])),
vtrn2q_u64(vreinterpretq_u64_u32(k5_u32.val[0]), vreinterpretq_u64_u32(k7_u32.val[0]))};
const uint64x2x2_t k7_u64 = {
vtrn1q_u64(vreinterpretq_u64_u32(k5_u32.val[1]), vreinterpretq_u64_u32(k7_u32.val[1])),
vtrn2q_u64(vreinterpretq_u64_u32(k5_u32.val[1]), vreinterpretq_u64_u32(k7_u32.val[1]))};
// Swap blocks
const uint32x4x2_t col0 = {vreinterpretq_u32_u64(k0_u64.val[0]),
vreinterpretq_u32_u64(k4_u64.val[0])};
const uint32x4x2_t col1 = {vreinterpretq_u32_u64(k1_u64.val[0]),
vreinterpretq_u32_u64(k5_u64.val[0])};
const uint32x4x2_t col2 = {vreinterpretq_u32_u64(k0_u64.val[1]),
vreinterpretq_u32_u64(k4_u64.val[1])};
const uint32x4x2_t col3 = {vreinterpretq_u32_u64(k1_u64.val[1]),
vreinterpretq_u32_u64(k5_u64.val[1])};
const uint32x4x2_t col4 = {vreinterpretq_u32_u64(k2_u64.val[0]),
vreinterpretq_u32_u64(k6_u64.val[0])};
const uint32x4x2_t col5 = {vreinterpretq_u32_u64(k3_u64.val[0]),
vreinterpretq_u32_u64(k7_u64.val[0])};
const uint32x4x2_t col6 = {vreinterpretq_u32_u64(k2_u64.val[1]),
vreinterpretq_u32_u64(k6_u64.val[1])};
const uint32x4x2_t col7 = {vreinterpretq_u32_u64(k3_u64.val[1]),
vreinterpretq_u32_u64(k7_u64.val[1])};
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint32_t) + x * output_stride_in_bytes;
// Store
vst1q_u32_x2_(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 0 * output_stride_in_bytes),
col0);
vst1q_u32_x2_(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 1 * output_stride_in_bytes),
col1);
vst1q_u32_x2_(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 2 * output_stride_in_bytes),
col2);
vst1q_u32_x2_(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 3 * output_stride_in_bytes),
col3);
vst1q_u32_x2_(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 4 * output_stride_in_bytes),
col4);
vst1q_u32_x2_(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 5 * output_stride_in_bytes),
col5);
vst1q_u32_x2_(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 6 * output_stride_in_bytes),
col6);
vst1q_u32_x2_(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 7 * output_stride_in_bytes),
col7);
}
// Compute left-over elements (8x1)
for (; x < window_end_x; ++x)
{
const uint32_t val0 = *(reinterpret_cast<uint32_t *>(input.ptr() + 0 * input_stride_in_bytes) + x);
const uint32_t val1 = *(reinterpret_cast<uint32_t *>(input.ptr() + 1 * input_stride_in_bytes) + x);
const uint32_t val2 = *(reinterpret_cast<uint32_t *>(input.ptr() + 2 * input_stride_in_bytes) + x);
const uint32_t val3 = *(reinterpret_cast<uint32_t *>(input.ptr() + 3 * input_stride_in_bytes) + x);
const uint32_t val4 = *(reinterpret_cast<uint32_t *>(input.ptr() + 4 * input_stride_in_bytes) + x);
const uint32_t val5 = *(reinterpret_cast<uint32_t *>(input.ptr() + 5 * input_stride_in_bytes) + x);
const uint32_t val6 = *(reinterpret_cast<uint32_t *>(input.ptr() + 6 * input_stride_in_bytes) + x);
const uint32_t val7 = *(reinterpret_cast<uint32_t *>(input.ptr() + 7 * input_stride_in_bytes) + x);
uint32x4_t result0 = vdupq_n_u32(0);
uint32x4_t result1 = vdupq_n_u32(0);
result0 = vsetq_lane_u32(val0, result0, 0);
result0 = vsetq_lane_u32(val1, result0, 1);
result0 = vsetq_lane_u32(val2, result0, 2);
result0 = vsetq_lane_u32(val3, result0, 3);
result1 = vsetq_lane_u32(val4, result1, 0);
result1 = vsetq_lane_u32(val5, result1, 1);
result1 = vsetq_lane_u32(val6, result1, 2);
result1 = vsetq_lane_u32(val7, result1, 3);
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint32_t) + x * output_stride_in_bytes;
vst1q_u32_x2_(reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes), {result0, result1});
}
},
input, output);
}
if (left_over_loop_y)
{
window_in.set(Window::DimX, Window::Dimension(window.x().start(), window.x().end(), 1));
window_in.set(Window::DimY, Window::Dimension(window_end_y_multiple_of, window_end_y, 1));
Iterator input(in, window_in);
Iterator output(out, window_out);
// Compute left-over elements along the y dimension (1x1)
execute_window_loop(
window_in,
[&](const Coordinates &id)
{
const uint32_t val0 = *(reinterpret_cast<uint32_t *>(input.ptr()));
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint32_t) + id.x() * output_stride_in_bytes;
*(reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes)) = val0;
},
input, output);
}
}
#else // __aarch64__
void transpose_32bit_elements(const ITensor *in, ITensor *out, const Window &window)
{
const int window_step_x = 4;
const int window_step_y = 4;
const int window_start_x = window.x().start();
const int window_end_x = window.x().end();
const int window_start_y = window.y().start();
const int window_end_y = std::min(window.y().end(), static_cast<int>(in->info()->dimension(1)));
const int window_end_y_multiple_of = ((window_end_y - window_start_y) / window_step_y) * window_step_y;
const size_t input_stride_in_bytes = in->info()->strides_in_bytes()[1];
const size_t output_stride_in_bytes = out->info()->strides_in_bytes()[1];
// Check if we need a left-over loop for the y dimension
bool left_over_loop_y = (((window_end_y - window_start_y) % window_step_y) != 0);
Window window_in(window);
window_in.set(Window::DimX, Window::Dimension(0, 1, 1));
if (left_over_loop_y)
{
// Check if window_end_y_multiple_of is greater than window_start_y
if (window_end_y_multiple_of > window_start_y)
{
window_in.set(Window::DimY, Window::Dimension(window_start_y, window_end_y_multiple_of, window_step_y));
}
else
{
window_in.set(Window::DimY, Window::Dimension(0, 0, 1));
}
}
Window window_out(window);
window_out.set(Window::DimX, Window::Dimension(0, 0, 0));
window_out.set(Window::DimY, Window::Dimension(0, 0, 0));
Iterator output(out, window_out);
// Run the SIMD path if and only if the input is not a row-vector
if (in->info()->dimension(1) != 1)
{
Iterator input(in, window_in);
execute_window_loop(
window_in,
[&](const Coordinates &id)
{
// Compute 4x4 elements per iteration
int x = window_start_x;
for (; x <= (window_end_x - window_step_x); x += window_step_x)
{
const uint32x4_t row0 =
vld1q_u32(reinterpret_cast<const uint32_t *>(input.ptr() + 0 * input_stride_in_bytes) + x);
const uint32x4_t row1 =
vld1q_u32(reinterpret_cast<const uint32_t *>(input.ptr() + 1 * input_stride_in_bytes) + x);
const uint32x4_t row2 =
vld1q_u32(reinterpret_cast<const uint32_t *>(input.ptr() + 2 * input_stride_in_bytes) + x);
const uint32x4_t row3 =
vld1q_u32(reinterpret_cast<const uint32_t *>(input.ptr() + 3 * input_stride_in_bytes) + x);
// Transpose 2x2
const uint32x2x2_t k0_u32 = vtrn_u32(vget_low_u32(row0), vget_low_u32(row1));
const uint32x2x2_t k1_u32 = vtrn_u32(vget_high_u32(row2), vget_high_u32(row3));
const uint32x2x2_t k2_u32 = vtrn_u32(vget_high_u32(row0), vget_high_u32(row1));
const uint32x2x2_t k3_u32 = vtrn_u32(vget_low_u32(row2), vget_low_u32(row3));
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint32_t) + x * output_stride_in_bytes;
// Swap block 01 with block 10 and store
vst1q_u32(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 0 * output_stride_in_bytes),
vcombine_u32(k0_u32.val[0], k3_u32.val[0]));
vst1q_u32(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 1 * output_stride_in_bytes),
vcombine_u32(k0_u32.val[1], k3_u32.val[1]));
vst1q_u32(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 2 * output_stride_in_bytes),
vcombine_u32(k2_u32.val[0], k1_u32.val[0]));
vst1q_u32(
reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes + 3 * output_stride_in_bytes),
vcombine_u32(k2_u32.val[1], k1_u32.val[1]));
}
// Compute left-over elements (1x4)
for (; x < window_end_x; ++x)
{
const uint32_t val0 = *(reinterpret_cast<uint32_t *>(input.ptr() + 0 * input_stride_in_bytes) + x);
const uint32_t val1 = *(reinterpret_cast<uint32_t *>(input.ptr() + 1 * input_stride_in_bytes) + x);
const uint32_t val2 = *(reinterpret_cast<uint32_t *>(input.ptr() + 2 * input_stride_in_bytes) + x);
const uint32_t val3 = *(reinterpret_cast<uint32_t *>(input.ptr() + 3 * input_stride_in_bytes) + x);
uint32x4_t result = vdupq_n_u32(0);
result = vsetq_lane_u32(val0, result, 0);
result = vsetq_lane_u32(val1, result, 1);
result = vsetq_lane_u32(val2, result, 2);
result = vsetq_lane_u32(val3, result, 3);
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint32_t) + x * output_stride_in_bytes;
vst1q_u32(reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes), result);
}
},
input, output);
}
if (left_over_loop_y)
{
window_in.set(Window::DimX, Window::Dimension(window.x().start(), window.x().end(), 1));
window_in.set(Window::DimY, Window::Dimension(window_end_y_multiple_of, window_end_y, 1));
Iterator input(in, window_in);
Iterator output(out, window_out);
// Compute left-over elements along the y dimension (1x1)
execute_window_loop(
window_in,
[&](const Coordinates &id)
{
const uint32_t val0 = *(reinterpret_cast<uint32_t *>(input.ptr()));
// Compute destination address
const size_t dst_offset_in_bytes = id.y() * sizeof(uint32_t) + id.x() * output_stride_in_bytes;
*(reinterpret_cast<uint32_t *>(output.ptr() + dst_offset_in_bytes)) = val0;
},
input, output);
}
}
#endif // __aarch64__
} // namespace
void CpuTransposeKernel::configure(const ITensorInfo *src, ITensorInfo *dst)
{
ARM_COMPUTE_ERROR_ON_NULLPTR(src, dst);
// Destination auto inizialitation if not yet initialized
const TensorShape dst_shape = misc::shape_calculator::compute_transposed_shape(*src);
auto_init_if_empty(*dst, src->clone()->set_tensor_shape(dst_shape));
// Explicitly set the tensor shape to preserve dimensions
dst->set_tensor_shape(dst_shape);
// Perform validation step
ARM_COMPUTE_ERROR_THROW_ON(validate(src, dst));
// Note: This kernel performs 16 elements per iteration.
// However, since we use a left-over for loop on both dimensions (X and Y), we cannot have any read or write out of memory
// For this reason num_elems_processed_per_iteration_x is set to 1
const unsigned int num_elems_processed_per_iteration_x = 1;
const unsigned int num_elems_processed_per_iteration_y = num_elems_processed(src->element_size());
// Configure kernel window
Window win =
calculate_max_window(*src, Steps(num_elems_processed_per_iteration_x, num_elems_processed_per_iteration_y));
// The CpuTranspose doesn't need padding so update_window_and_padding() can be skipped
Coordinates coord;
coord.set_num_dimensions(dst->num_dimensions());
dst->set_valid_region(ValidRegion(coord, dst->tensor_shape()));
ICpuKernel::configure(win);
}
Status CpuTransposeKernel::validate(const ITensorInfo *src, const ITensorInfo *dst)
{
ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(src);
//Note: ARM_COMPUTE_RETURN_ERROR_ON_CPU_F16_UNSUPPORTED(input) is not needed here as this kernel doesn't use CPU FP16 instructions.
ARM_COMPUTE_RETURN_ERROR_ON(src->data_type() == DataType::UNKNOWN);
// Error if input is not 8 bit, 16bit or 32bit
ARM_COMPUTE_RETURN_ERROR_ON_MSG(src->element_size() != 1 && src->element_size() != 2 && src->element_size() != 4,
"Element size not supported");
// Validate configured destination
if (dst->total_size() != 0)
{
const TensorShape dst_shape = misc::shape_calculator::compute_transposed_shape(*src);
ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DIMENSIONS(dst->tensor_shape(), dst_shape);
ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_QUANTIZATION_INFO(src, dst);
ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(src, dst);
}
return Status{};
}
void CpuTransposeKernel::run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info)
{
ARM_COMPUTE_UNUSED(info);
ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICpuKernel::window(), window);
const auto src = tensors.get_const_tensor(TensorType::ACL_SRC);
auto dst = tensors.get_tensor(TensorType::ACL_DST);
switch (src->info()->element_size())
{
case 1:
transpose_8bit_elements(src, dst, window);
break;
case 2:
transpose_16bit_elements(src, dst, window);
break;
case 4:
transpose_32bit_elements(src, dst, window);
break;
default:
ARM_COMPUTE_ERROR("Element size not supported");
break;
}
}
const char *CpuTransposeKernel::name() const
{
return "CpuTransposeKernel";
}
} // namespace kernels
} // namespace cpu
} // namespace arm_compute